diff --git a/.gitignore b/.gitignore
index c37f7c5578..e8bd18a98e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -12,7 +12,6 @@ yarn.lock
 /node6
 /src/generated/*
 lib/
-/types/*
 jest-report.json
 drivers/
 /docs/api.json
diff --git a/package.json b/package.json
index de8fb85e79..5d218d8c06 100644
--- a/package.json
+++ b/package.json
@@ -19,13 +19,12 @@
     "tsc-installer": "tsc -p ./src/install/tsconfig.json",
     "doc": "node utils/doclint/cli.js",
     "test-infra": "folio utils/doclint/check_public_api/test/test.js && folio utils/doclint/preprocessor/test.js",
-    "lint": "npm run eslint && npm run tsc && npm run doc && npm run check-deps && npm run generate-channels && npm run test-types && npm run test-infra",
+    "lint": "npm run eslint && npm run tsc && npm run doc && npm run check-deps && npm run generate-channels && node utils/generate_types/ --check-clean && npm run test-types && npm run test-infra",
     "clean": "rimraf lib && rimraf types",
     "prepare": "node install-from-github.js",
-    "build": "node utils/runWebpack.js --mode='development' && tsc -p . && npm run generate-types && npm run generate-api-json",
+    "build": "node utils/runWebpack.js --mode='development' && tsc -p . && npm run generate-api-json",
     "watch": "node utils/watch.js",
-    "test-types": "npm run generate-types && npx -p typescript@3.7.5 tsc -p utils/generate_types/test/tsconfig.json && npm run typecheck-tests",
-    "generate-types": "node utils/generate_types/",
+    "test-types": "node utils/generate_types/ && npx -p typescript@3.7.5 tsc -p utils/generate_types/test/tsconfig.json && npm run typecheck-tests",
     "generate-channels": "node utils/generate_channels.js",
     "generate-api-json": "node utils/doclint/generateApiJson.js > docs/api.json",
     "typecheck-tests": "tsc -p ./test/",
diff --git a/types/protocol.d.ts b/types/protocol.d.ts
new file mode 100644
index 0000000000..2520c8ac46
--- /dev/null
+++ b/types/protocol.d.ts
@@ -0,0 +1,16834 @@
+// This is generated from /utils/protocol-types-generator/index.js
+type binary = string;
+export module Protocol {
+  export module Accessibility {
+    /**
+     * Unique accessibility node identifier.
+     */
+    export type AXNodeId = string;
+    /**
+     * Enum of possible property types.
+     */
+    export type AXValueType = "boolean"|"tristate"|"booleanOrUndefined"|"idref"|"idrefList"|"integer"|"node"|"nodeList"|"number"|"string"|"computedString"|"token"|"tokenList"|"domRelation"|"role"|"internalRole"|"valueUndefined";
+    /**
+     * Enum of possible property sources.
+     */
+    export type AXValueSourceType = "attribute"|"implicit"|"style"|"contents"|"placeholder"|"relatedElement";
+    /**
+     * Enum of possible native property sources (as a subtype of a particular AXValueSourceType).
+     */
+    export type AXValueNativeSourceType = "figcaption"|"label"|"labelfor"|"labelwrapped"|"legend"|"rubyannotation"|"tablecaption"|"title"|"other";
+    /**
+     * A single source for a computed AX property.
+     */
+    export interface AXValueSource {
+      /**
+       * What type of source this is.
+       */
+      type: AXValueSourceType;
+      /**
+       * The value of this property source.
+       */
+      value?: AXValue;
+      /**
+       * The name of the relevant attribute, if any.
+       */
+      attribute?: string;
+      /**
+       * The value of the relevant attribute, if any.
+       */
+      attributeValue?: AXValue;
+      /**
+       * Whether this source is superseded by a higher priority source.
+       */
+      superseded?: boolean;
+      /**
+       * The native markup source for this value, e.g. a <label> element.
+       */
+      nativeSource?: AXValueNativeSourceType;
+      /**
+       * The value, such as a node or node list, of the native source.
+       */
+      nativeSourceValue?: AXValue;
+      /**
+       * Whether the value for this property is invalid.
+       */
+      invalid?: boolean;
+      /**
+       * Reason for the value being invalid, if it is.
+       */
+      invalidReason?: string;
+    }
+    export interface AXRelatedNode {
+      /**
+       * The BackendNodeId of the related DOM node.
+       */
+      backendDOMNodeId: DOM.BackendNodeId;
+      /**
+       * The IDRef value provided, if any.
+       */
+      idref?: string;
+      /**
+       * The text alternative of this node in the current context.
+       */
+      text?: string;
+    }
+    export interface AXProperty {
+      /**
+       * The name of this property.
+       */
+      name: AXPropertyName;
+      /**
+       * The value of this property.
+       */
+      value: AXValue;
+    }
+    /**
+     * A single computed AX property.
+     */
+    export interface AXValue {
+      /**
+       * The type of this value.
+       */
+      type: AXValueType;
+      /**
+       * The computed value of this property.
+       */
+      value?: any;
+      /**
+       * One or more related nodes, if applicable.
+       */
+      relatedNodes?: AXRelatedNode[];
+      /**
+       * The sources which contributed to the computation of this property.
+       */
+      sources?: AXValueSource[];
+    }
+    /**
+     * Values of AXProperty name:
+- from 'busy' to 'roledescription': states which apply to every AX node
+- from 'live' to 'root': attributes which apply to nodes in live regions
+- from 'autocomplete' to 'valuetext': attributes which apply to widgets
+- from 'checked' to 'selected': states which apply to widgets
+- from 'activedescendant' to 'owns' - relationships between elements other than parent/child/sibling.
+     */
+    export type AXPropertyName = "busy"|"disabled"|"editable"|"focusable"|"focused"|"hidden"|"hiddenRoot"|"invalid"|"keyshortcuts"|"settable"|"roledescription"|"live"|"atomic"|"relevant"|"root"|"autocomplete"|"hasPopup"|"level"|"multiselectable"|"orientation"|"multiline"|"readonly"|"required"|"valuemin"|"valuemax"|"valuetext"|"checked"|"expanded"|"modal"|"pressed"|"selected"|"activedescendant"|"controls"|"describedby"|"details"|"errormessage"|"flowto"|"labelledby"|"owns";
+    /**
+     * A node in the accessibility tree.
+     */
+    export interface AXNode {
+      /**
+       * Unique identifier for this node.
+       */
+      nodeId: AXNodeId;
+      /**
+       * Whether this node is ignored for accessibility
+       */
+      ignored: boolean;
+      /**
+       * Collection of reasons why this node is hidden.
+       */
+      ignoredReasons?: AXProperty[];
+      /**
+       * This `Node`'s role, whether explicit or implicit.
+       */
+      role?: AXValue;
+      /**
+       * The accessible name for this `Node`.
+       */
+      name?: AXValue;
+      /**
+       * The accessible description for this `Node`.
+       */
+      description?: AXValue;
+      /**
+       * The value for this `Node`.
+       */
+      value?: AXValue;
+      /**
+       * All other properties
+       */
+      properties?: AXProperty[];
+      /**
+       * IDs for each of this node's child nodes.
+       */
+      childIds?: AXNodeId[];
+      /**
+       * The backend ID for the associated DOM node, if any.
+       */
+      backendDOMNodeId?: DOM.BackendNodeId;
+    }
+    
+    
+    /**
+     * Disables the accessibility domain.
+     */
+    export type disableParameters = {
+    }
+    export type disableReturnValue = {
+    }
+    /**
+     * Enables the accessibility domain which causes `AXNodeId`s to remain consistent between method calls.
+This turns on accessibility for the page, which can impact performance until accessibility is disabled.
+     */
+    export type enableParameters = {
+    }
+    export type enableReturnValue = {
+    }
+    /**
+     * Fetches the accessibility node and partial accessibility tree for this DOM node, if it exists.
+     */
+    export type getPartialAXTreeParameters = {
+      /**
+       * Identifier of the node to get the partial accessibility tree for.
+       */
+      nodeId?: DOM.NodeId;
+      /**
+       * Identifier of the backend node to get the partial accessibility tree for.
+       */
+      backendNodeId?: DOM.BackendNodeId;
+      /**
+       * JavaScript object id of the node wrapper to get the partial accessibility tree for.
+       */
+      objectId?: Runtime.RemoteObjectId;
+      /**
+       * Whether to fetch this nodes ancestors, siblings and children. Defaults to true.
+       */
+      fetchRelatives?: boolean;
+    }
+    export type getPartialAXTreeReturnValue = {
+      /**
+       * The `Accessibility.AXNode` for this DOM node, if it exists, plus its ancestors, siblings and
+children, if requested.
+       */
+      nodes: AXNode[];
+    }
+    /**
+     * Fetches the entire accessibility tree for the root Document
+     */
+    export type getFullAXTreeParameters = {
+      /**
+       * The maximum depth at which descendants of the root node should be retrieved.
+If omitted, the full tree is returned.
+       */
+      max_depth?: number;
+    }
+    export type getFullAXTreeReturnValue = {
+      nodes: AXNode[];
+    }
+    /**
+     * Fetches a particular accessibility node by AXNodeId.
+Requires `enable()` to have been called previously.
+     */
+    export type getChildAXNodesParameters = {
+      id: AXNodeId;
+    }
+    export type getChildAXNodesReturnValue = {
+      nodes: AXNode[];
+    }
+    /**
+     * Query a DOM node's accessibility subtree for accessible name and role.
+This command computes the name and role for all nodes in the subtree, including those that are
+ignored for accessibility, and returns those that mactch the specified name and role. If no DOM
+node is specified, or the DOM node does not exist, the command returns an error. If neither
+`accessibleName` or `role` is specified, it returns all the accessibility nodes in the subtree.
+     */
+    export type queryAXTreeParameters = {
+      /**
+       * Identifier of the node for the root to query.
+       */
+      nodeId?: DOM.NodeId;
+      /**
+       * Identifier of the backend node for the root to query.
+       */
+      backendNodeId?: DOM.BackendNodeId;
+      /**
+       * JavaScript object id of the node wrapper for the root to query.
+       */
+      objectId?: Runtime.RemoteObjectId;
+      /**
+       * Find nodes with this computed name.
+       */
+      accessibleName?: string;
+      /**
+       * Find nodes with this computed role.
+       */
+      role?: string;
+    }
+    export type queryAXTreeReturnValue = {
+      /**
+       * A list of `Accessibility.AXNode` matching the specified attributes,
+including nodes that are ignored for accessibility.
+       */
+      nodes: AXNode[];
+    }
+  }
+  
+  export module Animation {
+    /**
+     * Animation instance.
+     */
+    export interface Animation {
+      /**
+       * `Animation`'s id.
+       */
+      id: string;
+      /**
+       * `Animation`'s name.
+       */
+      name: string;
+      /**
+       * `Animation`'s internal paused state.
+       */
+      pausedState: boolean;
+      /**
+       * `Animation`'s play state.
+       */
+      playState: string;
+      /**
+       * `Animation`'s playback rate.
+       */
+      playbackRate: number;
+      /**
+       * `Animation`'s start time.
+       */
+      startTime: number;
+      /**
+       * `Animation`'s current time.
+       */
+      currentTime: number;
+      /**
+       * Animation type of `Animation`.
+       */
+      type: "CSSTransition"|"CSSAnimation"|"WebAnimation";
+      /**
+       * `Animation`'s source animation node.
+       */
+      source?: AnimationEffect;
+      /**
+       * A unique ID for `Animation` representing the sources that triggered this CSS
+animation/transition.
+       */
+      cssId?: string;
+    }
+    /**
+     * AnimationEffect instance
+     */
+    export interface AnimationEffect {
+      /**
+       * `AnimationEffect`'s delay.
+       */
+      delay: number;
+      /**
+       * `AnimationEffect`'s end delay.
+       */
+      endDelay: number;
+      /**
+       * `AnimationEffect`'s iteration start.
+       */
+      iterationStart: number;
+      /**
+       * `AnimationEffect`'s iterations.
+       */
+      iterations: number;
+      /**
+       * `AnimationEffect`'s iteration duration.
+       */
+      duration: number;
+      /**
+       * `AnimationEffect`'s playback direction.
+       */
+      direction: string;
+      /**
+       * `AnimationEffect`'s fill mode.
+       */
+      fill: string;
+      /**
+       * `AnimationEffect`'s target node.
+       */
+      backendNodeId?: DOM.BackendNodeId;
+      /**
+       * `AnimationEffect`'s keyframes.
+       */
+      keyframesRule?: KeyframesRule;
+      /**
+       * `AnimationEffect`'s timing function.
+       */
+      easing: string;
+    }
+    /**
+     * Keyframes Rule
+     */
+    export interface KeyframesRule {
+      /**
+       * CSS keyframed animation's name.
+       */
+      name?: string;
+      /**
+       * List of animation keyframes.
+       */
+      keyframes: KeyframeStyle[];
+    }
+    /**
+     * Keyframe Style
+     */
+    export interface KeyframeStyle {
+      /**
+       * Keyframe's time offset.
+       */
+      offset: string;
+      /**
+       * `AnimationEffect`'s timing function.
+       */
+      easing: string;
+    }
+    
+    /**
+     * Event for when an animation has been cancelled.
+     */
+    export type animationCanceledPayload = {
+      /**
+       * Id of the animation that was cancelled.
+       */
+      id: string;
+    }
+    /**
+     * Event for each animation that has been created.
+     */
+    export type animationCreatedPayload = {
+      /**
+       * Id of the animation that was created.
+       */
+      id: string;
+    }
+    /**
+     * Event for animation that has been started.
+     */
+    export type animationStartedPayload = {
+      /**
+       * Animation that was started.
+       */
+      animation: Animation;
+    }
+    
+    /**
+     * Disables animation domain notifications.
+     */
+    export type disableParameters = {
+    }
+    export type disableReturnValue = {
+    }
+    /**
+     * Enables animation domain notifications.
+     */
+    export type enableParameters = {
+    }
+    export type enableReturnValue = {
+    }
+    /**
+     * Returns the current time of the an animation.
+     */
+    export type getCurrentTimeParameters = {
+      /**
+       * Id of animation.
+       */
+      id: string;
+    }
+    export type getCurrentTimeReturnValue = {
+      /**
+       * Current time of the page.
+       */
+      currentTime: number;
+    }
+    /**
+     * Gets the playback rate of the document timeline.
+     */
+    export type getPlaybackRateParameters = {
+    }
+    export type getPlaybackRateReturnValue = {
+      /**
+       * Playback rate for animations on page.
+       */
+      playbackRate: number;
+    }
+    /**
+     * Releases a set of animations to no longer be manipulated.
+     */
+    export type releaseAnimationsParameters = {
+      /**
+       * List of animation ids to seek.
+       */
+      animations: string[];
+    }
+    export type releaseAnimationsReturnValue = {
+    }
+    /**
+     * Gets the remote object of the Animation.
+     */
+    export type resolveAnimationParameters = {
+      /**
+       * Animation id.
+       */
+      animationId: string;
+    }
+    export type resolveAnimationReturnValue = {
+      /**
+       * Corresponding remote object.
+       */
+      remoteObject: Runtime.RemoteObject;
+    }
+    /**
+     * Seek a set of animations to a particular time within each animation.
+     */
+    export type seekAnimationsParameters = {
+      /**
+       * List of animation ids to seek.
+       */
+      animations: string[];
+      /**
+       * Set the current time of each animation.
+       */
+      currentTime: number;
+    }
+    export type seekAnimationsReturnValue = {
+    }
+    /**
+     * Sets the paused state of a set of animations.
+     */
+    export type setPausedParameters = {
+      /**
+       * Animations to set the pause state of.
+       */
+      animations: string[];
+      /**
+       * Paused state to set to.
+       */
+      paused: boolean;
+    }
+    export type setPausedReturnValue = {
+    }
+    /**
+     * Sets the playback rate of the document timeline.
+     */
+    export type setPlaybackRateParameters = {
+      /**
+       * Playback rate for animations on page
+       */
+      playbackRate: number;
+    }
+    export type setPlaybackRateReturnValue = {
+    }
+    /**
+     * Sets the timing of an animation node.
+     */
+    export type setTimingParameters = {
+      /**
+       * Animation id.
+       */
+      animationId: string;
+      /**
+       * Duration of the animation.
+       */
+      duration: number;
+      /**
+       * Delay of the animation.
+       */
+      delay: number;
+    }
+    export type setTimingReturnValue = {
+    }
+  }
+  
+  export module ApplicationCache {
+    /**
+     * Detailed application cache resource information.
+     */
+    export interface ApplicationCacheResource {
+      /**
+       * Resource url.
+       */
+      url: string;
+      /**
+       * Resource size.
+       */
+      size: number;
+      /**
+       * Resource type.
+       */
+      type: string;
+    }
+    /**
+     * Detailed application cache information.
+     */
+    export interface ApplicationCache {
+      /**
+       * Manifest URL.
+       */
+      manifestURL: string;
+      /**
+       * Application cache size.
+       */
+      size: number;
+      /**
+       * Application cache creation time.
+       */
+      creationTime: number;
+      /**
+       * Application cache update time.
+       */
+      updateTime: number;
+      /**
+       * Application cache resources.
+       */
+      resources: ApplicationCacheResource[];
+    }
+    /**
+     * Frame identifier - manifest URL pair.
+     */
+    export interface FrameWithManifest {
+      /**
+       * Frame identifier.
+       */
+      frameId: Page.FrameId;
+      /**
+       * Manifest URL.
+       */
+      manifestURL: string;
+      /**
+       * Application cache status.
+       */
+      status: number;
+    }
+    
+    export type applicationCacheStatusUpdatedPayload = {
+      /**
+       * Identifier of the frame containing document whose application cache updated status.
+       */
+      frameId: Page.FrameId;
+      /**
+       * Manifest URL.
+       */
+      manifestURL: string;
+      /**
+       * Updated application cache status.
+       */
+      status: number;
+    }
+    export type networkStateUpdatedPayload = {
+      isNowOnline: boolean;
+    }
+    
+    /**
+     * Enables application cache domain notifications.
+     */
+    export type enableParameters = {
+    }
+    export type enableReturnValue = {
+    }
+    /**
+     * Returns relevant application cache data for the document in given frame.
+     */
+    export type getApplicationCacheForFrameParameters = {
+      /**
+       * Identifier of the frame containing document whose application cache is retrieved.
+       */
+      frameId: Page.FrameId;
+    }
+    export type getApplicationCacheForFrameReturnValue = {
+      /**
+       * Relevant application cache data for the document in given frame.
+       */
+      applicationCache: ApplicationCache;
+    }
+    /**
+     * Returns array of frame identifiers with manifest urls for each frame containing a document
+associated with some application cache.
+     */
+    export type getFramesWithManifestsParameters = {
+    }
+    export type getFramesWithManifestsReturnValue = {
+      /**
+       * Array of frame identifiers with manifest urls for each frame containing a document
+associated with some application cache.
+       */
+      frameIds: FrameWithManifest[];
+    }
+    /**
+     * Returns manifest URL for document in the given frame.
+     */
+    export type getManifestForFrameParameters = {
+      /**
+       * Identifier of the frame containing document whose manifest is retrieved.
+       */
+      frameId: Page.FrameId;
+    }
+    export type getManifestForFrameReturnValue = {
+      /**
+       * Manifest URL for document in the given frame.
+       */
+      manifestURL: string;
+    }
+  }
+  
+  /**
+   * Audits domain allows investigation of page violations and possible improvements.
+   */
+  export module Audits {
+    /**
+     * Information about a cookie that is affected by an inspector issue.
+     */
+    export interface AffectedCookie {
+      /**
+       * The following three properties uniquely identify a cookie
+       */
+      name: string;
+      path: string;
+      domain: string;
+    }
+    /**
+     * Information about a request that is affected by an inspector issue.
+     */
+    export interface AffectedRequest {
+      /**
+       * The unique request id.
+       */
+      requestId: Network.RequestId;
+      url?: string;
+    }
+    /**
+     * Information about the frame affected by an inspector issue.
+     */
+    export interface AffectedFrame {
+      frameId: Page.FrameId;
+    }
+    export type SameSiteCookieExclusionReason = "ExcludeSameSiteUnspecifiedTreatedAsLax"|"ExcludeSameSiteNoneInsecure"|"ExcludeSameSiteLax"|"ExcludeSameSiteStrict";
+    export type SameSiteCookieWarningReason = "WarnSameSiteUnspecifiedCrossSiteContext"|"WarnSameSiteNoneInsecure"|"WarnSameSiteUnspecifiedLaxAllowUnsafe"|"WarnSameSiteStrictLaxDowngradeStrict"|"WarnSameSiteStrictCrossDowngradeStrict"|"WarnSameSiteStrictCrossDowngradeLax"|"WarnSameSiteLaxCrossDowngradeStrict"|"WarnSameSiteLaxCrossDowngradeLax";
+    export type SameSiteCookieOperation = "SetCookie"|"ReadCookie";
+    /**
+     * This information is currently necessary, as the front-end has a difficult
+time finding a specific cookie. With this, we can convey specific error
+information without the cookie.
+     */
+    export interface SameSiteCookieIssueDetails {
+      cookie: AffectedCookie;
+      cookieWarningReasons: SameSiteCookieWarningReason[];
+      cookieExclusionReasons: SameSiteCookieExclusionReason[];
+      /**
+       * Optionally identifies the site-for-cookies and the cookie url, which
+may be used by the front-end as additional context.
+       */
+      operation: SameSiteCookieOperation;
+      siteForCookies?: string;
+      cookieUrl?: string;
+      request?: AffectedRequest;
+    }
+    export type MixedContentResolutionStatus = "MixedContentBlocked"|"MixedContentAutomaticallyUpgraded"|"MixedContentWarning";
+    export type MixedContentResourceType = "Audio"|"Beacon"|"CSPReport"|"Download"|"EventSource"|"Favicon"|"Font"|"Form"|"Frame"|"Image"|"Import"|"Manifest"|"Ping"|"PluginData"|"PluginResource"|"Prefetch"|"Resource"|"Script"|"ServiceWorker"|"SharedWorker"|"Stylesheet"|"Track"|"Video"|"Worker"|"XMLHttpRequest"|"XSLT";
+    export interface MixedContentIssueDetails {
+      /**
+       * The type of resource causing the mixed content issue (css, js, iframe,
+form,...). Marked as optional because it is mapped to from
+blink::mojom::RequestContextType, which will be replaced
+by network::mojom::RequestDestination
+       */
+      resourceType?: MixedContentResourceType;
+      /**
+       * The way the mixed content issue is being resolved.
+       */
+      resolutionStatus: MixedContentResolutionStatus;
+      /**
+       * The unsafe http url causing the mixed content issue.
+       */
+      insecureURL: string;
+      /**
+       * The url responsible for the call to an unsafe url.
+       */
+      mainResourceURL: string;
+      /**
+       * The mixed content request.
+Does not always exist (e.g. for unsafe form submission urls).
+       */
+      request?: AffectedRequest;
+      /**
+       * Optional because not every mixed content issue is necessarily linked to a frame.
+       */
+      frame?: AffectedFrame;
+    }
+    /**
+     * Enum indicating the reason a response has been blocked. These reasons are
+refinements of the net error BLOCKED_BY_RESPONSE.
+     */
+    export type BlockedByResponseReason = "CoepFrameResourceNeedsCoepHeader"|"CoopSandboxedIFrameCannotNavigateToCoopPage"|"CorpNotSameOrigin"|"CorpNotSameOriginAfterDefaultedToSameOriginByCoep"|"CorpNotSameSite";
+    /**
+     * Details for a request that has been blocked with the BLOCKED_BY_RESPONSE
+code. Currently only used for COEP/COOP, but may be extended to include
+some CSP errors in the future.
+     */
+    export interface BlockedByResponseIssueDetails {
+      request: AffectedRequest;
+      parentFrame?: AffectedFrame;
+      blockedFrame?: AffectedFrame;
+      reason: BlockedByResponseReason;
+    }
+    export type HeavyAdResolutionStatus = "HeavyAdBlocked"|"HeavyAdWarning";
+    export type HeavyAdReason = "NetworkTotalLimit"|"CpuTotalLimit"|"CpuPeakLimit";
+    export interface HeavyAdIssueDetails {
+      /**
+       * The resolution status, either blocking the content or warning.
+       */
+      resolution: HeavyAdResolutionStatus;
+      /**
+       * The reason the ad was blocked, total network or cpu or peak cpu.
+       */
+      reason: HeavyAdReason;
+      /**
+       * The frame that was blocked.
+       */
+      frame: AffectedFrame;
+    }
+    export type ContentSecurityPolicyViolationType = "kInlineViolation"|"kEvalViolation"|"kURLViolation"|"kTrustedTypesSinkViolation"|"kTrustedTypesPolicyViolation";
+    export interface SourceCodeLocation {
+      url: string;
+      lineNumber: number;
+      columnNumber: number;
+    }
+    export interface ContentSecurityPolicyIssueDetails {
+      /**
+       * The url not included in allowed sources.
+       */
+      blockedURL?: string;
+      /**
+       * Specific directive that is violated, causing the CSP issue.
+       */
+      violatedDirective: string;
+      isReportOnly: boolean;
+      contentSecurityPolicyViolationType: ContentSecurityPolicyViolationType;
+      frameAncestor?: AffectedFrame;
+      sourceCodeLocation?: SourceCodeLocation;
+      violatingNodeId?: DOM.BackendNodeId;
+    }
+    /**
+     * A unique identifier for the type of issue. Each type may use one of the
+optional fields in InspectorIssueDetails to convey more specific
+information about the kind of issue.
+     */
+    export type InspectorIssueCode = "SameSiteCookieIssue"|"MixedContentIssue"|"BlockedByResponseIssue"|"HeavyAdIssue"|"ContentSecurityPolicyIssue";
+    /**
+     * This struct holds a list of optional fields with additional information
+specific to the kind of issue. When adding a new issue code, please also
+add a new optional field to this type.
+     */
+    export interface InspectorIssueDetails {
+      sameSiteCookieIssueDetails?: SameSiteCookieIssueDetails;
+      mixedContentIssueDetails?: MixedContentIssueDetails;
+      blockedByResponseIssueDetails?: BlockedByResponseIssueDetails;
+      heavyAdIssueDetails?: HeavyAdIssueDetails;
+      contentSecurityPolicyIssueDetails?: ContentSecurityPolicyIssueDetails;
+    }
+    /**
+     * An inspector issue reported from the back-end.
+     */
+    export interface InspectorIssue {
+      code: InspectorIssueCode;
+      details: InspectorIssueDetails;
+    }
+    
+    export type issueAddedPayload = {
+      issue: InspectorIssue;
+    }
+    
+    /**
+     * Returns the response body and size if it were re-encoded with the specified settings. Only
+applies to images.
+     */
+    export type getEncodedResponseParameters = {
+      /**
+       * Identifier of the network request to get content for.
+       */
+      requestId: Network.RequestId;
+      /**
+       * The encoding to use.
+       */
+      encoding: "webp"|"jpeg"|"png";
+      /**
+       * The quality of the encoding (0-1). (defaults to 1)
+       */
+      quality?: number;
+      /**
+       * Whether to only return the size information (defaults to false).
+       */
+      sizeOnly?: boolean;
+    }
+    export type getEncodedResponseReturnValue = {
+      /**
+       * The encoded body as a base64 string. Omitted if sizeOnly is true.
+       */
+      body?: binary;
+      /**
+       * Size before re-encoding.
+       */
+      originalSize: number;
+      /**
+       * Size after re-encoding.
+       */
+      encodedSize: number;
+    }
+    /**
+     * Disables issues domain, prevents further issues from being reported to the client.
+     */
+    export type disableParameters = {
+    }
+    export type disableReturnValue = {
+    }
+    /**
+     * Enables issues domain, sends the issues collected so far to the client by means of the
+`issueAdded` event.
+     */
+    export type enableParameters = {
+    }
+    export type enableReturnValue = {
+    }
+  }
+  
+  /**
+   * Defines events for background web platform features.
+   */
+  export module BackgroundService {
+    /**
+     * The Background Service that will be associated with the commands/events.
+Every Background Service operates independently, but they share the same
+API.
+     */
+    export type ServiceName = "backgroundFetch"|"backgroundSync"|"pushMessaging"|"notifications"|"paymentHandler"|"periodicBackgroundSync";
+    /**
+     * A key-value pair for additional event information to pass along.
+     */
+    export interface EventMetadata {
+      key: string;
+      value: string;
+    }
+    export interface BackgroundServiceEvent {
+      /**
+       * Timestamp of the event (in seconds).
+       */
+      timestamp: Network.TimeSinceEpoch;
+      /**
+       * The origin this event belongs to.
+       */
+      origin: string;
+      /**
+       * The Service Worker ID that initiated the event.
+       */
+      serviceWorkerRegistrationId: ServiceWorker.RegistrationID;
+      /**
+       * The Background Service this event belongs to.
+       */
+      service: ServiceName;
+      /**
+       * A description of the event.
+       */
+      eventName: string;
+      /**
+       * An identifier that groups related events together.
+       */
+      instanceId: string;
+      /**
+       * A list of event-specific information.
+       */
+      eventMetadata: EventMetadata[];
+    }
+    
+    /**
+     * Called when the recording state for the service has been updated.
+     */
+    export type recordingStateChangedPayload = {
+      isRecording: boolean;
+      service: ServiceName;
+    }
+    /**
+     * Called with all existing backgroundServiceEvents when enabled, and all new
+events afterwards if enabled and recording.
+     */
+    export type backgroundServiceEventReceivedPayload = {
+      backgroundServiceEvent: BackgroundServiceEvent;
+    }
+    
+    /**
+     * Enables event updates for the service.
+     */
+    export type startObservingParameters = {
+      service: ServiceName;
+    }
+    export type startObservingReturnValue = {
+    }
+    /**
+     * Disables event updates for the service.
+     */
+    export type stopObservingParameters = {
+      service: ServiceName;
+    }
+    export type stopObservingReturnValue = {
+    }
+    /**
+     * Set the recording state for the service.
+     */
+    export type setRecordingParameters = {
+      shouldRecord: boolean;
+      service: ServiceName;
+    }
+    export type setRecordingReturnValue = {
+    }
+    /**
+     * Clears all stored data for the service.
+     */
+    export type clearEventsParameters = {
+      service: ServiceName;
+    }
+    export type clearEventsReturnValue = {
+    }
+  }
+  
+  /**
+   * The Browser domain defines methods and events for browser managing.
+   */
+  export module Browser {
+    export type BrowserContextID = string;
+    export type WindowID = number;
+    /**
+     * The state of the browser window.
+     */
+    export type WindowState = "normal"|"minimized"|"maximized"|"fullscreen";
+    /**
+     * Browser window bounds information
+     */
+    export interface Bounds {
+      /**
+       * The offset from the left edge of the screen to the window in pixels.
+       */
+      left?: number;
+      /**
+       * The offset from the top edge of the screen to the window in pixels.
+       */
+      top?: number;
+      /**
+       * The window width in pixels.
+       */
+      width?: number;
+      /**
+       * The window height in pixels.
+       */
+      height?: number;
+      /**
+       * The window state. Default to normal.
+       */
+      windowState?: WindowState;
+    }
+    export type PermissionType = "accessibilityEvents"|"audioCapture"|"backgroundSync"|"backgroundFetch"|"clipboardReadWrite"|"clipboardSanitizedWrite"|"durableStorage"|"flash"|"geolocation"|"midi"|"midiSysex"|"nfc"|"notifications"|"paymentHandler"|"periodicBackgroundSync"|"protectedMediaIdentifier"|"sensors"|"videoCapture"|"videoCapturePanTiltZoom"|"idleDetection"|"wakeLockScreen"|"wakeLockSystem";
+    export type PermissionSetting = "granted"|"denied"|"prompt";
+    /**
+     * Definition of PermissionDescriptor defined in the Permissions API:
+https://w3c.github.io/permissions/#dictdef-permissiondescriptor.
+     */
+    export interface PermissionDescriptor {
+      /**
+       * Name of permission.
+See https://cs.chromium.org/chromium/src/third_party/blink/renderer/modules/permissions/permission_descriptor.idl for valid permission names.
+       */
+      name: string;
+      /**
+       * For "midi" permission, may also specify sysex control.
+       */
+      sysex?: boolean;
+      /**
+       * For "push" permission, may specify userVisibleOnly.
+Note that userVisibleOnly = true is the only currently supported type.
+       */
+      userVisibleOnly?: boolean;
+      /**
+       * For "clipboard" permission, may specify allowWithoutSanitization.
+       */
+      allowWithoutSanitization?: boolean;
+      /**
+       * For "camera" permission, may specify panTiltZoom.
+       */
+      panTiltZoom?: boolean;
+    }
+    /**
+     * Browser command ids used by executeBrowserCommand.
+     */
+    export type BrowserCommandId = "openTabSearch"|"closeTabSearch";
+    /**
+     * Chrome histogram bucket.
+     */
+    export interface Bucket {
+      /**
+       * Minimum value (inclusive).
+       */
+      low: number;
+      /**
+       * Maximum value (exclusive).
+       */
+      high: number;
+      /**
+       * Number of samples.
+       */
+      count: number;
+    }
+    /**
+     * Chrome histogram.
+     */
+    export interface Histogram {
+      /**
+       * Name.
+       */
+      name: string;
+      /**
+       * Sum of sample values.
+       */
+      sum: number;
+      /**
+       * Total number of samples.
+       */
+      count: number;
+      /**
+       * Buckets.
+       */
+      buckets: Bucket[];
+    }
+    
+    
+    /**
+     * Set permission settings for given origin.
+     */
+    export type setPermissionParameters = {
+      /**
+       * Descriptor of permission to override.
+       */
+      permission: PermissionDescriptor;
+      /**
+       * Setting of the permission.
+       */
+      setting: PermissionSetting;
+      /**
+       * Origin the permission applies to, all origins if not specified.
+       */
+      origin?: string;
+      /**
+       * Context to override. When omitted, default browser context is used.
+       */
+      browserContextId?: BrowserContextID;
+    }
+    export type setPermissionReturnValue = {
+    }
+    /**
+     * Grant specific permissions to the given origin and reject all others.
+     */
+    export type grantPermissionsParameters = {
+      permissions: PermissionType[];
+      /**
+       * Origin the permission applies to, all origins if not specified.
+       */
+      origin?: string;
+      /**
+       * BrowserContext to override permissions. When omitted, default browser context is used.
+       */
+      browserContextId?: BrowserContextID;
+    }
+    export type grantPermissionsReturnValue = {
+    }
+    /**
+     * Reset all permission management for all origins.
+     */
+    export type resetPermissionsParameters = {
+      /**
+       * BrowserContext to reset permissions. When omitted, default browser context is used.
+       */
+      browserContextId?: BrowserContextID;
+    }
+    export type resetPermissionsReturnValue = {
+    }
+    /**
+     * Set the behavior when downloading a file.
+     */
+    export type setDownloadBehaviorParameters = {
+      /**
+       * Whether to allow all or deny all download requests, or use default Chrome behavior if
+available (otherwise deny). |allowAndName| allows download and names files according to
+their dowmload guids.
+       */
+      behavior: "deny"|"allow"|"allowAndName"|"default";
+      /**
+       * BrowserContext to set download behavior. When omitted, default browser context is used.
+       */
+      browserContextId?: BrowserContextID;
+      /**
+       * The default path to save downloaded files to. This is requred if behavior is set to 'allow'
+or 'allowAndName'.
+       */
+      downloadPath?: string;
+    }
+    export type setDownloadBehaviorReturnValue = {
+    }
+    /**
+     * Close browser gracefully.
+     */
+    export type closeParameters = {
+    }
+    export type closeReturnValue = {
+    }
+    /**
+     * Crashes browser on the main thread.
+     */
+    export type crashParameters = {
+    }
+    export type crashReturnValue = {
+    }
+    /**
+     * Crashes GPU process.
+     */
+    export type crashGpuProcessParameters = {
+    }
+    export type crashGpuProcessReturnValue = {
+    }
+    /**
+     * Returns version information.
+     */
+    export type getVersionParameters = {
+    }
+    export type getVersionReturnValue = {
+      /**
+       * Protocol version.
+       */
+      protocolVersion: string;
+      /**
+       * Product name.
+       */
+      product: string;
+      /**
+       * Product revision.
+       */
+      revision: string;
+      /**
+       * User-Agent.
+       */
+      userAgent: string;
+      /**
+       * V8 version.
+       */
+      jsVersion: string;
+    }
+    /**
+     * Returns the command line switches for the browser process if, and only if
+--enable-automation is on the commandline.
+     */
+    export type getBrowserCommandLineParameters = {
+    }
+    export type getBrowserCommandLineReturnValue = {
+      /**
+       * Commandline parameters
+       */
+      arguments: string[];
+    }
+    /**
+     * Get Chrome histograms.
+     */
+    export type getHistogramsParameters = {
+      /**
+       * Requested substring in name. Only histograms which have query as a
+substring in their name are extracted. An empty or absent query returns
+all histograms.
+       */
+      query?: string;
+      /**
+       * If true, retrieve delta since last call.
+       */
+      delta?: boolean;
+    }
+    export type getHistogramsReturnValue = {
+      /**
+       * Histograms.
+       */
+      histograms: Histogram[];
+    }
+    /**
+     * Get a Chrome histogram by name.
+     */
+    export type getHistogramParameters = {
+      /**
+       * Requested histogram name.
+       */
+      name: string;
+      /**
+       * If true, retrieve delta since last call.
+       */
+      delta?: boolean;
+    }
+    export type getHistogramReturnValue = {
+      /**
+       * Histogram.
+       */
+      histogram: Histogram;
+    }
+    /**
+     * Get position and size of the browser window.
+     */
+    export type getWindowBoundsParameters = {
+      /**
+       * Browser window id.
+       */
+      windowId: WindowID;
+    }
+    export type getWindowBoundsReturnValue = {
+      /**
+       * Bounds information of the window. When window state is 'minimized', the restored window
+position and size are returned.
+       */
+      bounds: Bounds;
+    }
+    /**
+     * Get the browser window that contains the devtools target.
+     */
+    export type getWindowForTargetParameters = {
+      /**
+       * Devtools agent host id. If called as a part of the session, associated targetId is used.
+       */
+      targetId?: Target.TargetID;
+    }
+    export type getWindowForTargetReturnValue = {
+      /**
+       * Browser window id.
+       */
+      windowId: WindowID;
+      /**
+       * Bounds information of the window. When window state is 'minimized', the restored window
+position and size are returned.
+       */
+      bounds: Bounds;
+    }
+    /**
+     * Set position and/or size of the browser window.
+     */
+    export type setWindowBoundsParameters = {
+      /**
+       * Browser window id.
+       */
+      windowId: WindowID;
+      /**
+       * New window bounds. The 'minimized', 'maximized' and 'fullscreen' states cannot be combined
+with 'left', 'top', 'width' or 'height'. Leaves unspecified fields unchanged.
+       */
+      bounds: Bounds;
+    }
+    export type setWindowBoundsReturnValue = {
+    }
+    /**
+     * Set dock tile details, platform-specific.
+     */
+    export type setDockTileParameters = {
+      badgeLabel?: string;
+      /**
+       * Png encoded image.
+       */
+      image?: binary;
+    }
+    export type setDockTileReturnValue = {
+    }
+    /**
+     * Invoke custom browser commands used by telemetry.
+     */
+    export type executeBrowserCommandParameters = {
+      commandId: BrowserCommandId;
+    }
+    export type executeBrowserCommandReturnValue = {
+    }
+  }
+  
+  /**
+   * This domain exposes CSS read/write operations. All CSS objects (stylesheets, rules, and styles)
+have an associated `id` used in subsequent operations on the related object. Each object type has
+a specific `id` structure, and those are not interchangeable between objects of different kinds.
+CSS objects can be loaded using the `get*ForNode()` calls (which accept a DOM node id). A client
+can also keep track of stylesheets via the `styleSheetAdded`/`styleSheetRemoved` events and
+subsequently load the required stylesheet contents using the `getStyleSheet[Text]()` methods.
+   */
+  export module CSS {
+    export type StyleSheetId = string;
+    /**
+     * Stylesheet type: "injected" for stylesheets injected via extension, "user-agent" for user-agent
+stylesheets, "inspector" for stylesheets created by the inspector (i.e. those holding the "via
+inspector" rules), "regular" for regular stylesheets.
+     */
+    export type StyleSheetOrigin = "injected"|"user-agent"|"inspector"|"regular";
+    /**
+     * CSS rule collection for a single pseudo style.
+     */
+    export interface PseudoElementMatches {
+      /**
+       * Pseudo element type.
+       */
+      pseudoType: DOM.PseudoType;
+      /**
+       * Matches of CSS rules applicable to the pseudo style.
+       */
+      matches: RuleMatch[];
+    }
+    /**
+     * Inherited CSS rule collection from ancestor node.
+     */
+    export interface InheritedStyleEntry {
+      /**
+       * The ancestor node's inline style, if any, in the style inheritance chain.
+       */
+      inlineStyle?: CSSStyle;
+      /**
+       * Matches of CSS rules matching the ancestor node in the style inheritance chain.
+       */
+      matchedCSSRules: RuleMatch[];
+    }
+    /**
+     * Match data for a CSS rule.
+     */
+    export interface RuleMatch {
+      /**
+       * CSS rule in the match.
+       */
+      rule: CSSRule;
+      /**
+       * Matching selector indices in the rule's selectorList selectors (0-based).
+       */
+      matchingSelectors: number[];
+    }
+    /**
+     * Data for a simple selector (these are delimited by commas in a selector list).
+     */
+    export interface Value {
+      /**
+       * Value text.
+       */
+      text: string;
+      /**
+       * Value range in the underlying resource (if available).
+       */
+      range?: SourceRange;
+    }
+    /**
+     * Selector list data.
+     */
+    export interface SelectorList {
+      /**
+       * Selectors in the list.
+       */
+      selectors: Value[];
+      /**
+       * Rule selector text.
+       */
+      text: string;
+    }
+    /**
+     * CSS stylesheet metainformation.
+     */
+    export interface CSSStyleSheetHeader {
+      /**
+       * The stylesheet identifier.
+       */
+      styleSheetId: StyleSheetId;
+      /**
+       * Owner frame identifier.
+       */
+      frameId: Page.FrameId;
+      /**
+       * Stylesheet resource URL.
+       */
+      sourceURL: string;
+      /**
+       * URL of source map associated with the stylesheet (if any).
+       */
+      sourceMapURL?: string;
+      /**
+       * Stylesheet origin.
+       */
+      origin: StyleSheetOrigin;
+      /**
+       * Stylesheet title.
+       */
+      title: string;
+      /**
+       * The backend id for the owner node of the stylesheet.
+       */
+      ownerNode?: DOM.BackendNodeId;
+      /**
+       * Denotes whether the stylesheet is disabled.
+       */
+      disabled: boolean;
+      /**
+       * Whether the sourceURL field value comes from the sourceURL comment.
+       */
+      hasSourceURL?: boolean;
+      /**
+       * Whether this stylesheet is created for STYLE tag by parser. This flag is not set for
+document.written STYLE tags.
+       */
+      isInline: boolean;
+      /**
+       * Whether this stylesheet is mutable. Inline stylesheets become mutable
+after they have been modified via CSSOM API.
+<link> element's stylesheets become mutable only if DevTools modifies them.
+Constructed stylesheets (new CSSStyleSheet()) are mutable immediately after creation.
+       */
+      isMutable: boolean;
+      /**
+       * Whether this stylesheet is a constructed stylesheet (created using new CSSStyleSheet()).
+       */
+      isConstructed: boolean;
+      /**
+       * Line offset of the stylesheet within the resource (zero based).
+       */
+      startLine: number;
+      /**
+       * Column offset of the stylesheet within the resource (zero based).
+       */
+      startColumn: number;
+      /**
+       * Size of the content (in characters).
+       */
+      length: number;
+      /**
+       * Line offset of the end of the stylesheet within the resource (zero based).
+       */
+      endLine: number;
+      /**
+       * Column offset of the end of the stylesheet within the resource (zero based).
+       */
+      endColumn: number;
+    }
+    /**
+     * CSS rule representation.
+     */
+    export interface CSSRule {
+      /**
+       * The css style sheet identifier (absent for user agent stylesheet and user-specified
+stylesheet rules) this rule came from.
+       */
+      styleSheetId?: StyleSheetId;
+      /**
+       * Rule selector data.
+       */
+      selectorList: SelectorList;
+      /**
+       * Parent stylesheet's origin.
+       */
+      origin: StyleSheetOrigin;
+      /**
+       * Associated style declaration.
+       */
+      style: CSSStyle;
+      /**
+       * Media list array (for rules involving media queries). The array enumerates media queries
+starting with the innermost one, going outwards.
+       */
+      media?: CSSMedia[];
+    }
+    /**
+     * CSS coverage information.
+     */
+    export interface RuleUsage {
+      /**
+       * The css style sheet identifier (absent for user agent stylesheet and user-specified
+stylesheet rules) this rule came from.
+       */
+      styleSheetId: StyleSheetId;
+      /**
+       * Offset of the start of the rule (including selector) from the beginning of the stylesheet.
+       */
+      startOffset: number;
+      /**
+       * Offset of the end of the rule body from the beginning of the stylesheet.
+       */
+      endOffset: number;
+      /**
+       * Indicates whether the rule was actually used by some element in the page.
+       */
+      used: boolean;
+    }
+    /**
+     * Text range within a resource. All numbers are zero-based.
+     */
+    export interface SourceRange {
+      /**
+       * Start line of range.
+       */
+      startLine: number;
+      /**
+       * Start column of range (inclusive).
+       */
+      startColumn: number;
+      /**
+       * End line of range
+       */
+      endLine: number;
+      /**
+       * End column of range (exclusive).
+       */
+      endColumn: number;
+    }
+    export interface ShorthandEntry {
+      /**
+       * Shorthand name.
+       */
+      name: string;
+      /**
+       * Shorthand value.
+       */
+      value: string;
+      /**
+       * Whether the property has "!important" annotation (implies `false` if absent).
+       */
+      important?: boolean;
+    }
+    export interface CSSComputedStyleProperty {
+      /**
+       * Computed style property name.
+       */
+      name: string;
+      /**
+       * Computed style property value.
+       */
+      value: string;
+    }
+    /**
+     * CSS style representation.
+     */
+    export interface CSSStyle {
+      /**
+       * The css style sheet identifier (absent for user agent stylesheet and user-specified
+stylesheet rules) this rule came from.
+       */
+      styleSheetId?: StyleSheetId;
+      /**
+       * CSS properties in the style.
+       */
+      cssProperties: CSSProperty[];
+      /**
+       * Computed values for all shorthands found in the style.
+       */
+      shorthandEntries: ShorthandEntry[];
+      /**
+       * Style declaration text (if available).
+       */
+      cssText?: string;
+      /**
+       * Style declaration range in the enclosing stylesheet (if available).
+       */
+      range?: SourceRange;
+    }
+    /**
+     * CSS property declaration data.
+     */
+    export interface CSSProperty {
+      /**
+       * The property name.
+       */
+      name: string;
+      /**
+       * The property value.
+       */
+      value: string;
+      /**
+       * Whether the property has "!important" annotation (implies `false` if absent).
+       */
+      important?: boolean;
+      /**
+       * Whether the property is implicit (implies `false` if absent).
+       */
+      implicit?: boolean;
+      /**
+       * The full property text as specified in the style.
+       */
+      text?: string;
+      /**
+       * Whether the property is understood by the browser (implies `true` if absent).
+       */
+      parsedOk?: boolean;
+      /**
+       * Whether the property is disabled by the user (present for source-based properties only).
+       */
+      disabled?: boolean;
+      /**
+       * The entire property range in the enclosing style declaration (if available).
+       */
+      range?: SourceRange;
+    }
+    /**
+     * CSS media rule descriptor.
+     */
+    export interface CSSMedia {
+      /**
+       * Media query text.
+       */
+      text: string;
+      /**
+       * Source of the media query: "mediaRule" if specified by a @media rule, "importRule" if
+specified by an @import rule, "linkedSheet" if specified by a "media" attribute in a linked
+stylesheet's LINK tag, "inlineSheet" if specified by a "media" attribute in an inline
+stylesheet's STYLE tag.
+       */
+      source: "mediaRule"|"importRule"|"linkedSheet"|"inlineSheet";
+      /**
+       * URL of the document containing the media query description.
+       */
+      sourceURL?: string;
+      /**
+       * The associated rule (@media or @import) header range in the enclosing stylesheet (if
+available).
+       */
+      range?: SourceRange;
+      /**
+       * Identifier of the stylesheet containing this object (if exists).
+       */
+      styleSheetId?: StyleSheetId;
+      /**
+       * Array of media queries.
+       */
+      mediaList?: MediaQuery[];
+    }
+    /**
+     * Media query descriptor.
+     */
+    export interface MediaQuery {
+      /**
+       * Array of media query expressions.
+       */
+      expressions: MediaQueryExpression[];
+      /**
+       * Whether the media query condition is satisfied.
+       */
+      active: boolean;
+    }
+    /**
+     * Media query expression descriptor.
+     */
+    export interface MediaQueryExpression {
+      /**
+       * Media query expression value.
+       */
+      value: number;
+      /**
+       * Media query expression units.
+       */
+      unit: string;
+      /**
+       * Media query expression feature.
+       */
+      feature: string;
+      /**
+       * The associated range of the value text in the enclosing stylesheet (if available).
+       */
+      valueRange?: SourceRange;
+      /**
+       * Computed length of media query expression (if applicable).
+       */
+      computedLength?: number;
+    }
+    /**
+     * Information about amount of glyphs that were rendered with given font.
+     */
+    export interface PlatformFontUsage {
+      /**
+       * Font's family name reported by platform.
+       */
+      familyName: string;
+      /**
+       * Indicates if the font was downloaded or resolved locally.
+       */
+      isCustomFont: boolean;
+      /**
+       * Amount of glyphs that were rendered with this font.
+       */
+      glyphCount: number;
+    }
+    /**
+     * Information about font variation axes for variable fonts
+     */
+    export interface FontVariationAxis {
+      /**
+       * The font-variation-setting tag (a.k.a. "axis tag").
+       */
+      tag: string;
+      /**
+       * Human-readable variation name in the default language (normally, "en").
+       */
+      name: string;
+      /**
+       * The minimum value (inclusive) the font supports for this tag.
+       */
+      minValue: number;
+      /**
+       * The maximum value (inclusive) the font supports for this tag.
+       */
+      maxValue: number;
+      /**
+       * The default value.
+       */
+      defaultValue: number;
+    }
+    /**
+     * Properties of a web font: https://www.w3.org/TR/2008/REC-CSS2-20080411/fonts.html#font-descriptions
+and additional information such as platformFontFamily and fontVariationAxes.
+     */
+    export interface FontFace {
+      /**
+       * The font-family.
+       */
+      fontFamily: string;
+      /**
+       * The font-style.
+       */
+      fontStyle: string;
+      /**
+       * The font-variant.
+       */
+      fontVariant: string;
+      /**
+       * The font-weight.
+       */
+      fontWeight: string;
+      /**
+       * The font-stretch.
+       */
+      fontStretch: string;
+      /**
+       * The unicode-range.
+       */
+      unicodeRange: string;
+      /**
+       * The src.
+       */
+      src: string;
+      /**
+       * The resolved platform font family
+       */
+      platformFontFamily: string;
+      /**
+       * Available variation settings (a.k.a. "axes").
+       */
+      fontVariationAxes?: FontVariationAxis[];
+    }
+    /**
+     * CSS keyframes rule representation.
+     */
+    export interface CSSKeyframesRule {
+      /**
+       * Animation name.
+       */
+      animationName: Value;
+      /**
+       * List of keyframes.
+       */
+      keyframes: CSSKeyframeRule[];
+    }
+    /**
+     * CSS keyframe rule representation.
+     */
+    export interface CSSKeyframeRule {
+      /**
+       * The css style sheet identifier (absent for user agent stylesheet and user-specified
+stylesheet rules) this rule came from.
+       */
+      styleSheetId?: StyleSheetId;
+      /**
+       * Parent stylesheet's origin.
+       */
+      origin: StyleSheetOrigin;
+      /**
+       * Associated key text.
+       */
+      keyText: Value;
+      /**
+       * Associated style declaration.
+       */
+      style: CSSStyle;
+    }
+    /**
+     * A descriptor of operation to mutate style declaration text.
+     */
+    export interface StyleDeclarationEdit {
+      /**
+       * The css style sheet identifier.
+       */
+      styleSheetId: StyleSheetId;
+      /**
+       * The range of the style text in the enclosing stylesheet.
+       */
+      range: SourceRange;
+      /**
+       * New style text.
+       */
+      text: string;
+    }
+    
+    /**
+     * Fires whenever a web font is updated.  A non-empty font parameter indicates a successfully loaded
+web font
+     */
+    export type fontsUpdatedPayload = {
+      /**
+       * The web font that has loaded.
+       */
+      font?: FontFace;
+    }
+    /**
+     * Fires whenever a MediaQuery result changes (for example, after a browser window has been
+resized.) The current implementation considers only viewport-dependent media features.
+     */
+    export type mediaQueryResultChangedPayload = void;
+    /**
+     * Fired whenever an active document stylesheet is added.
+     */
+    export type styleSheetAddedPayload = {
+      /**
+       * Added stylesheet metainfo.
+       */
+      header: CSSStyleSheetHeader;
+    }
+    /**
+     * Fired whenever a stylesheet is changed as a result of the client operation.
+     */
+    export type styleSheetChangedPayload = {
+      styleSheetId: StyleSheetId;
+    }
+    /**
+     * Fired whenever an active document stylesheet is removed.
+     */
+    export type styleSheetRemovedPayload = {
+      /**
+       * Identifier of the removed stylesheet.
+       */
+      styleSheetId: StyleSheetId;
+    }
+    
+    /**
+     * Inserts a new rule with the given `ruleText` in a stylesheet with given `styleSheetId`, at the
+position specified by `location`.
+     */
+    export type addRuleParameters = {
+      /**
+       * The css style sheet identifier where a new rule should be inserted.
+       */
+      styleSheetId: StyleSheetId;
+      /**
+       * The text of a new rule.
+       */
+      ruleText: string;
+      /**
+       * Text position of a new rule in the target style sheet.
+       */
+      location: SourceRange;
+    }
+    export type addRuleReturnValue = {
+      /**
+       * The newly created rule.
+       */
+      rule: CSSRule;
+    }
+    /**
+     * Returns all class names from specified stylesheet.
+     */
+    export type collectClassNamesParameters = {
+      styleSheetId: StyleSheetId;
+    }
+    export type collectClassNamesReturnValue = {
+      /**
+       * Class name list.
+       */
+      classNames: string[];
+    }
+    /**
+     * Creates a new special "via-inspector" stylesheet in the frame with given `frameId`.
+     */
+    export type createStyleSheetParameters = {
+      /**
+       * Identifier of the frame where "via-inspector" stylesheet should be created.
+       */
+      frameId: Page.FrameId;
+    }
+    export type createStyleSheetReturnValue = {
+      /**
+       * Identifier of the created "via-inspector" stylesheet.
+       */
+      styleSheetId: StyleSheetId;
+    }
+    /**
+     * Disables the CSS agent for the given page.
+     */
+    export type disableParameters = {
+    }
+    export type disableReturnValue = {
+    }
+    /**
+     * Enables the CSS agent for the given page. Clients should not assume that the CSS agent has been
+enabled until the result of this command is received.
+     */
+    export type enableParameters = {
+    }
+    export type enableReturnValue = {
+    }
+    /**
+     * Ensures that the given node will have specified pseudo-classes whenever its style is computed by
+the browser.
+     */
+    export type forcePseudoStateParameters = {
+      /**
+       * The element id for which to force the pseudo state.
+       */
+      nodeId: DOM.NodeId;
+      /**
+       * Element pseudo classes to force when computing the element's style.
+       */
+      forcedPseudoClasses: string[];
+    }
+    export type forcePseudoStateReturnValue = {
+    }
+    export type getBackgroundColorsParameters = {
+      /**
+       * Id of the node to get background colors for.
+       */
+      nodeId: DOM.NodeId;
+    }
+    export type getBackgroundColorsReturnValue = {
+      /**
+       * The range of background colors behind this element, if it contains any visible text. If no
+visible text is present, this will be undefined. In the case of a flat background color,
+this will consist of simply that color. In the case of a gradient, this will consist of each
+of the color stops. For anything more complicated, this will be an empty array. Images will
+be ignored (as if the image had failed to load).
+       */
+      backgroundColors?: string[];
+      /**
+       * The computed font size for this node, as a CSS computed value string (e.g. '12px').
+       */
+      computedFontSize?: string;
+      /**
+       * The computed font weight for this node, as a CSS computed value string (e.g. 'normal' or
+'100').
+       */
+      computedFontWeight?: string;
+    }
+    /**
+     * Returns the computed style for a DOM node identified by `nodeId`.
+     */
+    export type getComputedStyleForNodeParameters = {
+      nodeId: DOM.NodeId;
+    }
+    export type getComputedStyleForNodeReturnValue = {
+      /**
+       * Computed style for the specified DOM node.
+       */
+      computedStyle: CSSComputedStyleProperty[];
+    }
+    /**
+     * Returns the styles defined inline (explicitly in the "style" attribute and implicitly, using DOM
+attributes) for a DOM node identified by `nodeId`.
+     */
+    export type getInlineStylesForNodeParameters = {
+      nodeId: DOM.NodeId;
+    }
+    export type getInlineStylesForNodeReturnValue = {
+      /**
+       * Inline style for the specified DOM node.
+       */
+      inlineStyle?: CSSStyle;
+      /**
+       * Attribute-defined element style (e.g. resulting from "width=20 height=100%").
+       */
+      attributesStyle?: CSSStyle;
+    }
+    /**
+     * Returns requested styles for a DOM node identified by `nodeId`.
+     */
+    export type getMatchedStylesForNodeParameters = {
+      nodeId: DOM.NodeId;
+    }
+    export type getMatchedStylesForNodeReturnValue = {
+      /**
+       * Inline style for the specified DOM node.
+       */
+      inlineStyle?: CSSStyle;
+      /**
+       * Attribute-defined element style (e.g. resulting from "width=20 height=100%").
+       */
+      attributesStyle?: CSSStyle;
+      /**
+       * CSS rules matching this node, from all applicable stylesheets.
+       */
+      matchedCSSRules?: RuleMatch[];
+      /**
+       * Pseudo style matches for this node.
+       */
+      pseudoElements?: PseudoElementMatches[];
+      /**
+       * A chain of inherited styles (from the immediate node parent up to the DOM tree root).
+       */
+      inherited?: InheritedStyleEntry[];
+      /**
+       * A list of CSS keyframed animations matching this node.
+       */
+      cssKeyframesRules?: CSSKeyframesRule[];
+    }
+    /**
+     * Returns all media queries parsed by the rendering engine.
+     */
+    export type getMediaQueriesParameters = {
+    }
+    export type getMediaQueriesReturnValue = {
+      medias: CSSMedia[];
+    }
+    /**
+     * Requests information about platform fonts which we used to render child TextNodes in the given
+node.
+     */
+    export type getPlatformFontsForNodeParameters = {
+      nodeId: DOM.NodeId;
+    }
+    export type getPlatformFontsForNodeReturnValue = {
+      /**
+       * Usage statistics for every employed platform font.
+       */
+      fonts: PlatformFontUsage[];
+    }
+    /**
+     * Returns the current textual content for a stylesheet.
+     */
+    export type getStyleSheetTextParameters = {
+      styleSheetId: StyleSheetId;
+    }
+    export type getStyleSheetTextReturnValue = {
+      /**
+       * The stylesheet text.
+       */
+      text: string;
+    }
+    /**
+     * Starts tracking the given computed styles for updates. The specified array of properties
+replaces the one previously specified. Pass empty array to disable tracking.
+Use takeComputedStyleUpdates to retrieve the list of nodes that had properties modified.
+The changes to computed style properties are only tracked for nodes pushed to the front-end
+by the DOM agent. If no changes to the tracked properties occur after the node has been pushed
+to the front-end, no updates will be issued for the node.
+     */
+    export type trackComputedStyleUpdatesParameters = {
+      propertiesToTrack: CSSComputedStyleProperty[];
+    }
+    export type trackComputedStyleUpdatesReturnValue = {
+    }
+    /**
+     * Polls the next batch of computed style updates.
+     */
+    export type takeComputedStyleUpdatesParameters = {
+    }
+    export type takeComputedStyleUpdatesReturnValue = {
+      /**
+       * The list of node Ids that have their tracked computed styles updated
+       */
+      nodeIds: DOM.NodeId[];
+    }
+    /**
+     * Find a rule with the given active property for the given node and set the new value for this
+property
+     */
+    export type setEffectivePropertyValueForNodeParameters = {
+      /**
+       * The element id for which to set property.
+       */
+      nodeId: DOM.NodeId;
+      propertyName: string;
+      value: string;
+    }
+    export type setEffectivePropertyValueForNodeReturnValue = {
+    }
+    /**
+     * Modifies the keyframe rule key text.
+     */
+    export type setKeyframeKeyParameters = {
+      styleSheetId: StyleSheetId;
+      range: SourceRange;
+      keyText: string;
+    }
+    export type setKeyframeKeyReturnValue = {
+      /**
+       * The resulting key text after modification.
+       */
+      keyText: Value;
+    }
+    /**
+     * Modifies the rule selector.
+     */
+    export type setMediaTextParameters = {
+      styleSheetId: StyleSheetId;
+      range: SourceRange;
+      text: string;
+    }
+    export type setMediaTextReturnValue = {
+      /**
+       * The resulting CSS media rule after modification.
+       */
+      media: CSSMedia;
+    }
+    /**
+     * Modifies the rule selector.
+     */
+    export type setRuleSelectorParameters = {
+      styleSheetId: StyleSheetId;
+      range: SourceRange;
+      selector: string;
+    }
+    export type setRuleSelectorReturnValue = {
+      /**
+       * The resulting selector list after modification.
+       */
+      selectorList: SelectorList;
+    }
+    /**
+     * Sets the new stylesheet text.
+     */
+    export type setStyleSheetTextParameters = {
+      styleSheetId: StyleSheetId;
+      text: string;
+    }
+    export type setStyleSheetTextReturnValue = {
+      /**
+       * URL of source map associated with script (if any).
+       */
+      sourceMapURL?: string;
+    }
+    /**
+     * Applies specified style edits one after another in the given order.
+     */
+    export type setStyleTextsParameters = {
+      edits: StyleDeclarationEdit[];
+    }
+    export type setStyleTextsReturnValue = {
+      /**
+       * The resulting styles after modification.
+       */
+      styles: CSSStyle[];
+    }
+    /**
+     * Enables the selector recording.
+     */
+    export type startRuleUsageTrackingParameters = {
+    }
+    export type startRuleUsageTrackingReturnValue = {
+    }
+    /**
+     * Stop tracking rule usage and return the list of rules that were used since last call to
+`takeCoverageDelta` (or since start of coverage instrumentation)
+     */
+    export type stopRuleUsageTrackingParameters = {
+    }
+    export type stopRuleUsageTrackingReturnValue = {
+      ruleUsage: RuleUsage[];
+    }
+    /**
+     * Obtain list of rules that became used since last call to this method (or since start of coverage
+instrumentation)
+     */
+    export type takeCoverageDeltaParameters = {
+    }
+    export type takeCoverageDeltaReturnValue = {
+      coverage: RuleUsage[];
+      /**
+       * Monotonically increasing time, in seconds.
+       */
+      timestamp: number;
+    }
+    /**
+     * Enables/disables rendering of local CSS fonts (enabled by default).
+     */
+    export type setLocalFontsEnabledParameters = {
+      /**
+       * Whether rendering of local fonts is enabled.
+       */
+      enabled: boolean;
+    }
+    export type setLocalFontsEnabledReturnValue = {
+    }
+  }
+  
+  export module CacheStorage {
+    /**
+     * Unique identifier of the Cache object.
+     */
+    export type CacheId = string;
+    /**
+     * type of HTTP response cached
+     */
+    export type CachedResponseType = "basic"|"cors"|"default"|"error"|"opaqueResponse"|"opaqueRedirect";
+    /**
+     * Data entry.
+     */
+    export interface DataEntry {
+      /**
+       * Request URL.
+       */
+      requestURL: string;
+      /**
+       * Request method.
+       */
+      requestMethod: string;
+      /**
+       * Request headers
+       */
+      requestHeaders: Header[];
+      /**
+       * Number of seconds since epoch.
+       */
+      responseTime: number;
+      /**
+       * HTTP response status code.
+       */
+      responseStatus: number;
+      /**
+       * HTTP response status text.
+       */
+      responseStatusText: string;
+      /**
+       * HTTP response type
+       */
+      responseType: CachedResponseType;
+      /**
+       * Response headers
+       */
+      responseHeaders: Header[];
+    }
+    /**
+     * Cache identifier.
+     */
+    export interface Cache {
+      /**
+       * An opaque unique id of the cache.
+       */
+      cacheId: CacheId;
+      /**
+       * Security origin of the cache.
+       */
+      securityOrigin: string;
+      /**
+       * The name of the cache.
+       */
+      cacheName: string;
+    }
+    export interface Header {
+      name: string;
+      value: string;
+    }
+    /**
+     * Cached response
+     */
+    export interface CachedResponse {
+      /**
+       * Entry content, base64-encoded.
+       */
+      body: binary;
+    }
+    
+    
+    /**
+     * Deletes a cache.
+     */
+    export type deleteCacheParameters = {
+      /**
+       * Id of cache for deletion.
+       */
+      cacheId: CacheId;
+    }
+    export type deleteCacheReturnValue = {
+    }
+    /**
+     * Deletes a cache entry.
+     */
+    export type deleteEntryParameters = {
+      /**
+       * Id of cache where the entry will be deleted.
+       */
+      cacheId: CacheId;
+      /**
+       * URL spec of the request.
+       */
+      request: string;
+    }
+    export type deleteEntryReturnValue = {
+    }
+    /**
+     * Requests cache names.
+     */
+    export type requestCacheNamesParameters = {
+      /**
+       * Security origin.
+       */
+      securityOrigin: string;
+    }
+    export type requestCacheNamesReturnValue = {
+      /**
+       * Caches for the security origin.
+       */
+      caches: Cache[];
+    }
+    /**
+     * Fetches cache entry.
+     */
+    export type requestCachedResponseParameters = {
+      /**
+       * Id of cache that contains the entry.
+       */
+      cacheId: CacheId;
+      /**
+       * URL spec of the request.
+       */
+      requestURL: string;
+      /**
+       * headers of the request.
+       */
+      requestHeaders: Header[];
+    }
+    export type requestCachedResponseReturnValue = {
+      /**
+       * Response read from the cache.
+       */
+      response: CachedResponse;
+    }
+    /**
+     * Requests data from cache.
+     */
+    export type requestEntriesParameters = {
+      /**
+       * ID of cache to get entries from.
+       */
+      cacheId: CacheId;
+      /**
+       * Number of records to skip.
+       */
+      skipCount?: number;
+      /**
+       * Number of records to fetch.
+       */
+      pageSize?: number;
+      /**
+       * If present, only return the entries containing this substring in the path
+       */
+      pathFilter?: string;
+    }
+    export type requestEntriesReturnValue = {
+      /**
+       * Array of object store data entries.
+       */
+      cacheDataEntries: DataEntry[];
+      /**
+       * Count of returned entries from this storage. If pathFilter is empty, it
+is the count of all entries from this storage.
+       */
+      returnCount: number;
+    }
+  }
+  
+  /**
+   * A domain for interacting with Cast, Presentation API, and Remote Playback API
+functionalities.
+   */
+  export module Cast {
+    export interface Sink {
+      name: string;
+      id: string;
+      /**
+       * Text describing the current session. Present only if there is an active
+session on the sink.
+       */
+      session?: string;
+    }
+    
+    /**
+     * This is fired whenever the list of available sinks changes. A sink is a
+device or a software surface that you can cast to.
+     */
+    export type sinksUpdatedPayload = {
+      sinks: Sink[];
+    }
+    /**
+     * This is fired whenever the outstanding issue/error message changes.
+|issueMessage| is empty if there is no issue.
+     */
+    export type issueUpdatedPayload = {
+      issueMessage: string;
+    }
+    
+    /**
+     * Starts observing for sinks that can be used for tab mirroring, and if set,
+sinks compatible with |presentationUrl| as well. When sinks are found, a
+|sinksUpdated| event is fired.
+Also starts observing for issue messages. When an issue is added or removed,
+an |issueUpdated| event is fired.
+     */
+    export type enableParameters = {
+      presentationUrl?: string;
+    }
+    export type enableReturnValue = {
+    }
+    /**
+     * Stops observing for sinks and issues.
+     */
+    export type disableParameters = {
+    }
+    export type disableReturnValue = {
+    }
+    /**
+     * Sets a sink to be used when the web page requests the browser to choose a
+sink via Presentation API, Remote Playback API, or Cast SDK.
+     */
+    export type setSinkToUseParameters = {
+      sinkName: string;
+    }
+    export type setSinkToUseReturnValue = {
+    }
+    /**
+     * Starts mirroring the tab to the sink.
+     */
+    export type startTabMirroringParameters = {
+      sinkName: string;
+    }
+    export type startTabMirroringReturnValue = {
+    }
+    /**
+     * Stops the active Cast session on the sink.
+     */
+    export type stopCastingParameters = {
+      sinkName: string;
+    }
+    export type stopCastingReturnValue = {
+    }
+  }
+  
+  /**
+   * This domain exposes DOM read/write operations. Each DOM Node is represented with its mirror object
+that has an `id`. This `id` can be used to get additional information on the Node, resolve it into
+the JavaScript object wrapper, etc. It is important that client receives DOM events only for the
+nodes that are known to the client. Backend keeps track of the nodes that were sent to the client
+and never sends the same node twice. It is client's responsibility to collect information about
+the nodes that were sent to the client.<p>Note that `iframe` owner elements will return
+corresponding document elements as their child nodes.</p>
+   */
+  export module DOM {
+    /**
+     * Unique DOM node identifier.
+     */
+    export type NodeId = number;
+    /**
+     * Unique DOM node identifier used to reference a node that may not have been pushed to the
+front-end.
+     */
+    export type BackendNodeId = number;
+    /**
+     * Backend node with a friendly name.
+     */
+    export interface BackendNode {
+      /**
+       * `Node`'s nodeType.
+       */
+      nodeType: number;
+      /**
+       * `Node`'s nodeName.
+       */
+      nodeName: string;
+      backendNodeId: BackendNodeId;
+    }
+    /**
+     * Pseudo element type.
+     */
+    export type PseudoType = "first-line"|"first-letter"|"before"|"after"|"marker"|"backdrop"|"selection"|"target-text"|"first-line-inherited"|"scrollbar"|"scrollbar-thumb"|"scrollbar-button"|"scrollbar-track"|"scrollbar-track-piece"|"scrollbar-corner"|"resizer"|"input-list-button";
+    /**
+     * Shadow root type.
+     */
+    export type ShadowRootType = "user-agent"|"open"|"closed";
+    /**
+     * DOM interaction is implemented in terms of mirror objects that represent the actual DOM nodes.
+DOMNode is a base node mirror type.
+     */
+    export interface Node {
+      /**
+       * Node identifier that is passed into the rest of the DOM messages as the `nodeId`. Backend
+will only push node with given `id` once. It is aware of all requested nodes and will only
+fire DOM events for nodes known to the client.
+       */
+      nodeId: NodeId;
+      /**
+       * The id of the parent node if any.
+       */
+      parentId?: NodeId;
+      /**
+       * The BackendNodeId for this node.
+       */
+      backendNodeId: BackendNodeId;
+      /**
+       * `Node`'s nodeType.
+       */
+      nodeType: number;
+      /**
+       * `Node`'s nodeName.
+       */
+      nodeName: string;
+      /**
+       * `Node`'s localName.
+       */
+      localName: string;
+      /**
+       * `Node`'s nodeValue.
+       */
+      nodeValue: string;
+      /**
+       * Child count for `Container` nodes.
+       */
+      childNodeCount?: number;
+      /**
+       * Child nodes of this node when requested with children.
+       */
+      children?: Node[];
+      /**
+       * Attributes of the `Element` node in the form of flat array `[name1, value1, name2, value2]`.
+       */
+      attributes?: string[];
+      /**
+       * Document URL that `Document` or `FrameOwner` node points to.
+       */
+      documentURL?: string;
+      /**
+       * Base URL that `Document` or `FrameOwner` node uses for URL completion.
+       */
+      baseURL?: string;
+      /**
+       * `DocumentType`'s publicId.
+       */
+      publicId?: string;
+      /**
+       * `DocumentType`'s systemId.
+       */
+      systemId?: string;
+      /**
+       * `DocumentType`'s internalSubset.
+       */
+      internalSubset?: string;
+      /**
+       * `Document`'s XML version in case of XML documents.
+       */
+      xmlVersion?: string;
+      /**
+       * `Attr`'s name.
+       */
+      name?: string;
+      /**
+       * `Attr`'s value.
+       */
+      value?: string;
+      /**
+       * Pseudo element type for this node.
+       */
+      pseudoType?: PseudoType;
+      /**
+       * Shadow root type.
+       */
+      shadowRootType?: ShadowRootType;
+      /**
+       * Frame ID for frame owner elements.
+       */
+      frameId?: Page.FrameId;
+      /**
+       * Content document for frame owner elements.
+       */
+      contentDocument?: Node;
+      /**
+       * Shadow root list for given element host.
+       */
+      shadowRoots?: Node[];
+      /**
+       * Content document fragment for template elements.
+       */
+      templateContent?: Node;
+      /**
+       * Pseudo elements associated with this node.
+       */
+      pseudoElements?: Node[];
+      /**
+       * Import document for the HTMLImport links.
+       */
+      importedDocument?: Node;
+      /**
+       * Distributed nodes for given insertion point.
+       */
+      distributedNodes?: BackendNode[];
+      /**
+       * Whether the node is SVG.
+       */
+      isSVG?: boolean;
+    }
+    /**
+     * A structure holding an RGBA color.
+     */
+    export interface RGBA {
+      /**
+       * The red component, in the [0-255] range.
+       */
+      r: number;
+      /**
+       * The green component, in the [0-255] range.
+       */
+      g: number;
+      /**
+       * The blue component, in the [0-255] range.
+       */
+      b: number;
+      /**
+       * The alpha component, in the [0-1] range (default: 1).
+       */
+      a?: number;
+    }
+    /**
+     * An array of quad vertices, x immediately followed by y for each point, points clock-wise.
+     */
+    export type Quad = number[];
+    /**
+     * Box model.
+     */
+    export interface BoxModel {
+      /**
+       * Content box
+       */
+      content: Quad;
+      /**
+       * Padding box
+       */
+      padding: Quad;
+      /**
+       * Border box
+       */
+      border: Quad;
+      /**
+       * Margin box
+       */
+      margin: Quad;
+      /**
+       * Node width
+       */
+      width: number;
+      /**
+       * Node height
+       */
+      height: number;
+      /**
+       * Shape outside coordinates
+       */
+      shapeOutside?: ShapeOutsideInfo;
+    }
+    /**
+     * CSS Shape Outside details.
+     */
+    export interface ShapeOutsideInfo {
+      /**
+       * Shape bounds
+       */
+      bounds: Quad;
+      /**
+       * Shape coordinate details
+       */
+      shape: any[];
+      /**
+       * Margin shape bounds
+       */
+      marginShape: any[];
+    }
+    /**
+     * Rectangle.
+     */
+    export interface Rect {
+      /**
+       * X coordinate
+       */
+      x: number;
+      /**
+       * Y coordinate
+       */
+      y: number;
+      /**
+       * Rectangle width
+       */
+      width: number;
+      /**
+       * Rectangle height
+       */
+      height: number;
+    }
+    export interface CSSComputedStyleProperty {
+      /**
+       * Computed style property name.
+       */
+      name: string;
+      /**
+       * Computed style property value.
+       */
+      value: string;
+    }
+    
+    /**
+     * Fired when `Element`'s attribute is modified.
+     */
+    export type attributeModifiedPayload = {
+      /**
+       * Id of the node that has changed.
+       */
+      nodeId: NodeId;
+      /**
+       * Attribute name.
+       */
+      name: string;
+      /**
+       * Attribute value.
+       */
+      value: string;
+    }
+    /**
+     * Fired when `Element`'s attribute is removed.
+     */
+    export type attributeRemovedPayload = {
+      /**
+       * Id of the node that has changed.
+       */
+      nodeId: NodeId;
+      /**
+       * A ttribute name.
+       */
+      name: string;
+    }
+    /**
+     * Mirrors `DOMCharacterDataModified` event.
+     */
+    export type characterDataModifiedPayload = {
+      /**
+       * Id of the node that has changed.
+       */
+      nodeId: NodeId;
+      /**
+       * New text value.
+       */
+      characterData: string;
+    }
+    /**
+     * Fired when `Container`'s child node count has changed.
+     */
+    export type childNodeCountUpdatedPayload = {
+      /**
+       * Id of the node that has changed.
+       */
+      nodeId: NodeId;
+      /**
+       * New node count.
+       */
+      childNodeCount: number;
+    }
+    /**
+     * Mirrors `DOMNodeInserted` event.
+     */
+    export type childNodeInsertedPayload = {
+      /**
+       * Id of the node that has changed.
+       */
+      parentNodeId: NodeId;
+      /**
+       * If of the previous siblint.
+       */
+      previousNodeId: NodeId;
+      /**
+       * Inserted node data.
+       */
+      node: Node;
+    }
+    /**
+     * Mirrors `DOMNodeRemoved` event.
+     */
+    export type childNodeRemovedPayload = {
+      /**
+       * Parent id.
+       */
+      parentNodeId: NodeId;
+      /**
+       * Id of the node that has been removed.
+       */
+      nodeId: NodeId;
+    }
+    /**
+     * Called when distrubution is changed.
+     */
+    export type distributedNodesUpdatedPayload = {
+      /**
+       * Insertion point where distrubuted nodes were updated.
+       */
+      insertionPointId: NodeId;
+      /**
+       * Distributed nodes for given insertion point.
+       */
+      distributedNodes: BackendNode[];
+    }
+    /**
+     * Fired when `Document` has been totally updated. Node ids are no longer valid.
+     */
+    export type documentUpdatedPayload = void;
+    /**
+     * Fired when `Element`'s inline style is modified via a CSS property modification.
+     */
+    export type inlineStyleInvalidatedPayload = {
+      /**
+       * Ids of the nodes for which the inline styles have been invalidated.
+       */
+      nodeIds: NodeId[];
+    }
+    /**
+     * Called when a pseudo element is added to an element.
+     */
+    export type pseudoElementAddedPayload = {
+      /**
+       * Pseudo element's parent element id.
+       */
+      parentId: NodeId;
+      /**
+       * The added pseudo element.
+       */
+      pseudoElement: Node;
+    }
+    /**
+     * Called when a pseudo element is removed from an element.
+     */
+    export type pseudoElementRemovedPayload = {
+      /**
+       * Pseudo element's parent element id.
+       */
+      parentId: NodeId;
+      /**
+       * The removed pseudo element id.
+       */
+      pseudoElementId: NodeId;
+    }
+    /**
+     * Fired when backend wants to provide client with the missing DOM structure. This happens upon
+most of the calls requesting node ids.
+     */
+    export type setChildNodesPayload = {
+      /**
+       * Parent node id to populate with children.
+       */
+      parentId: NodeId;
+      /**
+       * Child nodes array.
+       */
+      nodes: Node[];
+    }
+    /**
+     * Called when shadow root is popped from the element.
+     */
+    export type shadowRootPoppedPayload = {
+      /**
+       * Host element id.
+       */
+      hostId: NodeId;
+      /**
+       * Shadow root id.
+       */
+      rootId: NodeId;
+    }
+    /**
+     * Called when shadow root is pushed into the element.
+     */
+    export type shadowRootPushedPayload = {
+      /**
+       * Host element id.
+       */
+      hostId: NodeId;
+      /**
+       * Shadow root.
+       */
+      root: Node;
+    }
+    
+    /**
+     * Collects class names for the node with given id and all of it's child nodes.
+     */
+    export type collectClassNamesFromSubtreeParameters = {
+      /**
+       * Id of the node to collect class names.
+       */
+      nodeId: NodeId;
+    }
+    export type collectClassNamesFromSubtreeReturnValue = {
+      /**
+       * Class name list.
+       */
+      classNames: string[];
+    }
+    /**
+     * Creates a deep copy of the specified node and places it into the target container before the
+given anchor.
+     */
+    export type copyToParameters = {
+      /**
+       * Id of the node to copy.
+       */
+      nodeId: NodeId;
+      /**
+       * Id of the element to drop the copy into.
+       */
+      targetNodeId: NodeId;
+      /**
+       * Drop the copy before this node (if absent, the copy becomes the last child of
+`targetNodeId`).
+       */
+      insertBeforeNodeId?: NodeId;
+    }
+    export type copyToReturnValue = {
+      /**
+       * Id of the node clone.
+       */
+      nodeId: NodeId;
+    }
+    /**
+     * Describes node given its id, does not require domain to be enabled. Does not start tracking any
+objects, can be used for automation.
+     */
+    export type describeNodeParameters = {
+      /**
+       * Identifier of the node.
+       */
+      nodeId?: NodeId;
+      /**
+       * Identifier of the backend node.
+       */
+      backendNodeId?: BackendNodeId;
+      /**
+       * JavaScript object id of the node wrapper.
+       */
+      objectId?: Runtime.RemoteObjectId;
+      /**
+       * The maximum depth at which children should be retrieved, defaults to 1. Use -1 for the
+entire subtree or provide an integer larger than 0.
+       */
+      depth?: number;
+      /**
+       * Whether or not iframes and shadow roots should be traversed when returning the subtree
+(default is false).
+       */
+      pierce?: boolean;
+    }
+    export type describeNodeReturnValue = {
+      /**
+       * Node description.
+       */
+      node: Node;
+    }
+    /**
+     * Scrolls the specified rect of the given node into view if not already visible.
+Note: exactly one between nodeId, backendNodeId and objectId should be passed
+to identify the node.
+     */
+    export type scrollIntoViewIfNeededParameters = {
+      /**
+       * Identifier of the node.
+       */
+      nodeId?: NodeId;
+      /**
+       * Identifier of the backend node.
+       */
+      backendNodeId?: BackendNodeId;
+      /**
+       * JavaScript object id of the node wrapper.
+       */
+      objectId?: Runtime.RemoteObjectId;
+      /**
+       * The rect to be scrolled into view, relative to the node's border box, in CSS pixels.
+When omitted, center of the node will be used, similar to Element.scrollIntoView.
+       */
+      rect?: Rect;
+    }
+    export type scrollIntoViewIfNeededReturnValue = {
+    }
+    /**
+     * Disables DOM agent for the given page.
+     */
+    export type disableParameters = {
+    }
+    export type disableReturnValue = {
+    }
+    /**
+     * Discards search results from the session with the given id. `getSearchResults` should no longer
+be called for that search.
+     */
+    export type discardSearchResultsParameters = {
+      /**
+       * Unique search session identifier.
+       */
+      searchId: string;
+    }
+    export type discardSearchResultsReturnValue = {
+    }
+    /**
+     * Enables DOM agent for the given page.
+     */
+    export type enableParameters = {
+    }
+    export type enableReturnValue = {
+    }
+    /**
+     * Focuses the given element.
+     */
+    export type focusParameters = {
+      /**
+       * Identifier of the node.
+       */
+      nodeId?: NodeId;
+      /**
+       * Identifier of the backend node.
+       */
+      backendNodeId?: BackendNodeId;
+      /**
+       * JavaScript object id of the node wrapper.
+       */
+      objectId?: Runtime.RemoteObjectId;
+    }
+    export type focusReturnValue = {
+    }
+    /**
+     * Returns attributes for the specified node.
+     */
+    export type getAttributesParameters = {
+      /**
+       * Id of the node to retrieve attibutes for.
+       */
+      nodeId: NodeId;
+    }
+    export type getAttributesReturnValue = {
+      /**
+       * An interleaved array of node attribute names and values.
+       */
+      attributes: string[];
+    }
+    /**
+     * Returns boxes for the given node.
+     */
+    export type getBoxModelParameters = {
+      /**
+       * Identifier of the node.
+       */
+      nodeId?: NodeId;
+      /**
+       * Identifier of the backend node.
+       */
+      backendNodeId?: BackendNodeId;
+      /**
+       * JavaScript object id of the node wrapper.
+       */
+      objectId?: Runtime.RemoteObjectId;
+    }
+    export type getBoxModelReturnValue = {
+      /**
+       * Box model for the node.
+       */
+      model: BoxModel;
+    }
+    /**
+     * Returns quads that describe node position on the page. This method
+might return multiple quads for inline nodes.
+     */
+    export type getContentQuadsParameters = {
+      /**
+       * Identifier of the node.
+       */
+      nodeId?: NodeId;
+      /**
+       * Identifier of the backend node.
+       */
+      backendNodeId?: BackendNodeId;
+      /**
+       * JavaScript object id of the node wrapper.
+       */
+      objectId?: Runtime.RemoteObjectId;
+    }
+    export type getContentQuadsReturnValue = {
+      /**
+       * Quads that describe node layout relative to viewport.
+       */
+      quads: Quad[];
+    }
+    /**
+     * Returns the root DOM node (and optionally the subtree) to the caller.
+     */
+    export type getDocumentParameters = {
+      /**
+       * The maximum depth at which children should be retrieved, defaults to 1. Use -1 for the
+entire subtree or provide an integer larger than 0.
+       */
+      depth?: number;
+      /**
+       * Whether or not iframes and shadow roots should be traversed when returning the subtree
+(default is false).
+       */
+      pierce?: boolean;
+    }
+    export type getDocumentReturnValue = {
+      /**
+       * Resulting node.
+       */
+      root: Node;
+    }
+    /**
+     * Returns the root DOM node (and optionally the subtree) to the caller.
+Deprecated, as it is not designed to work well with the rest of the DOM agent.
+Use DOMSnapshot.captureSnapshot instead.
+     */
+    export type getFlattenedDocumentParameters = {
+      /**
+       * The maximum depth at which children should be retrieved, defaults to 1. Use -1 for the
+entire subtree or provide an integer larger than 0.
+       */
+      depth?: number;
+      /**
+       * Whether or not iframes and shadow roots should be traversed when returning the subtree
+(default is false).
+       */
+      pierce?: boolean;
+    }
+    export type getFlattenedDocumentReturnValue = {
+      /**
+       * Resulting node.
+       */
+      nodes: Node[];
+    }
+    /**
+     * Finds nodes with a given computed style in a subtree.
+     */
+    export type getNodesForSubtreeByStyleParameters = {
+      /**
+       * Node ID pointing to the root of a subtree.
+       */
+      nodeId: NodeId;
+      /**
+       * The style to filter nodes by (includes nodes if any of properties matches).
+       */
+      computedStyles: CSSComputedStyleProperty[];
+      /**
+       * Whether or not iframes and shadow roots in the same target should be traversed when returning the
+results (default is false).
+       */
+      pierce?: boolean;
+    }
+    export type getNodesForSubtreeByStyleReturnValue = {
+      /**
+       * Resulting nodes.
+       */
+      nodeIds: NodeId[];
+    }
+    /**
+     * Returns node id at given location. Depending on whether DOM domain is enabled, nodeId is
+either returned or not.
+     */
+    export type getNodeForLocationParameters = {
+      /**
+       * X coordinate.
+       */
+      x: number;
+      /**
+       * Y coordinate.
+       */
+      y: number;
+      /**
+       * False to skip to the nearest non-UA shadow root ancestor (default: false).
+       */
+      includeUserAgentShadowDOM?: boolean;
+      /**
+       * Whether to ignore pointer-events: none on elements and hit test them.
+       */
+      ignorePointerEventsNone?: boolean;
+    }
+    export type getNodeForLocationReturnValue = {
+      /**
+       * Resulting node.
+       */
+      backendNodeId: BackendNodeId;
+      /**
+       * Frame this node belongs to.
+       */
+      frameId: Page.FrameId;
+      /**
+       * Id of the node at given coordinates, only when enabled and requested document.
+       */
+      nodeId?: NodeId;
+    }
+    /**
+     * Returns node's HTML markup.
+     */
+    export type getOuterHTMLParameters = {
+      /**
+       * Identifier of the node.
+       */
+      nodeId?: NodeId;
+      /**
+       * Identifier of the backend node.
+       */
+      backendNodeId?: BackendNodeId;
+      /**
+       * JavaScript object id of the node wrapper.
+       */
+      objectId?: Runtime.RemoteObjectId;
+    }
+    export type getOuterHTMLReturnValue = {
+      /**
+       * Outer HTML markup.
+       */
+      outerHTML: string;
+    }
+    /**
+     * Returns the id of the nearest ancestor that is a relayout boundary.
+     */
+    export type getRelayoutBoundaryParameters = {
+      /**
+       * Id of the node.
+       */
+      nodeId: NodeId;
+    }
+    export type getRelayoutBoundaryReturnValue = {
+      /**
+       * Relayout boundary node id for the given node.
+       */
+      nodeId: NodeId;
+    }
+    /**
+     * Returns search results from given `fromIndex` to given `toIndex` from the search with the given
+identifier.
+     */
+    export type getSearchResultsParameters = {
+      /**
+       * Unique search session identifier.
+       */
+      searchId: string;
+      /**
+       * Start index of the search result to be returned.
+       */
+      fromIndex: number;
+      /**
+       * End index of the search result to be returned.
+       */
+      toIndex: number;
+    }
+    export type getSearchResultsReturnValue = {
+      /**
+       * Ids of the search result nodes.
+       */
+      nodeIds: NodeId[];
+    }
+    /**
+     * Hides any highlight.
+     */
+    export type hideHighlightParameters = {
+    }
+    export type hideHighlightReturnValue = {
+    }
+    /**
+     * Highlights DOM node.
+     */
+    export type highlightNodeParameters = {
+    }
+    export type highlightNodeReturnValue = {
+    }
+    /**
+     * Highlights given rectangle.
+     */
+    export type highlightRectParameters = {
+    }
+    export type highlightRectReturnValue = {
+    }
+    /**
+     * Marks last undoable state.
+     */
+    export type markUndoableStateParameters = {
+    }
+    export type markUndoableStateReturnValue = {
+    }
+    /**
+     * Moves node into the new container, places it before the given anchor.
+     */
+    export type moveToParameters = {
+      /**
+       * Id of the node to move.
+       */
+      nodeId: NodeId;
+      /**
+       * Id of the element to drop the moved node into.
+       */
+      targetNodeId: NodeId;
+      /**
+       * Drop node before this one (if absent, the moved node becomes the last child of
+`targetNodeId`).
+       */
+      insertBeforeNodeId?: NodeId;
+    }
+    export type moveToReturnValue = {
+      /**
+       * New id of the moved node.
+       */
+      nodeId: NodeId;
+    }
+    /**
+     * Searches for a given string in the DOM tree. Use `getSearchResults` to access search results or
+`cancelSearch` to end this search session.
+     */
+    export type performSearchParameters = {
+      /**
+       * Plain text or query selector or XPath search query.
+       */
+      query: string;
+      /**
+       * True to search in user agent shadow DOM.
+       */
+      includeUserAgentShadowDOM?: boolean;
+    }
+    export type performSearchReturnValue = {
+      /**
+       * Unique search session identifier.
+       */
+      searchId: string;
+      /**
+       * Number of search results.
+       */
+      resultCount: number;
+    }
+    /**
+     * Requests that the node is sent to the caller given its path. // FIXME, use XPath
+     */
+    export type pushNodeByPathToFrontendParameters = {
+      /**
+       * Path to node in the proprietary format.
+       */
+      path: string;
+    }
+    export type pushNodeByPathToFrontendReturnValue = {
+      /**
+       * Id of the node for given path.
+       */
+      nodeId: NodeId;
+    }
+    /**
+     * Requests that a batch of nodes is sent to the caller given their backend node ids.
+     */
+    export type pushNodesByBackendIdsToFrontendParameters = {
+      /**
+       * The array of backend node ids.
+       */
+      backendNodeIds: BackendNodeId[];
+    }
+    export type pushNodesByBackendIdsToFrontendReturnValue = {
+      /**
+       * The array of ids of pushed nodes that correspond to the backend ids specified in
+backendNodeIds.
+       */
+      nodeIds: NodeId[];
+    }
+    /**
+     * Executes `querySelector` on a given node.
+     */
+    export type querySelectorParameters = {
+      /**
+       * Id of the node to query upon.
+       */
+      nodeId: NodeId;
+      /**
+       * Selector string.
+       */
+      selector: string;
+    }
+    export type querySelectorReturnValue = {
+      /**
+       * Query selector result.
+       */
+      nodeId: NodeId;
+    }
+    /**
+     * Executes `querySelectorAll` on a given node.
+     */
+    export type querySelectorAllParameters = {
+      /**
+       * Id of the node to query upon.
+       */
+      nodeId: NodeId;
+      /**
+       * Selector string.
+       */
+      selector: string;
+    }
+    export type querySelectorAllReturnValue = {
+      /**
+       * Query selector result.
+       */
+      nodeIds: NodeId[];
+    }
+    /**
+     * Re-does the last undone action.
+     */
+    export type redoParameters = {
+    }
+    export type redoReturnValue = {
+    }
+    /**
+     * Removes attribute with given name from an element with given id.
+     */
+    export type removeAttributeParameters = {
+      /**
+       * Id of the element to remove attribute from.
+       */
+      nodeId: NodeId;
+      /**
+       * Name of the attribute to remove.
+       */
+      name: string;
+    }
+    export type removeAttributeReturnValue = {
+    }
+    /**
+     * Removes node with given id.
+     */
+    export type removeNodeParameters = {
+      /**
+       * Id of the node to remove.
+       */
+      nodeId: NodeId;
+    }
+    export type removeNodeReturnValue = {
+    }
+    /**
+     * Requests that children of the node with given id are returned to the caller in form of
+`setChildNodes` events where not only immediate children are retrieved, but all children down to
+the specified depth.
+     */
+    export type requestChildNodesParameters = {
+      /**
+       * Id of the node to get children for.
+       */
+      nodeId: NodeId;
+      /**
+       * The maximum depth at which children should be retrieved, defaults to 1. Use -1 for the
+entire subtree or provide an integer larger than 0.
+       */
+      depth?: number;
+      /**
+       * Whether or not iframes and shadow roots should be traversed when returning the sub-tree
+(default is false).
+       */
+      pierce?: boolean;
+    }
+    export type requestChildNodesReturnValue = {
+    }
+    /**
+     * Requests that the node is sent to the caller given the JavaScript node object reference. All
+nodes that form the path from the node to the root are also sent to the client as a series of
+`setChildNodes` notifications.
+     */
+    export type requestNodeParameters = {
+      /**
+       * JavaScript object id to convert into node.
+       */
+      objectId: Runtime.RemoteObjectId;
+    }
+    export type requestNodeReturnValue = {
+      /**
+       * Node id for given object.
+       */
+      nodeId: NodeId;
+    }
+    /**
+     * Resolves the JavaScript node object for a given NodeId or BackendNodeId.
+     */
+    export type resolveNodeParameters = {
+      /**
+       * Id of the node to resolve.
+       */
+      nodeId?: NodeId;
+      /**
+       * Backend identifier of the node to resolve.
+       */
+      backendNodeId?: DOM.BackendNodeId;
+      /**
+       * Symbolic group name that can be used to release multiple objects.
+       */
+      objectGroup?: string;
+      /**
+       * Execution context in which to resolve the node.
+       */
+      executionContextId?: Runtime.ExecutionContextId;
+    }
+    export type resolveNodeReturnValue = {
+      /**
+       * JavaScript object wrapper for given node.
+       */
+      object: Runtime.RemoteObject;
+    }
+    /**
+     * Sets attribute for an element with given id.
+     */
+    export type setAttributeValueParameters = {
+      /**
+       * Id of the element to set attribute for.
+       */
+      nodeId: NodeId;
+      /**
+       * Attribute name.
+       */
+      name: string;
+      /**
+       * Attribute value.
+       */
+      value: string;
+    }
+    export type setAttributeValueReturnValue = {
+    }
+    /**
+     * Sets attributes on element with given id. This method is useful when user edits some existing
+attribute value and types in several attribute name/value pairs.
+     */
+    export type setAttributesAsTextParameters = {
+      /**
+       * Id of the element to set attributes for.
+       */
+      nodeId: NodeId;
+      /**
+       * Text with a number of attributes. Will parse this text using HTML parser.
+       */
+      text: string;
+      /**
+       * Attribute name to replace with new attributes derived from text in case text parsed
+successfully.
+       */
+      name?: string;
+    }
+    export type setAttributesAsTextReturnValue = {
+    }
+    /**
+     * Sets files for the given file input element.
+     */
+    export type setFileInputFilesParameters = {
+      /**
+       * Array of file paths to set.
+       */
+      files: string[];
+      /**
+       * Identifier of the node.
+       */
+      nodeId?: NodeId;
+      /**
+       * Identifier of the backend node.
+       */
+      backendNodeId?: BackendNodeId;
+      /**
+       * JavaScript object id of the node wrapper.
+       */
+      objectId?: Runtime.RemoteObjectId;
+    }
+    export type setFileInputFilesReturnValue = {
+    }
+    /**
+     * Sets if stack traces should be captured for Nodes. See `Node.getNodeStackTraces`. Default is disabled.
+     */
+    export type setNodeStackTracesEnabledParameters = {
+      /**
+       * Enable or disable.
+       */
+      enable: boolean;
+    }
+    export type setNodeStackTracesEnabledReturnValue = {
+    }
+    /**
+     * Gets stack traces associated with a Node. As of now, only provides stack trace for Node creation.
+     */
+    export type getNodeStackTracesParameters = {
+      /**
+       * Id of the node to get stack traces for.
+       */
+      nodeId: NodeId;
+    }
+    export type getNodeStackTracesReturnValue = {
+      /**
+       * Creation stack trace, if available.
+       */
+      creation?: Runtime.StackTrace;
+    }
+    /**
+     * Returns file information for the given
+File wrapper.
+     */
+    export type getFileInfoParameters = {
+      /**
+       * JavaScript object id of the node wrapper.
+       */
+      objectId: Runtime.RemoteObjectId;
+    }
+    export type getFileInfoReturnValue = {
+      path: string;
+    }
+    /**
+     * Enables console to refer to the node with given id via $x (see Command Line API for more details
+$x functions).
+     */
+    export type setInspectedNodeParameters = {
+      /**
+       * DOM node id to be accessible by means of $x command line API.
+       */
+      nodeId: NodeId;
+    }
+    export type setInspectedNodeReturnValue = {
+    }
+    /**
+     * Sets node name for a node with given id.
+     */
+    export type setNodeNameParameters = {
+      /**
+       * Id of the node to set name for.
+       */
+      nodeId: NodeId;
+      /**
+       * New node's name.
+       */
+      name: string;
+    }
+    export type setNodeNameReturnValue = {
+      /**
+       * New node's id.
+       */
+      nodeId: NodeId;
+    }
+    /**
+     * Sets node value for a node with given id.
+     */
+    export type setNodeValueParameters = {
+      /**
+       * Id of the node to set value for.
+       */
+      nodeId: NodeId;
+      /**
+       * New node's value.
+       */
+      value: string;
+    }
+    export type setNodeValueReturnValue = {
+    }
+    /**
+     * Sets node HTML markup, returns new node id.
+     */
+    export type setOuterHTMLParameters = {
+      /**
+       * Id of the node to set markup for.
+       */
+      nodeId: NodeId;
+      /**
+       * Outer HTML markup to set.
+       */
+      outerHTML: string;
+    }
+    export type setOuterHTMLReturnValue = {
+    }
+    /**
+     * Undoes the last performed action.
+     */
+    export type undoParameters = {
+    }
+    export type undoReturnValue = {
+    }
+    /**
+     * Returns iframe node that owns iframe with the given domain.
+     */
+    export type getFrameOwnerParameters = {
+      frameId: Page.FrameId;
+    }
+    export type getFrameOwnerReturnValue = {
+      /**
+       * Resulting node.
+       */
+      backendNodeId: BackendNodeId;
+      /**
+       * Id of the node at given coordinates, only when enabled and requested document.
+       */
+      nodeId?: NodeId;
+    }
+  }
+  
+  /**
+   * DOM debugging allows setting breakpoints on particular DOM operations and events. JavaScript
+execution will stop on these operations as if there was a regular breakpoint set.
+   */
+  export module DOMDebugger {
+    /**
+     * DOM breakpoint type.
+     */
+    export type DOMBreakpointType = "subtree-modified"|"attribute-modified"|"node-removed";
+    /**
+     * CSP Violation type.
+     */
+    export type CSPViolationType = "trustedtype-sink-violation"|"trustedtype-policy-violation";
+    /**
+     * Object event listener.
+     */
+    export interface EventListener {
+      /**
+       * `EventListener`'s type.
+       */
+      type: string;
+      /**
+       * `EventListener`'s useCapture.
+       */
+      useCapture: boolean;
+      /**
+       * `EventListener`'s passive flag.
+       */
+      passive: boolean;
+      /**
+       * `EventListener`'s once flag.
+       */
+      once: boolean;
+      /**
+       * Script id of the handler code.
+       */
+      scriptId: Runtime.ScriptId;
+      /**
+       * Line number in the script (0-based).
+       */
+      lineNumber: number;
+      /**
+       * Column number in the script (0-based).
+       */
+      columnNumber: number;
+      /**
+       * Event handler function value.
+       */
+      handler?: Runtime.RemoteObject;
+      /**
+       * Event original handler function value.
+       */
+      originalHandler?: Runtime.RemoteObject;
+      /**
+       * Node the listener is added to (if any).
+       */
+      backendNodeId?: DOM.BackendNodeId;
+    }
+    
+    
+    /**
+     * Returns event listeners of the given object.
+     */
+    export type getEventListenersParameters = {
+      /**
+       * Identifier of the object to return listeners for.
+       */
+      objectId: Runtime.RemoteObjectId;
+      /**
+       * The maximum depth at which Node children should be retrieved, defaults to 1. Use -1 for the
+entire subtree or provide an integer larger than 0.
+       */
+      depth?: number;
+      /**
+       * Whether or not iframes and shadow roots should be traversed when returning the subtree
+(default is false). Reports listeners for all contexts if pierce is enabled.
+       */
+      pierce?: boolean;
+    }
+    export type getEventListenersReturnValue = {
+      /**
+       * Array of relevant listeners.
+       */
+      listeners: EventListener[];
+    }
+    /**
+     * Removes DOM breakpoint that was set using `setDOMBreakpoint`.
+     */
+    export type removeDOMBreakpointParameters = {
+      /**
+       * Identifier of the node to remove breakpoint from.
+       */
+      nodeId: DOM.NodeId;
+      /**
+       * Type of the breakpoint to remove.
+       */
+      type: DOMBreakpointType;
+    }
+    export type removeDOMBreakpointReturnValue = {
+    }
+    /**
+     * Removes breakpoint on particular DOM event.
+     */
+    export type removeEventListenerBreakpointParameters = {
+      /**
+       * Event name.
+       */
+      eventName: string;
+      /**
+       * EventTarget interface name.
+       */
+      targetName?: string;
+    }
+    export type removeEventListenerBreakpointReturnValue = {
+    }
+    /**
+     * Removes breakpoint on particular native event.
+     */
+    export type removeInstrumentationBreakpointParameters = {
+      /**
+       * Instrumentation name to stop on.
+       */
+      eventName: string;
+    }
+    export type removeInstrumentationBreakpointReturnValue = {
+    }
+    /**
+     * Removes breakpoint from XMLHttpRequest.
+     */
+    export type removeXHRBreakpointParameters = {
+      /**
+       * Resource URL substring.
+       */
+      url: string;
+    }
+    export type removeXHRBreakpointReturnValue = {
+    }
+    /**
+     * Sets breakpoint on particular CSP violations.
+     */
+    export type setBreakOnCSPViolationParameters = {
+      /**
+       * CSP Violations to stop upon.
+       */
+      violationTypes: CSPViolationType[];
+    }
+    export type setBreakOnCSPViolationReturnValue = {
+    }
+    /**
+     * Sets breakpoint on particular operation with DOM.
+     */
+    export type setDOMBreakpointParameters = {
+      /**
+       * Identifier of the node to set breakpoint on.
+       */
+      nodeId: DOM.NodeId;
+      /**
+       * Type of the operation to stop upon.
+       */
+      type: DOMBreakpointType;
+    }
+    export type setDOMBreakpointReturnValue = {
+    }
+    /**
+     * Sets breakpoint on particular DOM event.
+     */
+    export type setEventListenerBreakpointParameters = {
+      /**
+       * DOM Event name to stop on (any DOM event will do).
+       */
+      eventName: string;
+      /**
+       * EventTarget interface name to stop on. If equal to `"*"` or not provided, will stop on any
+EventTarget.
+       */
+      targetName?: string;
+    }
+    export type setEventListenerBreakpointReturnValue = {
+    }
+    /**
+     * Sets breakpoint on particular native event.
+     */
+    export type setInstrumentationBreakpointParameters = {
+      /**
+       * Instrumentation name to stop on.
+       */
+      eventName: string;
+    }
+    export type setInstrumentationBreakpointReturnValue = {
+    }
+    /**
+     * Sets breakpoint on XMLHttpRequest.
+     */
+    export type setXHRBreakpointParameters = {
+      /**
+       * Resource URL substring. All XHRs having this substring in the URL will get stopped upon.
+       */
+      url: string;
+    }
+    export type setXHRBreakpointReturnValue = {
+    }
+  }
+  
+  /**
+   * This domain facilitates obtaining document snapshots with DOM, layout, and style information.
+   */
+  export module DOMSnapshot {
+    /**
+     * A Node in the DOM tree.
+     */
+    export interface DOMNode {
+      /**
+       * `Node`'s nodeType.
+       */
+      nodeType: number;
+      /**
+       * `Node`'s nodeName.
+       */
+      nodeName: string;
+      /**
+       * `Node`'s nodeValue.
+       */
+      nodeValue: string;
+      /**
+       * Only set for textarea elements, contains the text value.
+       */
+      textValue?: string;
+      /**
+       * Only set for input elements, contains the input's associated text value.
+       */
+      inputValue?: string;
+      /**
+       * Only set for radio and checkbox input elements, indicates if the element has been checked
+       */
+      inputChecked?: boolean;
+      /**
+       * Only set for option elements, indicates if the element has been selected
+       */
+      optionSelected?: boolean;
+      /**
+       * `Node`'s id, corresponds to DOM.Node.backendNodeId.
+       */
+      backendNodeId: DOM.BackendNodeId;
+      /**
+       * The indexes of the node's child nodes in the `domNodes` array returned by `getSnapshot`, if
+any.
+       */
+      childNodeIndexes?: number[];
+      /**
+       * Attributes of an `Element` node.
+       */
+      attributes?: NameValue[];
+      /**
+       * Indexes of pseudo elements associated with this node in the `domNodes` array returned by
+`getSnapshot`, if any.
+       */
+      pseudoElementIndexes?: number[];
+      /**
+       * The index of the node's related layout tree node in the `layoutTreeNodes` array returned by
+`getSnapshot`, if any.
+       */
+      layoutNodeIndex?: number;
+      /**
+       * Document URL that `Document` or `FrameOwner` node points to.
+       */
+      documentURL?: string;
+      /**
+       * Base URL that `Document` or `FrameOwner` node uses for URL completion.
+       */
+      baseURL?: string;
+      /**
+       * Only set for documents, contains the document's content language.
+       */
+      contentLanguage?: string;
+      /**
+       * Only set for documents, contains the document's character set encoding.
+       */
+      documentEncoding?: string;
+      /**
+       * `DocumentType` node's publicId.
+       */
+      publicId?: string;
+      /**
+       * `DocumentType` node's systemId.
+       */
+      systemId?: string;
+      /**
+       * Frame ID for frame owner elements and also for the document node.
+       */
+      frameId?: Page.FrameId;
+      /**
+       * The index of a frame owner element's content document in the `domNodes` array returned by
+`getSnapshot`, if any.
+       */
+      contentDocumentIndex?: number;
+      /**
+       * Type of a pseudo element node.
+       */
+      pseudoType?: DOM.PseudoType;
+      /**
+       * Shadow root type.
+       */
+      shadowRootType?: DOM.ShadowRootType;
+      /**
+       * Whether this DOM node responds to mouse clicks. This includes nodes that have had click
+event listeners attached via JavaScript as well as anchor tags that naturally navigate when
+clicked.
+       */
+      isClickable?: boolean;
+      /**
+       * Details of the node's event listeners, if any.
+       */
+      eventListeners?: DOMDebugger.EventListener[];
+      /**
+       * The selected url for nodes with a srcset attribute.
+       */
+      currentSourceURL?: string;
+      /**
+       * The url of the script (if any) that generates this node.
+       */
+      originURL?: string;
+      /**
+       * Scroll offsets, set when this node is a Document.
+       */
+      scrollOffsetX?: number;
+      scrollOffsetY?: number;
+    }
+    /**
+     * Details of post layout rendered text positions. The exact layout should not be regarded as
+stable and may change between versions.
+     */
+    export interface InlineTextBox {
+      /**
+       * The bounding box in document coordinates. Note that scroll offset of the document is ignored.
+       */
+      boundingBox: DOM.Rect;
+      /**
+       * The starting index in characters, for this post layout textbox substring. Characters that
+would be represented as a surrogate pair in UTF-16 have length 2.
+       */
+      startCharacterIndex: number;
+      /**
+       * The number of characters in this post layout textbox substring. Characters that would be
+represented as a surrogate pair in UTF-16 have length 2.
+       */
+      numCharacters: number;
+    }
+    /**
+     * Details of an element in the DOM tree with a LayoutObject.
+     */
+    export interface LayoutTreeNode {
+      /**
+       * The index of the related DOM node in the `domNodes` array returned by `getSnapshot`.
+       */
+      domNodeIndex: number;
+      /**
+       * The bounding box in document coordinates. Note that scroll offset of the document is ignored.
+       */
+      boundingBox: DOM.Rect;
+      /**
+       * Contents of the LayoutText, if any.
+       */
+      layoutText?: string;
+      /**
+       * The post-layout inline text nodes, if any.
+       */
+      inlineTextNodes?: InlineTextBox[];
+      /**
+       * Index into the `computedStyles` array returned by `getSnapshot`.
+       */
+      styleIndex?: number;
+      /**
+       * Global paint order index, which is determined by the stacking order of the nodes. Nodes
+that are painted together will have the same index. Only provided if includePaintOrder in
+getSnapshot was true.
+       */
+      paintOrder?: number;
+      /**
+       * Set to true to indicate the element begins a new stacking context.
+       */
+      isStackingContext?: boolean;
+    }
+    /**
+     * A subset of the full ComputedStyle as defined by the request whitelist.
+     */
+    export interface ComputedStyle {
+      /**
+       * Name/value pairs of computed style properties.
+       */
+      properties: NameValue[];
+    }
+    /**
+     * A name/value pair.
+     */
+    export interface NameValue {
+      /**
+       * Attribute/property name.
+       */
+      name: string;
+      /**
+       * Attribute/property value.
+       */
+      value: string;
+    }
+    /**
+     * Index of the string in the strings table.
+     */
+    export type StringIndex = number;
+    /**
+     * Index of the string in the strings table.
+     */
+    export type ArrayOfStrings = StringIndex[];
+    /**
+     * Data that is only present on rare nodes.
+     */
+    export interface RareStringData {
+      index: number[];
+      value: StringIndex[];
+    }
+    export interface RareBooleanData {
+      index: number[];
+    }
+    export interface RareIntegerData {
+      index: number[];
+      value: number[];
+    }
+    export type Rectangle = number[];
+    /**
+     * Document snapshot.
+     */
+    export interface DocumentSnapshot {
+      /**
+       * Document URL that `Document` or `FrameOwner` node points to.
+       */
+      documentURL: StringIndex;
+      /**
+       * Document title.
+       */
+      title: StringIndex;
+      /**
+       * Base URL that `Document` or `FrameOwner` node uses for URL completion.
+       */
+      baseURL: StringIndex;
+      /**
+       * Contains the document's content language.
+       */
+      contentLanguage: StringIndex;
+      /**
+       * Contains the document's character set encoding.
+       */
+      encodingName: StringIndex;
+      /**
+       * `DocumentType` node's publicId.
+       */
+      publicId: StringIndex;
+      /**
+       * `DocumentType` node's systemId.
+       */
+      systemId: StringIndex;
+      /**
+       * Frame ID for frame owner elements and also for the document node.
+       */
+      frameId: StringIndex;
+      /**
+       * A table with dom nodes.
+       */
+      nodes: NodeTreeSnapshot;
+      /**
+       * The nodes in the layout tree.
+       */
+      layout: LayoutTreeSnapshot;
+      /**
+       * The post-layout inline text nodes.
+       */
+      textBoxes: TextBoxSnapshot;
+      /**
+       * Horizontal scroll offset.
+       */
+      scrollOffsetX?: number;
+      /**
+       * Vertical scroll offset.
+       */
+      scrollOffsetY?: number;
+      /**
+       * Document content width.
+       */
+      contentWidth?: number;
+      /**
+       * Document content height.
+       */
+      contentHeight?: number;
+    }
+    /**
+     * Table containing nodes.
+     */
+    export interface NodeTreeSnapshot {
+      /**
+       * Parent node index.
+       */
+      parentIndex?: number[];
+      /**
+       * `Node`'s nodeType.
+       */
+      nodeType?: number[];
+      /**
+       * `Node`'s nodeName.
+       */
+      nodeName?: StringIndex[];
+      /**
+       * `Node`'s nodeValue.
+       */
+      nodeValue?: StringIndex[];
+      /**
+       * `Node`'s id, corresponds to DOM.Node.backendNodeId.
+       */
+      backendNodeId?: DOM.BackendNodeId[];
+      /**
+       * Attributes of an `Element` node. Flatten name, value pairs.
+       */
+      attributes?: ArrayOfStrings[];
+      /**
+       * Only set for textarea elements, contains the text value.
+       */
+      textValue?: RareStringData;
+      /**
+       * Only set for input elements, contains the input's associated text value.
+       */
+      inputValue?: RareStringData;
+      /**
+       * Only set for radio and checkbox input elements, indicates if the element has been checked
+       */
+      inputChecked?: RareBooleanData;
+      /**
+       * Only set for option elements, indicates if the element has been selected
+       */
+      optionSelected?: RareBooleanData;
+      /**
+       * The index of the document in the list of the snapshot documents.
+       */
+      contentDocumentIndex?: RareIntegerData;
+      /**
+       * Type of a pseudo element node.
+       */
+      pseudoType?: RareStringData;
+      /**
+       * Whether this DOM node responds to mouse clicks. This includes nodes that have had click
+event listeners attached via JavaScript as well as anchor tags that naturally navigate when
+clicked.
+       */
+      isClickable?: RareBooleanData;
+      /**
+       * The selected url for nodes with a srcset attribute.
+       */
+      currentSourceURL?: RareStringData;
+      /**
+       * The url of the script (if any) that generates this node.
+       */
+      originURL?: RareStringData;
+    }
+    /**
+     * Table of details of an element in the DOM tree with a LayoutObject.
+     */
+    export interface LayoutTreeSnapshot {
+      /**
+       * Index of the corresponding node in the `NodeTreeSnapshot` array returned by `captureSnapshot`.
+       */
+      nodeIndex: number[];
+      /**
+       * Array of indexes specifying computed style strings, filtered according to the `computedStyles` parameter passed to `captureSnapshot`.
+       */
+      styles: ArrayOfStrings[];
+      /**
+       * The absolute position bounding box.
+       */
+      bounds: Rectangle[];
+      /**
+       * Contents of the LayoutText, if any.
+       */
+      text: StringIndex[];
+      /**
+       * Stacking context information.
+       */
+      stackingContexts: RareBooleanData;
+      /**
+       * Global paint order index, which is determined by the stacking order of the nodes. Nodes
+that are painted together will have the same index. Only provided if includePaintOrder in
+captureSnapshot was true.
+       */
+      paintOrders?: number[];
+      /**
+       * The offset rect of nodes. Only available when includeDOMRects is set to true
+       */
+      offsetRects?: Rectangle[];
+      /**
+       * The scroll rect of nodes. Only available when includeDOMRects is set to true
+       */
+      scrollRects?: Rectangle[];
+      /**
+       * The client rect of nodes. Only available when includeDOMRects is set to true
+       */
+      clientRects?: Rectangle[];
+    }
+    /**
+     * Table of details of the post layout rendered text positions. The exact layout should not be regarded as
+stable and may change between versions.
+     */
+    export interface TextBoxSnapshot {
+      /**
+       * Index of the layout tree node that owns this box collection.
+       */
+      layoutIndex: number[];
+      /**
+       * The absolute position bounding box.
+       */
+      bounds: Rectangle[];
+      /**
+       * The starting index in characters, for this post layout textbox substring. Characters that
+would be represented as a surrogate pair in UTF-16 have length 2.
+       */
+      start: number[];
+      /**
+       * The number of characters in this post layout textbox substring. Characters that would be
+represented as a surrogate pair in UTF-16 have length 2.
+       */
+      length: number[];
+    }
+    
+    
+    /**
+     * Disables DOM snapshot agent for the given page.
+     */
+    export type disableParameters = {
+    }
+    export type disableReturnValue = {
+    }
+    /**
+     * Enables DOM snapshot agent for the given page.
+     */
+    export type enableParameters = {
+    }
+    export type enableReturnValue = {
+    }
+    /**
+     * Returns a document snapshot, including the full DOM tree of the root node (including iframes,
+template contents, and imported documents) in a flattened array, as well as layout and
+white-listed computed style information for the nodes. Shadow DOM in the returned DOM tree is
+flattened.
+     */
+    export type getSnapshotParameters = {
+      /**
+       * Whitelist of computed styles to return.
+       */
+      computedStyleWhitelist: string[];
+      /**
+       * Whether or not to retrieve details of DOM listeners (default false).
+       */
+      includeEventListeners?: boolean;
+      /**
+       * Whether to determine and include the paint order index of LayoutTreeNodes (default false).
+       */
+      includePaintOrder?: boolean;
+      /**
+       * Whether to include UA shadow tree in the snapshot (default false).
+       */
+      includeUserAgentShadowTree?: boolean;
+    }
+    export type getSnapshotReturnValue = {
+      /**
+       * The nodes in the DOM tree. The DOMNode at index 0 corresponds to the root document.
+       */
+      domNodes: DOMNode[];
+      /**
+       * The nodes in the layout tree.
+       */
+      layoutTreeNodes: LayoutTreeNode[];
+      /**
+       * Whitelisted ComputedStyle properties for each node in the layout tree.
+       */
+      computedStyles: ComputedStyle[];
+    }
+    /**
+     * Returns a document snapshot, including the full DOM tree of the root node (including iframes,
+template contents, and imported documents) in a flattened array, as well as layout and
+white-listed computed style information for the nodes. Shadow DOM in the returned DOM tree is
+flattened.
+     */
+    export type captureSnapshotParameters = {
+      /**
+       * Whitelist of computed styles to return.
+       */
+      computedStyles: string[];
+      /**
+       * Whether to include layout object paint orders into the snapshot.
+       */
+      includePaintOrder?: boolean;
+      /**
+       * Whether to include DOM rectangles (offsetRects, clientRects, scrollRects) into the snapshot
+       */
+      includeDOMRects?: boolean;
+    }
+    export type captureSnapshotReturnValue = {
+      /**
+       * The nodes in the DOM tree. The DOMNode at index 0 corresponds to the root document.
+       */
+      documents: DocumentSnapshot[];
+      /**
+       * Shared string table that all string properties refer to with indexes.
+       */
+      strings: string[];
+    }
+  }
+  
+  /**
+   * Query and modify DOM storage.
+   */
+  export module DOMStorage {
+    /**
+     * DOM Storage identifier.
+     */
+    export interface StorageId {
+      /**
+       * Security origin for the storage.
+       */
+      securityOrigin: string;
+      /**
+       * Whether the storage is local storage (not session storage).
+       */
+      isLocalStorage: boolean;
+    }
+    /**
+     * DOM Storage item.
+     */
+    export type Item = string[];
+    
+    export type domStorageItemAddedPayload = {
+      storageId: StorageId;
+      key: string;
+      newValue: string;
+    }
+    export type domStorageItemRemovedPayload = {
+      storageId: StorageId;
+      key: string;
+    }
+    export type domStorageItemUpdatedPayload = {
+      storageId: StorageId;
+      key: string;
+      oldValue: string;
+      newValue: string;
+    }
+    export type domStorageItemsClearedPayload = {
+      storageId: StorageId;
+    }
+    
+    export type clearParameters = {
+      storageId: StorageId;
+    }
+    export type clearReturnValue = {
+    }
+    /**
+     * Disables storage tracking, prevents storage events from being sent to the client.
+     */
+    export type disableParameters = {
+    }
+    export type disableReturnValue = {
+    }
+    /**
+     * Enables storage tracking, storage events will now be delivered to the client.
+     */
+    export type enableParameters = {
+    }
+    export type enableReturnValue = {
+    }
+    export type getDOMStorageItemsParameters = {
+      storageId: StorageId;
+    }
+    export type getDOMStorageItemsReturnValue = {
+      entries: Item[];
+    }
+    export type removeDOMStorageItemParameters = {
+      storageId: StorageId;
+      key: string;
+    }
+    export type removeDOMStorageItemReturnValue = {
+    }
+    export type setDOMStorageItemParameters = {
+      storageId: StorageId;
+      key: string;
+      value: string;
+    }
+    export type setDOMStorageItemReturnValue = {
+    }
+  }
+  
+  export module Database {
+    /**
+     * Unique identifier of Database object.
+     */
+    export type DatabaseId = string;
+    /**
+     * Database object.
+     */
+    export interface Database {
+      /**
+       * Database ID.
+       */
+      id: DatabaseId;
+      /**
+       * Database domain.
+       */
+      domain: string;
+      /**
+       * Database name.
+       */
+      name: string;
+      /**
+       * Database version.
+       */
+      version: string;
+    }
+    /**
+     * Database error.
+     */
+    export interface Error {
+      /**
+       * Error message.
+       */
+      message: string;
+      /**
+       * Error code.
+       */
+      code: number;
+    }
+    
+    export type addDatabasePayload = {
+      database: Database;
+    }
+    
+    /**
+     * Disables database tracking, prevents database events from being sent to the client.
+     */
+    export type disableParameters = {
+    }
+    export type disableReturnValue = {
+    }
+    /**
+     * Enables database tracking, database events will now be delivered to the client.
+     */
+    export type enableParameters = {
+    }
+    export type enableReturnValue = {
+    }
+    export type executeSQLParameters = {
+      databaseId: DatabaseId;
+      query: string;
+    }
+    export type executeSQLReturnValue = {
+      columnNames?: string[];
+      values?: any[];
+      sqlError?: Error;
+    }
+    export type getDatabaseTableNamesParameters = {
+      databaseId: DatabaseId;
+    }
+    export type getDatabaseTableNamesReturnValue = {
+      tableNames: string[];
+    }
+  }
+  
+  export module DeviceOrientation {
+    
+    
+    /**
+     * Clears the overridden Device Orientation.
+     */
+    export type clearDeviceOrientationOverrideParameters = {
+    }
+    export type clearDeviceOrientationOverrideReturnValue = {
+    }
+    /**
+     * Overrides the Device Orientation.
+     */
+    export type setDeviceOrientationOverrideParameters = {
+      /**
+       * Mock alpha
+       */
+      alpha: number;
+      /**
+       * Mock beta
+       */
+      beta: number;
+      /**
+       * Mock gamma
+       */
+      gamma: number;
+    }
+    export type setDeviceOrientationOverrideReturnValue = {
+    }
+  }
+  
+  /**
+   * This domain emulates different environments for the page.
+   */
+  export module Emulation {
+    /**
+     * Screen orientation.
+     */
+    export interface ScreenOrientation {
+      /**
+       * Orientation type.
+       */
+      type: "portraitPrimary"|"portraitSecondary"|"landscapePrimary"|"landscapeSecondary";
+      /**
+       * Orientation angle.
+       */
+      angle: number;
+    }
+    export interface DisplayFeature {
+      /**
+       * Orientation of a display feature in relation to screen
+       */
+      orientation: "vertical"|"horizontal";
+      /**
+       * The offset from the screen origin in either the x (for vertical
+orientation) or y (for horizontal orientation) direction.
+       */
+      offset: number;
+      /**
+       * A display feature may mask content such that it is not physically
+displayed - this length along with the offset describes this area.
+A display feature that only splits content will have a 0 mask_length.
+       */
+      maskLength: number;
+    }
+    export interface MediaFeature {
+      name: string;
+      value: string;
+    }
+    /**
+     * advance: If the scheduler runs out of immediate work, the virtual time base may fast forward to
+allow the next delayed task (if any) to run; pause: The virtual time base may not advance;
+pauseIfNetworkFetchesPending: The virtual time base may not advance if there are any pending
+resource fetches.
+     */
+    export type VirtualTimePolicy = "advance"|"pause"|"pauseIfNetworkFetchesPending";
+    /**
+     * Used to specify User Agent Cient Hints to emulate. See https://wicg.github.io/ua-client-hints
+     */
+    export interface UserAgentBrandVersion {
+      brand: string;
+      version: string;
+    }
+    /**
+     * Used to specify User Agent Cient Hints to emulate. See https://wicg.github.io/ua-client-hints
+     */
+    export interface UserAgentMetadata {
+      brands: UserAgentBrandVersion[];
+      fullVersion: string;
+      platform: string;
+      platformVersion: string;
+      architecture: string;
+      model: string;
+      mobile: boolean;
+    }
+    /**
+     * Enum of image types that can be disabled.
+     */
+    export type DisabledImageType = "avif"|"webp";
+    
+    /**
+     * Notification sent after the virtual time budget for the current VirtualTimePolicy has run out.
+     */
+    export type virtualTimeBudgetExpiredPayload = void;
+    
+    /**
+     * Tells whether emulation is supported.
+     */
+    export type canEmulateParameters = {
+    }
+    export type canEmulateReturnValue = {
+      /**
+       * True if emulation is supported.
+       */
+      result: boolean;
+    }
+    /**
+     * Clears the overriden device metrics.
+     */
+    export type clearDeviceMetricsOverrideParameters = {
+    }
+    export type clearDeviceMetricsOverrideReturnValue = {
+    }
+    /**
+     * Clears the overriden Geolocation Position and Error.
+     */
+    export type clearGeolocationOverrideParameters = {
+    }
+    export type clearGeolocationOverrideReturnValue = {
+    }
+    /**
+     * Requests that page scale factor is reset to initial values.
+     */
+    export type resetPageScaleFactorParameters = {
+    }
+    export type resetPageScaleFactorReturnValue = {
+    }
+    /**
+     * Enables or disables simulating a focused and active page.
+     */
+    export type setFocusEmulationEnabledParameters = {
+      /**
+       * Whether to enable to disable focus emulation.
+       */
+      enabled: boolean;
+    }
+    export type setFocusEmulationEnabledReturnValue = {
+    }
+    /**
+     * Enables CPU throttling to emulate slow CPUs.
+     */
+    export type setCPUThrottlingRateParameters = {
+      /**
+       * Throttling rate as a slowdown factor (1 is no throttle, 2 is 2x slowdown, etc).
+       */
+      rate: number;
+    }
+    export type setCPUThrottlingRateReturnValue = {
+    }
+    /**
+     * Sets or clears an override of the default background color of the frame. This override is used
+if the content does not specify one.
+     */
+    export type setDefaultBackgroundColorOverrideParameters = {
+      /**
+       * RGBA of the default background color. If not specified, any existing override will be
+cleared.
+       */
+      color?: DOM.RGBA;
+    }
+    export type setDefaultBackgroundColorOverrideReturnValue = {
+    }
+    /**
+     * Overrides the values of device screen dimensions (window.screen.width, window.screen.height,
+window.innerWidth, window.innerHeight, and "device-width"/"device-height"-related CSS media
+query results).
+     */
+    export type setDeviceMetricsOverrideParameters = {
+      /**
+       * Overriding width value in pixels (minimum 0, maximum 10000000). 0 disables the override.
+       */
+      width: number;
+      /**
+       * Overriding height value in pixels (minimum 0, maximum 10000000). 0 disables the override.
+       */
+      height: number;
+      /**
+       * Overriding device scale factor value. 0 disables the override.
+       */
+      deviceScaleFactor: number;
+      /**
+       * Whether to emulate mobile device. This includes viewport meta tag, overlay scrollbars, text
+autosizing and more.
+       */
+      mobile: boolean;
+      /**
+       * Scale to apply to resulting view image.
+       */
+      scale?: number;
+      /**
+       * Overriding screen width value in pixels (minimum 0, maximum 10000000).
+       */
+      screenWidth?: number;
+      /**
+       * Overriding screen height value in pixels (minimum 0, maximum 10000000).
+       */
+      screenHeight?: number;
+      /**
+       * Overriding view X position on screen in pixels (minimum 0, maximum 10000000).
+       */
+      positionX?: number;
+      /**
+       * Overriding view Y position on screen in pixels (minimum 0, maximum 10000000).
+       */
+      positionY?: number;
+      /**
+       * Do not set visible view size, rely upon explicit setVisibleSize call.
+       */
+      dontSetVisibleSize?: boolean;
+      /**
+       * Screen orientation override.
+       */
+      screenOrientation?: ScreenOrientation;
+      /**
+       * If set, the visible area of the page will be overridden to this viewport. This viewport
+change is not observed by the page, e.g. viewport-relative elements do not change positions.
+       */
+      viewport?: Page.Viewport;
+      /**
+       * If set, the display feature of a multi-segment screen. If not set, multi-segment support
+is turned-off.
+       */
+      displayFeature?: DisplayFeature;
+    }
+    export type setDeviceMetricsOverrideReturnValue = {
+    }
+    export type setScrollbarsHiddenParameters = {
+      /**
+       * Whether scrollbars should be always hidden.
+       */
+      hidden: boolean;
+    }
+    export type setScrollbarsHiddenReturnValue = {
+    }
+    export type setDocumentCookieDisabledParameters = {
+      /**
+       * Whether document.coookie API should be disabled.
+       */
+      disabled: boolean;
+    }
+    export type setDocumentCookieDisabledReturnValue = {
+    }
+    export type setEmitTouchEventsForMouseParameters = {
+      /**
+       * Whether touch emulation based on mouse input should be enabled.
+       */
+      enabled: boolean;
+      /**
+       * Touch/gesture events configuration. Default: current platform.
+       */
+      configuration?: "mobile"|"desktop";
+    }
+    export type setEmitTouchEventsForMouseReturnValue = {
+    }
+    /**
+     * Emulates the given media type or media feature for CSS media queries.
+     */
+    export type setEmulatedMediaParameters = {
+      /**
+       * Media type to emulate. Empty string disables the override.
+       */
+      media?: string;
+      /**
+       * Media features to emulate.
+       */
+      features?: MediaFeature[];
+    }
+    export type setEmulatedMediaReturnValue = {
+    }
+    /**
+     * Emulates the given vision deficiency.
+     */
+    export type setEmulatedVisionDeficiencyParameters = {
+      /**
+       * Vision deficiency to emulate.
+       */
+      type: "none"|"achromatopsia"|"blurredVision"|"deuteranopia"|"protanopia"|"tritanopia";
+    }
+    export type setEmulatedVisionDeficiencyReturnValue = {
+    }
+    /**
+     * Overrides the Geolocation Position or Error. Omitting any of the parameters emulates position
+unavailable.
+     */
+    export type setGeolocationOverrideParameters = {
+      /**
+       * Mock latitude
+       */
+      latitude?: number;
+      /**
+       * Mock longitude
+       */
+      longitude?: number;
+      /**
+       * Mock accuracy
+       */
+      accuracy?: number;
+    }
+    export type setGeolocationOverrideReturnValue = {
+    }
+    /**
+     * Overrides the Idle state.
+     */
+    export type setIdleOverrideParameters = {
+      /**
+       * Mock isUserActive
+       */
+      isUserActive: boolean;
+      /**
+       * Mock isScreenUnlocked
+       */
+      isScreenUnlocked: boolean;
+    }
+    export type setIdleOverrideReturnValue = {
+    }
+    /**
+     * Clears Idle state overrides.
+     */
+    export type clearIdleOverrideParameters = {
+    }
+    export type clearIdleOverrideReturnValue = {
+    }
+    /**
+     * Overrides value returned by the javascript navigator object.
+     */
+    export type setNavigatorOverridesParameters = {
+      /**
+       * The platform navigator.platform should return.
+       */
+      platform: string;
+    }
+    export type setNavigatorOverridesReturnValue = {
+    }
+    /**
+     * Sets a specified page scale factor.
+     */
+    export type setPageScaleFactorParameters = {
+      /**
+       * Page scale factor.
+       */
+      pageScaleFactor: number;
+    }
+    export type setPageScaleFactorReturnValue = {
+    }
+    /**
+     * Switches script execution in the page.
+     */
+    export type setScriptExecutionDisabledParameters = {
+      /**
+       * Whether script execution should be disabled in the page.
+       */
+      value: boolean;
+    }
+    export type setScriptExecutionDisabledReturnValue = {
+    }
+    /**
+     * Enables touch on platforms which do not support them.
+     */
+    export type setTouchEmulationEnabledParameters = {
+      /**
+       * Whether the touch event emulation should be enabled.
+       */
+      enabled: boolean;
+      /**
+       * Maximum touch points supported. Defaults to one.
+       */
+      maxTouchPoints?: number;
+    }
+    export type setTouchEmulationEnabledReturnValue = {
+    }
+    /**
+     * Turns on virtual time for all frames (replacing real-time with a synthetic time source) and sets
+the current virtual time policy.  Note this supersedes any previous time budget.
+     */
+    export type setVirtualTimePolicyParameters = {
+      policy: VirtualTimePolicy;
+      /**
+       * If set, after this many virtual milliseconds have elapsed virtual time will be paused and a
+virtualTimeBudgetExpired event is sent.
+       */
+      budget?: number;
+      /**
+       * If set this specifies the maximum number of tasks that can be run before virtual is forced
+forwards to prevent deadlock.
+       */
+      maxVirtualTimeTaskStarvationCount?: number;
+      /**
+       * If set the virtual time policy change should be deferred until any frame starts navigating.
+Note any previous deferred policy change is superseded.
+       */
+      waitForNavigation?: boolean;
+      /**
+       * If set, base::Time::Now will be overriden to initially return this value.
+       */
+      initialVirtualTime?: Network.TimeSinceEpoch;
+    }
+    export type setVirtualTimePolicyReturnValue = {
+      /**
+       * Absolute timestamp at which virtual time was first enabled (up time in milliseconds).
+       */
+      virtualTimeTicksBase: number;
+    }
+    /**
+     * Overrides default host system locale with the specified one.
+     */
+    export type setLocaleOverrideParameters = {
+      /**
+       * ICU style C locale (e.g. "en_US"). If not specified or empty, disables the override and
+restores default host system locale.
+       */
+      locale?: string;
+    }
+    export type setLocaleOverrideReturnValue = {
+    }
+    /**
+     * Overrides default host system timezone with the specified one.
+     */
+    export type setTimezoneOverrideParameters = {
+      /**
+       * The timezone identifier. If empty, disables the override and
+restores default host system timezone.
+       */
+      timezoneId: string;
+    }
+    export type setTimezoneOverrideReturnValue = {
+    }
+    /**
+     * Resizes the frame/viewport of the page. Note that this does not affect the frame's container
+(e.g. browser window). Can be used to produce screenshots of the specified size. Not supported
+on Android.
+     */
+    export type setVisibleSizeParameters = {
+      /**
+       * Frame width (DIP).
+       */
+      width: number;
+      /**
+       * Frame height (DIP).
+       */
+      height: number;
+    }
+    export type setVisibleSizeReturnValue = {
+    }
+    export type setDisabledImageTypesParameters = {
+      /**
+       * Image types to disable.
+       */
+      imageTypes: DisabledImageType[];
+    }
+    export type setDisabledImageTypesReturnValue = {
+    }
+    /**
+     * Allows overriding user agent with the given string.
+     */
+    export type setUserAgentOverrideParameters = {
+      /**
+       * User agent to use.
+       */
+      userAgent: string;
+      /**
+       * Browser langugage to emulate.
+       */
+      acceptLanguage?: string;
+      /**
+       * The platform navigator.platform should return.
+       */
+      platform?: string;
+      /**
+       * To be sent in Sec-CH-UA-* headers and returned in navigator.userAgentData
+       */
+      userAgentMetadata?: UserAgentMetadata;
+    }
+    export type setUserAgentOverrideReturnValue = {
+    }
+  }
+  
+  /**
+   * This domain provides experimental commands only supported in headless mode.
+   */
+  export module HeadlessExperimental {
+    /**
+     * Encoding options for a screenshot.
+     */
+    export interface ScreenshotParams {
+      /**
+       * Image compression format (defaults to png).
+       */
+      format?: "jpeg"|"png";
+      /**
+       * Compression quality from range [0..100] (jpeg only).
+       */
+      quality?: number;
+    }
+    
+    /**
+     * Issued when the target starts or stops needing BeginFrames.
+Deprecated. Issue beginFrame unconditionally instead and use result from
+beginFrame to detect whether the frames were suppressed.
+     */
+    export type needsBeginFramesChangedPayload = {
+      /**
+       * True if BeginFrames are needed, false otherwise.
+       */
+      needsBeginFrames: boolean;
+    }
+    
+    /**
+     * Sends a BeginFrame to the target and returns when the frame was completed. Optionally captures a
+screenshot from the resulting frame. Requires that the target was created with enabled
+BeginFrameControl. Designed for use with --run-all-compositor-stages-before-draw, see also
+https://goo.gl/3zHXhB for more background.
+     */
+    export type beginFrameParameters = {
+      /**
+       * Timestamp of this BeginFrame in Renderer TimeTicks (milliseconds of uptime). If not set,
+the current time will be used.
+       */
+      frameTimeTicks?: number;
+      /**
+       * The interval between BeginFrames that is reported to the compositor, in milliseconds.
+Defaults to a 60 frames/second interval, i.e. about 16.666 milliseconds.
+       */
+      interval?: number;
+      /**
+       * Whether updates should not be committed and drawn onto the display. False by default. If
+true, only side effects of the BeginFrame will be run, such as layout and animations, but
+any visual updates may not be visible on the display or in screenshots.
+       */
+      noDisplayUpdates?: boolean;
+      /**
+       * If set, a screenshot of the frame will be captured and returned in the response. Otherwise,
+no screenshot will be captured. Note that capturing a screenshot can fail, for example,
+during renderer initialization. In such a case, no screenshot data will be returned.
+       */
+      screenshot?: ScreenshotParams;
+    }
+    export type beginFrameReturnValue = {
+      /**
+       * Whether the BeginFrame resulted in damage and, thus, a new frame was committed to the
+display. Reported for diagnostic uses, may be removed in the future.
+       */
+      hasDamage: boolean;
+      /**
+       * Base64-encoded image data of the screenshot, if one was requested and successfully taken.
+       */
+      screenshotData?: binary;
+    }
+    /**
+     * Disables headless events for the target.
+     */
+    export type disableParameters = {
+    }
+    export type disableReturnValue = {
+    }
+    /**
+     * Enables headless events for the target.
+     */
+    export type enableParameters = {
+    }
+    export type enableReturnValue = {
+    }
+  }
+  
+  /**
+   * Input/Output operations for streams produced by DevTools.
+   */
+  export module IO {
+    /**
+     * This is either obtained from another method or specifed as `blob:&lt;uuid&gt;` where
+`&lt;uuid&gt` is an UUID of a Blob.
+     */
+    export type StreamHandle = string;
+    
+    
+    /**
+     * Close the stream, discard any temporary backing storage.
+     */
+    export type closeParameters = {
+      /**
+       * Handle of the stream to close.
+       */
+      handle: StreamHandle;
+    }
+    export type closeReturnValue = {
+    }
+    /**
+     * Read a chunk of the stream
+     */
+    export type readParameters = {
+      /**
+       * Handle of the stream to read.
+       */
+      handle: StreamHandle;
+      /**
+       * Seek to the specified offset before reading (if not specificed, proceed with offset
+following the last read). Some types of streams may only support sequential reads.
+       */
+      offset?: number;
+      /**
+       * Maximum number of bytes to read (left upon the agent discretion if not specified).
+       */
+      size?: number;
+    }
+    export type readReturnValue = {
+      /**
+       * Set if the data is base64-encoded
+       */
+      base64Encoded?: boolean;
+      /**
+       * Data that were read.
+       */
+      data: string;
+      /**
+       * Set if the end-of-file condition occured while reading.
+       */
+      eof: boolean;
+    }
+    /**
+     * Return UUID of Blob object specified by a remote object id.
+     */
+    export type resolveBlobParameters = {
+      /**
+       * Object id of a Blob object wrapper.
+       */
+      objectId: Runtime.RemoteObjectId;
+    }
+    export type resolveBlobReturnValue = {
+      /**
+       * UUID of the specified Blob.
+       */
+      uuid: string;
+    }
+  }
+  
+  export module IndexedDB {
+    /**
+     * Database with an array of object stores.
+     */
+    export interface DatabaseWithObjectStores {
+      /**
+       * Database name.
+       */
+      name: string;
+      /**
+       * Database version (type is not 'integer', as the standard
+requires the version number to be 'unsigned long long')
+       */
+      version: number;
+      /**
+       * Object stores in this database.
+       */
+      objectStores: ObjectStore[];
+    }
+    /**
+     * Object store.
+     */
+    export interface ObjectStore {
+      /**
+       * Object store name.
+       */
+      name: string;
+      /**
+       * Object store key path.
+       */
+      keyPath: KeyPath;
+      /**
+       * If true, object store has auto increment flag set.
+       */
+      autoIncrement: boolean;
+      /**
+       * Indexes in this object store.
+       */
+      indexes: ObjectStoreIndex[];
+    }
+    /**
+     * Object store index.
+     */
+    export interface ObjectStoreIndex {
+      /**
+       * Index name.
+       */
+      name: string;
+      /**
+       * Index key path.
+       */
+      keyPath: KeyPath;
+      /**
+       * If true, index is unique.
+       */
+      unique: boolean;
+      /**
+       * If true, index allows multiple entries for a key.
+       */
+      multiEntry: boolean;
+    }
+    /**
+     * Key.
+     */
+    export interface Key {
+      /**
+       * Key type.
+       */
+      type: "number"|"string"|"date"|"array";
+      /**
+       * Number value.
+       */
+      number?: number;
+      /**
+       * String value.
+       */
+      string?: string;
+      /**
+       * Date value.
+       */
+      date?: number;
+      /**
+       * Array value.
+       */
+      array?: Key[];
+    }
+    /**
+     * Key range.
+     */
+    export interface KeyRange {
+      /**
+       * Lower bound.
+       */
+      lower?: Key;
+      /**
+       * Upper bound.
+       */
+      upper?: Key;
+      /**
+       * If true lower bound is open.
+       */
+      lowerOpen: boolean;
+      /**
+       * If true upper bound is open.
+       */
+      upperOpen: boolean;
+    }
+    /**
+     * Data entry.
+     */
+    export interface DataEntry {
+      /**
+       * Key object.
+       */
+      key: Runtime.RemoteObject;
+      /**
+       * Primary key object.
+       */
+      primaryKey: Runtime.RemoteObject;
+      /**
+       * Value object.
+       */
+      value: Runtime.RemoteObject;
+    }
+    /**
+     * Key path.
+     */
+    export interface KeyPath {
+      /**
+       * Key path type.
+       */
+      type: "null"|"string"|"array";
+      /**
+       * String value.
+       */
+      string?: string;
+      /**
+       * Array value.
+       */
+      array?: string[];
+    }
+    
+    
+    /**
+     * Clears all entries from an object store.
+     */
+    export type clearObjectStoreParameters = {
+      /**
+       * Security origin.
+       */
+      securityOrigin: string;
+      /**
+       * Database name.
+       */
+      databaseName: string;
+      /**
+       * Object store name.
+       */
+      objectStoreName: string;
+    }
+    export type clearObjectStoreReturnValue = {
+    }
+    /**
+     * Deletes a database.
+     */
+    export type deleteDatabaseParameters = {
+      /**
+       * Security origin.
+       */
+      securityOrigin: string;
+      /**
+       * Database name.
+       */
+      databaseName: string;
+    }
+    export type deleteDatabaseReturnValue = {
+    }
+    /**
+     * Delete a range of entries from an object store
+     */
+    export type deleteObjectStoreEntriesParameters = {
+      securityOrigin: string;
+      databaseName: string;
+      objectStoreName: string;
+      /**
+       * Range of entry keys to delete
+       */
+      keyRange: KeyRange;
+    }
+    export type deleteObjectStoreEntriesReturnValue = {
+    }
+    /**
+     * Disables events from backend.
+     */
+    export type disableParameters = {
+    }
+    export type disableReturnValue = {
+    }
+    /**
+     * Enables events from backend.
+     */
+    export type enableParameters = {
+    }
+    export type enableReturnValue = {
+    }
+    /**
+     * Requests data from object store or index.
+     */
+    export type requestDataParameters = {
+      /**
+       * Security origin.
+       */
+      securityOrigin: string;
+      /**
+       * Database name.
+       */
+      databaseName: string;
+      /**
+       * Object store name.
+       */
+      objectStoreName: string;
+      /**
+       * Index name, empty string for object store data requests.
+       */
+      indexName: string;
+      /**
+       * Number of records to skip.
+       */
+      skipCount: number;
+      /**
+       * Number of records to fetch.
+       */
+      pageSize: number;
+      /**
+       * Key range.
+       */
+      keyRange?: KeyRange;
+    }
+    export type requestDataReturnValue = {
+      /**
+       * Array of object store data entries.
+       */
+      objectStoreDataEntries: DataEntry[];
+      /**
+       * If true, there are more entries to fetch in the given range.
+       */
+      hasMore: boolean;
+    }
+    /**
+     * Gets metadata of an object store
+     */
+    export type getMetadataParameters = {
+      /**
+       * Security origin.
+       */
+      securityOrigin: string;
+      /**
+       * Database name.
+       */
+      databaseName: string;
+      /**
+       * Object store name.
+       */
+      objectStoreName: string;
+    }
+    export type getMetadataReturnValue = {
+      /**
+       * the entries count
+       */
+      entriesCount: number;
+      /**
+       * the current value of key generator, to become the next inserted
+key into the object store. Valid if objectStore.autoIncrement
+is true.
+       */
+      keyGeneratorValue: number;
+    }
+    /**
+     * Requests database with given name in given frame.
+     */
+    export type requestDatabaseParameters = {
+      /**
+       * Security origin.
+       */
+      securityOrigin: string;
+      /**
+       * Database name.
+       */
+      databaseName: string;
+    }
+    export type requestDatabaseReturnValue = {
+      /**
+       * Database with an array of object stores.
+       */
+      databaseWithObjectStores: DatabaseWithObjectStores;
+    }
+    /**
+     * Requests database names for given security origin.
+     */
+    export type requestDatabaseNamesParameters = {
+      /**
+       * Security origin.
+       */
+      securityOrigin: string;
+    }
+    export type requestDatabaseNamesReturnValue = {
+      /**
+       * Database names for origin.
+       */
+      databaseNames: string[];
+    }
+  }
+  
+  export module Input {
+    export interface TouchPoint {
+      /**
+       * X coordinate of the event relative to the main frame's viewport in CSS pixels.
+       */
+      x: number;
+      /**
+       * Y coordinate of the event relative to the main frame's viewport in CSS pixels. 0 refers to
+the top of the viewport and Y increases as it proceeds towards the bottom of the viewport.
+       */
+      y: number;
+      /**
+       * X radius of the touch area (default: 1.0).
+       */
+      radiusX?: number;
+      /**
+       * Y radius of the touch area (default: 1.0).
+       */
+      radiusY?: number;
+      /**
+       * Rotation angle (default: 0.0).
+       */
+      rotationAngle?: number;
+      /**
+       * Force (default: 1.0).
+       */
+      force?: number;
+      /**
+       * The normalized tangential pressure, which has a range of [-1,1] (default: 0).
+       */
+      tangentialPressure?: number;
+      /**
+       * The plane angle between the Y-Z plane and the plane containing both the stylus axis and the Y axis, in degrees of the range [-90,90], a positive tiltX is to the right (default: 0)
+       */
+      tiltX?: number;
+      /**
+       * The plane angle between the X-Z plane and the plane containing both the stylus axis and the X axis, in degrees of the range [-90,90], a positive tiltY is towards the user (default: 0).
+       */
+      tiltY?: number;
+      /**
+       * The clockwise rotation of a pen stylus around its own major axis, in degrees in the range [0,359] (default: 0).
+       */
+      twist?: number;
+      /**
+       * Identifier used to track touch sources between events, must be unique within an event.
+       */
+      id?: number;
+    }
+    export type GestureSourceType = "default"|"touch"|"mouse";
+    export type MouseButton = "none"|"left"|"middle"|"right"|"back"|"forward";
+    /**
+     * UTC time in seconds, counted from January 1, 1970.
+     */
+    export type TimeSinceEpoch = number;
+    
+    
+    /**
+     * Dispatches a key event to the page.
+     */
+    export type dispatchKeyEventParameters = {
+      /**
+       * Type of the key event.
+       */
+      type: "keyDown"|"keyUp"|"rawKeyDown"|"char";
+      /**
+       * Bit field representing pressed modifier keys. Alt=1, Ctrl=2, Meta/Command=4, Shift=8
+(default: 0).
+       */
+      modifiers?: number;
+      /**
+       * Time at which the event occurred.
+       */
+      timestamp?: TimeSinceEpoch;
+      /**
+       * Text as generated by processing a virtual key code with a keyboard layout. Not needed for
+for `keyUp` and `rawKeyDown` events (default: "")
+       */
+      text?: string;
+      /**
+       * Text that would have been generated by the keyboard if no modifiers were pressed (except for
+shift). Useful for shortcut (accelerator) key handling (default: "").
+       */
+      unmodifiedText?: string;
+      /**
+       * Unique key identifier (e.g., 'U+0041') (default: "").
+       */
+      keyIdentifier?: string;
+      /**
+       * Unique DOM defined string value for each physical key (e.g., 'KeyA') (default: "").
+       */
+      code?: string;
+      /**
+       * Unique DOM defined string value describing the meaning of the key in the context of active
+modifiers, keyboard layout, etc (e.g., 'AltGr') (default: "").
+       */
+      key?: string;
+      /**
+       * Windows virtual key code (default: 0).
+       */
+      windowsVirtualKeyCode?: number;
+      /**
+       * Native virtual key code (default: 0).
+       */
+      nativeVirtualKeyCode?: number;
+      /**
+       * Whether the event was generated from auto repeat (default: false).
+       */
+      autoRepeat?: boolean;
+      /**
+       * Whether the event was generated from the keypad (default: false).
+       */
+      isKeypad?: boolean;
+      /**
+       * Whether the event was a system key event (default: false).
+       */
+      isSystemKey?: boolean;
+      /**
+       * Whether the event was from the left or right side of the keyboard. 1=Left, 2=Right (default:
+0).
+       */
+      location?: number;
+      /**
+       * Editing commands to send with the key event (e.g., 'selectAll') (default: []).
+These are related to but not equal the command names used in `document.execCommand` and NSStandardKeyBindingResponding.
+See https://source.chromium.org/chromium/chromium/src/+/master:third_party/blink/renderer/core/editing/commands/editor_command_names.h for valid command names.
+       */
+      commands?: string[];
+    }
+    export type dispatchKeyEventReturnValue = {
+    }
+    /**
+     * This method emulates inserting text that doesn't come from a key press,
+for example an emoji keyboard or an IME.
+     */
+    export type insertTextParameters = {
+      /**
+       * The text to insert.
+       */
+      text: string;
+    }
+    export type insertTextReturnValue = {
+    }
+    /**
+     * Dispatches a mouse event to the page.
+     */
+    export type dispatchMouseEventParameters = {
+      /**
+       * Type of the mouse event.
+       */
+      type: "mousePressed"|"mouseReleased"|"mouseMoved"|"mouseWheel";
+      /**
+       * X coordinate of the event relative to the main frame's viewport in CSS pixels.
+       */
+      x: number;
+      /**
+       * Y coordinate of the event relative to the main frame's viewport in CSS pixels. 0 refers to
+the top of the viewport and Y increases as it proceeds towards the bottom of the viewport.
+       */
+      y: number;
+      /**
+       * Bit field representing pressed modifier keys. Alt=1, Ctrl=2, Meta/Command=4, Shift=8
+(default: 0).
+       */
+      modifiers?: number;
+      /**
+       * Time at which the event occurred.
+       */
+      timestamp?: TimeSinceEpoch;
+      /**
+       * Mouse button (default: "none").
+       */
+      button?: MouseButton;
+      /**
+       * A number indicating which buttons are pressed on the mouse when a mouse event is triggered.
+Left=1, Right=2, Middle=4, Back=8, Forward=16, None=0.
+       */
+      buttons?: number;
+      /**
+       * Number of times the mouse button was clicked (default: 0).
+       */
+      clickCount?: number;
+      /**
+       * The normalized pressure, which has a range of [0,1] (default: 0).
+       */
+      force?: number;
+      /**
+       * The normalized tangential pressure, which has a range of [-1,1] (default: 0).
+       */
+      tangentialPressure?: number;
+      /**
+       * The plane angle between the Y-Z plane and the plane containing both the stylus axis and the Y axis, in degrees of the range [-90,90], a positive tiltX is to the right (default: 0).
+       */
+      tiltX?: number;
+      /**
+       * The plane angle between the X-Z plane and the plane containing both the stylus axis and the X axis, in degrees of the range [-90,90], a positive tiltY is towards the user (default: 0).
+       */
+      tiltY?: number;
+      /**
+       * The clockwise rotation of a pen stylus around its own major axis, in degrees in the range [0,359] (default: 0).
+       */
+      twist?: number;
+      /**
+       * X delta in CSS pixels for mouse wheel event (default: 0).
+       */
+      deltaX?: number;
+      /**
+       * Y delta in CSS pixels for mouse wheel event (default: 0).
+       */
+      deltaY?: number;
+      /**
+       * Pointer type (default: "mouse").
+       */
+      pointerType?: "mouse"|"pen";
+    }
+    export type dispatchMouseEventReturnValue = {
+    }
+    /**
+     * Dispatches a touch event to the page.
+     */
+    export type dispatchTouchEventParameters = {
+      /**
+       * Type of the touch event. TouchEnd and TouchCancel must not contain any touch points, while
+TouchStart and TouchMove must contains at least one.
+       */
+      type: "touchStart"|"touchEnd"|"touchMove"|"touchCancel";
+      /**
+       * Active touch points on the touch device. One event per any changed point (compared to
+previous touch event in a sequence) is generated, emulating pressing/moving/releasing points
+one by one.
+       */
+      touchPoints: TouchPoint[];
+      /**
+       * Bit field representing pressed modifier keys. Alt=1, Ctrl=2, Meta/Command=4, Shift=8
+(default: 0).
+       */
+      modifiers?: number;
+      /**
+       * Time at which the event occurred.
+       */
+      timestamp?: TimeSinceEpoch;
+    }
+    export type dispatchTouchEventReturnValue = {
+    }
+    /**
+     * Emulates touch event from the mouse event parameters.
+     */
+    export type emulateTouchFromMouseEventParameters = {
+      /**
+       * Type of the mouse event.
+       */
+      type: "mousePressed"|"mouseReleased"|"mouseMoved"|"mouseWheel";
+      /**
+       * X coordinate of the mouse pointer in DIP.
+       */
+      x: number;
+      /**
+       * Y coordinate of the mouse pointer in DIP.
+       */
+      y: number;
+      /**
+       * Mouse button. Only "none", "left", "right" are supported.
+       */
+      button: MouseButton;
+      /**
+       * Time at which the event occurred (default: current time).
+       */
+      timestamp?: TimeSinceEpoch;
+      /**
+       * X delta in DIP for mouse wheel event (default: 0).
+       */
+      deltaX?: number;
+      /**
+       * Y delta in DIP for mouse wheel event (default: 0).
+       */
+      deltaY?: number;
+      /**
+       * Bit field representing pressed modifier keys. Alt=1, Ctrl=2, Meta/Command=4, Shift=8
+(default: 0).
+       */
+      modifiers?: number;
+      /**
+       * Number of times the mouse button was clicked (default: 0).
+       */
+      clickCount?: number;
+    }
+    export type emulateTouchFromMouseEventReturnValue = {
+    }
+    /**
+     * Ignores input events (useful while auditing page).
+     */
+    export type setIgnoreInputEventsParameters = {
+      /**
+       * Ignores input events processing when set to true.
+       */
+      ignore: boolean;
+    }
+    export type setIgnoreInputEventsReturnValue = {
+    }
+    /**
+     * Synthesizes a pinch gesture over a time period by issuing appropriate touch events.
+     */
+    export type synthesizePinchGestureParameters = {
+      /**
+       * X coordinate of the start of the gesture in CSS pixels.
+       */
+      x: number;
+      /**
+       * Y coordinate of the start of the gesture in CSS pixels.
+       */
+      y: number;
+      /**
+       * Relative scale factor after zooming (>1.0 zooms in, <1.0 zooms out).
+       */
+      scaleFactor: number;
+      /**
+       * Relative pointer speed in pixels per second (default: 800).
+       */
+      relativeSpeed?: number;
+      /**
+       * Which type of input events to be generated (default: 'default', which queries the platform
+for the preferred input type).
+       */
+      gestureSourceType?: GestureSourceType;
+    }
+    export type synthesizePinchGestureReturnValue = {
+    }
+    /**
+     * Synthesizes a scroll gesture over a time period by issuing appropriate touch events.
+     */
+    export type synthesizeScrollGestureParameters = {
+      /**
+       * X coordinate of the start of the gesture in CSS pixels.
+       */
+      x: number;
+      /**
+       * Y coordinate of the start of the gesture in CSS pixels.
+       */
+      y: number;
+      /**
+       * The distance to scroll along the X axis (positive to scroll left).
+       */
+      xDistance?: number;
+      /**
+       * The distance to scroll along the Y axis (positive to scroll up).
+       */
+      yDistance?: number;
+      /**
+       * The number of additional pixels to scroll back along the X axis, in addition to the given
+distance.
+       */
+      xOverscroll?: number;
+      /**
+       * The number of additional pixels to scroll back along the Y axis, in addition to the given
+distance.
+       */
+      yOverscroll?: number;
+      /**
+       * Prevent fling (default: true).
+       */
+      preventFling?: boolean;
+      /**
+       * Swipe speed in pixels per second (default: 800).
+       */
+      speed?: number;
+      /**
+       * Which type of input events to be generated (default: 'default', which queries the platform
+for the preferred input type).
+       */
+      gestureSourceType?: GestureSourceType;
+      /**
+       * The number of times to repeat the gesture (default: 0).
+       */
+      repeatCount?: number;
+      /**
+       * The number of milliseconds delay between each repeat. (default: 250).
+       */
+      repeatDelayMs?: number;
+      /**
+       * The name of the interaction markers to generate, if not empty (default: "").
+       */
+      interactionMarkerName?: string;
+    }
+    export type synthesizeScrollGestureReturnValue = {
+    }
+    /**
+     * Synthesizes a tap gesture over a time period by issuing appropriate touch events.
+     */
+    export type synthesizeTapGestureParameters = {
+      /**
+       * X coordinate of the start of the gesture in CSS pixels.
+       */
+      x: number;
+      /**
+       * Y coordinate of the start of the gesture in CSS pixels.
+       */
+      y: number;
+      /**
+       * Duration between touchdown and touchup events in ms (default: 50).
+       */
+      duration?: number;
+      /**
+       * Number of times to perform the tap (e.g. 2 for double tap, default: 1).
+       */
+      tapCount?: number;
+      /**
+       * Which type of input events to be generated (default: 'default', which queries the platform
+for the preferred input type).
+       */
+      gestureSourceType?: GestureSourceType;
+    }
+    export type synthesizeTapGestureReturnValue = {
+    }
+  }
+  
+  export module Inspector {
+    
+    /**
+     * Fired when remote debugging connection is about to be terminated. Contains detach reason.
+     */
+    export type detachedPayload = {
+      /**
+       * The reason why connection has been terminated.
+       */
+      reason: string;
+    }
+    /**
+     * Fired when debugging target has crashed
+     */
+    export type targetCrashedPayload = void;
+    /**
+     * Fired when debugging target has reloaded after crash
+     */
+    export type targetReloadedAfterCrashPayload = void;
+    
+    /**
+     * Disables inspector domain notifications.
+     */
+    export type disableParameters = {
+    }
+    export type disableReturnValue = {
+    }
+    /**
+     * Enables inspector domain notifications.
+     */
+    export type enableParameters = {
+    }
+    export type enableReturnValue = {
+    }
+  }
+  
+  export module LayerTree {
+    /**
+     * Unique Layer identifier.
+     */
+    export type LayerId = string;
+    /**
+     * Unique snapshot identifier.
+     */
+    export type SnapshotId = string;
+    /**
+     * Rectangle where scrolling happens on the main thread.
+     */
+    export interface ScrollRect {
+      /**
+       * Rectangle itself.
+       */
+      rect: DOM.Rect;
+      /**
+       * Reason for rectangle to force scrolling on the main thread
+       */
+      type: "RepaintsOnScroll"|"TouchEventHandler"|"WheelEventHandler";
+    }
+    /**
+     * Sticky position constraints.
+     */
+    export interface StickyPositionConstraint {
+      /**
+       * Layout rectangle of the sticky element before being shifted
+       */
+      stickyBoxRect: DOM.Rect;
+      /**
+       * Layout rectangle of the containing block of the sticky element
+       */
+      containingBlockRect: DOM.Rect;
+      /**
+       * The nearest sticky layer that shifts the sticky box
+       */
+      nearestLayerShiftingStickyBox?: LayerId;
+      /**
+       * The nearest sticky layer that shifts the containing block
+       */
+      nearestLayerShiftingContainingBlock?: LayerId;
+    }
+    /**
+     * Serialized fragment of layer picture along with its offset within the layer.
+     */
+    export interface PictureTile {
+      /**
+       * Offset from owning layer left boundary
+       */
+      x: number;
+      /**
+       * Offset from owning layer top boundary
+       */
+      y: number;
+      /**
+       * Base64-encoded snapshot data.
+       */
+      picture: binary;
+    }
+    /**
+     * Information about a compositing layer.
+     */
+    export interface Layer {
+      /**
+       * The unique id for this layer.
+       */
+      layerId: LayerId;
+      /**
+       * The id of parent (not present for root).
+       */
+      parentLayerId?: LayerId;
+      /**
+       * The backend id for the node associated with this layer.
+       */
+      backendNodeId?: DOM.BackendNodeId;
+      /**
+       * Offset from parent layer, X coordinate.
+       */
+      offsetX: number;
+      /**
+       * Offset from parent layer, Y coordinate.
+       */
+      offsetY: number;
+      /**
+       * Layer width.
+       */
+      width: number;
+      /**
+       * Layer height.
+       */
+      height: number;
+      /**
+       * Transformation matrix for layer, default is identity matrix
+       */
+      transform?: number[];
+      /**
+       * Transform anchor point X, absent if no transform specified
+       */
+      anchorX?: number;
+      /**
+       * Transform anchor point Y, absent if no transform specified
+       */
+      anchorY?: number;
+      /**
+       * Transform anchor point Z, absent if no transform specified
+       */
+      anchorZ?: number;
+      /**
+       * Indicates how many time this layer has painted.
+       */
+      paintCount: number;
+      /**
+       * Indicates whether this layer hosts any content, rather than being used for
+transform/scrolling purposes only.
+       */
+      drawsContent: boolean;
+      /**
+       * Set if layer is not visible.
+       */
+      invisible?: boolean;
+      /**
+       * Rectangles scrolling on main thread only.
+       */
+      scrollRects?: ScrollRect[];
+      /**
+       * Sticky position constraint information
+       */
+      stickyPositionConstraint?: StickyPositionConstraint;
+    }
+    /**
+     * Array of timings, one per paint step.
+     */
+    export type PaintProfile = number[];
+    
+    export type layerPaintedPayload = {
+      /**
+       * The id of the painted layer.
+       */
+      layerId: LayerId;
+      /**
+       * Clip rectangle.
+       */
+      clip: DOM.Rect;
+    }
+    export type layerTreeDidChangePayload = {
+      /**
+       * Layer tree, absent if not in the comspositing mode.
+       */
+      layers?: Layer[];
+    }
+    
+    /**
+     * Provides the reasons why the given layer was composited.
+     */
+    export type compositingReasonsParameters = {
+      /**
+       * The id of the layer for which we want to get the reasons it was composited.
+       */
+      layerId: LayerId;
+    }
+    export type compositingReasonsReturnValue = {
+      /**
+       * A list of strings specifying reasons for the given layer to become composited.
+       */
+      compositingReasons: string[];
+      /**
+       * A list of strings specifying reason IDs for the given layer to become composited.
+       */
+      compositingReasonIds: string[];
+    }
+    /**
+     * Disables compositing tree inspection.
+     */
+    export type disableParameters = {
+    }
+    export type disableReturnValue = {
+    }
+    /**
+     * Enables compositing tree inspection.
+     */
+    export type enableParameters = {
+    }
+    export type enableReturnValue = {
+    }
+    /**
+     * Returns the snapshot identifier.
+     */
+    export type loadSnapshotParameters = {
+      /**
+       * An array of tiles composing the snapshot.
+       */
+      tiles: PictureTile[];
+    }
+    export type loadSnapshotReturnValue = {
+      /**
+       * The id of the snapshot.
+       */
+      snapshotId: SnapshotId;
+    }
+    /**
+     * Returns the layer snapshot identifier.
+     */
+    export type makeSnapshotParameters = {
+      /**
+       * The id of the layer.
+       */
+      layerId: LayerId;
+    }
+    export type makeSnapshotReturnValue = {
+      /**
+       * The id of the layer snapshot.
+       */
+      snapshotId: SnapshotId;
+    }
+    export type profileSnapshotParameters = {
+      /**
+       * The id of the layer snapshot.
+       */
+      snapshotId: SnapshotId;
+      /**
+       * The maximum number of times to replay the snapshot (1, if not specified).
+       */
+      minRepeatCount?: number;
+      /**
+       * The minimum duration (in seconds) to replay the snapshot.
+       */
+      minDuration?: number;
+      /**
+       * The clip rectangle to apply when replaying the snapshot.
+       */
+      clipRect?: DOM.Rect;
+    }
+    export type profileSnapshotReturnValue = {
+      /**
+       * The array of paint profiles, one per run.
+       */
+      timings: PaintProfile[];
+    }
+    /**
+     * Releases layer snapshot captured by the back-end.
+     */
+    export type releaseSnapshotParameters = {
+      /**
+       * The id of the layer snapshot.
+       */
+      snapshotId: SnapshotId;
+    }
+    export type releaseSnapshotReturnValue = {
+    }
+    /**
+     * Replays the layer snapshot and returns the resulting bitmap.
+     */
+    export type replaySnapshotParameters = {
+      /**
+       * The id of the layer snapshot.
+       */
+      snapshotId: SnapshotId;
+      /**
+       * The first step to replay from (replay from the very start if not specified).
+       */
+      fromStep?: number;
+      /**
+       * The last step to replay to (replay till the end if not specified).
+       */
+      toStep?: number;
+      /**
+       * The scale to apply while replaying (defaults to 1).
+       */
+      scale?: number;
+    }
+    export type replaySnapshotReturnValue = {
+      /**
+       * A data: URL for resulting image.
+       */
+      dataURL: string;
+    }
+    /**
+     * Replays the layer snapshot and returns canvas log.
+     */
+    export type snapshotCommandLogParameters = {
+      /**
+       * The id of the layer snapshot.
+       */
+      snapshotId: SnapshotId;
+    }
+    export type snapshotCommandLogReturnValue = {
+      /**
+       * The array of canvas function calls.
+       */
+      commandLog: { [key: string]: string }[];
+    }
+  }
+  
+  /**
+   * Provides access to log entries.
+   */
+  export module Log {
+    /**
+     * Log entry.
+     */
+    export interface LogEntry {
+      /**
+       * Log entry source.
+       */
+      source: "xml"|"javascript"|"network"|"storage"|"appcache"|"rendering"|"security"|"deprecation"|"worker"|"violation"|"intervention"|"recommendation"|"other";
+      /**
+       * Log entry severity.
+       */
+      level: "verbose"|"info"|"warning"|"error";
+      /**
+       * Logged text.
+       */
+      text: string;
+      /**
+       * Timestamp when this entry was added.
+       */
+      timestamp: Runtime.Timestamp;
+      /**
+       * URL of the resource if known.
+       */
+      url?: string;
+      /**
+       * Line number in the resource.
+       */
+      lineNumber?: number;
+      /**
+       * JavaScript stack trace.
+       */
+      stackTrace?: Runtime.StackTrace;
+      /**
+       * Identifier of the network request associated with this entry.
+       */
+      networkRequestId?: Network.RequestId;
+      /**
+       * Identifier of the worker associated with this entry.
+       */
+      workerId?: string;
+      /**
+       * Call arguments.
+       */
+      args?: Runtime.RemoteObject[];
+    }
+    /**
+     * Violation configuration setting.
+     */
+    export interface ViolationSetting {
+      /**
+       * Violation type.
+       */
+      name: "longTask"|"longLayout"|"blockedEvent"|"blockedParser"|"discouragedAPIUse"|"handler"|"recurringHandler";
+      /**
+       * Time threshold to trigger upon.
+       */
+      threshold: number;
+    }
+    
+    /**
+     * Issued when new message was logged.
+     */
+    export type entryAddedPayload = {
+      /**
+       * The entry.
+       */
+      entry: LogEntry;
+    }
+    
+    /**
+     * Clears the log.
+     */
+    export type clearParameters = {
+    }
+    export type clearReturnValue = {
+    }
+    /**
+     * Disables log domain, prevents further log entries from being reported to the client.
+     */
+    export type disableParameters = {
+    }
+    export type disableReturnValue = {
+    }
+    /**
+     * Enables log domain, sends the entries collected so far to the client by means of the
+`entryAdded` notification.
+     */
+    export type enableParameters = {
+    }
+    export type enableReturnValue = {
+    }
+    /**
+     * start violation reporting.
+     */
+    export type startViolationsReportParameters = {
+      /**
+       * Configuration for violations.
+       */
+      config: ViolationSetting[];
+    }
+    export type startViolationsReportReturnValue = {
+    }
+    /**
+     * Stop violation reporting.
+     */
+    export type stopViolationsReportParameters = {
+    }
+    export type stopViolationsReportReturnValue = {
+    }
+  }
+  
+  export module Memory {
+    /**
+     * Memory pressure level.
+     */
+    export type PressureLevel = "moderate"|"critical";
+    /**
+     * Heap profile sample.
+     */
+    export interface SamplingProfileNode {
+      /**
+       * Size of the sampled allocation.
+       */
+      size: number;
+      /**
+       * Total bytes attributed to this sample.
+       */
+      total: number;
+      /**
+       * Execution stack at the point of allocation.
+       */
+      stack: string[];
+    }
+    /**
+     * Array of heap profile samples.
+     */
+    export interface SamplingProfile {
+      samples: SamplingProfileNode[];
+      modules: Module[];
+    }
+    /**
+     * Executable module information
+     */
+    export interface Module {
+      /**
+       * Name of the module.
+       */
+      name: string;
+      /**
+       * UUID of the module.
+       */
+      uuid: string;
+      /**
+       * Base address where the module is loaded into memory. Encoded as a decimal
+or hexadecimal (0x prefixed) string.
+       */
+      baseAddress: string;
+      /**
+       * Size of the module in bytes.
+       */
+      size: number;
+    }
+    
+    
+    export type getDOMCountersParameters = {
+    }
+    export type getDOMCountersReturnValue = {
+      documents: number;
+      nodes: number;
+      jsEventListeners: number;
+    }
+    export type prepareForLeakDetectionParameters = {
+    }
+    export type prepareForLeakDetectionReturnValue = {
+    }
+    /**
+     * Simulate OomIntervention by purging V8 memory.
+     */
+    export type forciblyPurgeJavaScriptMemoryParameters = {
+    }
+    export type forciblyPurgeJavaScriptMemoryReturnValue = {
+    }
+    /**
+     * Enable/disable suppressing memory pressure notifications in all processes.
+     */
+    export type setPressureNotificationsSuppressedParameters = {
+      /**
+       * If true, memory pressure notifications will be suppressed.
+       */
+      suppressed: boolean;
+    }
+    export type setPressureNotificationsSuppressedReturnValue = {
+    }
+    /**
+     * Simulate a memory pressure notification in all processes.
+     */
+    export type simulatePressureNotificationParameters = {
+      /**
+       * Memory pressure level of the notification.
+       */
+      level: PressureLevel;
+    }
+    export type simulatePressureNotificationReturnValue = {
+    }
+    /**
+     * Start collecting native memory profile.
+     */
+    export type startSamplingParameters = {
+      /**
+       * Average number of bytes between samples.
+       */
+      samplingInterval?: number;
+      /**
+       * Do not randomize intervals between samples.
+       */
+      suppressRandomness?: boolean;
+    }
+    export type startSamplingReturnValue = {
+    }
+    /**
+     * Stop collecting native memory profile.
+     */
+    export type stopSamplingParameters = {
+    }
+    export type stopSamplingReturnValue = {
+    }
+    /**
+     * Retrieve native memory allocations profile
+collected since renderer process startup.
+     */
+    export type getAllTimeSamplingProfileParameters = {
+    }
+    export type getAllTimeSamplingProfileReturnValue = {
+      profile: SamplingProfile;
+    }
+    /**
+     * Retrieve native memory allocations profile
+collected since browser process startup.
+     */
+    export type getBrowserSamplingProfileParameters = {
+    }
+    export type getBrowserSamplingProfileReturnValue = {
+      profile: SamplingProfile;
+    }
+    /**
+     * Retrieve native memory allocations profile collected since last
+`startSampling` call.
+     */
+    export type getSamplingProfileParameters = {
+    }
+    export type getSamplingProfileReturnValue = {
+      profile: SamplingProfile;
+    }
+  }
+  
+  /**
+   * Network domain allows tracking network activities of the page. It exposes information about http,
+file, data and other requests and responses, their headers, bodies, timing, etc.
+   */
+  export module Network {
+    /**
+     * Resource type as it was perceived by the rendering engine.
+     */
+    export type ResourceType = "Document"|"Stylesheet"|"Image"|"Media"|"Font"|"Script"|"TextTrack"|"XHR"|"Fetch"|"EventSource"|"WebSocket"|"Manifest"|"SignedExchange"|"Ping"|"CSPViolationReport"|"Preflight"|"Other";
+    /**
+     * Unique loader identifier.
+     */
+    export type LoaderId = string;
+    /**
+     * Unique request identifier.
+     */
+    export type RequestId = string;
+    /**
+     * Unique intercepted request identifier.
+     */
+    export type InterceptionId = string;
+    /**
+     * Network level fetch failure reason.
+     */
+    export type ErrorReason = "Failed"|"Aborted"|"TimedOut"|"AccessDenied"|"ConnectionClosed"|"ConnectionReset"|"ConnectionRefused"|"ConnectionAborted"|"ConnectionFailed"|"NameNotResolved"|"InternetDisconnected"|"AddressUnreachable"|"BlockedByClient"|"BlockedByResponse";
+    /**
+     * UTC time in seconds, counted from January 1, 1970.
+     */
+    export type TimeSinceEpoch = number;
+    /**
+     * Monotonically increasing time in seconds since an arbitrary point in the past.
+     */
+    export type MonotonicTime = number;
+    /**
+     * Request / response headers as keys / values of JSON object.
+     */
+    export type Headers = { [key: string]: string };
+    /**
+     * The underlying connection technology that the browser is supposedly using.
+     */
+    export type ConnectionType = "none"|"cellular2g"|"cellular3g"|"cellular4g"|"bluetooth"|"ethernet"|"wifi"|"wimax"|"other";
+    /**
+     * Represents the cookie's 'SameSite' status:
+https://tools.ietf.org/html/draft-west-first-party-cookies
+     */
+    export type CookieSameSite = "Strict"|"Lax"|"None";
+    /**
+     * Represents the cookie's 'Priority' status:
+https://tools.ietf.org/html/draft-west-cookie-priority-00
+     */
+    export type CookiePriority = "Low"|"Medium"|"High";
+    /**
+     * Timing information for the request.
+     */
+    export interface ResourceTiming {
+      /**
+       * Timing's requestTime is a baseline in seconds, while the other numbers are ticks in
+milliseconds relatively to this requestTime.
+       */
+      requestTime: number;
+      /**
+       * Started resolving proxy.
+       */
+      proxyStart: number;
+      /**
+       * Finished resolving proxy.
+       */
+      proxyEnd: number;
+      /**
+       * Started DNS address resolve.
+       */
+      dnsStart: number;
+      /**
+       * Finished DNS address resolve.
+       */
+      dnsEnd: number;
+      /**
+       * Started connecting to the remote host.
+       */
+      connectStart: number;
+      /**
+       * Connected to the remote host.
+       */
+      connectEnd: number;
+      /**
+       * Started SSL handshake.
+       */
+      sslStart: number;
+      /**
+       * Finished SSL handshake.
+       */
+      sslEnd: number;
+      /**
+       * Started running ServiceWorker.
+       */
+      workerStart: number;
+      /**
+       * Finished Starting ServiceWorker.
+       */
+      workerReady: number;
+      /**
+       * Started fetch event.
+       */
+      workerFetchStart: number;
+      /**
+       * Settled fetch event respondWith promise.
+       */
+      workerRespondWithSettled: number;
+      /**
+       * Started sending request.
+       */
+      sendStart: number;
+      /**
+       * Finished sending request.
+       */
+      sendEnd: number;
+      /**
+       * Time the server started pushing request.
+       */
+      pushStart: number;
+      /**
+       * Time the server finished pushing request.
+       */
+      pushEnd: number;
+      /**
+       * Finished receiving response headers.
+       */
+      receiveHeadersEnd: number;
+    }
+    /**
+     * Loading priority of a resource request.
+     */
+    export type ResourcePriority = "VeryLow"|"Low"|"Medium"|"High"|"VeryHigh";
+    /**
+     * Post data entry for HTTP request
+     */
+    export interface PostDataEntry {
+      bytes?: binary;
+    }
+    /**
+     * HTTP request data.
+     */
+    export interface Request {
+      /**
+       * Request URL (without fragment).
+       */
+      url: string;
+      /**
+       * Fragment of the requested URL starting with hash, if present.
+       */
+      urlFragment?: string;
+      /**
+       * HTTP request method.
+       */
+      method: string;
+      /**
+       * HTTP request headers.
+       */
+      headers: Headers;
+      /**
+       * HTTP POST request data.
+       */
+      postData?: string;
+      /**
+       * True when the request has POST data. Note that postData might still be omitted when this flag is true when the data is too long.
+       */
+      hasPostData?: boolean;
+      /**
+       * Request body elements. This will be converted from base64 to binary
+       */
+      postDataEntries?: PostDataEntry[];
+      /**
+       * The mixed content type of the request.
+       */
+      mixedContentType?: Security.MixedContentType;
+      /**
+       * Priority of the resource request at the time request is sent.
+       */
+      initialPriority: ResourcePriority;
+      /**
+       * The referrer policy of the request, as defined in https://www.w3.org/TR/referrer-policy/
+       */
+      referrerPolicy: "unsafe-url"|"no-referrer-when-downgrade"|"no-referrer"|"origin"|"origin-when-cross-origin"|"same-origin"|"strict-origin"|"strict-origin-when-cross-origin";
+      /**
+       * Whether is loaded via link preload.
+       */
+      isLinkPreload?: boolean;
+      /**
+       * Set for requests when the TrustToken API is used. Contains the parameters
+passed by the developer (e.g. via "fetch") as understood by the backend.
+       */
+      trustTokenParams?: TrustTokenParams;
+    }
+    /**
+     * Details of a signed certificate timestamp (SCT).
+     */
+    export interface SignedCertificateTimestamp {
+      /**
+       * Validation status.
+       */
+      status: string;
+      /**
+       * Origin.
+       */
+      origin: string;
+      /**
+       * Log name / description.
+       */
+      logDescription: string;
+      /**
+       * Log ID.
+       */
+      logId: string;
+      /**
+       * Issuance date.
+       */
+      timestamp: TimeSinceEpoch;
+      /**
+       * Hash algorithm.
+       */
+      hashAlgorithm: string;
+      /**
+       * Signature algorithm.
+       */
+      signatureAlgorithm: string;
+      /**
+       * Signature data.
+       */
+      signatureData: string;
+    }
+    /**
+     * Security details about a request.
+     */
+    export interface SecurityDetails {
+      /**
+       * Protocol name (e.g. "TLS 1.2" or "QUIC").
+       */
+      protocol: string;
+      /**
+       * Key Exchange used by the connection, or the empty string if not applicable.
+       */
+      keyExchange: string;
+      /**
+       * (EC)DH group used by the connection, if applicable.
+       */
+      keyExchangeGroup?: string;
+      /**
+       * Cipher name.
+       */
+      cipher: string;
+      /**
+       * TLS MAC. Note that AEAD ciphers do not have separate MACs.
+       */
+      mac?: string;
+      /**
+       * Certificate ID value.
+       */
+      certificateId: Security.CertificateId;
+      /**
+       * Certificate subject name.
+       */
+      subjectName: string;
+      /**
+       * Subject Alternative Name (SAN) DNS names and IP addresses.
+       */
+      sanList: string[];
+      /**
+       * Name of the issuing CA.
+       */
+      issuer: string;
+      /**
+       * Certificate valid from date.
+       */
+      validFrom: TimeSinceEpoch;
+      /**
+       * Certificate valid to (expiration) date
+       */
+      validTo: TimeSinceEpoch;
+      /**
+       * List of signed certificate timestamps (SCTs).
+       */
+      signedCertificateTimestampList: SignedCertificateTimestamp[];
+      /**
+       * Whether the request complied with Certificate Transparency policy
+       */
+      certificateTransparencyCompliance: CertificateTransparencyCompliance;
+    }
+    /**
+     * Whether the request complied with Certificate Transparency policy.
+     */
+    export type CertificateTransparencyCompliance = "unknown"|"not-compliant"|"compliant";
+    /**
+     * The reason why request was blocked.
+     */
+    export type BlockedReason = "other"|"csp"|"mixed-content"|"origin"|"inspector"|"subresource-filter"|"content-type"|"collapsed-by-client"|"coep-frame-resource-needs-coep-header"|"coop-sandboxed-iframe-cannot-navigate-to-coop-page"|"corp-not-same-origin"|"corp-not-same-origin-after-defaulted-to-same-origin-by-coep"|"corp-not-same-site";
+    /**
+     * The reason why request was blocked.
+     */
+    export type CorsError = "DisallowedByMode"|"InvalidResponse"|"WildcardOriginNotAllowed"|"MissingAllowOriginHeader"|"MultipleAllowOriginValues"|"InvalidAllowOriginValue"|"AllowOriginMismatch"|"InvalidAllowCredentials"|"CorsDisabledScheme"|"PreflightInvalidStatus"|"PreflightDisallowedRedirect"|"PreflightWildcardOriginNotAllowed"|"PreflightMissingAllowOriginHeader"|"PreflightMultipleAllowOriginValues"|"PreflightInvalidAllowOriginValue"|"PreflightAllowOriginMismatch"|"PreflightInvalidAllowCredentials"|"PreflightMissingAllowExternal"|"PreflightInvalidAllowExternal"|"InvalidAllowMethodsPreflightResponse"|"InvalidAllowHeadersPreflightResponse"|"MethodDisallowedByPreflightResponse"|"HeaderDisallowedByPreflightResponse"|"RedirectContainsCredentials"|"InsecurePrivateNetwork";
+    export interface CorsErrorStatus {
+      corsError: CorsError;
+      failedParameter: string;
+    }
+    /**
+     * Source of serviceworker response.
+     */
+    export type ServiceWorkerResponseSource = "cache-storage"|"http-cache"|"fallback-code"|"network";
+    /**
+     * Determines what type of Trust Token operation is executed and
+depending on the type, some additional parameters. The values
+are specified in third_party/blink/renderer/core/fetch/trust_token.idl.
+     */
+    export interface TrustTokenParams {
+      type: TrustTokenOperationType;
+      /**
+       * Only set for "token-redemption" type and determine whether
+to request a fresh SRR or use a still valid cached SRR.
+       */
+      refreshPolicy: "UseCached"|"Refresh";
+      /**
+       * Origins of issuers from whom to request tokens or redemption
+records.
+       */
+      issuers?: string[];
+    }
+    export type TrustTokenOperationType = "Issuance"|"Redemption"|"Signing";
+    /**
+     * HTTP response data.
+     */
+    export interface Response {
+      /**
+       * Response URL. This URL can be different from CachedResource.url in case of redirect.
+       */
+      url: string;
+      /**
+       * HTTP response status code.
+       */
+      status: number;
+      /**
+       * HTTP response status text.
+       */
+      statusText: string;
+      /**
+       * HTTP response headers.
+       */
+      headers: Headers;
+      /**
+       * HTTP response headers text.
+       */
+      headersText?: string;
+      /**
+       * Resource mimeType as determined by the browser.
+       */
+      mimeType: string;
+      /**
+       * Refined HTTP request headers that were actually transmitted over the network.
+       */
+      requestHeaders?: Headers;
+      /**
+       * HTTP request headers text.
+       */
+      requestHeadersText?: string;
+      /**
+       * Specifies whether physical connection was actually reused for this request.
+       */
+      connectionReused: boolean;
+      /**
+       * Physical connection id that was actually used for this request.
+       */
+      connectionId: number;
+      /**
+       * Remote IP address.
+       */
+      remoteIPAddress?: string;
+      /**
+       * Remote port.
+       */
+      remotePort?: number;
+      /**
+       * Specifies that the request was served from the disk cache.
+       */
+      fromDiskCache?: boolean;
+      /**
+       * Specifies that the request was served from the ServiceWorker.
+       */
+      fromServiceWorker?: boolean;
+      /**
+       * Specifies that the request was served from the prefetch cache.
+       */
+      fromPrefetchCache?: boolean;
+      /**
+       * Total number of bytes received for this request so far.
+       */
+      encodedDataLength: number;
+      /**
+       * Timing information for the given request.
+       */
+      timing?: ResourceTiming;
+      /**
+       * Response source of response from ServiceWorker.
+       */
+      serviceWorkerResponseSource?: ServiceWorkerResponseSource;
+      /**
+       * The time at which the returned response was generated.
+       */
+      responseTime?: TimeSinceEpoch;
+      /**
+       * Cache Storage Cache Name.
+       */
+      cacheStorageCacheName?: string;
+      /**
+       * Protocol used to fetch this request.
+       */
+      protocol?: string;
+      /**
+       * Security state of the request resource.
+       */
+      securityState: Security.SecurityState;
+      /**
+       * Security details for the request.
+       */
+      securityDetails?: SecurityDetails;
+    }
+    /**
+     * WebSocket request data.
+     */
+    export interface WebSocketRequest {
+      /**
+       * HTTP request headers.
+       */
+      headers: Headers;
+    }
+    /**
+     * WebSocket response data.
+     */
+    export interface WebSocketResponse {
+      /**
+       * HTTP response status code.
+       */
+      status: number;
+      /**
+       * HTTP response status text.
+       */
+      statusText: string;
+      /**
+       * HTTP response headers.
+       */
+      headers: Headers;
+      /**
+       * HTTP response headers text.
+       */
+      headersText?: string;
+      /**
+       * HTTP request headers.
+       */
+      requestHeaders?: Headers;
+      /**
+       * HTTP request headers text.
+       */
+      requestHeadersText?: string;
+    }
+    /**
+     * WebSocket message data. This represents an entire WebSocket message, not just a fragmented frame as the name suggests.
+     */
+    export interface WebSocketFrame {
+      /**
+       * WebSocket message opcode.
+       */
+      opcode: number;
+      /**
+       * WebSocket message mask.
+       */
+      mask: boolean;
+      /**
+       * WebSocket message payload data.
+If the opcode is 1, this is a text message and payloadData is a UTF-8 string.
+If the opcode isn't 1, then payloadData is a base64 encoded string representing binary data.
+       */
+      payloadData: string;
+    }
+    /**
+     * Information about the cached resource.
+     */
+    export interface CachedResource {
+      /**
+       * Resource URL. This is the url of the original network request.
+       */
+      url: string;
+      /**
+       * Type of this resource.
+       */
+      type: ResourceType;
+      /**
+       * Cached response data.
+       */
+      response?: Response;
+      /**
+       * Cached response body size.
+       */
+      bodySize: number;
+    }
+    /**
+     * Information about the request initiator.
+     */
+    export interface Initiator {
+      /**
+       * Type of this initiator.
+       */
+      type: "parser"|"script"|"preload"|"SignedExchange"|"preflight"|"other";
+      /**
+       * Initiator JavaScript stack trace, set for Script only.
+       */
+      stack?: Runtime.StackTrace;
+      /**
+       * Initiator URL, set for Parser type or for Script type (when script is importing module) or for SignedExchange type.
+       */
+      url?: string;
+      /**
+       * Initiator line number, set for Parser type or for Script type (when script is importing
+module) (0-based).
+       */
+      lineNumber?: number;
+      /**
+       * Initiator column number, set for Parser type or for Script type (when script is importing
+module) (0-based).
+       */
+      columnNumber?: number;
+      /**
+       * Set if another request triggered this request (e.g. preflight).
+       */
+      requestId?: RequestId;
+    }
+    /**
+     * Cookie object
+     */
+    export interface Cookie {
+      /**
+       * Cookie name.
+       */
+      name: string;
+      /**
+       * Cookie value.
+       */
+      value: string;
+      /**
+       * Cookie domain.
+       */
+      domain: string;
+      /**
+       * Cookie path.
+       */
+      path: string;
+      /**
+       * Cookie expiration date as the number of seconds since the UNIX epoch.
+       */
+      expires: number;
+      /**
+       * Cookie size.
+       */
+      size: number;
+      /**
+       * True if cookie is http-only.
+       */
+      httpOnly: boolean;
+      /**
+       * True if cookie is secure.
+       */
+      secure: boolean;
+      /**
+       * True in case of session cookie.
+       */
+      session: boolean;
+      /**
+       * Cookie SameSite type.
+       */
+      sameSite?: CookieSameSite;
+      /**
+       * Cookie Priority
+       */
+      priority: CookiePriority;
+    }
+    /**
+     * Types of reasons why a cookie may not be stored from a response.
+     */
+    export type SetCookieBlockedReason = "SecureOnly"|"SameSiteStrict"|"SameSiteLax"|"SameSiteUnspecifiedTreatedAsLax"|"SameSiteNoneInsecure"|"UserPreferences"|"SyntaxError"|"SchemeNotSupported"|"OverwriteSecure"|"InvalidDomain"|"InvalidPrefix"|"UnknownError"|"SchemefulSameSiteStrict"|"SchemefulSameSiteLax"|"SchemefulSameSiteUnspecifiedTreatedAsLax";
+    /**
+     * Types of reasons why a cookie may not be sent with a request.
+     */
+    export type CookieBlockedReason = "SecureOnly"|"NotOnPath"|"DomainMismatch"|"SameSiteStrict"|"SameSiteLax"|"SameSiteUnspecifiedTreatedAsLax"|"SameSiteNoneInsecure"|"UserPreferences"|"UnknownError"|"SchemefulSameSiteStrict"|"SchemefulSameSiteLax"|"SchemefulSameSiteUnspecifiedTreatedAsLax";
+    /**
+     * A cookie which was not stored from a response with the corresponding reason.
+     */
+    export interface BlockedSetCookieWithReason {
+      /**
+       * The reason(s) this cookie was blocked.
+       */
+      blockedReasons: SetCookieBlockedReason[];
+      /**
+       * The string representing this individual cookie as it would appear in the header.
+This is not the entire "cookie" or "set-cookie" header which could have multiple cookies.
+       */
+      cookieLine: string;
+      /**
+       * The cookie object which represents the cookie which was not stored. It is optional because
+sometimes complete cookie information is not available, such as in the case of parsing
+errors.
+       */
+      cookie?: Cookie;
+    }
+    /**
+     * A cookie with was not sent with a request with the corresponding reason.
+     */
+    export interface BlockedCookieWithReason {
+      /**
+       * The reason(s) the cookie was blocked.
+       */
+      blockedReasons: CookieBlockedReason[];
+      /**
+       * The cookie object representing the cookie which was not sent.
+       */
+      cookie: Cookie;
+    }
+    /**
+     * Cookie parameter object
+     */
+    export interface CookieParam {
+      /**
+       * Cookie name.
+       */
+      name: string;
+      /**
+       * Cookie value.
+       */
+      value: string;
+      /**
+       * The request-URI to associate with the setting of the cookie. This value can affect the
+default domain and path values of the created cookie.
+       */
+      url?: string;
+      /**
+       * Cookie domain.
+       */
+      domain?: string;
+      /**
+       * Cookie path.
+       */
+      path?: string;
+      /**
+       * True if cookie is secure.
+       */
+      secure?: boolean;
+      /**
+       * True if cookie is http-only.
+       */
+      httpOnly?: boolean;
+      /**
+       * Cookie SameSite type.
+       */
+      sameSite?: CookieSameSite;
+      /**
+       * Cookie expiration date, session cookie if not set
+       */
+      expires?: TimeSinceEpoch;
+      /**
+       * Cookie Priority.
+       */
+      priority?: CookiePriority;
+    }
+    /**
+     * Authorization challenge for HTTP status code 401 or 407.
+     */
+    export interface AuthChallenge {
+      /**
+       * Source of the authentication challenge.
+       */
+      source?: "Server"|"Proxy";
+      /**
+       * Origin of the challenger.
+       */
+      origin: string;
+      /**
+       * The authentication scheme used, such as basic or digest
+       */
+      scheme: string;
+      /**
+       * The realm of the challenge. May be empty.
+       */
+      realm: string;
+    }
+    /**
+     * Response to an AuthChallenge.
+     */
+    export interface AuthChallengeResponse {
+      /**
+       * The decision on what to do in response to the authorization challenge.  Default means
+deferring to the default behavior of the net stack, which will likely either the Cancel
+authentication or display a popup dialog box.
+       */
+      response: "Default"|"CancelAuth"|"ProvideCredentials";
+      /**
+       * The username to provide, possibly empty. Should only be set if response is
+ProvideCredentials.
+       */
+      username?: string;
+      /**
+       * The password to provide, possibly empty. Should only be set if response is
+ProvideCredentials.
+       */
+      password?: string;
+    }
+    /**
+     * Stages of the interception to begin intercepting. Request will intercept before the request is
+sent. Response will intercept after the response is received.
+     */
+    export type InterceptionStage = "Request"|"HeadersReceived";
+    /**
+     * Request pattern for interception.
+     */
+    export interface RequestPattern {
+      /**
+       * Wildcards ('*' -> zero or more, '?' -> exactly one) are allowed. Escape character is
+backslash. Omitting is equivalent to "*".
+       */
+      urlPattern?: string;
+      /**
+       * If set, only requests for matching resource types will be intercepted.
+       */
+      resourceType?: ResourceType;
+      /**
+       * Stage at wich to begin intercepting requests. Default is Request.
+       */
+      interceptionStage?: InterceptionStage;
+    }
+    /**
+     * Information about a signed exchange signature.
+https://wicg.github.io/webpackage/draft-yasskin-httpbis-origin-signed-exchanges-impl.html#rfc.section.3.1
+     */
+    export interface SignedExchangeSignature {
+      /**
+       * Signed exchange signature label.
+       */
+      label: string;
+      /**
+       * The hex string of signed exchange signature.
+       */
+      signature: string;
+      /**
+       * Signed exchange signature integrity.
+       */
+      integrity: string;
+      /**
+       * Signed exchange signature cert Url.
+       */
+      certUrl?: string;
+      /**
+       * The hex string of signed exchange signature cert sha256.
+       */
+      certSha256?: string;
+      /**
+       * Signed exchange signature validity Url.
+       */
+      validityUrl: string;
+      /**
+       * Signed exchange signature date.
+       */
+      date: number;
+      /**
+       * Signed exchange signature expires.
+       */
+      expires: number;
+      /**
+       * The encoded certificates.
+       */
+      certificates?: string[];
+    }
+    /**
+     * Information about a signed exchange header.
+https://wicg.github.io/webpackage/draft-yasskin-httpbis-origin-signed-exchanges-impl.html#cbor-representation
+     */
+    export interface SignedExchangeHeader {
+      /**
+       * Signed exchange request URL.
+       */
+      requestUrl: string;
+      /**
+       * Signed exchange response code.
+       */
+      responseCode: number;
+      /**
+       * Signed exchange response headers.
+       */
+      responseHeaders: Headers;
+      /**
+       * Signed exchange response signature.
+       */
+      signatures: SignedExchangeSignature[];
+      /**
+       * Signed exchange header integrity hash in the form of "sha256-<base64-hash-value>".
+       */
+      headerIntegrity: string;
+    }
+    /**
+     * Field type for a signed exchange related error.
+     */
+    export type SignedExchangeErrorField = "signatureSig"|"signatureIntegrity"|"signatureCertUrl"|"signatureCertSha256"|"signatureValidityUrl"|"signatureTimestamps";
+    /**
+     * Information about a signed exchange response.
+     */
+    export interface SignedExchangeError {
+      /**
+       * Error message.
+       */
+      message: string;
+      /**
+       * The index of the signature which caused the error.
+       */
+      signatureIndex?: number;
+      /**
+       * The field which caused the error.
+       */
+      errorField?: SignedExchangeErrorField;
+    }
+    /**
+     * Information about a signed exchange response.
+     */
+    export interface SignedExchangeInfo {
+      /**
+       * The outer response of signed HTTP exchange which was received from network.
+       */
+      outerResponse: Response;
+      /**
+       * Information about the signed exchange header.
+       */
+      header?: SignedExchangeHeader;
+      /**
+       * Security details for the signed exchange header.
+       */
+      securityDetails?: SecurityDetails;
+      /**
+       * Errors occurred while handling the signed exchagne.
+       */
+      errors?: SignedExchangeError[];
+    }
+    export type PrivateNetworkRequestPolicy = "Allow"|"BlockFromInsecureToMorePrivate";
+    export type IPAddressSpace = "Local"|"Private"|"Public"|"Unknown";
+    export interface ClientSecurityState {
+      initiatorIsSecureContext: boolean;
+      initiatorIPAddressSpace: IPAddressSpace;
+      privateNetworkRequestPolicy: PrivateNetworkRequestPolicy;
+    }
+    export type CrossOriginOpenerPolicyValue = "SameOrigin"|"SameOriginAllowPopups"|"UnsafeNone"|"SameOriginPlusCoep";
+    export interface CrossOriginOpenerPolicyStatus {
+      value: CrossOriginOpenerPolicyValue;
+      reportOnlyValue: CrossOriginOpenerPolicyValue;
+      reportingEndpoint?: string;
+      reportOnlyReportingEndpoint?: string;
+    }
+    export type CrossOriginEmbedderPolicyValue = "None"|"RequireCorp";
+    export interface CrossOriginEmbedderPolicyStatus {
+      value: CrossOriginEmbedderPolicyValue;
+      reportOnlyValue: CrossOriginEmbedderPolicyValue;
+      reportingEndpoint?: string;
+      reportOnlyReportingEndpoint?: string;
+    }
+    export interface SecurityIsolationStatus {
+      coop?: CrossOriginOpenerPolicyStatus;
+      coep?: CrossOriginEmbedderPolicyStatus;
+    }
+    /**
+     * An object providing the result of a network resource load.
+     */
+    export interface LoadNetworkResourcePageResult {
+      success: boolean;
+      /**
+       * Optional values used for error reporting.
+       */
+      netError?: number;
+      netErrorName?: string;
+      httpStatusCode?: number;
+      /**
+       * If successful, one of the following two fields holds the result.
+       */
+      stream?: IO.StreamHandle;
+      /**
+       * Response headers.
+       */
+      headers?: Network.Headers;
+    }
+    /**
+     * An options object that may be extended later to better support CORS,
+CORB and streaming.
+     */
+    export interface LoadNetworkResourceOptions {
+      disableCache: boolean;
+      includeCredentials: boolean;
+    }
+    
+    /**
+     * Fired when data chunk was received over the network.
+     */
+    export type dataReceivedPayload = {
+      /**
+       * Request identifier.
+       */
+      requestId: RequestId;
+      /**
+       * Timestamp.
+       */
+      timestamp: MonotonicTime;
+      /**
+       * Data chunk length.
+       */
+      dataLength: number;
+      /**
+       * Actual bytes received (might be less than dataLength for compressed encodings).
+       */
+      encodedDataLength: number;
+    }
+    /**
+     * Fired when EventSource message is received.
+     */
+    export type eventSourceMessageReceivedPayload = {
+      /**
+       * Request identifier.
+       */
+      requestId: RequestId;
+      /**
+       * Timestamp.
+       */
+      timestamp: MonotonicTime;
+      /**
+       * Message type.
+       */
+      eventName: string;
+      /**
+       * Message identifier.
+       */
+      eventId: string;
+      /**
+       * Message content.
+       */
+      data: string;
+    }
+    /**
+     * Fired when HTTP request has failed to load.
+     */
+    export type loadingFailedPayload = {
+      /**
+       * Request identifier.
+       */
+      requestId: RequestId;
+      /**
+       * Timestamp.
+       */
+      timestamp: MonotonicTime;
+      /**
+       * Resource type.
+       */
+      type: ResourceType;
+      /**
+       * User friendly error message.
+       */
+      errorText: string;
+      /**
+       * True if loading was canceled.
+       */
+      canceled?: boolean;
+      /**
+       * The reason why loading was blocked, if any.
+       */
+      blockedReason?: BlockedReason;
+      /**
+       * The reason why loading was blocked by CORS, if any.
+       */
+      corsErrorStatus?: CorsErrorStatus;
+    }
+    /**
+     * Fired when HTTP request has finished loading.
+     */
+    export type loadingFinishedPayload = {
+      /**
+       * Request identifier.
+       */
+      requestId: RequestId;
+      /**
+       * Timestamp.
+       */
+      timestamp: MonotonicTime;
+      /**
+       * Total number of bytes received for this request.
+       */
+      encodedDataLength: number;
+      /**
+       * Set when 1) response was blocked by Cross-Origin Read Blocking and also
+2) this needs to be reported to the DevTools console.
+       */
+      shouldReportCorbBlocking?: boolean;
+    }
+    /**
+     * Details of an intercepted HTTP request, which must be either allowed, blocked, modified or
+mocked.
+Deprecated, use Fetch.requestPaused instead.
+     */
+    export type requestInterceptedPayload = {
+      /**
+       * Each request the page makes will have a unique id, however if any redirects are encountered
+while processing that fetch, they will be reported with the same id as the original fetch.
+Likewise if HTTP authentication is needed then the same fetch id will be used.
+       */
+      interceptionId: InterceptionId;
+      request: Request;
+      /**
+       * The id of the frame that initiated the request.
+       */
+      frameId: Page.FrameId;
+      /**
+       * How the requested resource will be used.
+       */
+      resourceType: ResourceType;
+      /**
+       * Whether this is a navigation request, which can abort the navigation completely.
+       */
+      isNavigationRequest: boolean;
+      /**
+       * Set if the request is a navigation that will result in a download.
+Only present after response is received from the server (i.e. HeadersReceived stage).
+       */
+      isDownload?: boolean;
+      /**
+       * Redirect location, only sent if a redirect was intercepted.
+       */
+      redirectUrl?: string;
+      /**
+       * Details of the Authorization Challenge encountered. If this is set then
+continueInterceptedRequest must contain an authChallengeResponse.
+       */
+      authChallenge?: AuthChallenge;
+      /**
+       * Response error if intercepted at response stage or if redirect occurred while intercepting
+request.
+       */
+      responseErrorReason?: ErrorReason;
+      /**
+       * Response code if intercepted at response stage or if redirect occurred while intercepting
+request or auth retry occurred.
+       */
+      responseStatusCode?: number;
+      /**
+       * Response headers if intercepted at the response stage or if redirect occurred while
+intercepting request or auth retry occurred.
+       */
+      responseHeaders?: Headers;
+      /**
+       * If the intercepted request had a corresponding requestWillBeSent event fired for it, then
+this requestId will be the same as the requestId present in the requestWillBeSent event.
+       */
+      requestId?: RequestId;
+    }
+    /**
+     * Fired if request ended up loading from cache.
+     */
+    export type requestServedFromCachePayload = {
+      /**
+       * Request identifier.
+       */
+      requestId: RequestId;
+    }
+    /**
+     * Fired when page is about to send HTTP request.
+     */
+    export type requestWillBeSentPayload = {
+      /**
+       * Request identifier.
+       */
+      requestId: RequestId;
+      /**
+       * Loader identifier. Empty string if the request is fetched from worker.
+       */
+      loaderId: LoaderId;
+      /**
+       * URL of the document this request is loaded for.
+       */
+      documentURL: string;
+      /**
+       * Request data.
+       */
+      request: Request;
+      /**
+       * Timestamp.
+       */
+      timestamp: MonotonicTime;
+      /**
+       * Timestamp.
+       */
+      wallTime: TimeSinceEpoch;
+      /**
+       * Request initiator.
+       */
+      initiator: Initiator;
+      /**
+       * Redirect response data.
+       */
+      redirectResponse?: Response;
+      /**
+       * Type of this resource.
+       */
+      type?: ResourceType;
+      /**
+       * Frame identifier.
+       */
+      frameId?: Page.FrameId;
+      /**
+       * Whether the request is initiated by a user gesture. Defaults to false.
+       */
+      hasUserGesture?: boolean;
+    }
+    /**
+     * Fired when resource loading priority is changed
+     */
+    export type resourceChangedPriorityPayload = {
+      /**
+       * Request identifier.
+       */
+      requestId: RequestId;
+      /**
+       * New priority
+       */
+      newPriority: ResourcePriority;
+      /**
+       * Timestamp.
+       */
+      timestamp: MonotonicTime;
+    }
+    /**
+     * Fired when a signed exchange was received over the network
+     */
+    export type signedExchangeReceivedPayload = {
+      /**
+       * Request identifier.
+       */
+      requestId: RequestId;
+      /**
+       * Information about the signed exchange response.
+       */
+      info: SignedExchangeInfo;
+    }
+    /**
+     * Fired when HTTP response is available.
+     */
+    export type responseReceivedPayload = {
+      /**
+       * Request identifier.
+       */
+      requestId: RequestId;
+      /**
+       * Loader identifier. Empty string if the request is fetched from worker.
+       */
+      loaderId: LoaderId;
+      /**
+       * Timestamp.
+       */
+      timestamp: MonotonicTime;
+      /**
+       * Resource type.
+       */
+      type: ResourceType;
+      /**
+       * Response data.
+       */
+      response: Response;
+      /**
+       * Frame identifier.
+       */
+      frameId?: Page.FrameId;
+    }
+    /**
+     * Fired when WebSocket is closed.
+     */
+    export type webSocketClosedPayload = {
+      /**
+       * Request identifier.
+       */
+      requestId: RequestId;
+      /**
+       * Timestamp.
+       */
+      timestamp: MonotonicTime;
+    }
+    /**
+     * Fired upon WebSocket creation.
+     */
+    export type webSocketCreatedPayload = {
+      /**
+       * Request identifier.
+       */
+      requestId: RequestId;
+      /**
+       * WebSocket request URL.
+       */
+      url: string;
+      /**
+       * Request initiator.
+       */
+      initiator?: Initiator;
+    }
+    /**
+     * Fired when WebSocket message error occurs.
+     */
+    export type webSocketFrameErrorPayload = {
+      /**
+       * Request identifier.
+       */
+      requestId: RequestId;
+      /**
+       * Timestamp.
+       */
+      timestamp: MonotonicTime;
+      /**
+       * WebSocket error message.
+       */
+      errorMessage: string;
+    }
+    /**
+     * Fired when WebSocket message is received.
+     */
+    export type webSocketFrameReceivedPayload = {
+      /**
+       * Request identifier.
+       */
+      requestId: RequestId;
+      /**
+       * Timestamp.
+       */
+      timestamp: MonotonicTime;
+      /**
+       * WebSocket response data.
+       */
+      response: WebSocketFrame;
+    }
+    /**
+     * Fired when WebSocket message is sent.
+     */
+    export type webSocketFrameSentPayload = {
+      /**
+       * Request identifier.
+       */
+      requestId: RequestId;
+      /**
+       * Timestamp.
+       */
+      timestamp: MonotonicTime;
+      /**
+       * WebSocket response data.
+       */
+      response: WebSocketFrame;
+    }
+    /**
+     * Fired when WebSocket handshake response becomes available.
+     */
+    export type webSocketHandshakeResponseReceivedPayload = {
+      /**
+       * Request identifier.
+       */
+      requestId: RequestId;
+      /**
+       * Timestamp.
+       */
+      timestamp: MonotonicTime;
+      /**
+       * WebSocket response data.
+       */
+      response: WebSocketResponse;
+    }
+    /**
+     * Fired when WebSocket is about to initiate handshake.
+     */
+    export type webSocketWillSendHandshakeRequestPayload = {
+      /**
+       * Request identifier.
+       */
+      requestId: RequestId;
+      /**
+       * Timestamp.
+       */
+      timestamp: MonotonicTime;
+      /**
+       * UTC Timestamp.
+       */
+      wallTime: TimeSinceEpoch;
+      /**
+       * WebSocket request data.
+       */
+      request: WebSocketRequest;
+    }
+    /**
+     * Fired upon WebTransport creation.
+     */
+    export type webTransportCreatedPayload = {
+      /**
+       * WebTransport identifier.
+       */
+      transportId: RequestId;
+      /**
+       * WebTransport request URL.
+       */
+      url: string;
+      /**
+       * Request initiator.
+       */
+      initiator?: Initiator;
+    }
+    export type webTransportClosedPayload = {
+      /**
+       * WebTransport identifier.
+       */
+      transportId: RequestId;
+    }
+    /**
+     * Fired when additional information about a requestWillBeSent event is available from the
+network stack. Not every requestWillBeSent event will have an additional
+requestWillBeSentExtraInfo fired for it, and there is no guarantee whether requestWillBeSent
+or requestWillBeSentExtraInfo will be fired first for the same request.
+     */
+    export type requestWillBeSentExtraInfoPayload = {
+      /**
+       * Request identifier. Used to match this information to an existing requestWillBeSent event.
+       */
+      requestId: RequestId;
+      /**
+       * A list of cookies potentially associated to the requested URL. This includes both cookies sent with
+the request and the ones not sent; the latter are distinguished by having blockedReason field set.
+       */
+      associatedCookies: BlockedCookieWithReason[];
+      /**
+       * Raw request headers as they will be sent over the wire.
+       */
+      headers: Headers;
+      /**
+       * The client security state set for the request.
+       */
+      clientSecurityState?: ClientSecurityState;
+    }
+    /**
+     * Fired when additional information about a responseReceived event is available from the network
+stack. Not every responseReceived event will have an additional responseReceivedExtraInfo for
+it, and responseReceivedExtraInfo may be fired before or after responseReceived.
+     */
+    export type responseReceivedExtraInfoPayload = {
+      /**
+       * Request identifier. Used to match this information to another responseReceived event.
+       */
+      requestId: RequestId;
+      /**
+       * A list of cookies which were not stored from the response along with the corresponding
+reasons for blocking. The cookies here may not be valid due to syntax errors, which
+are represented by the invalid cookie line string instead of a proper cookie.
+       */
+      blockedCookies: BlockedSetCookieWithReason[];
+      /**
+       * Raw response headers as they were received over the wire.
+       */
+      headers: Headers;
+      /**
+       * Raw response header text as it was received over the wire. The raw text may not always be
+available, such as in the case of HTTP/2 or QUIC.
+       */
+      headersText?: string;
+    }
+    /**
+     * Fired exactly once for each Trust Token operation. Depending on
+the type of the operation and whether the operation succeeded or
+failed, the event is fired before the corresponding request was sent
+or after the response was received.
+     */
+    export type trustTokenOperationDonePayload = {
+      /**
+       * Detailed success or error status of the operation.
+'AlreadyExists' also signifies a successful operation, as the result
+of the operation already exists und thus, the operation was abort
+preemptively (e.g. a cache hit).
+       */
+      status: "Ok"|"InvalidArgument"|"FailedPrecondition"|"ResourceExhausted"|"AlreadyExists"|"Unavailable"|"BadResponse"|"InternalError"|"UnknownError"|"FulfilledLocally";
+      type: TrustTokenOperationType;
+      requestId: RequestId;
+      /**
+       * Top level origin. The context in which the operation was attempted.
+       */
+      topLevelOrigin?: string;
+      /**
+       * Origin of the issuer in case of a "Issuance" or "Redemption" operation.
+       */
+      issuerOrigin?: string;
+      /**
+       * The number of obtained Trust Tokens on a successful "Issuance" operation.
+       */
+      issuedTokenCount?: number;
+    }
+    
+    /**
+     * Tells whether clearing browser cache is supported.
+     */
+    export type canClearBrowserCacheParameters = {
+    }
+    export type canClearBrowserCacheReturnValue = {
+      /**
+       * True if browser cache can be cleared.
+       */
+      result: boolean;
+    }
+    /**
+     * Tells whether clearing browser cookies is supported.
+     */
+    export type canClearBrowserCookiesParameters = {
+    }
+    export type canClearBrowserCookiesReturnValue = {
+      /**
+       * True if browser cookies can be cleared.
+       */
+      result: boolean;
+    }
+    /**
+     * Tells whether emulation of network conditions is supported.
+     */
+    export type canEmulateNetworkConditionsParameters = {
+    }
+    export type canEmulateNetworkConditionsReturnValue = {
+      /**
+       * True if emulation of network conditions is supported.
+       */
+      result: boolean;
+    }
+    /**
+     * Clears browser cache.
+     */
+    export type clearBrowserCacheParameters = {
+    }
+    export type clearBrowserCacheReturnValue = {
+    }
+    /**
+     * Clears browser cookies.
+     */
+    export type clearBrowserCookiesParameters = {
+    }
+    export type clearBrowserCookiesReturnValue = {
+    }
+    /**
+     * Response to Network.requestIntercepted which either modifies the request to continue with any
+modifications, or blocks it, or completes it with the provided response bytes. If a network
+fetch occurs as a result which encounters a redirect an additional Network.requestIntercepted
+event will be sent with the same InterceptionId.
+Deprecated, use Fetch.continueRequest, Fetch.fulfillRequest and Fetch.failRequest instead.
+     */
+    export type continueInterceptedRequestParameters = {
+      interceptionId: InterceptionId;
+      /**
+       * If set this causes the request to fail with the given reason. Passing `Aborted` for requests
+marked with `isNavigationRequest` also cancels the navigation. Must not be set in response
+to an authChallenge.
+       */
+      errorReason?: ErrorReason;
+      /**
+       * If set the requests completes using with the provided base64 encoded raw response, including
+HTTP status line and headers etc... Must not be set in response to an authChallenge.
+       */
+      rawResponse?: binary;
+      /**
+       * If set the request url will be modified in a way that's not observable by page. Must not be
+set in response to an authChallenge.
+       */
+      url?: string;
+      /**
+       * If set this allows the request method to be overridden. Must not be set in response to an
+authChallenge.
+       */
+      method?: string;
+      /**
+       * If set this allows postData to be set. Must not be set in response to an authChallenge.
+       */
+      postData?: string;
+      /**
+       * If set this allows the request headers to be changed. Must not be set in response to an
+authChallenge.
+       */
+      headers?: Headers;
+      /**
+       * Response to a requestIntercepted with an authChallenge. Must not be set otherwise.
+       */
+      authChallengeResponse?: AuthChallengeResponse;
+    }
+    export type continueInterceptedRequestReturnValue = {
+    }
+    /**
+     * Deletes browser cookies with matching name and url or domain/path pair.
+     */
+    export type deleteCookiesParameters = {
+      /**
+       * Name of the cookies to remove.
+       */
+      name: string;
+      /**
+       * If specified, deletes all the cookies with the given name where domain and path match
+provided URL.
+       */
+      url?: string;
+      /**
+       * If specified, deletes only cookies with the exact domain.
+       */
+      domain?: string;
+      /**
+       * If specified, deletes only cookies with the exact path.
+       */
+      path?: string;
+    }
+    export type deleteCookiesReturnValue = {
+    }
+    /**
+     * Disables network tracking, prevents network events from being sent to the client.
+     */
+    export type disableParameters = {
+    }
+    export type disableReturnValue = {
+    }
+    /**
+     * Activates emulation of network conditions.
+     */
+    export type emulateNetworkConditionsParameters = {
+      /**
+       * True to emulate internet disconnection.
+       */
+      offline: boolean;
+      /**
+       * Minimum latency from request sent to response headers received (ms).
+       */
+      latency: number;
+      /**
+       * Maximal aggregated download throughput (bytes/sec). -1 disables download throttling.
+       */
+      downloadThroughput: number;
+      /**
+       * Maximal aggregated upload throughput (bytes/sec).  -1 disables upload throttling.
+       */
+      uploadThroughput: number;
+      /**
+       * Connection type if known.
+       */
+      connectionType?: ConnectionType;
+    }
+    export type emulateNetworkConditionsReturnValue = {
+    }
+    /**
+     * Enables network tracking, network events will now be delivered to the client.
+     */
+    export type enableParameters = {
+      /**
+       * Buffer size in bytes to use when preserving network payloads (XHRs, etc).
+       */
+      maxTotalBufferSize?: number;
+      /**
+       * Per-resource buffer size in bytes to use when preserving network payloads (XHRs, etc).
+       */
+      maxResourceBufferSize?: number;
+      /**
+       * Longest post body size (in bytes) that would be included in requestWillBeSent notification
+       */
+      maxPostDataSize?: number;
+    }
+    export type enableReturnValue = {
+    }
+    /**
+     * Returns all browser cookies. Depending on the backend support, will return detailed cookie
+information in the `cookies` field.
+     */
+    export type getAllCookiesParameters = {
+    }
+    export type getAllCookiesReturnValue = {
+      /**
+       * Array of cookie objects.
+       */
+      cookies: Cookie[];
+    }
+    /**
+     * Returns the DER-encoded certificate.
+     */
+    export type getCertificateParameters = {
+      /**
+       * Origin to get certificate for.
+       */
+      origin: string;
+    }
+    export type getCertificateReturnValue = {
+      tableNames: string[];
+    }
+    /**
+     * Returns all browser cookies for the current URL. Depending on the backend support, will return
+detailed cookie information in the `cookies` field.
+     */
+    export type getCookiesParameters = {
+      /**
+       * The list of URLs for which applicable cookies will be fetched.
+If not specified, it's assumed to be set to the list containing
+the URLs of the page and all of its subframes.
+       */
+      urls?: string[];
+    }
+    export type getCookiesReturnValue = {
+      /**
+       * Array of cookie objects.
+       */
+      cookies: Cookie[];
+    }
+    /**
+     * Returns content served for the given request.
+     */
+    export type getResponseBodyParameters = {
+      /**
+       * Identifier of the network request to get content for.
+       */
+      requestId: RequestId;
+    }
+    export type getResponseBodyReturnValue = {
+      /**
+       * Response body.
+       */
+      body: string;
+      /**
+       * True, if content was sent as base64.
+       */
+      base64Encoded: boolean;
+    }
+    /**
+     * Returns post data sent with the request. Returns an error when no data was sent with the request.
+     */
+    export type getRequestPostDataParameters = {
+      /**
+       * Identifier of the network request to get content for.
+       */
+      requestId: RequestId;
+    }
+    export type getRequestPostDataReturnValue = {
+      /**
+       * Request body string, omitting files from multipart requests
+       */
+      postData: string;
+    }
+    /**
+     * Returns content served for the given currently intercepted request.
+     */
+    export type getResponseBodyForInterceptionParameters = {
+      /**
+       * Identifier for the intercepted request to get body for.
+       */
+      interceptionId: InterceptionId;
+    }
+    export type getResponseBodyForInterceptionReturnValue = {
+      /**
+       * Response body.
+       */
+      body: string;
+      /**
+       * True, if content was sent as base64.
+       */
+      base64Encoded: boolean;
+    }
+    /**
+     * Returns a handle to the stream representing the response body. Note that after this command,
+the intercepted request can't be continued as is -- you either need to cancel it or to provide
+the response body. The stream only supports sequential read, IO.read will fail if the position
+is specified.
+     */
+    export type takeResponseBodyForInterceptionAsStreamParameters = {
+      interceptionId: InterceptionId;
+    }
+    export type takeResponseBodyForInterceptionAsStreamReturnValue = {
+      stream: IO.StreamHandle;
+    }
+    /**
+     * This method sends a new XMLHttpRequest which is identical to the original one. The following
+parameters should be identical: method, url, async, request body, extra headers, withCredentials
+attribute, user, password.
+     */
+    export type replayXHRParameters = {
+      /**
+       * Identifier of XHR to replay.
+       */
+      requestId: RequestId;
+    }
+    export type replayXHRReturnValue = {
+    }
+    /**
+     * Searches for given string in response content.
+     */
+    export type searchInResponseBodyParameters = {
+      /**
+       * Identifier of the network response to search.
+       */
+      requestId: RequestId;
+      /**
+       * String to search for.
+       */
+      query: string;
+      /**
+       * If true, search is case sensitive.
+       */
+      caseSensitive?: boolean;
+      /**
+       * If true, treats string parameter as regex.
+       */
+      isRegex?: boolean;
+    }
+    export type searchInResponseBodyReturnValue = {
+      /**
+       * List of search matches.
+       */
+      result: Debugger.SearchMatch[];
+    }
+    /**
+     * Blocks URLs from loading.
+     */
+    export type setBlockedURLsParameters = {
+      /**
+       * URL patterns to block. Wildcards ('*') are allowed.
+       */
+      urls: string[];
+    }
+    export type setBlockedURLsReturnValue = {
+    }
+    /**
+     * Toggles ignoring of service worker for each request.
+     */
+    export type setBypassServiceWorkerParameters = {
+      /**
+       * Bypass service worker and load from network.
+       */
+      bypass: boolean;
+    }
+    export type setBypassServiceWorkerReturnValue = {
+    }
+    /**
+     * Toggles ignoring cache for each request. If `true`, cache will not be used.
+     */
+    export type setCacheDisabledParameters = {
+      /**
+       * Cache disabled state.
+       */
+      cacheDisabled: boolean;
+    }
+    export type setCacheDisabledReturnValue = {
+    }
+    /**
+     * Sets a cookie with the given cookie data; may overwrite equivalent cookies if they exist.
+     */
+    export type setCookieParameters = {
+      /**
+       * Cookie name.
+       */
+      name: string;
+      /**
+       * Cookie value.
+       */
+      value: string;
+      /**
+       * The request-URI to associate with the setting of the cookie. This value can affect the
+default domain and path values of the created cookie.
+       */
+      url?: string;
+      /**
+       * Cookie domain.
+       */
+      domain?: string;
+      /**
+       * Cookie path.
+       */
+      path?: string;
+      /**
+       * True if cookie is secure.
+       */
+      secure?: boolean;
+      /**
+       * True if cookie is http-only.
+       */
+      httpOnly?: boolean;
+      /**
+       * Cookie SameSite type.
+       */
+      sameSite?: CookieSameSite;
+      /**
+       * Cookie expiration date, session cookie if not set
+       */
+      expires?: TimeSinceEpoch;
+      /**
+       * Cookie Priority type.
+       */
+      priority?: CookiePriority;
+    }
+    export type setCookieReturnValue = {
+      /**
+       * Always set to true. If an error occurs, the response indicates protocol error.
+       */
+      success: boolean;
+    }
+    /**
+     * Sets given cookies.
+     */
+    export type setCookiesParameters = {
+      /**
+       * Cookies to be set.
+       */
+      cookies: CookieParam[];
+    }
+    export type setCookiesReturnValue = {
+    }
+    /**
+     * For testing.
+     */
+    export type setDataSizeLimitsForTestParameters = {
+      /**
+       * Maximum total buffer size.
+       */
+      maxTotalSize: number;
+      /**
+       * Maximum per-resource size.
+       */
+      maxResourceSize: number;
+    }
+    export type setDataSizeLimitsForTestReturnValue = {
+    }
+    /**
+     * Specifies whether to always send extra HTTP headers with the requests from this page.
+     */
+    export type setExtraHTTPHeadersParameters = {
+      /**
+       * Map with extra HTTP headers.
+       */
+      headers: Headers;
+    }
+    export type setExtraHTTPHeadersReturnValue = {
+    }
+    /**
+     * Specifies whether to attach a page script stack id in requests
+     */
+    export type setAttachDebugStackParameters = {
+      /**
+       * Whether to attach a page script stack for debugging purpose.
+       */
+      enabled: boolean;
+    }
+    export type setAttachDebugStackReturnValue = {
+    }
+    /**
+     * Sets the requests to intercept that match the provided patterns and optionally resource types.
+Deprecated, please use Fetch.enable instead.
+     */
+    export type setRequestInterceptionParameters = {
+      /**
+       * Requests matching any of these patterns will be forwarded and wait for the corresponding
+continueInterceptedRequest call.
+       */
+      patterns: RequestPattern[];
+    }
+    export type setRequestInterceptionReturnValue = {
+    }
+    /**
+     * Allows overriding user agent with the given string.
+     */
+    export type setUserAgentOverrideParameters = {
+      /**
+       * User agent to use.
+       */
+      userAgent: string;
+      /**
+       * Browser langugage to emulate.
+       */
+      acceptLanguage?: string;
+      /**
+       * The platform navigator.platform should return.
+       */
+      platform?: string;
+      /**
+       * To be sent in Sec-CH-UA-* headers and returned in navigator.userAgentData
+       */
+      userAgentMetadata?: Emulation.UserAgentMetadata;
+    }
+    export type setUserAgentOverrideReturnValue = {
+    }
+    /**
+     * Returns information about the COEP/COOP isolation status.
+     */
+    export type getSecurityIsolationStatusParameters = {
+      /**
+       * If no frameId is provided, the status of the target is provided.
+       */
+      frameId?: Page.FrameId;
+    }
+    export type getSecurityIsolationStatusReturnValue = {
+      status: SecurityIsolationStatus;
+    }
+    /**
+     * Fetches the resource and returns the content.
+     */
+    export type loadNetworkResourceParameters = {
+      /**
+       * Frame id to get the resource for.
+       */
+      frameId: Page.FrameId;
+      /**
+       * URL of the resource to get content for.
+       */
+      url: string;
+      /**
+       * Options for the request.
+       */
+      options: LoadNetworkResourceOptions;
+    }
+    export type loadNetworkResourceReturnValue = {
+      resource: LoadNetworkResourcePageResult;
+    }
+  }
+  
+  /**
+   * This domain provides various functionality related to drawing atop the inspected page.
+   */
+  export module Overlay {
+    /**
+     * Configuration data for drawing the source order of an elements children.
+     */
+    export interface SourceOrderConfig {
+      /**
+       * the color to outline the givent element in.
+       */
+      parentOutlineColor: DOM.RGBA;
+      /**
+       * the color to outline the child elements in.
+       */
+      childOutlineColor: DOM.RGBA;
+    }
+    /**
+     * Configuration data for the highlighting of Grid elements.
+     */
+    export interface GridHighlightConfig {
+      /**
+       * Whether the extension lines from grid cells to the rulers should be shown (default: false).
+       */
+      showGridExtensionLines?: boolean;
+      /**
+       * Show Positive line number labels (default: false).
+       */
+      showPositiveLineNumbers?: boolean;
+      /**
+       * Show Negative line number labels (default: false).
+       */
+      showNegativeLineNumbers?: boolean;
+      /**
+       * Show area name labels (default: false).
+       */
+      showAreaNames?: boolean;
+      /**
+       * Show line name labels (default: false).
+       */
+      showLineNames?: boolean;
+      /**
+       * Show track size labels (default: false).
+       */
+      showTrackSizes?: boolean;
+      /**
+       * The grid container border highlight color (default: transparent).
+       */
+      gridBorderColor?: DOM.RGBA;
+      /**
+       * The cell border color (default: transparent). Deprecated, please use rowLineColor and columnLineColor instead.
+       */
+      cellBorderColor?: DOM.RGBA;
+      /**
+       * The row line color (default: transparent).
+       */
+      rowLineColor?: DOM.RGBA;
+      /**
+       * The column line color (default: transparent).
+       */
+      columnLineColor?: DOM.RGBA;
+      /**
+       * Whether the grid border is dashed (default: false).
+       */
+      gridBorderDash?: boolean;
+      /**
+       * Whether the cell border is dashed (default: false). Deprecated, please us rowLineDash and columnLineDash instead.
+       */
+      cellBorderDash?: boolean;
+      /**
+       * Whether row lines are dashed (default: false).
+       */
+      rowLineDash?: boolean;
+      /**
+       * Whether column lines are dashed (default: false).
+       */
+      columnLineDash?: boolean;
+      /**
+       * The row gap highlight fill color (default: transparent).
+       */
+      rowGapColor?: DOM.RGBA;
+      /**
+       * The row gap hatching fill color (default: transparent).
+       */
+      rowHatchColor?: DOM.RGBA;
+      /**
+       * The column gap highlight fill color (default: transparent).
+       */
+      columnGapColor?: DOM.RGBA;
+      /**
+       * The column gap hatching fill color (default: transparent).
+       */
+      columnHatchColor?: DOM.RGBA;
+      /**
+       * The named grid areas border color (Default: transparent).
+       */
+      areaBorderColor?: DOM.RGBA;
+      /**
+       * The grid container background color (Default: transparent).
+       */
+      gridBackgroundColor?: DOM.RGBA;
+    }
+    /**
+     * Configuration data for the highlighting of Flex container elements.
+     */
+    export interface FlexContainerHighlightConfig {
+      /**
+       * The style of the container border
+       */
+      containerBorder?: LineStyle;
+      /**
+       * The style of the separator between lines
+       */
+      lineSeparator?: LineStyle;
+      /**
+       * The style of the separator between items
+       */
+      itemSeparator?: LineStyle;
+      /**
+       * Style of content-distribution space on the main axis (justify-content).
+       */
+      mainDistributedSpace?: BoxStyle;
+      /**
+       * Style of content-distribution space on the cross axis (align-content).
+       */
+      crossDistributedSpace?: BoxStyle;
+      /**
+       * Style of empty space caused by row gaps (gap/row-gap).
+       */
+      rowGapSpace?: BoxStyle;
+      /**
+       * Style of empty space caused by columns gaps (gap/column-gap).
+       */
+      columnGapSpace?: BoxStyle;
+      /**
+       * Style of the self-alignment line (align-items).
+       */
+      crossAlignment?: LineStyle;
+    }
+    /**
+     * Style information for drawing a line.
+     */
+    export interface LineStyle {
+      /**
+       * The color of the line (default: transparent)
+       */
+      color?: DOM.RGBA;
+      /**
+       * The line pattern (default: solid)
+       */
+      pattern?: "dashed"|"dotted";
+    }
+    /**
+     * Style information for drawing a box.
+     */
+    export interface BoxStyle {
+      /**
+       * The background color for the box (default: transparent)
+       */
+      fillColor?: DOM.RGBA;
+      /**
+       * The hatching color for the box (default: transparent)
+       */
+      hatchColor?: DOM.RGBA;
+    }
+    export type ContrastAlgorithm = "aa"|"aaa"|"apca";
+    /**
+     * Configuration data for the highlighting of page elements.
+     */
+    export interface HighlightConfig {
+      /**
+       * Whether the node info tooltip should be shown (default: false).
+       */
+      showInfo?: boolean;
+      /**
+       * Whether the node styles in the tooltip (default: false).
+       */
+      showStyles?: boolean;
+      /**
+       * Whether the rulers should be shown (default: false).
+       */
+      showRulers?: boolean;
+      /**
+       * Whether the a11y info should be shown (default: true).
+       */
+      showAccessibilityInfo?: boolean;
+      /**
+       * Whether the extension lines from node to the rulers should be shown (default: false).
+       */
+      showExtensionLines?: boolean;
+      /**
+       * The content box highlight fill color (default: transparent).
+       */
+      contentColor?: DOM.RGBA;
+      /**
+       * The padding highlight fill color (default: transparent).
+       */
+      paddingColor?: DOM.RGBA;
+      /**
+       * The border highlight fill color (default: transparent).
+       */
+      borderColor?: DOM.RGBA;
+      /**
+       * The margin highlight fill color (default: transparent).
+       */
+      marginColor?: DOM.RGBA;
+      /**
+       * The event target element highlight fill color (default: transparent).
+       */
+      eventTargetColor?: DOM.RGBA;
+      /**
+       * The shape outside fill color (default: transparent).
+       */
+      shapeColor?: DOM.RGBA;
+      /**
+       * The shape margin fill color (default: transparent).
+       */
+      shapeMarginColor?: DOM.RGBA;
+      /**
+       * The grid layout color (default: transparent).
+       */
+      cssGridColor?: DOM.RGBA;
+      /**
+       * The color format used to format color styles (default: hex).
+       */
+      colorFormat?: ColorFormat;
+      /**
+       * The grid layout highlight configuration (default: all transparent).
+       */
+      gridHighlightConfig?: GridHighlightConfig;
+      /**
+       * The flex container highlight configuration (default: all transparent).
+       */
+      flexContainerHighlightConfig?: FlexContainerHighlightConfig;
+      /**
+       * The contrast algorithm to use for the contrast ratio (default: aa).
+       */
+      contrastAlgorithm?: ContrastAlgorithm;
+    }
+    export type ColorFormat = "rgb"|"hsl"|"hex";
+    /**
+     * Configurations for Persistent Grid Highlight
+     */
+    export interface GridNodeHighlightConfig {
+      /**
+       * A descriptor for the highlight appearance.
+       */
+      gridHighlightConfig: GridHighlightConfig;
+      /**
+       * Identifier of the node to highlight.
+       */
+      nodeId: DOM.NodeId;
+    }
+    export interface FlexNodeHighlightConfig {
+      /**
+       * A descriptor for the highlight appearance of flex containers.
+       */
+      flexContainerHighlightConfig: FlexContainerHighlightConfig;
+      /**
+       * Identifier of the node to highlight.
+       */
+      nodeId: DOM.NodeId;
+    }
+    /**
+     * Configuration for dual screen hinge
+     */
+    export interface HingeConfig {
+      /**
+       * A rectangle represent hinge
+       */
+      rect: DOM.Rect;
+      /**
+       * The content box highlight fill color (default: a dark color).
+       */
+      contentColor?: DOM.RGBA;
+      /**
+       * The content box highlight outline color (default: transparent).
+       */
+      outlineColor?: DOM.RGBA;
+    }
+    export type InspectMode = "searchForNode"|"searchForUAShadowDOM"|"captureAreaScreenshot"|"showDistances"|"none";
+    
+    /**
+     * Fired when the node should be inspected. This happens after call to `setInspectMode` or when
+user manually inspects an element.
+     */
+    export type inspectNodeRequestedPayload = {
+      /**
+       * Id of the node to inspect.
+       */
+      backendNodeId: DOM.BackendNodeId;
+    }
+    /**
+     * Fired when the node should be highlighted. This happens after call to `setInspectMode`.
+     */
+    export type nodeHighlightRequestedPayload = {
+      nodeId: DOM.NodeId;
+    }
+    /**
+     * Fired when user asks to capture screenshot of some area on the page.
+     */
+    export type screenshotRequestedPayload = {
+      /**
+       * Viewport to capture, in device independent pixels (dip).
+       */
+      viewport: Page.Viewport;
+    }
+    /**
+     * Fired when user cancels the inspect mode.
+     */
+    export type inspectModeCanceledPayload = void;
+    
+    /**
+     * Disables domain notifications.
+     */
+    export type disableParameters = {
+    }
+    export type disableReturnValue = {
+    }
+    /**
+     * Enables domain notifications.
+     */
+    export type enableParameters = {
+    }
+    export type enableReturnValue = {
+    }
+    /**
+     * For testing.
+     */
+    export type getHighlightObjectForTestParameters = {
+      /**
+       * Id of the node to get highlight object for.
+       */
+      nodeId: DOM.NodeId;
+      /**
+       * Whether to include distance info.
+       */
+      includeDistance?: boolean;
+      /**
+       * Whether to include style info.
+       */
+      includeStyle?: boolean;
+      /**
+       * The color format to get config with (default: hex).
+       */
+      colorFormat?: ColorFormat;
+      /**
+       * Whether to show accessibility info (default: true).
+       */
+      showAccessibilityInfo?: boolean;
+    }
+    export type getHighlightObjectForTestReturnValue = {
+      /**
+       * Highlight data for the node.
+       */
+      highlight: { [key: string]: string };
+    }
+    /**
+     * For Persistent Grid testing.
+     */
+    export type getGridHighlightObjectsForTestParameters = {
+      /**
+       * Ids of the node to get highlight object for.
+       */
+      nodeIds: DOM.NodeId[];
+    }
+    export type getGridHighlightObjectsForTestReturnValue = {
+      /**
+       * Grid Highlight data for the node ids provided.
+       */
+      highlights: { [key: string]: string };
+    }
+    /**
+     * For Source Order Viewer testing.
+     */
+    export type getSourceOrderHighlightObjectForTestParameters = {
+      /**
+       * Id of the node to highlight.
+       */
+      nodeId: DOM.NodeId;
+    }
+    export type getSourceOrderHighlightObjectForTestReturnValue = {
+      /**
+       * Source order highlight data for the node id provided.
+       */
+      highlight: { [key: string]: string };
+    }
+    /**
+     * Hides any highlight.
+     */
+    export type hideHighlightParameters = {
+    }
+    export type hideHighlightReturnValue = {
+    }
+    /**
+     * Highlights owner element of the frame with given id.
+     */
+    export type highlightFrameParameters = {
+      /**
+       * Identifier of the frame to highlight.
+       */
+      frameId: Page.FrameId;
+      /**
+       * The content box highlight fill color (default: transparent).
+       */
+      contentColor?: DOM.RGBA;
+      /**
+       * The content box highlight outline color (default: transparent).
+       */
+      contentOutlineColor?: DOM.RGBA;
+    }
+    export type highlightFrameReturnValue = {
+    }
+    /**
+     * Highlights DOM node with given id or with the given JavaScript object wrapper. Either nodeId or
+objectId must be specified.
+     */
+    export type highlightNodeParameters = {
+      /**
+       * A descriptor for the highlight appearance.
+       */
+      highlightConfig: HighlightConfig;
+      /**
+       * Identifier of the node to highlight.
+       */
+      nodeId?: DOM.NodeId;
+      /**
+       * Identifier of the backend node to highlight.
+       */
+      backendNodeId?: DOM.BackendNodeId;
+      /**
+       * JavaScript object id of the node to be highlighted.
+       */
+      objectId?: Runtime.RemoteObjectId;
+      /**
+       * Selectors to highlight relevant nodes.
+       */
+      selector?: string;
+    }
+    export type highlightNodeReturnValue = {
+    }
+    /**
+     * Highlights given quad. Coordinates are absolute with respect to the main frame viewport.
+     */
+    export type highlightQuadParameters = {
+      /**
+       * Quad to highlight
+       */
+      quad: DOM.Quad;
+      /**
+       * The highlight fill color (default: transparent).
+       */
+      color?: DOM.RGBA;
+      /**
+       * The highlight outline color (default: transparent).
+       */
+      outlineColor?: DOM.RGBA;
+    }
+    export type highlightQuadReturnValue = {
+    }
+    /**
+     * Highlights given rectangle. Coordinates are absolute with respect to the main frame viewport.
+     */
+    export type highlightRectParameters = {
+      /**
+       * X coordinate
+       */
+      x: number;
+      /**
+       * Y coordinate
+       */
+      y: number;
+      /**
+       * Rectangle width
+       */
+      width: number;
+      /**
+       * Rectangle height
+       */
+      height: number;
+      /**
+       * The highlight fill color (default: transparent).
+       */
+      color?: DOM.RGBA;
+      /**
+       * The highlight outline color (default: transparent).
+       */
+      outlineColor?: DOM.RGBA;
+    }
+    export type highlightRectReturnValue = {
+    }
+    /**
+     * Highlights the source order of the children of the DOM node with given id or with the given
+JavaScript object wrapper. Either nodeId or objectId must be specified.
+     */
+    export type highlightSourceOrderParameters = {
+      /**
+       * A descriptor for the appearance of the overlay drawing.
+       */
+      sourceOrderConfig: SourceOrderConfig;
+      /**
+       * Identifier of the node to highlight.
+       */
+      nodeId?: DOM.NodeId;
+      /**
+       * Identifier of the backend node to highlight.
+       */
+      backendNodeId?: DOM.BackendNodeId;
+      /**
+       * JavaScript object id of the node to be highlighted.
+       */
+      objectId?: Runtime.RemoteObjectId;
+    }
+    export type highlightSourceOrderReturnValue = {
+    }
+    /**
+     * Enters the 'inspect' mode. In this mode, elements that user is hovering over are highlighted.
+Backend then generates 'inspectNodeRequested' event upon element selection.
+     */
+    export type setInspectModeParameters = {
+      /**
+       * Set an inspection mode.
+       */
+      mode: InspectMode;
+      /**
+       * A descriptor for the highlight appearance of hovered-over nodes. May be omitted if `enabled
+== false`.
+       */
+      highlightConfig?: HighlightConfig;
+    }
+    export type setInspectModeReturnValue = {
+    }
+    /**
+     * Highlights owner element of all frames detected to be ads.
+     */
+    export type setShowAdHighlightsParameters = {
+      /**
+       * True for showing ad highlights
+       */
+      show: boolean;
+    }
+    export type setShowAdHighlightsReturnValue = {
+    }
+    export type setPausedInDebuggerMessageParameters = {
+      /**
+       * The message to display, also triggers resume and step over controls.
+       */
+      message?: string;
+    }
+    export type setPausedInDebuggerMessageReturnValue = {
+    }
+    /**
+     * Requests that backend shows debug borders on layers
+     */
+    export type setShowDebugBordersParameters = {
+      /**
+       * True for showing debug borders
+       */
+      show: boolean;
+    }
+    export type setShowDebugBordersReturnValue = {
+    }
+    /**
+     * Requests that backend shows the FPS counter
+     */
+    export type setShowFPSCounterParameters = {
+      /**
+       * True for showing the FPS counter
+       */
+      show: boolean;
+    }
+    export type setShowFPSCounterReturnValue = {
+    }
+    /**
+     * Highlight multiple elements with the CSS Grid overlay.
+     */
+    export type setShowGridOverlaysParameters = {
+      /**
+       * An array of node identifiers and descriptors for the highlight appearance.
+       */
+      gridNodeHighlightConfigs: GridNodeHighlightConfig[];
+    }
+    export type setShowGridOverlaysReturnValue = {
+    }
+    export type setShowFlexOverlaysParameters = {
+      /**
+       * An array of node identifiers and descriptors for the highlight appearance.
+       */
+      flexNodeHighlightConfigs: FlexNodeHighlightConfig[];
+    }
+    export type setShowFlexOverlaysReturnValue = {
+    }
+    /**
+     * Requests that backend shows paint rectangles
+     */
+    export type setShowPaintRectsParameters = {
+      /**
+       * True for showing paint rectangles
+       */
+      result: boolean;
+    }
+    export type setShowPaintRectsReturnValue = {
+    }
+    /**
+     * Requests that backend shows layout shift regions
+     */
+    export type setShowLayoutShiftRegionsParameters = {
+      /**
+       * True for showing layout shift regions
+       */
+      result: boolean;
+    }
+    export type setShowLayoutShiftRegionsReturnValue = {
+    }
+    /**
+     * Requests that backend shows scroll bottleneck rects
+     */
+    export type setShowScrollBottleneckRectsParameters = {
+      /**
+       * True for showing scroll bottleneck rects
+       */
+      show: boolean;
+    }
+    export type setShowScrollBottleneckRectsReturnValue = {
+    }
+    /**
+     * Requests that backend shows hit-test borders on layers
+     */
+    export type setShowHitTestBordersParameters = {
+      /**
+       * True for showing hit-test borders
+       */
+      show: boolean;
+    }
+    export type setShowHitTestBordersReturnValue = {
+    }
+    /**
+     * Paints viewport size upon main frame resize.
+     */
+    export type setShowViewportSizeOnResizeParameters = {
+      /**
+       * Whether to paint size or not.
+       */
+      show: boolean;
+    }
+    export type setShowViewportSizeOnResizeReturnValue = {
+    }
+    /**
+     * Add a dual screen device hinge
+     */
+    export type setShowHingeParameters = {
+      /**
+       * hinge data, null means hideHinge
+       */
+      hingeConfig?: HingeConfig;
+    }
+    export type setShowHingeReturnValue = {
+    }
+  }
+  
+  /**
+   * Actions and events related to the inspected page belong to the page domain.
+   */
+  export module Page {
+    /**
+     * Unique frame identifier.
+     */
+    export type FrameId = string;
+    /**
+     * Indicates whether a frame has been identified as an ad.
+     */
+    export type AdFrameType = "none"|"child"|"root";
+    /**
+     * Indicates whether the frame is a secure context and why it is the case.
+     */
+    export type SecureContextType = "Secure"|"SecureLocalhost"|"InsecureScheme"|"InsecureAncestor";
+    /**
+     * Indicates whether the frame is cross-origin isolated and why it is the case.
+     */
+    export type CrossOriginIsolatedContextType = "Isolated"|"NotIsolated"|"NotIsolatedFeatureDisabled";
+    export type GatedAPIFeatures = "SharedArrayBuffers"|"SharedArrayBuffersTransferAllowed"|"PerformanceMeasureMemory"|"PerformanceProfile";
+    /**
+     * Information about the Frame on the page.
+     */
+    export interface Frame {
+      /**
+       * Frame unique identifier.
+       */
+      id: FrameId;
+      /**
+       * Parent frame identifier.
+       */
+      parentId?: string;
+      /**
+       * Identifier of the loader associated with this frame.
+       */
+      loaderId: Network.LoaderId;
+      /**
+       * Frame's name as specified in the tag.
+       */
+      name?: string;
+      /**
+       * Frame document's URL without fragment.
+       */
+      url: string;
+      /**
+       * Frame document's URL fragment including the '#'.
+       */
+      urlFragment?: string;
+      /**
+       * Frame document's registered domain, taking the public suffixes list into account.
+Extracted from the Frame's url.
+Example URLs: http://www.google.com/file.html -> "google.com"
+              http://a.b.co.uk/file.html      -> "b.co.uk"
+       */
+      domainAndRegistry: string;
+      /**
+       * Frame document's security origin.
+       */
+      securityOrigin: string;
+      /**
+       * Frame document's mimeType as determined by the browser.
+       */
+      mimeType: string;
+      /**
+       * If the frame failed to load, this contains the URL that could not be loaded. Note that unlike url above, this URL may contain a fragment.
+       */
+      unreachableUrl?: string;
+      /**
+       * Indicates whether this frame was tagged as an ad.
+       */
+      adFrameType?: AdFrameType;
+      /**
+       * Indicates whether the main document is a secure context and explains why that is the case.
+       */
+      secureContextType: SecureContextType;
+      /**
+       * Indicates whether this is a cross origin isolated context.
+       */
+      crossOriginIsolatedContextType: CrossOriginIsolatedContextType;
+      /**
+       * Indicated which gated APIs / features are available.
+       */
+      gatedAPIFeatures: GatedAPIFeatures[];
+    }
+    /**
+     * Information about the Resource on the page.
+     */
+    export interface FrameResource {
+      /**
+       * Resource URL.
+       */
+      url: string;
+      /**
+       * Type of this resource.
+       */
+      type: Network.ResourceType;
+      /**
+       * Resource mimeType as determined by the browser.
+       */
+      mimeType: string;
+      /**
+       * last-modified timestamp as reported by server.
+       */
+      lastModified?: Network.TimeSinceEpoch;
+      /**
+       * Resource content size.
+       */
+      contentSize?: number;
+      /**
+       * True if the resource failed to load.
+       */
+      failed?: boolean;
+      /**
+       * True if the resource was canceled during loading.
+       */
+      canceled?: boolean;
+    }
+    /**
+     * Information about the Frame hierarchy along with their cached resources.
+     */
+    export interface FrameResourceTree {
+      /**
+       * Frame information for this tree item.
+       */
+      frame: Frame;
+      /**
+       * Child frames.
+       */
+      childFrames?: FrameResourceTree[];
+      /**
+       * Information about frame resources.
+       */
+      resources: FrameResource[];
+    }
+    /**
+     * Information about the Frame hierarchy.
+     */
+    export interface FrameTree {
+      /**
+       * Frame information for this tree item.
+       */
+      frame: Frame;
+      /**
+       * Child frames.
+       */
+      childFrames?: FrameTree[];
+    }
+    /**
+     * Unique script identifier.
+     */
+    export type ScriptIdentifier = string;
+    /**
+     * Transition type.
+     */
+    export type TransitionType = "link"|"typed"|"address_bar"|"auto_bookmark"|"auto_subframe"|"manual_subframe"|"generated"|"auto_toplevel"|"form_submit"|"reload"|"keyword"|"keyword_generated"|"other";
+    /**
+     * Navigation history entry.
+     */
+    export interface NavigationEntry {
+      /**
+       * Unique id of the navigation history entry.
+       */
+      id: number;
+      /**
+       * URL of the navigation history entry.
+       */
+      url: string;
+      /**
+       * URL that the user typed in the url bar.
+       */
+      userTypedURL: string;
+      /**
+       * Title of the navigation history entry.
+       */
+      title: string;
+      /**
+       * Transition type.
+       */
+      transitionType: TransitionType;
+    }
+    /**
+     * Screencast frame metadata.
+     */
+    export interface ScreencastFrameMetadata {
+      /**
+       * Top offset in DIP.
+       */
+      offsetTop: number;
+      /**
+       * Page scale factor.
+       */
+      pageScaleFactor: number;
+      /**
+       * Device screen width in DIP.
+       */
+      deviceWidth: number;
+      /**
+       * Device screen height in DIP.
+       */
+      deviceHeight: number;
+      /**
+       * Position of horizontal scroll in CSS pixels.
+       */
+      scrollOffsetX: number;
+      /**
+       * Position of vertical scroll in CSS pixels.
+       */
+      scrollOffsetY: number;
+      /**
+       * Frame swap timestamp.
+       */
+      timestamp?: Network.TimeSinceEpoch;
+    }
+    /**
+     * Javascript dialog type.
+     */
+    export type DialogType = "alert"|"confirm"|"prompt"|"beforeunload";
+    /**
+     * Error while paring app manifest.
+     */
+    export interface AppManifestError {
+      /**
+       * Error message.
+       */
+      message: string;
+      /**
+       * If criticial, this is a non-recoverable parse error.
+       */
+      critical: number;
+      /**
+       * Error line.
+       */
+      line: number;
+      /**
+       * Error column.
+       */
+      column: number;
+    }
+    /**
+     * Parsed app manifest properties.
+     */
+    export interface AppManifestParsedProperties {
+      /**
+       * Computed scope value
+       */
+      scope: string;
+    }
+    /**
+     * Layout viewport position and dimensions.
+     */
+    export interface LayoutViewport {
+      /**
+       * Horizontal offset relative to the document (CSS pixels).
+       */
+      pageX: number;
+      /**
+       * Vertical offset relative to the document (CSS pixels).
+       */
+      pageY: number;
+      /**
+       * Width (CSS pixels), excludes scrollbar if present.
+       */
+      clientWidth: number;
+      /**
+       * Height (CSS pixels), excludes scrollbar if present.
+       */
+      clientHeight: number;
+    }
+    /**
+     * Visual viewport position, dimensions, and scale.
+     */
+    export interface VisualViewport {
+      /**
+       * Horizontal offset relative to the layout viewport (CSS pixels).
+       */
+      offsetX: number;
+      /**
+       * Vertical offset relative to the layout viewport (CSS pixels).
+       */
+      offsetY: number;
+      /**
+       * Horizontal offset relative to the document (CSS pixels).
+       */
+      pageX: number;
+      /**
+       * Vertical offset relative to the document (CSS pixels).
+       */
+      pageY: number;
+      /**
+       * Width (CSS pixels), excludes scrollbar if present.
+       */
+      clientWidth: number;
+      /**
+       * Height (CSS pixels), excludes scrollbar if present.
+       */
+      clientHeight: number;
+      /**
+       * Scale relative to the ideal viewport (size at width=device-width).
+       */
+      scale: number;
+      /**
+       * Page zoom factor (CSS to device independent pixels ratio).
+       */
+      zoom?: number;
+    }
+    /**
+     * Viewport for capturing screenshot.
+     */
+    export interface Viewport {
+      /**
+       * X offset in device independent pixels (dip).
+       */
+      x: number;
+      /**
+       * Y offset in device independent pixels (dip).
+       */
+      y: number;
+      /**
+       * Rectangle width in device independent pixels (dip).
+       */
+      width: number;
+      /**
+       * Rectangle height in device independent pixels (dip).
+       */
+      height: number;
+      /**
+       * Page scale factor.
+       */
+      scale: number;
+    }
+    /**
+     * Generic font families collection.
+     */
+    export interface FontFamilies {
+      /**
+       * The standard font-family.
+       */
+      standard?: string;
+      /**
+       * The fixed font-family.
+       */
+      fixed?: string;
+      /**
+       * The serif font-family.
+       */
+      serif?: string;
+      /**
+       * The sansSerif font-family.
+       */
+      sansSerif?: string;
+      /**
+       * The cursive font-family.
+       */
+      cursive?: string;
+      /**
+       * The fantasy font-family.
+       */
+      fantasy?: string;
+      /**
+       * The pictograph font-family.
+       */
+      pictograph?: string;
+    }
+    /**
+     * Default font sizes.
+     */
+    export interface FontSizes {
+      /**
+       * Default standard font size.
+       */
+      standard?: number;
+      /**
+       * Default fixed font size.
+       */
+      fixed?: number;
+    }
+    export type ClientNavigationReason = "formSubmissionGet"|"formSubmissionPost"|"httpHeaderRefresh"|"scriptInitiated"|"metaTagRefresh"|"pageBlockInterstitial"|"reload"|"anchorClick";
+    export type ClientNavigationDisposition = "currentTab"|"newTab"|"newWindow"|"download";
+    export interface InstallabilityErrorArgument {
+      /**
+       * Argument name (e.g. name:'minimum-icon-size-in-pixels').
+       */
+      name: string;
+      /**
+       * Argument value (e.g. value:'64').
+       */
+      value: string;
+    }
+    /**
+     * The installability error
+     */
+    export interface InstallabilityError {
+      /**
+       * The error id (e.g. 'manifest-missing-suitable-icon').
+       */
+      errorId: string;
+      /**
+       * The list of error arguments (e.g. {name:'minimum-icon-size-in-pixels', value:'64'}).
+       */
+      errorArguments: InstallabilityErrorArgument[];
+    }
+    /**
+     * The referring-policy used for the navigation.
+     */
+    export type ReferrerPolicy = "noReferrer"|"noReferrerWhenDowngrade"|"origin"|"originWhenCrossOrigin"|"sameOrigin"|"strictOrigin"|"strictOriginWhenCrossOrigin"|"unsafeUrl";
+    
+    export type domContentEventFiredPayload = {
+      timestamp: Network.MonotonicTime;
+    }
+    /**
+     * Emitted only when `page.interceptFileChooser` is enabled.
+     */
+    export type fileChooserOpenedPayload = {
+      /**
+       * Id of the frame containing input node.
+       */
+      frameId: FrameId;
+      /**
+       * Input node id.
+       */
+      backendNodeId: DOM.BackendNodeId;
+      /**
+       * Input mode.
+       */
+      mode: "selectSingle"|"selectMultiple";
+    }
+    /**
+     * Fired when frame has been attached to its parent.
+     */
+    export type frameAttachedPayload = {
+      /**
+       * Id of the frame that has been attached.
+       */
+      frameId: FrameId;
+      /**
+       * Parent frame identifier.
+       */
+      parentFrameId: FrameId;
+      /**
+       * JavaScript stack trace of when frame was attached, only set if frame initiated from script.
+       */
+      stack?: Runtime.StackTrace;
+    }
+    /**
+     * Fired when frame no longer has a scheduled navigation.
+     */
+    export type frameClearedScheduledNavigationPayload = {
+      /**
+       * Id of the frame that has cleared its scheduled navigation.
+       */
+      frameId: FrameId;
+    }
+    /**
+     * Fired when frame has been detached from its parent.
+     */
+    export type frameDetachedPayload = {
+      /**
+       * Id of the frame that has been detached.
+       */
+      frameId: FrameId;
+      reason: "remove"|"swap";
+    }
+    /**
+     * Fired once navigation of the frame has completed. Frame is now associated with the new loader.
+     */
+    export type frameNavigatedPayload = {
+      /**
+       * Frame object.
+       */
+      frame: Frame;
+    }
+    /**
+     * Fired when opening document to write to.
+     */
+    export type documentOpenedPayload = {
+      /**
+       * Frame object.
+       */
+      frame: Frame;
+    }
+    export type frameResizedPayload = void;
+    /**
+     * Fired when a renderer-initiated navigation is requested.
+Navigation may still be cancelled after the event is issued.
+     */
+    export type frameRequestedNavigationPayload = {
+      /**
+       * Id of the frame that is being navigated.
+       */
+      frameId: FrameId;
+      /**
+       * The reason for the navigation.
+       */
+      reason: ClientNavigationReason;
+      /**
+       * The destination URL for the requested navigation.
+       */
+      url: string;
+      /**
+       * The disposition for the navigation.
+       */
+      disposition: ClientNavigationDisposition;
+    }
+    /**
+     * Fired when frame schedules a potential navigation.
+     */
+    export type frameScheduledNavigationPayload = {
+      /**
+       * Id of the frame that has scheduled a navigation.
+       */
+      frameId: FrameId;
+      /**
+       * Delay (in seconds) until the navigation is scheduled to begin. The navigation is not
+guaranteed to start.
+       */
+      delay: number;
+      /**
+       * The reason for the navigation.
+       */
+      reason: ClientNavigationReason;
+      /**
+       * The destination URL for the scheduled navigation.
+       */
+      url: string;
+    }
+    /**
+     * Fired when frame has started loading.
+     */
+    export type frameStartedLoadingPayload = {
+      /**
+       * Id of the frame that has started loading.
+       */
+      frameId: FrameId;
+    }
+    /**
+     * Fired when frame has stopped loading.
+     */
+    export type frameStoppedLoadingPayload = {
+      /**
+       * Id of the frame that has stopped loading.
+       */
+      frameId: FrameId;
+    }
+    /**
+     * Fired when page is about to start a download.
+     */
+    export type downloadWillBeginPayload = {
+      /**
+       * Id of the frame that caused download to begin.
+       */
+      frameId: FrameId;
+      /**
+       * Global unique identifier of the download.
+       */
+      guid: string;
+      /**
+       * URL of the resource being downloaded.
+       */
+      url: string;
+      /**
+       * Suggested file name of the resource (the actual name of the file saved on disk may differ).
+       */
+      suggestedFilename: string;
+    }
+    /**
+     * Fired when download makes progress. Last call has |done| == true.
+     */
+    export type downloadProgressPayload = {
+      /**
+       * Global unique identifier of the download.
+       */
+      guid: string;
+      /**
+       * Total expected bytes to download.
+       */
+      totalBytes: number;
+      /**
+       * Total bytes received.
+       */
+      receivedBytes: number;
+      /**
+       * Download status.
+       */
+      state: "inProgress"|"completed"|"canceled";
+    }
+    /**
+     * Fired when interstitial page was hidden
+     */
+    export type interstitialHiddenPayload = void;
+    /**
+     * Fired when interstitial page was shown
+     */
+    export type interstitialShownPayload = void;
+    /**
+     * Fired when a JavaScript initiated dialog (alert, confirm, prompt, or onbeforeunload) has been
+closed.
+     */
+    export type javascriptDialogClosedPayload = {
+      /**
+       * Whether dialog was confirmed.
+       */
+      result: boolean;
+      /**
+       * User input in case of prompt.
+       */
+      userInput: string;
+    }
+    /**
+     * Fired when a JavaScript initiated dialog (alert, confirm, prompt, or onbeforeunload) is about to
+open.
+     */
+    export type javascriptDialogOpeningPayload = {
+      /**
+       * Frame url.
+       */
+      url: string;
+      /**
+       * Message that will be displayed by the dialog.
+       */
+      message: string;
+      /**
+       * Dialog type.
+       */
+      type: DialogType;
+      /**
+       * True iff browser is capable showing or acting on the given dialog. When browser has no
+dialog handler for given target, calling alert while Page domain is engaged will stall
+the page execution. Execution can be resumed via calling Page.handleJavaScriptDialog.
+       */
+      hasBrowserHandler: boolean;
+      /**
+       * Default dialog prompt.
+       */
+      defaultPrompt?: string;
+    }
+    /**
+     * Fired for top level page lifecycle events such as navigation, load, paint, etc.
+     */
+    export type lifecycleEventPayload = {
+      /**
+       * Id of the frame.
+       */
+      frameId: FrameId;
+      /**
+       * Loader identifier. Empty string if the request is fetched from worker.
+       */
+      loaderId: Network.LoaderId;
+      name: string;
+      timestamp: Network.MonotonicTime;
+    }
+    export type loadEventFiredPayload = {
+      timestamp: Network.MonotonicTime;
+    }
+    /**
+     * Fired when same-document navigation happens, e.g. due to history API usage or anchor navigation.
+     */
+    export type navigatedWithinDocumentPayload = {
+      /**
+       * Id of the frame.
+       */
+      frameId: FrameId;
+      /**
+       * Frame's new url.
+       */
+      url: string;
+    }
+    /**
+     * Compressed image data requested by the `startScreencast`.
+     */
+    export type screencastFramePayload = {
+      /**
+       * Base64-encoded compressed image.
+       */
+      data: binary;
+      /**
+       * Screencast frame metadata.
+       */
+      metadata: ScreencastFrameMetadata;
+      /**
+       * Frame number.
+       */
+      sessionId: number;
+    }
+    /**
+     * Fired when the page with currently enabled screencast was shown or hidden `.
+     */
+    export type screencastVisibilityChangedPayload = {
+      /**
+       * True if the page is visible.
+       */
+      visible: boolean;
+    }
+    /**
+     * Fired when a new window is going to be opened, via window.open(), link click, form submission,
+etc.
+     */
+    export type windowOpenPayload = {
+      /**
+       * The URL for the new window.
+       */
+      url: string;
+      /**
+       * Window name.
+       */
+      windowName: string;
+      /**
+       * An array of enabled window features.
+       */
+      windowFeatures: string[];
+      /**
+       * Whether or not it was triggered by user gesture.
+       */
+      userGesture: boolean;
+    }
+    /**
+     * Issued for every compilation cache generated. Is only available
+if Page.setGenerateCompilationCache is enabled.
+     */
+    export type compilationCacheProducedPayload = {
+      url: string;
+      /**
+       * Base64-encoded data
+       */
+      data: binary;
+    }
+    
+    /**
+     * Deprecated, please use addScriptToEvaluateOnNewDocument instead.
+     */
+    export type addScriptToEvaluateOnLoadParameters = {
+      scriptSource: string;
+    }
+    export type addScriptToEvaluateOnLoadReturnValue = {
+      /**
+       * Identifier of the added script.
+       */
+      identifier: ScriptIdentifier;
+    }
+    /**
+     * Evaluates given script in every frame upon creation (before loading frame's scripts).
+     */
+    export type addScriptToEvaluateOnNewDocumentParameters = {
+      source: string;
+      /**
+       * If specified, creates an isolated world with the given name and evaluates given script in it.
+This world name will be used as the ExecutionContextDescription::name when the corresponding
+event is emitted.
+       */
+      worldName?: string;
+    }
+    export type addScriptToEvaluateOnNewDocumentReturnValue = {
+      /**
+       * Identifier of the added script.
+       */
+      identifier: ScriptIdentifier;
+    }
+    /**
+     * Brings page to front (activates tab).
+     */
+    export type bringToFrontParameters = {
+    }
+    export type bringToFrontReturnValue = {
+    }
+    /**
+     * Capture page screenshot.
+     */
+    export type captureScreenshotParameters = {
+      /**
+       * Image compression format (defaults to png).
+       */
+      format?: "jpeg"|"png";
+      /**
+       * Compression quality from range [0..100] (jpeg only).
+       */
+      quality?: number;
+      /**
+       * Capture the screenshot of a given region only.
+       */
+      clip?: Viewport;
+      /**
+       * Capture the screenshot from the surface, rather than the view. Defaults to true.
+       */
+      fromSurface?: boolean;
+      /**
+       * Capture the screenshot beyond the viewport. Defaults to false.
+       */
+      captureBeyondViewport?: boolean;
+    }
+    export type captureScreenshotReturnValue = {
+      /**
+       * Base64-encoded image data.
+       */
+      data: binary;
+    }
+    /**
+     * Returns a snapshot of the page as a string. For MHTML format, the serialization includes
+iframes, shadow DOM, external resources, and element-inline styles.
+     */
+    export type captureSnapshotParameters = {
+      /**
+       * Format (defaults to mhtml).
+       */
+      format?: "mhtml";
+    }
+    export type captureSnapshotReturnValue = {
+      /**
+       * Serialized page data.
+       */
+      data: string;
+    }
+    /**
+     * Clears the overriden device metrics.
+     */
+    export type clearDeviceMetricsOverrideParameters = {
+    }
+    export type clearDeviceMetricsOverrideReturnValue = {
+    }
+    /**
+     * Clears the overridden Device Orientation.
+     */
+    export type clearDeviceOrientationOverrideParameters = {
+    }
+    export type clearDeviceOrientationOverrideReturnValue = {
+    }
+    /**
+     * Clears the overriden Geolocation Position and Error.
+     */
+    export type clearGeolocationOverrideParameters = {
+    }
+    export type clearGeolocationOverrideReturnValue = {
+    }
+    /**
+     * Creates an isolated world for the given frame.
+     */
+    export type createIsolatedWorldParameters = {
+      /**
+       * Id of the frame in which the isolated world should be created.
+       */
+      frameId: FrameId;
+      /**
+       * An optional name which is reported in the Execution Context.
+       */
+      worldName?: string;
+      /**
+       * Whether or not universal access should be granted to the isolated world. This is a powerful
+option, use with caution.
+       */
+      grantUniveralAccess?: boolean;
+    }
+    export type createIsolatedWorldReturnValue = {
+      /**
+       * Execution context of the isolated world.
+       */
+      executionContextId: Runtime.ExecutionContextId;
+    }
+    /**
+     * Deletes browser cookie with given name, domain and path.
+     */
+    export type deleteCookieParameters = {
+      /**
+       * Name of the cookie to remove.
+       */
+      cookieName: string;
+      /**
+       * URL to match cooke domain and path.
+       */
+      url: string;
+    }
+    export type deleteCookieReturnValue = {
+    }
+    /**
+     * Disables page domain notifications.
+     */
+    export type disableParameters = {
+    }
+    export type disableReturnValue = {
+    }
+    /**
+     * Enables page domain notifications.
+     */
+    export type enableParameters = {
+    }
+    export type enableReturnValue = {
+    }
+    export type getAppManifestParameters = {
+    }
+    export type getAppManifestReturnValue = {
+      /**
+       * Manifest location.
+       */
+      url: string;
+      errors: AppManifestError[];
+      /**
+       * Manifest content.
+       */
+      data?: string;
+      /**
+       * Parsed manifest properties
+       */
+      parsed?: AppManifestParsedProperties;
+    }
+    export type getInstallabilityErrorsParameters = {
+    }
+    export type getInstallabilityErrorsReturnValue = {
+      installabilityErrors: InstallabilityError[];
+    }
+    export type getManifestIconsParameters = {
+    }
+    export type getManifestIconsReturnValue = {
+      primaryIcon?: binary;
+    }
+    /**
+     * Returns all browser cookies. Depending on the backend support, will return detailed cookie
+information in the `cookies` field.
+     */
+    export type getCookiesParameters = {
+    }
+    export type getCookiesReturnValue = {
+      /**
+       * Array of cookie objects.
+       */
+      cookies: Network.Cookie[];
+    }
+    /**
+     * Returns present frame tree structure.
+     */
+    export type getFrameTreeParameters = {
+    }
+    export type getFrameTreeReturnValue = {
+      /**
+       * Present frame tree structure.
+       */
+      frameTree: FrameTree;
+    }
+    /**
+     * Returns metrics relating to the layouting of the page, such as viewport bounds/scale.
+     */
+    export type getLayoutMetricsParameters = {
+    }
+    export type getLayoutMetricsReturnValue = {
+      /**
+       * Metrics relating to the layout viewport.
+       */
+      layoutViewport: LayoutViewport;
+      /**
+       * Metrics relating to the visual viewport.
+       */
+      visualViewport: VisualViewport;
+      /**
+       * Size of scrollable area.
+       */
+      contentSize: DOM.Rect;
+    }
+    /**
+     * Returns navigation history for the current page.
+     */
+    export type getNavigationHistoryParameters = {
+    }
+    export type getNavigationHistoryReturnValue = {
+      /**
+       * Index of the current navigation history entry.
+       */
+      currentIndex: number;
+      /**
+       * Array of navigation history entries.
+       */
+      entries: NavigationEntry[];
+    }
+    /**
+     * Resets navigation history for the current page.
+     */
+    export type resetNavigationHistoryParameters = {
+    }
+    export type resetNavigationHistoryReturnValue = {
+    }
+    /**
+     * Returns content of the given resource.
+     */
+    export type getResourceContentParameters = {
+      /**
+       * Frame id to get resource for.
+       */
+      frameId: FrameId;
+      /**
+       * URL of the resource to get content for.
+       */
+      url: string;
+    }
+    export type getResourceContentReturnValue = {
+      /**
+       * Resource content.
+       */
+      content: string;
+      /**
+       * True, if content was served as base64.
+       */
+      base64Encoded: boolean;
+    }
+    /**
+     * Returns present frame / resource tree structure.
+     */
+    export type getResourceTreeParameters = {
+    }
+    export type getResourceTreeReturnValue = {
+      /**
+       * Present frame / resource tree structure.
+       */
+      frameTree: FrameResourceTree;
+    }
+    /**
+     * Accepts or dismisses a JavaScript initiated dialog (alert, confirm, prompt, or onbeforeunload).
+     */
+    export type handleJavaScriptDialogParameters = {
+      /**
+       * Whether to accept or dismiss the dialog.
+       */
+      accept: boolean;
+      /**
+       * The text to enter into the dialog prompt before accepting. Used only if this is a prompt
+dialog.
+       */
+      promptText?: string;
+    }
+    export type handleJavaScriptDialogReturnValue = {
+    }
+    /**
+     * Navigates current page to the given URL.
+     */
+    export type navigateParameters = {
+      /**
+       * URL to navigate the page to.
+       */
+      url: string;
+      /**
+       * Referrer URL.
+       */
+      referrer?: string;
+      /**
+       * Intended transition type.
+       */
+      transitionType?: TransitionType;
+      /**
+       * Frame id to navigate, if not specified navigates the top frame.
+       */
+      frameId?: FrameId;
+      /**
+       * Referrer-policy used for the navigation.
+       */
+      referrerPolicy?: ReferrerPolicy;
+    }
+    export type navigateReturnValue = {
+      /**
+       * Frame id that has navigated (or failed to navigate)
+       */
+      frameId: FrameId;
+      /**
+       * Loader identifier.
+       */
+      loaderId?: Network.LoaderId;
+      /**
+       * User friendly error message, present if and only if navigation has failed.
+       */
+      errorText?: string;
+    }
+    /**
+     * Navigates current page to the given history entry.
+     */
+    export type navigateToHistoryEntryParameters = {
+      /**
+       * Unique id of the entry to navigate to.
+       */
+      entryId: number;
+    }
+    export type navigateToHistoryEntryReturnValue = {
+    }
+    /**
+     * Print page as PDF.
+     */
+    export type printToPDFParameters = {
+      /**
+       * Paper orientation. Defaults to false.
+       */
+      landscape?: boolean;
+      /**
+       * Display header and footer. Defaults to false.
+       */
+      displayHeaderFooter?: boolean;
+      /**
+       * Print background graphics. Defaults to false.
+       */
+      printBackground?: boolean;
+      /**
+       * Scale of the webpage rendering. Defaults to 1.
+       */
+      scale?: number;
+      /**
+       * Paper width in inches. Defaults to 8.5 inches.
+       */
+      paperWidth?: number;
+      /**
+       * Paper height in inches. Defaults to 11 inches.
+       */
+      paperHeight?: number;
+      /**
+       * Top margin in inches. Defaults to 1cm (~0.4 inches).
+       */
+      marginTop?: number;
+      /**
+       * Bottom margin in inches. Defaults to 1cm (~0.4 inches).
+       */
+      marginBottom?: number;
+      /**
+       * Left margin in inches. Defaults to 1cm (~0.4 inches).
+       */
+      marginLeft?: number;
+      /**
+       * Right margin in inches. Defaults to 1cm (~0.4 inches).
+       */
+      marginRight?: number;
+      /**
+       * Paper ranges to print, e.g., '1-5, 8, 11-13'. Defaults to the empty string, which means
+print all pages.
+       */
+      pageRanges?: string;
+      /**
+       * Whether to silently ignore invalid but successfully parsed page ranges, such as '3-2'.
+Defaults to false.
+       */
+      ignoreInvalidPageRanges?: boolean;
+      /**
+       * HTML template for the print header. Should be valid HTML markup with following
+classes used to inject printing values into them:
+- `date`: formatted print date
+- `title`: document title
+- `url`: document location
+- `pageNumber`: current page number
+- `totalPages`: total pages in the document
+
+For example, `<span class=title></span>` would generate span containing the title.
+       */
+      headerTemplate?: string;
+      /**
+       * HTML template for the print footer. Should use the same format as the `headerTemplate`.
+       */
+      footerTemplate?: string;
+      /**
+       * Whether or not to prefer page size as defined by css. Defaults to false,
+in which case the content will be scaled to fit the paper size.
+       */
+      preferCSSPageSize?: boolean;
+      /**
+       * return as stream
+       */
+      transferMode?: "ReturnAsBase64"|"ReturnAsStream";
+    }
+    export type printToPDFReturnValue = {
+      /**
+       * Base64-encoded pdf data. Empty if |returnAsStream| is specified.
+       */
+      data: binary;
+      /**
+       * A handle of the stream that holds resulting PDF data.
+       */
+      stream?: IO.StreamHandle;
+    }
+    /**
+     * Reloads given page optionally ignoring the cache.
+     */
+    export type reloadParameters = {
+      /**
+       * If true, browser cache is ignored (as if the user pressed Shift+refresh).
+       */
+      ignoreCache?: boolean;
+      /**
+       * If set, the script will be injected into all frames of the inspected page after reload.
+Argument will be ignored if reloading dataURL origin.
+       */
+      scriptToEvaluateOnLoad?: string;
+    }
+    export type reloadReturnValue = {
+    }
+    /**
+     * Deprecated, please use removeScriptToEvaluateOnNewDocument instead.
+     */
+    export type removeScriptToEvaluateOnLoadParameters = {
+      identifier: ScriptIdentifier;
+    }
+    export type removeScriptToEvaluateOnLoadReturnValue = {
+    }
+    /**
+     * Removes given script from the list.
+     */
+    export type removeScriptToEvaluateOnNewDocumentParameters = {
+      identifier: ScriptIdentifier;
+    }
+    export type removeScriptToEvaluateOnNewDocumentReturnValue = {
+    }
+    /**
+     * Acknowledges that a screencast frame has been received by the frontend.
+     */
+    export type screencastFrameAckParameters = {
+      /**
+       * Frame number.
+       */
+      sessionId: number;
+    }
+    export type screencastFrameAckReturnValue = {
+    }
+    /**
+     * Searches for given string in resource content.
+     */
+    export type searchInResourceParameters = {
+      /**
+       * Frame id for resource to search in.
+       */
+      frameId: FrameId;
+      /**
+       * URL of the resource to search in.
+       */
+      url: string;
+      /**
+       * String to search for.
+       */
+      query: string;
+      /**
+       * If true, search is case sensitive.
+       */
+      caseSensitive?: boolean;
+      /**
+       * If true, treats string parameter as regex.
+       */
+      isRegex?: boolean;
+    }
+    export type searchInResourceReturnValue = {
+      /**
+       * List of search matches.
+       */
+      result: Debugger.SearchMatch[];
+    }
+    /**
+     * Enable Chrome's experimental ad filter on all sites.
+     */
+    export type setAdBlockingEnabledParameters = {
+      /**
+       * Whether to block ads.
+       */
+      enabled: boolean;
+    }
+    export type setAdBlockingEnabledReturnValue = {
+    }
+    /**
+     * Enable page Content Security Policy by-passing.
+     */
+    export type setBypassCSPParameters = {
+      /**
+       * Whether to bypass page CSP.
+       */
+      enabled: boolean;
+    }
+    export type setBypassCSPReturnValue = {
+    }
+    /**
+     * Overrides the values of device screen dimensions (window.screen.width, window.screen.height,
+window.innerWidth, window.innerHeight, and "device-width"/"device-height"-related CSS media
+query results).
+     */
+    export type setDeviceMetricsOverrideParameters = {
+      /**
+       * Overriding width value in pixels (minimum 0, maximum 10000000). 0 disables the override.
+       */
+      width: number;
+      /**
+       * Overriding height value in pixels (minimum 0, maximum 10000000). 0 disables the override.
+       */
+      height: number;
+      /**
+       * Overriding device scale factor value. 0 disables the override.
+       */
+      deviceScaleFactor: number;
+      /**
+       * Whether to emulate mobile device. This includes viewport meta tag, overlay scrollbars, text
+autosizing and more.
+       */
+      mobile: boolean;
+      /**
+       * Scale to apply to resulting view image.
+       */
+      scale?: number;
+      /**
+       * Overriding screen width value in pixels (minimum 0, maximum 10000000).
+       */
+      screenWidth?: number;
+      /**
+       * Overriding screen height value in pixels (minimum 0, maximum 10000000).
+       */
+      screenHeight?: number;
+      /**
+       * Overriding view X position on screen in pixels (minimum 0, maximum 10000000).
+       */
+      positionX?: number;
+      /**
+       * Overriding view Y position on screen in pixels (minimum 0, maximum 10000000).
+       */
+      positionY?: number;
+      /**
+       * Do not set visible view size, rely upon explicit setVisibleSize call.
+       */
+      dontSetVisibleSize?: boolean;
+      /**
+       * Screen orientation override.
+       */
+      screenOrientation?: Emulation.ScreenOrientation;
+      /**
+       * The viewport dimensions and scale. If not set, the override is cleared.
+       */
+      viewport?: Viewport;
+    }
+    export type setDeviceMetricsOverrideReturnValue = {
+    }
+    /**
+     * Overrides the Device Orientation.
+     */
+    export type setDeviceOrientationOverrideParameters = {
+      /**
+       * Mock alpha
+       */
+      alpha: number;
+      /**
+       * Mock beta
+       */
+      beta: number;
+      /**
+       * Mock gamma
+       */
+      gamma: number;
+    }
+    export type setDeviceOrientationOverrideReturnValue = {
+    }
+    /**
+     * Set generic font families.
+     */
+    export type setFontFamiliesParameters = {
+      /**
+       * Specifies font families to set. If a font family is not specified, it won't be changed.
+       */
+      fontFamilies: FontFamilies;
+    }
+    export type setFontFamiliesReturnValue = {
+    }
+    /**
+     * Set default font sizes.
+     */
+    export type setFontSizesParameters = {
+      /**
+       * Specifies font sizes to set. If a font size is not specified, it won't be changed.
+       */
+      fontSizes: FontSizes;
+    }
+    export type setFontSizesReturnValue = {
+    }
+    /**
+     * Sets given markup as the document's HTML.
+     */
+    export type setDocumentContentParameters = {
+      /**
+       * Frame id to set HTML for.
+       */
+      frameId: FrameId;
+      /**
+       * HTML content to set.
+       */
+      html: string;
+    }
+    export type setDocumentContentReturnValue = {
+    }
+    /**
+     * Set the behavior when downloading a file.
+     */
+    export type setDownloadBehaviorParameters = {
+      /**
+       * Whether to allow all or deny all download requests, or use default Chrome behavior if
+available (otherwise deny).
+       */
+      behavior: "deny"|"allow"|"default";
+      /**
+       * The default path to save downloaded files to. This is requred if behavior is set to 'allow'
+       */
+      downloadPath?: string;
+    }
+    export type setDownloadBehaviorReturnValue = {
+    }
+    /**
+     * Overrides the Geolocation Position or Error. Omitting any of the parameters emulates position
+unavailable.
+     */
+    export type setGeolocationOverrideParameters = {
+      /**
+       * Mock latitude
+       */
+      latitude?: number;
+      /**
+       * Mock longitude
+       */
+      longitude?: number;
+      /**
+       * Mock accuracy
+       */
+      accuracy?: number;
+    }
+    export type setGeolocationOverrideReturnValue = {
+    }
+    /**
+     * Controls whether page will emit lifecycle events.
+     */
+    export type setLifecycleEventsEnabledParameters = {
+      /**
+       * If true, starts emitting lifecycle events.
+       */
+      enabled: boolean;
+    }
+    export type setLifecycleEventsEnabledReturnValue = {
+    }
+    /**
+     * Toggles mouse event-based touch event emulation.
+     */
+    export type setTouchEmulationEnabledParameters = {
+      /**
+       * Whether the touch event emulation should be enabled.
+       */
+      enabled: boolean;
+      /**
+       * Touch/gesture events configuration. Default: current platform.
+       */
+      configuration?: "mobile"|"desktop";
+    }
+    export type setTouchEmulationEnabledReturnValue = {
+    }
+    /**
+     * Starts sending each frame using the `screencastFrame` event.
+     */
+    export type startScreencastParameters = {
+      /**
+       * Image compression format.
+       */
+      format?: "jpeg"|"png";
+      /**
+       * Compression quality from range [0..100].
+       */
+      quality?: number;
+      /**
+       * Maximum screenshot width.
+       */
+      maxWidth?: number;
+      /**
+       * Maximum screenshot height.
+       */
+      maxHeight?: number;
+      /**
+       * Send every n-th frame.
+       */
+      everyNthFrame?: number;
+    }
+    export type startScreencastReturnValue = {
+    }
+    /**
+     * Force the page stop all navigations and pending resource fetches.
+     */
+    export type stopLoadingParameters = {
+    }
+    export type stopLoadingReturnValue = {
+    }
+    /**
+     * Crashes renderer on the IO thread, generates minidumps.
+     */
+    export type crashParameters = {
+    }
+    export type crashReturnValue = {
+    }
+    /**
+     * Tries to close page, running its beforeunload hooks, if any.
+     */
+    export type closeParameters = {
+    }
+    export type closeReturnValue = {
+    }
+    /**
+     * Tries to update the web lifecycle state of the page.
+It will transition the page to the given state according to:
+https://github.com/WICG/web-lifecycle/
+     */
+    export type setWebLifecycleStateParameters = {
+      /**
+       * Target lifecycle state
+       */
+      state: "frozen"|"active";
+    }
+    export type setWebLifecycleStateReturnValue = {
+    }
+    /**
+     * Stops sending each frame in the `screencastFrame`.
+     */
+    export type stopScreencastParameters = {
+    }
+    export type stopScreencastReturnValue = {
+    }
+    /**
+     * Forces compilation cache to be generated for every subresource script.
+     */
+    export type setProduceCompilationCacheParameters = {
+      enabled: boolean;
+    }
+    export type setProduceCompilationCacheReturnValue = {
+    }
+    /**
+     * Seeds compilation cache for given url. Compilation cache does not survive
+cross-process navigation.
+     */
+    export type addCompilationCacheParameters = {
+      url: string;
+      /**
+       * Base64-encoded data
+       */
+      data: binary;
+    }
+    export type addCompilationCacheReturnValue = {
+    }
+    /**
+     * Clears seeded compilation cache.
+     */
+    export type clearCompilationCacheParameters = {
+    }
+    export type clearCompilationCacheReturnValue = {
+    }
+    /**
+     * Generates a report for testing.
+     */
+    export type generateTestReportParameters = {
+      /**
+       * Message to be displayed in the report.
+       */
+      message: string;
+      /**
+       * Specifies the endpoint group to deliver the report to.
+       */
+      group?: string;
+    }
+    export type generateTestReportReturnValue = {
+    }
+    /**
+     * Pauses page execution. Can be resumed using generic Runtime.runIfWaitingForDebugger.
+     */
+    export type waitForDebuggerParameters = {
+    }
+    export type waitForDebuggerReturnValue = {
+    }
+    /**
+     * Intercept file chooser requests and transfer control to protocol clients.
+When file chooser interception is enabled, native file chooser dialog is not shown.
+Instead, a protocol event `Page.fileChooserOpened` is emitted.
+     */
+    export type setInterceptFileChooserDialogParameters = {
+      enabled: boolean;
+    }
+    export type setInterceptFileChooserDialogReturnValue = {
+    }
+  }
+  
+  export module Performance {
+    /**
+     * Run-time execution metric.
+     */
+    export interface Metric {
+      /**
+       * Metric name.
+       */
+      name: string;
+      /**
+       * Metric value.
+       */
+      value: number;
+    }
+    
+    /**
+     * Current values of the metrics.
+     */
+    export type metricsPayload = {
+      /**
+       * Current values of the metrics.
+       */
+      metrics: Metric[];
+      /**
+       * Timestamp title.
+       */
+      title: string;
+    }
+    
+    /**
+     * Disable collecting and reporting metrics.
+     */
+    export type disableParameters = {
+    }
+    export type disableReturnValue = {
+    }
+    /**
+     * Enable collecting and reporting metrics.
+     */
+    export type enableParameters = {
+      /**
+       * Time domain to use for collecting and reporting duration metrics.
+       */
+      timeDomain?: "timeTicks"|"threadTicks";
+    }
+    export type enableReturnValue = {
+    }
+    /**
+     * Sets time domain to use for collecting and reporting duration metrics.
+Note that this must be called before enabling metrics collection. Calling
+this method while metrics collection is enabled returns an error.
+     */
+    export type setTimeDomainParameters = {
+      /**
+       * Time domain
+       */
+      timeDomain: "timeTicks"|"threadTicks";
+    }
+    export type setTimeDomainReturnValue = {
+    }
+    /**
+     * Retrieve current values of run-time metrics.
+     */
+    export type getMetricsParameters = {
+    }
+    export type getMetricsReturnValue = {
+      /**
+       * Current values for run-time metrics.
+       */
+      metrics: Metric[];
+    }
+  }
+  
+  /**
+   * Security
+   */
+  export module Security {
+    /**
+     * An internal certificate ID value.
+     */
+    export type CertificateId = number;
+    /**
+     * A description of mixed content (HTTP resources on HTTPS pages), as defined by
+https://www.w3.org/TR/mixed-content/#categories
+     */
+    export type MixedContentType = "blockable"|"optionally-blockable"|"none";
+    /**
+     * The security level of a page or resource.
+     */
+    export type SecurityState = "unknown"|"neutral"|"insecure"|"secure"|"info"|"insecure-broken";
+    /**
+     * Details about the security state of the page certificate.
+     */
+    export interface CertificateSecurityState {
+      /**
+       * Protocol name (e.g. "TLS 1.2" or "QUIC").
+       */
+      protocol: string;
+      /**
+       * Key Exchange used by the connection, or the empty string if not applicable.
+       */
+      keyExchange: string;
+      /**
+       * (EC)DH group used by the connection, if applicable.
+       */
+      keyExchangeGroup?: string;
+      /**
+       * Cipher name.
+       */
+      cipher: string;
+      /**
+       * TLS MAC. Note that AEAD ciphers do not have separate MACs.
+       */
+      mac?: string;
+      /**
+       * Page certificate.
+       */
+      certificate: string[];
+      /**
+       * Certificate subject name.
+       */
+      subjectName: string;
+      /**
+       * Name of the issuing CA.
+       */
+      issuer: string;
+      /**
+       * Certificate valid from date.
+       */
+      validFrom: Network.TimeSinceEpoch;
+      /**
+       * Certificate valid to (expiration) date
+       */
+      validTo: Network.TimeSinceEpoch;
+      /**
+       * The highest priority network error code, if the certificate has an error.
+       */
+      certificateNetworkError?: string;
+      /**
+       * True if the certificate uses a weak signature aglorithm.
+       */
+      certificateHasWeakSignature: boolean;
+      /**
+       * True if the certificate has a SHA1 signature in the chain.
+       */
+      certificateHasSha1Signature: boolean;
+      /**
+       * True if modern SSL
+       */
+      modernSSL: boolean;
+      /**
+       * True if the connection is using an obsolete SSL protocol.
+       */
+      obsoleteSslProtocol: boolean;
+      /**
+       * True if the connection is using an obsolete SSL key exchange.
+       */
+      obsoleteSslKeyExchange: boolean;
+      /**
+       * True if the connection is using an obsolete SSL cipher.
+       */
+      obsoleteSslCipher: boolean;
+      /**
+       * True if the connection is using an obsolete SSL signature.
+       */
+      obsoleteSslSignature: boolean;
+    }
+    export type SafetyTipStatus = "badReputation"|"lookalike";
+    export interface SafetyTipInfo {
+      /**
+       * Describes whether the page triggers any safety tips or reputation warnings. Default is unknown.
+       */
+      safetyTipStatus: SafetyTipStatus;
+      /**
+       * The URL the safety tip suggested ("Did you mean?"). Only filled in for lookalike matches.
+       */
+      safeUrl?: string;
+    }
+    /**
+     * Security state information about the page.
+     */
+    export interface VisibleSecurityState {
+      /**
+       * The security level of the page.
+       */
+      securityState: SecurityState;
+      /**
+       * Security state details about the page certificate.
+       */
+      certificateSecurityState?: CertificateSecurityState;
+      /**
+       * The type of Safety Tip triggered on the page. Note that this field will be set even if the Safety Tip UI was not actually shown.
+       */
+      safetyTipInfo?: SafetyTipInfo;
+      /**
+       * Array of security state issues ids.
+       */
+      securityStateIssueIds: string[];
+    }
+    /**
+     * An explanation of an factor contributing to the security state.
+     */
+    export interface SecurityStateExplanation {
+      /**
+       * Security state representing the severity of the factor being explained.
+       */
+      securityState: SecurityState;
+      /**
+       * Title describing the type of factor.
+       */
+      title: string;
+      /**
+       * Short phrase describing the type of factor.
+       */
+      summary: string;
+      /**
+       * Full text explanation of the factor.
+       */
+      description: string;
+      /**
+       * The type of mixed content described by the explanation.
+       */
+      mixedContentType: MixedContentType;
+      /**
+       * Page certificate.
+       */
+      certificate: string[];
+      /**
+       * Recommendations to fix any issues.
+       */
+      recommendations?: string[];
+    }
+    /**
+     * Information about insecure content on the page.
+     */
+    export interface InsecureContentStatus {
+      /**
+       * Always false.
+       */
+      ranMixedContent: boolean;
+      /**
+       * Always false.
+       */
+      displayedMixedContent: boolean;
+      /**
+       * Always false.
+       */
+      containedMixedForm: boolean;
+      /**
+       * Always false.
+       */
+      ranContentWithCertErrors: boolean;
+      /**
+       * Always false.
+       */
+      displayedContentWithCertErrors: boolean;
+      /**
+       * Always set to unknown.
+       */
+      ranInsecureContentStyle: SecurityState;
+      /**
+       * Always set to unknown.
+       */
+      displayedInsecureContentStyle: SecurityState;
+    }
+    /**
+     * The action to take when a certificate error occurs. continue will continue processing the
+request and cancel will cancel the request.
+     */
+    export type CertificateErrorAction = "continue"|"cancel";
+    
+    /**
+     * There is a certificate error. If overriding certificate errors is enabled, then it should be
+handled with the `handleCertificateError` command. Note: this event does not fire if the
+certificate error has been allowed internally. Only one client per target should override
+certificate errors at the same time.
+     */
+    export type certificateErrorPayload = {
+      /**
+       * The ID of the event.
+       */
+      eventId: number;
+      /**
+       * The type of the error.
+       */
+      errorType: string;
+      /**
+       * The url that was requested.
+       */
+      requestURL: string;
+    }
+    /**
+     * The security state of the page changed.
+     */
+    export type visibleSecurityStateChangedPayload = {
+      /**
+       * Security state information about the page.
+       */
+      visibleSecurityState: VisibleSecurityState;
+    }
+    /**
+     * The security state of the page changed.
+     */
+    export type securityStateChangedPayload = {
+      /**
+       * Security state.
+       */
+      securityState: SecurityState;
+      /**
+       * True if the page was loaded over cryptographic transport such as HTTPS.
+       */
+      schemeIsCryptographic: boolean;
+      /**
+       * List of explanations for the security state. If the overall security state is `insecure` or
+`warning`, at least one corresponding explanation should be included.
+       */
+      explanations: SecurityStateExplanation[];
+      /**
+       * Information about insecure content on the page.
+       */
+      insecureContentStatus: InsecureContentStatus;
+      /**
+       * Overrides user-visible description of the state.
+       */
+      summary?: string;
+    }
+    
+    /**
+     * Disables tracking security state changes.
+     */
+    export type disableParameters = {
+    }
+    export type disableReturnValue = {
+    }
+    /**
+     * Enables tracking security state changes.
+     */
+    export type enableParameters = {
+    }
+    export type enableReturnValue = {
+    }
+    /**
+     * Enable/disable whether all certificate errors should be ignored.
+     */
+    export type setIgnoreCertificateErrorsParameters = {
+      /**
+       * If true, all certificate errors will be ignored.
+       */
+      ignore: boolean;
+    }
+    export type setIgnoreCertificateErrorsReturnValue = {
+    }
+    /**
+     * Handles a certificate error that fired a certificateError event.
+     */
+    export type handleCertificateErrorParameters = {
+      /**
+       * The ID of the event.
+       */
+      eventId: number;
+      /**
+       * The action to take on the certificate error.
+       */
+      action: CertificateErrorAction;
+    }
+    export type handleCertificateErrorReturnValue = {
+    }
+    /**
+     * Enable/disable overriding certificate errors. If enabled, all certificate error events need to
+be handled by the DevTools client and should be answered with `handleCertificateError` commands.
+     */
+    export type setOverrideCertificateErrorsParameters = {
+      /**
+       * If true, certificate errors will be overridden.
+       */
+      override: boolean;
+    }
+    export type setOverrideCertificateErrorsReturnValue = {
+    }
+  }
+  
+  export module ServiceWorker {
+    export type RegistrationID = string;
+    /**
+     * ServiceWorker registration.
+     */
+    export interface ServiceWorkerRegistration {
+      registrationId: RegistrationID;
+      scopeURL: string;
+      isDeleted: boolean;
+    }
+    export type ServiceWorkerVersionRunningStatus = "stopped"|"starting"|"running"|"stopping";
+    export type ServiceWorkerVersionStatus = "new"|"installing"|"installed"|"activating"|"activated"|"redundant";
+    /**
+     * ServiceWorker version.
+     */
+    export interface ServiceWorkerVersion {
+      versionId: string;
+      registrationId: RegistrationID;
+      scriptURL: string;
+      runningStatus: ServiceWorkerVersionRunningStatus;
+      status: ServiceWorkerVersionStatus;
+      /**
+       * The Last-Modified header value of the main script.
+       */
+      scriptLastModified?: number;
+      /**
+       * The time at which the response headers of the main script were received from the server.
+For cached script it is the last time the cache entry was validated.
+       */
+      scriptResponseTime?: number;
+      controlledClients?: Target.TargetID[];
+      targetId?: Target.TargetID;
+    }
+    /**
+     * ServiceWorker error message.
+     */
+    export interface ServiceWorkerErrorMessage {
+      errorMessage: string;
+      registrationId: RegistrationID;
+      versionId: string;
+      sourceURL: string;
+      lineNumber: number;
+      columnNumber: number;
+    }
+    
+    export type workerErrorReportedPayload = {
+      errorMessage: ServiceWorkerErrorMessage;
+    }
+    export type workerRegistrationUpdatedPayload = {
+      registrations: ServiceWorkerRegistration[];
+    }
+    export type workerVersionUpdatedPayload = {
+      versions: ServiceWorkerVersion[];
+    }
+    
+    export type deliverPushMessageParameters = {
+      origin: string;
+      registrationId: RegistrationID;
+      data: string;
+    }
+    export type deliverPushMessageReturnValue = {
+    }
+    export type disableParameters = {
+    }
+    export type disableReturnValue = {
+    }
+    export type dispatchSyncEventParameters = {
+      origin: string;
+      registrationId: RegistrationID;
+      tag: string;
+      lastChance: boolean;
+    }
+    export type dispatchSyncEventReturnValue = {
+    }
+    export type dispatchPeriodicSyncEventParameters = {
+      origin: string;
+      registrationId: RegistrationID;
+      tag: string;
+    }
+    export type dispatchPeriodicSyncEventReturnValue = {
+    }
+    export type enableParameters = {
+    }
+    export type enableReturnValue = {
+    }
+    export type inspectWorkerParameters = {
+      versionId: string;
+    }
+    export type inspectWorkerReturnValue = {
+    }
+    export type setForceUpdateOnPageLoadParameters = {
+      forceUpdateOnPageLoad: boolean;
+    }
+    export type setForceUpdateOnPageLoadReturnValue = {
+    }
+    export type skipWaitingParameters = {
+      scopeURL: string;
+    }
+    export type skipWaitingReturnValue = {
+    }
+    export type startWorkerParameters = {
+      scopeURL: string;
+    }
+    export type startWorkerReturnValue = {
+    }
+    export type stopAllWorkersParameters = {
+    }
+    export type stopAllWorkersReturnValue = {
+    }
+    export type stopWorkerParameters = {
+      versionId: string;
+    }
+    export type stopWorkerReturnValue = {
+    }
+    export type unregisterParameters = {
+      scopeURL: string;
+    }
+    export type unregisterReturnValue = {
+    }
+    export type updateRegistrationParameters = {
+      scopeURL: string;
+    }
+    export type updateRegistrationReturnValue = {
+    }
+  }
+  
+  export module Storage {
+    /**
+     * Enum of possible storage types.
+     */
+    export type StorageType = "appcache"|"cookies"|"file_systems"|"indexeddb"|"local_storage"|"shader_cache"|"websql"|"service_workers"|"cache_storage"|"all"|"other";
+    /**
+     * Usage for a storage type.
+     */
+    export interface UsageForType {
+      /**
+       * Name of storage type.
+       */
+      storageType: StorageType;
+      /**
+       * Storage usage (bytes).
+       */
+      usage: number;
+    }
+    
+    /**
+     * A cache's contents have been modified.
+     */
+    export type cacheStorageContentUpdatedPayload = {
+      /**
+       * Origin to update.
+       */
+      origin: string;
+      /**
+       * Name of cache in origin.
+       */
+      cacheName: string;
+    }
+    /**
+     * A cache has been added/deleted.
+     */
+    export type cacheStorageListUpdatedPayload = {
+      /**
+       * Origin to update.
+       */
+      origin: string;
+    }
+    /**
+     * The origin's IndexedDB object store has been modified.
+     */
+    export type indexedDBContentUpdatedPayload = {
+      /**
+       * Origin to update.
+       */
+      origin: string;
+      /**
+       * Database to update.
+       */
+      databaseName: string;
+      /**
+       * ObjectStore to update.
+       */
+      objectStoreName: string;
+    }
+    /**
+     * The origin's IndexedDB database list has been modified.
+     */
+    export type indexedDBListUpdatedPayload = {
+      /**
+       * Origin to update.
+       */
+      origin: string;
+    }
+    
+    /**
+     * Clears storage for origin.
+     */
+    export type clearDataForOriginParameters = {
+      /**
+       * Security origin.
+       */
+      origin: string;
+      /**
+       * Comma separated list of StorageType to clear.
+       */
+      storageTypes: string;
+    }
+    export type clearDataForOriginReturnValue = {
+    }
+    /**
+     * Returns all browser cookies.
+     */
+    export type getCookiesParameters = {
+      /**
+       * Browser context to use when called on the browser endpoint.
+       */
+      browserContextId?: Browser.BrowserContextID;
+    }
+    export type getCookiesReturnValue = {
+      /**
+       * Array of cookie objects.
+       */
+      cookies: Network.Cookie[];
+    }
+    /**
+     * Sets given cookies.
+     */
+    export type setCookiesParameters = {
+      /**
+       * Cookies to be set.
+       */
+      cookies: Network.CookieParam[];
+      /**
+       * Browser context to use when called on the browser endpoint.
+       */
+      browserContextId?: Browser.BrowserContextID;
+    }
+    export type setCookiesReturnValue = {
+    }
+    /**
+     * Clears cookies.
+     */
+    export type clearCookiesParameters = {
+      /**
+       * Browser context to use when called on the browser endpoint.
+       */
+      browserContextId?: Browser.BrowserContextID;
+    }
+    export type clearCookiesReturnValue = {
+    }
+    /**
+     * Returns usage and quota in bytes.
+     */
+    export type getUsageAndQuotaParameters = {
+      /**
+       * Security origin.
+       */
+      origin: string;
+    }
+    export type getUsageAndQuotaReturnValue = {
+      /**
+       * Storage usage (bytes).
+       */
+      usage: number;
+      /**
+       * Storage quota (bytes).
+       */
+      quota: number;
+      /**
+       * Whether or not the origin has an active storage quota override
+       */
+      overrideActive: boolean;
+      /**
+       * Storage usage per type (bytes).
+       */
+      usageBreakdown: UsageForType[];
+    }
+    /**
+     * Override quota for the specified origin
+     */
+    export type overrideQuotaForOriginParameters = {
+      /**
+       * Security origin.
+       */
+      origin: string;
+      /**
+       * The quota size (in bytes) to override the original quota with.
+If this is called multiple times, the overriden quota will be equal to
+the quotaSize provided in the final call. If this is called without
+specifying a quotaSize, the quota will be reset to the default value for
+the specified origin. If this is called multiple times with different
+origins, the override will be maintained for each origin until it is
+disabled (called without a quotaSize).
+       */
+      quotaSize?: number;
+    }
+    export type overrideQuotaForOriginReturnValue = {
+    }
+    /**
+     * Registers origin to be notified when an update occurs to its cache storage list.
+     */
+    export type trackCacheStorageForOriginParameters = {
+      /**
+       * Security origin.
+       */
+      origin: string;
+    }
+    export type trackCacheStorageForOriginReturnValue = {
+    }
+    /**
+     * Registers origin to be notified when an update occurs to its IndexedDB.
+     */
+    export type trackIndexedDBForOriginParameters = {
+      /**
+       * Security origin.
+       */
+      origin: string;
+    }
+    export type trackIndexedDBForOriginReturnValue = {
+    }
+    /**
+     * Unregisters origin from receiving notifications for cache storage.
+     */
+    export type untrackCacheStorageForOriginParameters = {
+      /**
+       * Security origin.
+       */
+      origin: string;
+    }
+    export type untrackCacheStorageForOriginReturnValue = {
+    }
+    /**
+     * Unregisters origin from receiving notifications for IndexedDB.
+     */
+    export type untrackIndexedDBForOriginParameters = {
+      /**
+       * Security origin.
+       */
+      origin: string;
+    }
+    export type untrackIndexedDBForOriginReturnValue = {
+    }
+  }
+  
+  /**
+   * The SystemInfo domain defines methods and events for querying low-level system information.
+   */
+  export module SystemInfo {
+    /**
+     * Describes a single graphics processor (GPU).
+     */
+    export interface GPUDevice {
+      /**
+       * PCI ID of the GPU vendor, if available; 0 otherwise.
+       */
+      vendorId: number;
+      /**
+       * PCI ID of the GPU device, if available; 0 otherwise.
+       */
+      deviceId: number;
+      /**
+       * Sub sys ID of the GPU, only available on Windows.
+       */
+      subSysId?: number;
+      /**
+       * Revision of the GPU, only available on Windows.
+       */
+      revision?: number;
+      /**
+       * String description of the GPU vendor, if the PCI ID is not available.
+       */
+      vendorString: string;
+      /**
+       * String description of the GPU device, if the PCI ID is not available.
+       */
+      deviceString: string;
+      /**
+       * String description of the GPU driver vendor.
+       */
+      driverVendor: string;
+      /**
+       * String description of the GPU driver version.
+       */
+      driverVersion: string;
+    }
+    /**
+     * Describes the width and height dimensions of an entity.
+     */
+    export interface Size {
+      /**
+       * Width in pixels.
+       */
+      width: number;
+      /**
+       * Height in pixels.
+       */
+      height: number;
+    }
+    /**
+     * Describes a supported video decoding profile with its associated minimum and
+maximum resolutions.
+     */
+    export interface VideoDecodeAcceleratorCapability {
+      /**
+       * Video codec profile that is supported, e.g. VP9 Profile 2.
+       */
+      profile: string;
+      /**
+       * Maximum video dimensions in pixels supported for this |profile|.
+       */
+      maxResolution: Size;
+      /**
+       * Minimum video dimensions in pixels supported for this |profile|.
+       */
+      minResolution: Size;
+    }
+    /**
+     * Describes a supported video encoding profile with its associated maximum
+resolution and maximum framerate.
+     */
+    export interface VideoEncodeAcceleratorCapability {
+      /**
+       * Video codec profile that is supported, e.g H264 Main.
+       */
+      profile: string;
+      /**
+       * Maximum video dimensions in pixels supported for this |profile|.
+       */
+      maxResolution: Size;
+      /**
+       * Maximum encoding framerate in frames per second supported for this
+|profile|, as fraction's numerator and denominator, e.g. 24/1 fps,
+24000/1001 fps, etc.
+       */
+      maxFramerateNumerator: number;
+      maxFramerateDenominator: number;
+    }
+    /**
+     * YUV subsampling type of the pixels of a given image.
+     */
+    export type SubsamplingFormat = "yuv420"|"yuv422"|"yuv444";
+    /**
+     * Image format of a given image.
+     */
+    export type ImageType = "jpeg"|"webp"|"unknown";
+    /**
+     * Describes a supported image decoding profile with its associated minimum and
+maximum resolutions and subsampling.
+     */
+    export interface ImageDecodeAcceleratorCapability {
+      /**
+       * Image coded, e.g. Jpeg.
+       */
+      imageType: ImageType;
+      /**
+       * Maximum supported dimensions of the image in pixels.
+       */
+      maxDimensions: Size;
+      /**
+       * Minimum supported dimensions of the image in pixels.
+       */
+      minDimensions: Size;
+      /**
+       * Optional array of supported subsampling formats, e.g. 4:2:0, if known.
+       */
+      subsamplings: SubsamplingFormat[];
+    }
+    /**
+     * Provides information about the GPU(s) on the system.
+     */
+    export interface GPUInfo {
+      /**
+       * The graphics devices on the system. Element 0 is the primary GPU.
+       */
+      devices: GPUDevice[];
+      /**
+       * An optional dictionary of additional GPU related attributes.
+       */
+      auxAttributes?: { [key: string]: string };
+      /**
+       * An optional dictionary of graphics features and their status.
+       */
+      featureStatus?: { [key: string]: string };
+      /**
+       * An optional array of GPU driver bug workarounds.
+       */
+      driverBugWorkarounds: string[];
+      /**
+       * Supported accelerated video decoding capabilities.
+       */
+      videoDecoding: VideoDecodeAcceleratorCapability[];
+      /**
+       * Supported accelerated video encoding capabilities.
+       */
+      videoEncoding: VideoEncodeAcceleratorCapability[];
+      /**
+       * Supported accelerated image decoding capabilities.
+       */
+      imageDecoding: ImageDecodeAcceleratorCapability[];
+    }
+    /**
+     * Represents process info.
+     */
+    export interface ProcessInfo {
+      /**
+       * Specifies process type.
+       */
+      type: string;
+      /**
+       * Specifies process id.
+       */
+      id: number;
+      /**
+       * Specifies cumulative CPU usage in seconds across all threads of the
+process since the process start.
+       */
+      cpuTime: number;
+    }
+    
+    
+    /**
+     * Returns information about the system.
+     */
+    export type getInfoParameters = {
+    }
+    export type getInfoReturnValue = {
+      /**
+       * Information about the GPUs on the system.
+       */
+      gpu: GPUInfo;
+      /**
+       * A platform-dependent description of the model of the machine. On Mac OS, this is, for
+example, 'MacBookPro'. Will be the empty string if not supported.
+       */
+      modelName: string;
+      /**
+       * A platform-dependent description of the version of the machine. On Mac OS, this is, for
+example, '10.1'. Will be the empty string if not supported.
+       */
+      modelVersion: string;
+      /**
+       * The command line string used to launch the browser. Will be the empty string if not
+supported.
+       */
+      commandLine: string;
+    }
+    /**
+     * Returns information about all running processes.
+     */
+    export type getProcessInfoParameters = {
+    }
+    export type getProcessInfoReturnValue = {
+      /**
+       * An array of process info blocks.
+       */
+      processInfo: ProcessInfo[];
+    }
+  }
+  
+  /**
+   * Supports additional targets discovery and allows to attach to them.
+   */
+  export module Target {
+    export type TargetID = string;
+    /**
+     * Unique identifier of attached debugging session.
+     */
+    export type SessionID = string;
+    export interface TargetInfo {
+      targetId: TargetID;
+      type: string;
+      title: string;
+      url: string;
+      /**
+       * Whether the target has an attached client.
+       */
+      attached: boolean;
+      /**
+       * Opener target Id
+       */
+      openerId?: TargetID;
+      /**
+       * Whether the target has access to the originating window.
+       */
+      canAccessOpener: boolean;
+      /**
+       * Frame id of originating window (is only set if target has an opener).
+       */
+      openerFrameId?: Page.FrameId;
+      browserContextId?: Browser.BrowserContextID;
+    }
+    export interface RemoteLocation {
+      host: string;
+      port: number;
+    }
+    
+    /**
+     * Issued when attached to target because of auto-attach or `attachToTarget` command.
+     */
+    export type attachedToTargetPayload = {
+      /**
+       * Identifier assigned to the session used to send/receive messages.
+       */
+      sessionId: SessionID;
+      targetInfo: TargetInfo;
+      waitingForDebugger: boolean;
+    }
+    /**
+     * Issued when detached from target for any reason (including `detachFromTarget` command). Can be
+issued multiple times per target if multiple sessions have been attached to it.
+     */
+    export type detachedFromTargetPayload = {
+      /**
+       * Detached session identifier.
+       */
+      sessionId: SessionID;
+      /**
+       * Deprecated.
+       */
+      targetId?: TargetID;
+    }
+    /**
+     * Notifies about a new protocol message received from the session (as reported in
+`attachedToTarget` event).
+     */
+    export type receivedMessageFromTargetPayload = {
+      /**
+       * Identifier of a session which sends a message.
+       */
+      sessionId: SessionID;
+      message: string;
+      /**
+       * Deprecated.
+       */
+      targetId?: TargetID;
+    }
+    /**
+     * Issued when a possible inspection target is created.
+     */
+    export type targetCreatedPayload = {
+      targetInfo: TargetInfo;
+    }
+    /**
+     * Issued when a target is destroyed.
+     */
+    export type targetDestroyedPayload = {
+      targetId: TargetID;
+    }
+    /**
+     * Issued when a target has crashed.
+     */
+    export type targetCrashedPayload = {
+      targetId: TargetID;
+      /**
+       * Termination status type.
+       */
+      status: string;
+      /**
+       * Termination error code.
+       */
+      errorCode: number;
+    }
+    /**
+     * Issued when some information about a target has changed. This only happens between
+`targetCreated` and `targetDestroyed`.
+     */
+    export type targetInfoChangedPayload = {
+      targetInfo: TargetInfo;
+    }
+    
+    /**
+     * Activates (focuses) the target.
+     */
+    export type activateTargetParameters = {
+      targetId: TargetID;
+    }
+    export type activateTargetReturnValue = {
+    }
+    /**
+     * Attaches to the target with given id.
+     */
+    export type attachToTargetParameters = {
+      targetId: TargetID;
+      /**
+       * Enables "flat" access to the session via specifying sessionId attribute in the commands.
+We plan to make this the default, deprecate non-flattened mode,
+and eventually retire it. See crbug.com/991325.
+       */
+      flatten?: boolean;
+    }
+    export type attachToTargetReturnValue = {
+      /**
+       * Id assigned to the session.
+       */
+      sessionId: SessionID;
+    }
+    /**
+     * Attaches to the browser target, only uses flat sessionId mode.
+     */
+    export type attachToBrowserTargetParameters = {
+    }
+    export type attachToBrowserTargetReturnValue = {
+      /**
+       * Id assigned to the session.
+       */
+      sessionId: SessionID;
+    }
+    /**
+     * Closes the target. If the target is a page that gets closed too.
+     */
+    export type closeTargetParameters = {
+      targetId: TargetID;
+    }
+    export type closeTargetReturnValue = {
+      /**
+       * Always set to true. If an error occurs, the response indicates protocol error.
+       */
+      success: boolean;
+    }
+    /**
+     * Inject object to the target's main frame that provides a communication
+channel with browser target.
+
+Injected object will be available as `window[bindingName]`.
+
+The object has the follwing API:
+- `binding.send(json)` - a method to send messages over the remote debugging protocol
+- `binding.onmessage = json => handleMessage(json)` - a callback that will be called for the protocol notifications and command responses.
+     */
+    export type exposeDevToolsProtocolParameters = {
+      targetId: TargetID;
+      /**
+       * Binding name, 'cdp' if not specified.
+       */
+      bindingName?: string;
+    }
+    export type exposeDevToolsProtocolReturnValue = {
+    }
+    /**
+     * Creates a new empty BrowserContext. Similar to an incognito profile but you can have more than
+one.
+     */
+    export type createBrowserContextParameters = {
+      /**
+       * If specified, disposes this context when debugging session disconnects.
+       */
+      disposeOnDetach?: boolean;
+      /**
+       * Proxy server, similar to the one passed to --proxy-server
+       */
+      proxyServer?: string;
+      /**
+       * Proxy bypass list, similar to the one passed to --proxy-bypass-list
+       */
+      proxyBypassList?: string;
+    }
+    export type createBrowserContextReturnValue = {
+      /**
+       * The id of the context created.
+       */
+      browserContextId: Browser.BrowserContextID;
+    }
+    /**
+     * Returns all browser contexts created with `Target.createBrowserContext` method.
+     */
+    export type getBrowserContextsParameters = {
+    }
+    export type getBrowserContextsReturnValue = {
+      /**
+       * An array of browser context ids.
+       */
+      browserContextIds: Browser.BrowserContextID[];
+    }
+    /**
+     * Creates a new page.
+     */
+    export type createTargetParameters = {
+      /**
+       * The initial URL the page will be navigated to.
+       */
+      url: string;
+      /**
+       * Frame width in DIP (headless chrome only).
+       */
+      width?: number;
+      /**
+       * Frame height in DIP (headless chrome only).
+       */
+      height?: number;
+      /**
+       * The browser context to create the page in.
+       */
+      browserContextId?: Browser.BrowserContextID;
+      /**
+       * Whether BeginFrames for this target will be controlled via DevTools (headless chrome only,
+not supported on MacOS yet, false by default).
+       */
+      enableBeginFrameControl?: boolean;
+      /**
+       * Whether to create a new Window or Tab (chrome-only, false by default).
+       */
+      newWindow?: boolean;
+      /**
+       * Whether to create the target in background or foreground (chrome-only,
+false by default).
+       */
+      background?: boolean;
+    }
+    export type createTargetReturnValue = {
+      /**
+       * The id of the page opened.
+       */
+      targetId: TargetID;
+    }
+    /**
+     * Detaches session with given id.
+     */
+    export type detachFromTargetParameters = {
+      /**
+       * Session to detach.
+       */
+      sessionId?: SessionID;
+      /**
+       * Deprecated.
+       */
+      targetId?: TargetID;
+    }
+    export type detachFromTargetReturnValue = {
+    }
+    /**
+     * Deletes a BrowserContext. All the belonging pages will be closed without calling their
+beforeunload hooks.
+     */
+    export type disposeBrowserContextParameters = {
+      browserContextId: Browser.BrowserContextID;
+    }
+    export type disposeBrowserContextReturnValue = {
+    }
+    /**
+     * Returns information about a target.
+     */
+    export type getTargetInfoParameters = {
+      targetId?: TargetID;
+    }
+    export type getTargetInfoReturnValue = {
+      targetInfo: TargetInfo;
+    }
+    /**
+     * Retrieves a list of available targets.
+     */
+    export type getTargetsParameters = {
+    }
+    export type getTargetsReturnValue = {
+      /**
+       * The list of targets.
+       */
+      targetInfos: TargetInfo[];
+    }
+    /**
+     * Sends protocol message over session with given id.
+Consider using flat mode instead; see commands attachToTarget, setAutoAttach,
+and crbug.com/991325.
+     */
+    export type sendMessageToTargetParameters = {
+      message: string;
+      /**
+       * Identifier of the session.
+       */
+      sessionId?: SessionID;
+      /**
+       * Deprecated.
+       */
+      targetId?: TargetID;
+    }
+    export type sendMessageToTargetReturnValue = {
+    }
+    /**
+     * Controls whether to automatically attach to new targets which are considered to be related to
+this one. When turned on, attaches to all existing related targets as well. When turned off,
+automatically detaches from all currently attached targets.
+     */
+    export type setAutoAttachParameters = {
+      /**
+       * Whether to auto-attach to related targets.
+       */
+      autoAttach: boolean;
+      /**
+       * Whether to pause new targets when attaching to them. Use `Runtime.runIfWaitingForDebugger`
+to run paused targets.
+       */
+      waitForDebuggerOnStart: boolean;
+      /**
+       * Enables "flat" access to the session via specifying sessionId attribute in the commands.
+We plan to make this the default, deprecate non-flattened mode,
+and eventually retire it. See crbug.com/991325.
+       */
+      flatten?: boolean;
+    }
+    export type setAutoAttachReturnValue = {
+    }
+    /**
+     * Controls whether to discover available targets and notify via
+`targetCreated/targetInfoChanged/targetDestroyed` events.
+     */
+    export type setDiscoverTargetsParameters = {
+      /**
+       * Whether to discover available targets.
+       */
+      discover: boolean;
+    }
+    export type setDiscoverTargetsReturnValue = {
+    }
+    /**
+     * Enables target discovery for the specified locations, when `setDiscoverTargets` was set to
+`true`.
+     */
+    export type setRemoteLocationsParameters = {
+      /**
+       * List of remote locations.
+       */
+      locations: RemoteLocation[];
+    }
+    export type setRemoteLocationsReturnValue = {
+    }
+  }
+  
+  /**
+   * The Tethering domain defines methods and events for browser port binding.
+   */
+  export module Tethering {
+    
+    /**
+     * Informs that port was successfully bound and got a specified connection id.
+     */
+    export type acceptedPayload = {
+      /**
+       * Port number that was successfully bound.
+       */
+      port: number;
+      /**
+       * Connection id to be used.
+       */
+      connectionId: string;
+    }
+    
+    /**
+     * Request browser port binding.
+     */
+    export type bindParameters = {
+      /**
+       * Port number to bind.
+       */
+      port: number;
+    }
+    export type bindReturnValue = {
+    }
+    /**
+     * Request browser port unbinding.
+     */
+    export type unbindParameters = {
+      /**
+       * Port number to unbind.
+       */
+      port: number;
+    }
+    export type unbindReturnValue = {
+    }
+  }
+  
+  export module Tracing {
+    /**
+     * Configuration for memory dump. Used only when "memory-infra" category is enabled.
+     */
+    export type MemoryDumpConfig = { [key: string]: string };
+    export interface TraceConfig {
+      /**
+       * Controls how the trace buffer stores data.
+       */
+      recordMode?: "recordUntilFull"|"recordContinuously"|"recordAsMuchAsPossible"|"echoToConsole";
+      /**
+       * Turns on JavaScript stack sampling.
+       */
+      enableSampling?: boolean;
+      /**
+       * Turns on system tracing.
+       */
+      enableSystrace?: boolean;
+      /**
+       * Turns on argument filter.
+       */
+      enableArgumentFilter?: boolean;
+      /**
+       * Included category filters.
+       */
+      includedCategories?: string[];
+      /**
+       * Excluded category filters.
+       */
+      excludedCategories?: string[];
+      /**
+       * Configuration to synthesize the delays in tracing.
+       */
+      syntheticDelays?: string[];
+      /**
+       * Configuration for memory dump triggers. Used only when "memory-infra" category is enabled.
+       */
+      memoryDumpConfig?: MemoryDumpConfig;
+    }
+    /**
+     * Data format of a trace. Can be either the legacy JSON format or the
+protocol buffer format. Note that the JSON format will be deprecated soon.
+     */
+    export type StreamFormat = "json"|"proto";
+    /**
+     * Compression type to use for traces returned via streams.
+     */
+    export type StreamCompression = "none"|"gzip";
+    /**
+     * Details exposed when memory request explicitly declared.
+Keep consistent with memory_dump_request_args.h and
+memory_instrumentation.mojom
+     */
+    export type MemoryDumpLevelOfDetail = "background"|"light"|"detailed";
+    
+    export type bufferUsagePayload = {
+      /**
+       * A number in range [0..1] that indicates the used size of event buffer as a fraction of its
+total size.
+       */
+      percentFull?: number;
+      /**
+       * An approximate number of events in the trace log.
+       */
+      eventCount?: number;
+      /**
+       * A number in range [0..1] that indicates the used size of event buffer as a fraction of its
+total size.
+       */
+      value?: number;
+    }
+    /**
+     * Contains an bucket of collected trace events. When tracing is stopped collected events will be
+send as a sequence of dataCollected events followed by tracingComplete event.
+     */
+    export type dataCollectedPayload = {
+      value: { [key: string]: string }[];
+    }
+    /**
+     * Signals that tracing is stopped and there is no trace buffers pending flush, all data were
+delivered via dataCollected events.
+     */
+    export type tracingCompletePayload = {
+      /**
+       * Indicates whether some trace data is known to have been lost, e.g. because the trace ring
+buffer wrapped around.
+       */
+      dataLossOccurred: boolean;
+      /**
+       * A handle of the stream that holds resulting trace data.
+       */
+      stream?: IO.StreamHandle;
+      /**
+       * Trace data format of returned stream.
+       */
+      traceFormat?: StreamFormat;
+      /**
+       * Compression format of returned stream.
+       */
+      streamCompression?: StreamCompression;
+    }
+    
+    /**
+     * Stop trace events collection.
+     */
+    export type endParameters = {
+    }
+    export type endReturnValue = {
+    }
+    /**
+     * Gets supported tracing categories.
+     */
+    export type getCategoriesParameters = {
+    }
+    export type getCategoriesReturnValue = {
+      /**
+       * A list of supported tracing categories.
+       */
+      categories: string[];
+    }
+    /**
+     * Record a clock sync marker in the trace.
+     */
+    export type recordClockSyncMarkerParameters = {
+      /**
+       * The ID of this clock sync marker
+       */
+      syncId: string;
+    }
+    export type recordClockSyncMarkerReturnValue = {
+    }
+    /**
+     * Request a global memory dump.
+     */
+    export type requestMemoryDumpParameters = {
+      /**
+       * Enables more deterministic results by forcing garbage collection
+       */
+      deterministic?: boolean;
+      /**
+       * Specifies level of details in memory dump. Defaults to "detailed".
+       */
+      levelOfDetail?: MemoryDumpLevelOfDetail;
+    }
+    export type requestMemoryDumpReturnValue = {
+      /**
+       * GUID of the resulting global memory dump.
+       */
+      dumpGuid: string;
+      /**
+       * True iff the global memory dump succeeded.
+       */
+      success: boolean;
+    }
+    /**
+     * Start trace events collection.
+     */
+    export type startParameters = {
+      /**
+       * Category/tag filter
+       */
+      categories?: string;
+      /**
+       * Tracing options
+       */
+      options?: string;
+      /**
+       * If set, the agent will issue bufferUsage events at this interval, specified in milliseconds
+       */
+      bufferUsageReportingInterval?: number;
+      /**
+       * Whether to report trace events as series of dataCollected events or to save trace to a
+stream (defaults to `ReportEvents`).
+       */
+      transferMode?: "ReportEvents"|"ReturnAsStream";
+      /**
+       * Trace data format to use. This only applies when using `ReturnAsStream`
+transfer mode (defaults to `json`).
+       */
+      streamFormat?: StreamFormat;
+      /**
+       * Compression format to use. This only applies when using `ReturnAsStream`
+transfer mode (defaults to `none`)
+       */
+      streamCompression?: StreamCompression;
+      traceConfig?: TraceConfig;
+    }
+    export type startReturnValue = {
+    }
+  }
+  
+  /**
+   * A domain for letting clients substitute browser's network layer with client code.
+   */
+  export module Fetch {
+    /**
+     * Unique request identifier.
+     */
+    export type RequestId = string;
+    /**
+     * Stages of the request to handle. Request will intercept before the request is
+sent. Response will intercept after the response is received (but before response
+body is received.
+     */
+    export type RequestStage = "Request"|"Response";
+    export interface RequestPattern {
+      /**
+       * Wildcards ('*' -> zero or more, '?' -> exactly one) are allowed. Escape character is
+backslash. Omitting is equivalent to "*".
+       */
+      urlPattern?: string;
+      /**
+       * If set, only requests for matching resource types will be intercepted.
+       */
+      resourceType?: Network.ResourceType;
+      /**
+       * Stage at wich to begin intercepting requests. Default is Request.
+       */
+      requestStage?: RequestStage;
+    }
+    /**
+     * Response HTTP header entry
+     */
+    export interface HeaderEntry {
+      name: string;
+      value: string;
+    }
+    /**
+     * Authorization challenge for HTTP status code 401 or 407.
+     */
+    export interface AuthChallenge {
+      /**
+       * Source of the authentication challenge.
+       */
+      source?: "Server"|"Proxy";
+      /**
+       * Origin of the challenger.
+       */
+      origin: string;
+      /**
+       * The authentication scheme used, such as basic or digest
+       */
+      scheme: string;
+      /**
+       * The realm of the challenge. May be empty.
+       */
+      realm: string;
+    }
+    /**
+     * Response to an AuthChallenge.
+     */
+    export interface AuthChallengeResponse {
+      /**
+       * The decision on what to do in response to the authorization challenge.  Default means
+deferring to the default behavior of the net stack, which will likely either the Cancel
+authentication or display a popup dialog box.
+       */
+      response: "Default"|"CancelAuth"|"ProvideCredentials";
+      /**
+       * The username to provide, possibly empty. Should only be set if response is
+ProvideCredentials.
+       */
+      username?: string;
+      /**
+       * The password to provide, possibly empty. Should only be set if response is
+ProvideCredentials.
+       */
+      password?: string;
+    }
+    
+    /**
+     * Issued when the domain is enabled and the request URL matches the
+specified filter. The request is paused until the client responds
+with one of continueRequest, failRequest or fulfillRequest.
+The stage of the request can be determined by presence of responseErrorReason
+and responseStatusCode -- the request is at the response stage if either
+of these fields is present and in the request stage otherwise.
+     */
+    export type requestPausedPayload = {
+      /**
+       * Each request the page makes will have a unique id.
+       */
+      requestId: RequestId;
+      /**
+       * The details of the request.
+       */
+      request: Network.Request;
+      /**
+       * The id of the frame that initiated the request.
+       */
+      frameId: Page.FrameId;
+      /**
+       * How the requested resource will be used.
+       */
+      resourceType: Network.ResourceType;
+      /**
+       * Response error if intercepted at response stage.
+       */
+      responseErrorReason?: Network.ErrorReason;
+      /**
+       * Response code if intercepted at response stage.
+       */
+      responseStatusCode?: number;
+      /**
+       * Response headers if intercepted at the response stage.
+       */
+      responseHeaders?: HeaderEntry[];
+      /**
+       * If the intercepted request had a corresponding Network.requestWillBeSent event fired for it,
+then this networkId will be the same as the requestId present in the requestWillBeSent event.
+       */
+      networkId?: RequestId;
+    }
+    /**
+     * Issued when the domain is enabled with handleAuthRequests set to true.
+The request is paused until client responds with continueWithAuth.
+     */
+    export type authRequiredPayload = {
+      /**
+       * Each request the page makes will have a unique id.
+       */
+      requestId: RequestId;
+      /**
+       * The details of the request.
+       */
+      request: Network.Request;
+      /**
+       * The id of the frame that initiated the request.
+       */
+      frameId: Page.FrameId;
+      /**
+       * How the requested resource will be used.
+       */
+      resourceType: Network.ResourceType;
+      /**
+       * Details of the Authorization Challenge encountered.
+If this is set, client should respond with continueRequest that
+contains AuthChallengeResponse.
+       */
+      authChallenge: AuthChallenge;
+    }
+    
+    /**
+     * Disables the fetch domain.
+     */
+    export type disableParameters = {
+    }
+    export type disableReturnValue = {
+    }
+    /**
+     * Enables issuing of requestPaused events. A request will be paused until client
+calls one of failRequest, fulfillRequest or continueRequest/continueWithAuth.
+     */
+    export type enableParameters = {
+      /**
+       * If specified, only requests matching any of these patterns will produce
+fetchRequested event and will be paused until clients response. If not set,
+all requests will be affected.
+       */
+      patterns?: RequestPattern[];
+      /**
+       * If true, authRequired events will be issued and requests will be paused
+expecting a call to continueWithAuth.
+       */
+      handleAuthRequests?: boolean;
+    }
+    export type enableReturnValue = {
+    }
+    /**
+     * Causes the request to fail with specified reason.
+     */
+    export type failRequestParameters = {
+      /**
+       * An id the client received in requestPaused event.
+       */
+      requestId: RequestId;
+      /**
+       * Causes the request to fail with the given reason.
+       */
+      errorReason: Network.ErrorReason;
+    }
+    export type failRequestReturnValue = {
+    }
+    /**
+     * Provides response to the request.
+     */
+    export type fulfillRequestParameters = {
+      /**
+       * An id the client received in requestPaused event.
+       */
+      requestId: RequestId;
+      /**
+       * An HTTP response code.
+       */
+      responseCode: number;
+      /**
+       * Response headers.
+       */
+      responseHeaders?: HeaderEntry[];
+      /**
+       * Alternative way of specifying response headers as a \0-separated
+series of name: value pairs. Prefer the above method unless you
+need to represent some non-UTF8 values that can't be transmitted
+over the protocol as text.
+       */
+      binaryResponseHeaders?: binary;
+      /**
+       * A response body.
+       */
+      body?: binary;
+      /**
+       * A textual representation of responseCode.
+If absent, a standard phrase matching responseCode is used.
+       */
+      responsePhrase?: string;
+    }
+    export type fulfillRequestReturnValue = {
+    }
+    /**
+     * Continues the request, optionally modifying some of its parameters.
+     */
+    export type continueRequestParameters = {
+      /**
+       * An id the client received in requestPaused event.
+       */
+      requestId: RequestId;
+      /**
+       * If set, the request url will be modified in a way that's not observable by page.
+       */
+      url?: string;
+      /**
+       * If set, the request method is overridden.
+       */
+      method?: string;
+      /**
+       * If set, overrides the post data in the request.
+       */
+      postData?: binary;
+      /**
+       * If set, overrides the request headers.
+       */
+      headers?: HeaderEntry[];
+    }
+    export type continueRequestReturnValue = {
+    }
+    /**
+     * Continues a request supplying authChallengeResponse following authRequired event.
+     */
+    export type continueWithAuthParameters = {
+      /**
+       * An id the client received in authRequired event.
+       */
+      requestId: RequestId;
+      /**
+       * Response to  with an authChallenge.
+       */
+      authChallengeResponse: AuthChallengeResponse;
+    }
+    export type continueWithAuthReturnValue = {
+    }
+    /**
+     * Causes the body of the response to be received from the server and
+returned as a single string. May only be issued for a request that
+is paused in the Response stage and is mutually exclusive with
+takeResponseBodyForInterceptionAsStream. Calling other methods that
+affect the request or disabling fetch domain before body is received
+results in an undefined behavior.
+     */
+    export type getResponseBodyParameters = {
+      /**
+       * Identifier for the intercepted request to get body for.
+       */
+      requestId: RequestId;
+    }
+    export type getResponseBodyReturnValue = {
+      /**
+       * Response body.
+       */
+      body: string;
+      /**
+       * True, if content was sent as base64.
+       */
+      base64Encoded: boolean;
+    }
+    /**
+     * Returns a handle to the stream representing the response body.
+The request must be paused in the HeadersReceived stage.
+Note that after this command the request can't be continued
+as is -- client either needs to cancel it or to provide the
+response body.
+The stream only supports sequential read, IO.read will fail if the position
+is specified.
+This method is mutually exclusive with getResponseBody.
+Calling other methods that affect the request or disabling fetch
+domain before body is received results in an undefined behavior.
+     */
+    export type takeResponseBodyAsStreamParameters = {
+      requestId: RequestId;
+    }
+    export type takeResponseBodyAsStreamReturnValue = {
+      stream: IO.StreamHandle;
+    }
+  }
+  
+  /**
+   * This domain allows inspection of Web Audio API.
+https://webaudio.github.io/web-audio-api/
+   */
+  export module WebAudio {
+    /**
+     * An unique ID for a graph object (AudioContext, AudioNode, AudioParam) in Web Audio API
+     */
+    export type GraphObjectId = string;
+    /**
+     * Enum of BaseAudioContext types
+     */
+    export type ContextType = "realtime"|"offline";
+    /**
+     * Enum of AudioContextState from the spec
+     */
+    export type ContextState = "suspended"|"running"|"closed";
+    /**
+     * Enum of AudioNode types
+     */
+    export type NodeType = string;
+    /**
+     * Enum of AudioNode::ChannelCountMode from the spec
+     */
+    export type ChannelCountMode = "clamped-max"|"explicit"|"max";
+    /**
+     * Enum of AudioNode::ChannelInterpretation from the spec
+     */
+    export type ChannelInterpretation = "discrete"|"speakers";
+    /**
+     * Enum of AudioParam types
+     */
+    export type ParamType = string;
+    /**
+     * Enum of AudioParam::AutomationRate from the spec
+     */
+    export type AutomationRate = "a-rate"|"k-rate";
+    /**
+     * Fields in AudioContext that change in real-time.
+     */
+    export interface ContextRealtimeData {
+      /**
+       * The current context time in second in BaseAudioContext.
+       */
+      currentTime: number;
+      /**
+       * The time spent on rendering graph divided by render qunatum duration,
+and multiplied by 100. 100 means the audio renderer reached the full
+capacity and glitch may occur.
+       */
+      renderCapacity: number;
+      /**
+       * A running mean of callback interval.
+       */
+      callbackIntervalMean: number;
+      /**
+       * A running variance of callback interval.
+       */
+      callbackIntervalVariance: number;
+    }
+    /**
+     * Protocol object for BaseAudioContext
+     */
+    export interface BaseAudioContext {
+      contextId: GraphObjectId;
+      contextType: ContextType;
+      contextState: ContextState;
+      realtimeData?: ContextRealtimeData;
+      /**
+       * Platform-dependent callback buffer size.
+       */
+      callbackBufferSize: number;
+      /**
+       * Number of output channels supported by audio hardware in use.
+       */
+      maxOutputChannelCount: number;
+      /**
+       * Context sample rate.
+       */
+      sampleRate: number;
+    }
+    /**
+     * Protocol object for AudioListener
+     */
+    export interface AudioListener {
+      listenerId: GraphObjectId;
+      contextId: GraphObjectId;
+    }
+    /**
+     * Protocol object for AudioNode
+     */
+    export interface AudioNode {
+      nodeId: GraphObjectId;
+      contextId: GraphObjectId;
+      nodeType: NodeType;
+      numberOfInputs: number;
+      numberOfOutputs: number;
+      channelCount: number;
+      channelCountMode: ChannelCountMode;
+      channelInterpretation: ChannelInterpretation;
+    }
+    /**
+     * Protocol object for AudioParam
+     */
+    export interface AudioParam {
+      paramId: GraphObjectId;
+      nodeId: GraphObjectId;
+      contextId: GraphObjectId;
+      paramType: ParamType;
+      rate: AutomationRate;
+      defaultValue: number;
+      minValue: number;
+      maxValue: number;
+    }
+    
+    /**
+     * Notifies that a new BaseAudioContext has been created.
+     */
+    export type contextCreatedPayload = {
+      context: BaseAudioContext;
+    }
+    /**
+     * Notifies that an existing BaseAudioContext will be destroyed.
+     */
+    export type contextWillBeDestroyedPayload = {
+      contextId: GraphObjectId;
+    }
+    /**
+     * Notifies that existing BaseAudioContext has changed some properties (id stays the same)..
+     */
+    export type contextChangedPayload = {
+      context: BaseAudioContext;
+    }
+    /**
+     * Notifies that the construction of an AudioListener has finished.
+     */
+    export type audioListenerCreatedPayload = {
+      listener: AudioListener;
+    }
+    /**
+     * Notifies that a new AudioListener has been created.
+     */
+    export type audioListenerWillBeDestroyedPayload = {
+      contextId: GraphObjectId;
+      listenerId: GraphObjectId;
+    }
+    /**
+     * Notifies that a new AudioNode has been created.
+     */
+    export type audioNodeCreatedPayload = {
+      node: AudioNode;
+    }
+    /**
+     * Notifies that an existing AudioNode has been destroyed.
+     */
+    export type audioNodeWillBeDestroyedPayload = {
+      contextId: GraphObjectId;
+      nodeId: GraphObjectId;
+    }
+    /**
+     * Notifies that a new AudioParam has been created.
+     */
+    export type audioParamCreatedPayload = {
+      param: AudioParam;
+    }
+    /**
+     * Notifies that an existing AudioParam has been destroyed.
+     */
+    export type audioParamWillBeDestroyedPayload = {
+      contextId: GraphObjectId;
+      nodeId: GraphObjectId;
+      paramId: GraphObjectId;
+    }
+    /**
+     * Notifies that two AudioNodes are connected.
+     */
+    export type nodesConnectedPayload = {
+      contextId: GraphObjectId;
+      sourceId: GraphObjectId;
+      destinationId: GraphObjectId;
+      sourceOutputIndex?: number;
+      destinationInputIndex?: number;
+    }
+    /**
+     * Notifies that AudioNodes are disconnected. The destination can be null, and it means all the outgoing connections from the source are disconnected.
+     */
+    export type nodesDisconnectedPayload = {
+      contextId: GraphObjectId;
+      sourceId: GraphObjectId;
+      destinationId: GraphObjectId;
+      sourceOutputIndex?: number;
+      destinationInputIndex?: number;
+    }
+    /**
+     * Notifies that an AudioNode is connected to an AudioParam.
+     */
+    export type nodeParamConnectedPayload = {
+      contextId: GraphObjectId;
+      sourceId: GraphObjectId;
+      destinationId: GraphObjectId;
+      sourceOutputIndex?: number;
+    }
+    /**
+     * Notifies that an AudioNode is disconnected to an AudioParam.
+     */
+    export type nodeParamDisconnectedPayload = {
+      contextId: GraphObjectId;
+      sourceId: GraphObjectId;
+      destinationId: GraphObjectId;
+      sourceOutputIndex?: number;
+    }
+    
+    /**
+     * Enables the WebAudio domain and starts sending context lifetime events.
+     */
+    export type enableParameters = {
+    }
+    export type enableReturnValue = {
+    }
+    /**
+     * Disables the WebAudio domain.
+     */
+    export type disableParameters = {
+    }
+    export type disableReturnValue = {
+    }
+    /**
+     * Fetch the realtime data from the registered contexts.
+     */
+    export type getRealtimeDataParameters = {
+      contextId: GraphObjectId;
+    }
+    export type getRealtimeDataReturnValue = {
+      realtimeData: ContextRealtimeData;
+    }
+  }
+  
+  /**
+   * This domain allows configuring virtual authenticators to test the WebAuthn
+API.
+   */
+  export module WebAuthn {
+    export type AuthenticatorId = string;
+    export type AuthenticatorProtocol = "u2f"|"ctap2";
+    export type Ctap2Version = "ctap2_0"|"ctap2_1";
+    export type AuthenticatorTransport = "usb"|"nfc"|"ble"|"cable"|"internal";
+    export interface VirtualAuthenticatorOptions {
+      protocol: AuthenticatorProtocol;
+      /**
+       * Defaults to ctap2_0. Ignored if |protocol| == u2f.
+       */
+      ctap2Version?: Ctap2Version;
+      transport: AuthenticatorTransport;
+      /**
+       * Defaults to false.
+       */
+      hasResidentKey?: boolean;
+      /**
+       * Defaults to false.
+       */
+      hasUserVerification?: boolean;
+      /**
+       * If set to true, the authenticator will support the largeBlob extension.
+https://w3c.github.io/webauthn#largeBlob
+Defaults to false.
+       */
+      hasLargeBlob?: boolean;
+      /**
+       * If set to true, tests of user presence will succeed immediately.
+Otherwise, they will not be resolved. Defaults to true.
+       */
+      automaticPresenceSimulation?: boolean;
+      /**
+       * Sets whether User Verification succeeds or fails for an authenticator.
+Defaults to false.
+       */
+      isUserVerified?: boolean;
+    }
+    export interface Credential {
+      credentialId: binary;
+      isResidentCredential: boolean;
+      /**
+       * Relying Party ID the credential is scoped to. Must be set when adding a
+credential.
+       */
+      rpId?: string;
+      /**
+       * The ECDSA P-256 private key in PKCS#8 format.
+       */
+      privateKey: binary;
+      /**
+       * An opaque byte sequence with a maximum size of 64 bytes mapping the
+credential to a specific user.
+       */
+      userHandle?: binary;
+      /**
+       * Signature counter. This is incremented by one for each successful
+assertion.
+See https://w3c.github.io/webauthn/#signature-counter
+       */
+      signCount: number;
+      /**
+       * The large blob associated with the credential.
+See https://w3c.github.io/webauthn/#sctn-large-blob-extension
+       */
+      largeBlob?: binary;
+    }
+    
+    
+    /**
+     * Enable the WebAuthn domain and start intercepting credential storage and
+retrieval with a virtual authenticator.
+     */
+    export type enableParameters = {
+    }
+    export type enableReturnValue = {
+    }
+    /**
+     * Disable the WebAuthn domain.
+     */
+    export type disableParameters = {
+    }
+    export type disableReturnValue = {
+    }
+    /**
+     * Creates and adds a virtual authenticator.
+     */
+    export type addVirtualAuthenticatorParameters = {
+      options: VirtualAuthenticatorOptions;
+    }
+    export type addVirtualAuthenticatorReturnValue = {
+      authenticatorId: AuthenticatorId;
+    }
+    /**
+     * Removes the given authenticator.
+     */
+    export type removeVirtualAuthenticatorParameters = {
+      authenticatorId: AuthenticatorId;
+    }
+    export type removeVirtualAuthenticatorReturnValue = {
+    }
+    /**
+     * Adds the credential to the specified authenticator.
+     */
+    export type addCredentialParameters = {
+      authenticatorId: AuthenticatorId;
+      credential: Credential;
+    }
+    export type addCredentialReturnValue = {
+    }
+    /**
+     * Returns a single credential stored in the given virtual authenticator that
+matches the credential ID.
+     */
+    export type getCredentialParameters = {
+      authenticatorId: AuthenticatorId;
+      credentialId: binary;
+    }
+    export type getCredentialReturnValue = {
+      credential: Credential;
+    }
+    /**
+     * Returns all the credentials stored in the given virtual authenticator.
+     */
+    export type getCredentialsParameters = {
+      authenticatorId: AuthenticatorId;
+    }
+    export type getCredentialsReturnValue = {
+      credentials: Credential[];
+    }
+    /**
+     * Removes a credential from the authenticator.
+     */
+    export type removeCredentialParameters = {
+      authenticatorId: AuthenticatorId;
+      credentialId: binary;
+    }
+    export type removeCredentialReturnValue = {
+    }
+    /**
+     * Clears all the credentials from the specified device.
+     */
+    export type clearCredentialsParameters = {
+      authenticatorId: AuthenticatorId;
+    }
+    export type clearCredentialsReturnValue = {
+    }
+    /**
+     * Sets whether User Verification succeeds or fails for an authenticator.
+The default is true.
+     */
+    export type setUserVerifiedParameters = {
+      authenticatorId: AuthenticatorId;
+      isUserVerified: boolean;
+    }
+    export type setUserVerifiedReturnValue = {
+    }
+    /**
+     * Sets whether tests of user presence will succeed immediately (if true) or fail to resolve (if false) for an authenticator.
+The default is true.
+     */
+    export type setAutomaticPresenceSimulationParameters = {
+      authenticatorId: AuthenticatorId;
+      enabled: boolean;
+    }
+    export type setAutomaticPresenceSimulationReturnValue = {
+    }
+  }
+  
+  /**
+   * This domain allows detailed inspection of media elements
+   */
+  export module Media {
+    /**
+     * Players will get an ID that is unique within the agent context.
+     */
+    export type PlayerId = string;
+    export type Timestamp = number;
+    /**
+     * Have one type per entry in MediaLogRecord::Type
+Corresponds to kMessage
+     */
+    export interface PlayerMessage {
+      /**
+       * Keep in sync with MediaLogMessageLevel
+We are currently keeping the message level 'error' separate from the
+PlayerError type because right now they represent different things,
+this one being a DVLOG(ERROR) style log message that gets printed
+based on what log level is selected in the UI, and the other is a
+representation of a media::PipelineStatus object. Soon however we're
+going to be moving away from using PipelineStatus for errors and
+introducing a new error type which should hopefully let us integrate
+the error log level into the PlayerError type.
+       */
+      level: "error"|"warning"|"info"|"debug";
+      message: string;
+    }
+    /**
+     * Corresponds to kMediaPropertyChange
+     */
+    export interface PlayerProperty {
+      name: string;
+      value: string;
+    }
+    /**
+     * Corresponds to kMediaEventTriggered
+     */
+    export interface PlayerEvent {
+      timestamp: Timestamp;
+      value: string;
+    }
+    /**
+     * Corresponds to kMediaError
+     */
+    export interface PlayerError {
+      type: "pipeline_error"|"media_error";
+      /**
+       * When this switches to using media::Status instead of PipelineStatus
+we can remove "errorCode" and replace it with the fields from
+a Status instance. This also seems like a duplicate of the error
+level enum - there is a todo bug to have that level removed and
+use this instead. (crbug.com/1068454)
+       */
+      errorCode: string;
+    }
+    
+    /**
+     * This can be called multiple times, and can be used to set / override /
+remove player properties. A null propValue indicates removal.
+     */
+    export type playerPropertiesChangedPayload = {
+      playerId: PlayerId;
+      properties: PlayerProperty[];
+    }
+    /**
+     * Send events as a list, allowing them to be batched on the browser for less
+congestion. If batched, events must ALWAYS be in chronological order.
+     */
+    export type playerEventsAddedPayload = {
+      playerId: PlayerId;
+      events: PlayerEvent[];
+    }
+    /**
+     * Send a list of any messages that need to be delivered.
+     */
+    export type playerMessagesLoggedPayload = {
+      playerId: PlayerId;
+      messages: PlayerMessage[];
+    }
+    /**
+     * Send a list of any errors that need to be delivered.
+     */
+    export type playerErrorsRaisedPayload = {
+      playerId: PlayerId;
+      errors: PlayerError[];
+    }
+    /**
+     * Called whenever a player is created, or when a new agent joins and recieves
+a list of active players. If an agent is restored, it will recieve the full
+list of player ids and all events again.
+     */
+    export type playersCreatedPayload = {
+      players: PlayerId[];
+    }
+    
+    /**
+     * Enables the Media domain
+     */
+    export type enableParameters = {
+    }
+    export type enableReturnValue = {
+    }
+    /**
+     * Disables the Media domain.
+     */
+    export type disableParameters = {
+    }
+    export type disableReturnValue = {
+    }
+  }
+  
+  /**
+   * This domain is deprecated - use Runtime or Log instead.
+   */
+  export module Console {
+    /**
+     * Console message.
+     */
+    export interface ConsoleMessage {
+      /**
+       * Message source.
+       */
+      source: "xml"|"javascript"|"network"|"console-api"|"storage"|"appcache"|"rendering"|"security"|"other"|"deprecation"|"worker";
+      /**
+       * Message severity.
+       */
+      level: "log"|"warning"|"error"|"debug"|"info";
+      /**
+       * Message text.
+       */
+      text: string;
+      /**
+       * URL of the message origin.
+       */
+      url?: string;
+      /**
+       * Line number in the resource that generated this message (1-based).
+       */
+      line?: number;
+      /**
+       * Column number in the resource that generated this message (1-based).
+       */
+      column?: number;
+    }
+    
+    /**
+     * Issued when new console message is added.
+     */
+    export type messageAddedPayload = {
+      /**
+       * Console message that has been added.
+       */
+      message: ConsoleMessage;
+    }
+    
+    /**
+     * Does nothing.
+     */
+    export type clearMessagesParameters = {
+    }
+    export type clearMessagesReturnValue = {
+    }
+    /**
+     * Disables console domain, prevents further console messages from being reported to the client.
+     */
+    export type disableParameters = {
+    }
+    export type disableReturnValue = {
+    }
+    /**
+     * Enables console domain, sends the messages collected so far to the client by means of the
+`messageAdded` notification.
+     */
+    export type enableParameters = {
+    }
+    export type enableReturnValue = {
+    }
+  }
+  
+  /**
+   * Debugger domain exposes JavaScript debugging capabilities. It allows setting and removing
+breakpoints, stepping through execution, exploring stack traces, etc.
+   */
+  export module Debugger {
+    /**
+     * Breakpoint identifier.
+     */
+    export type BreakpointId = string;
+    /**
+     * Call frame identifier.
+     */
+    export type CallFrameId = string;
+    /**
+     * Location in the source code.
+     */
+    export interface Location {
+      /**
+       * Script identifier as reported in the `Debugger.scriptParsed`.
+       */
+      scriptId: Runtime.ScriptId;
+      /**
+       * Line number in the script (0-based).
+       */
+      lineNumber: number;
+      /**
+       * Column number in the script (0-based).
+       */
+      columnNumber?: number;
+    }
+    /**
+     * Location in the source code.
+     */
+    export interface ScriptPosition {
+      lineNumber: number;
+      columnNumber: number;
+    }
+    /**
+     * Location range within one script.
+     */
+    export interface LocationRange {
+      scriptId: Runtime.ScriptId;
+      start: ScriptPosition;
+      end: ScriptPosition;
+    }
+    /**
+     * JavaScript call frame. Array of call frames form the call stack.
+     */
+    export interface CallFrame {
+      /**
+       * Call frame identifier. This identifier is only valid while the virtual machine is paused.
+       */
+      callFrameId: CallFrameId;
+      /**
+       * Name of the JavaScript function called on this call frame.
+       */
+      functionName: string;
+      /**
+       * Location in the source code.
+       */
+      functionLocation?: Location;
+      /**
+       * Location in the source code.
+       */
+      location: Location;
+      /**
+       * JavaScript script name or url.
+       */
+      url: string;
+      /**
+       * Scope chain for this call frame.
+       */
+      scopeChain: Scope[];
+      /**
+       * `this` object for this call frame.
+       */
+      this: Runtime.RemoteObject;
+      /**
+       * The value being returned, if the function is at return point.
+       */
+      returnValue?: Runtime.RemoteObject;
+    }
+    /**
+     * Scope description.
+     */
+    export interface Scope {
+      /**
+       * Scope type.
+       */
+      type: "global"|"local"|"with"|"closure"|"catch"|"block"|"script"|"eval"|"module"|"wasm-expression-stack";
+      /**
+       * Object representing the scope. For `global` and `with` scopes it represents the actual
+object; for the rest of the scopes, it is artificial transient object enumerating scope
+variables as its properties.
+       */
+      object: Runtime.RemoteObject;
+      name?: string;
+      /**
+       * Location in the source code where scope starts
+       */
+      startLocation?: Location;
+      /**
+       * Location in the source code where scope ends
+       */
+      endLocation?: Location;
+    }
+    /**
+     * Search match for resource.
+     */
+    export interface SearchMatch {
+      /**
+       * Line number in resource content.
+       */
+      lineNumber: number;
+      /**
+       * Line with match content.
+       */
+      lineContent: string;
+    }
+    export interface BreakLocation {
+      /**
+       * Script identifier as reported in the `Debugger.scriptParsed`.
+       */
+      scriptId: Runtime.ScriptId;
+      /**
+       * Line number in the script (0-based).
+       */
+      lineNumber: number;
+      /**
+       * Column number in the script (0-based).
+       */
+      columnNumber?: number;
+      type?: "debuggerStatement"|"call"|"return";
+    }
+    /**
+     * Enum of possible script languages.
+     */
+    export type ScriptLanguage = "JavaScript"|"WebAssembly";
+    /**
+     * Debug symbols available for a wasm script.
+     */
+    export interface DebugSymbols {
+      /**
+       * Type of the debug symbols.
+       */
+      type: "None"|"SourceMap"|"EmbeddedDWARF"|"ExternalDWARF";
+      /**
+       * URL of the external symbol source.
+       */
+      externalURL?: string;
+    }
+    
+    /**
+     * Fired when breakpoint is resolved to an actual script and location.
+     */
+    export type breakpointResolvedPayload = {
+      /**
+       * Breakpoint unique identifier.
+       */
+      breakpointId: BreakpointId;
+      /**
+       * Actual breakpoint location.
+       */
+      location: Location;
+    }
+    /**
+     * Fired when the virtual machine stopped on breakpoint or exception or any other stop criteria.
+     */
+    export type pausedPayload = {
+      /**
+       * Call stack the virtual machine stopped on.
+       */
+      callFrames: CallFrame[];
+      /**
+       * Pause reason.
+       */
+      reason: "ambiguous"|"assert"|"CSPViolation"|"debugCommand"|"DOM"|"EventListener"|"exception"|"instrumentation"|"OOM"|"other"|"promiseRejection"|"XHR";
+      /**
+       * Object containing break-specific auxiliary properties.
+       */
+      data?: { [key: string]: string };
+      /**
+       * Hit breakpoints IDs
+       */
+      hitBreakpoints?: string[];
+      /**
+       * Async stack trace, if any.
+       */
+      asyncStackTrace?: Runtime.StackTrace;
+      /**
+       * Async stack trace, if any.
+       */
+      asyncStackTraceId?: Runtime.StackTraceId;
+      /**
+       * Never present, will be removed.
+       */
+      asyncCallStackTraceId?: Runtime.StackTraceId;
+    }
+    /**
+     * Fired when the virtual machine resumed execution.
+     */
+    export type resumedPayload = void;
+    /**
+     * Fired when virtual machine fails to parse the script.
+     */
+    export type scriptFailedToParsePayload = {
+      /**
+       * Identifier of the script parsed.
+       */
+      scriptId: Runtime.ScriptId;
+      /**
+       * URL or name of the script parsed (if any).
+       */
+      url: string;
+      /**
+       * Line offset of the script within the resource with given URL (for script tags).
+       */
+      startLine: number;
+      /**
+       * Column offset of the script within the resource with given URL.
+       */
+      startColumn: number;
+      /**
+       * Last line of the script.
+       */
+      endLine: number;
+      /**
+       * Length of the last line of the script.
+       */
+      endColumn: number;
+      /**
+       * Specifies script creation context.
+       */
+      executionContextId: Runtime.ExecutionContextId;
+      /**
+       * Content hash of the script.
+       */
+      hash: string;
+      /**
+       * Embedder-specific auxiliary data.
+       */
+      executionContextAuxData?: { [key: string]: string };
+      /**
+       * URL of source map associated with script (if any).
+       */
+      sourceMapURL?: string;
+      /**
+       * True, if this script has sourceURL.
+       */
+      hasSourceURL?: boolean;
+      /**
+       * True, if this script is ES6 module.
+       */
+      isModule?: boolean;
+      /**
+       * This script length.
+       */
+      length?: number;
+      /**
+       * JavaScript top stack frame of where the script parsed event was triggered if available.
+       */
+      stackTrace?: Runtime.StackTrace;
+      /**
+       * If the scriptLanguage is WebAssembly, the code section offset in the module.
+       */
+      codeOffset?: number;
+      /**
+       * The language of the script.
+       */
+      scriptLanguage?: Debugger.ScriptLanguage;
+      /**
+       * The name the embedder supplied for this script.
+       */
+      embedderName?: string;
+    }
+    /**
+     * Fired when virtual machine parses script. This event is also fired for all known and uncollected
+scripts upon enabling debugger.
+     */
+    export type scriptParsedPayload = {
+      /**
+       * Identifier of the script parsed.
+       */
+      scriptId: Runtime.ScriptId;
+      /**
+       * URL or name of the script parsed (if any).
+       */
+      url: string;
+      /**
+       * Line offset of the script within the resource with given URL (for script tags).
+       */
+      startLine: number;
+      /**
+       * Column offset of the script within the resource with given URL.
+       */
+      startColumn: number;
+      /**
+       * Last line of the script.
+       */
+      endLine: number;
+      /**
+       * Length of the last line of the script.
+       */
+      endColumn: number;
+      /**
+       * Specifies script creation context.
+       */
+      executionContextId: Runtime.ExecutionContextId;
+      /**
+       * Content hash of the script.
+       */
+      hash: string;
+      /**
+       * Embedder-specific auxiliary data.
+       */
+      executionContextAuxData?: { [key: string]: string };
+      /**
+       * True, if this script is generated as a result of the live edit operation.
+       */
+      isLiveEdit?: boolean;
+      /**
+       * URL of source map associated with script (if any).
+       */
+      sourceMapURL?: string;
+      /**
+       * True, if this script has sourceURL.
+       */
+      hasSourceURL?: boolean;
+      /**
+       * True, if this script is ES6 module.
+       */
+      isModule?: boolean;
+      /**
+       * This script length.
+       */
+      length?: number;
+      /**
+       * JavaScript top stack frame of where the script parsed event was triggered if available.
+       */
+      stackTrace?: Runtime.StackTrace;
+      /**
+       * If the scriptLanguage is WebAssembly, the code section offset in the module.
+       */
+      codeOffset?: number;
+      /**
+       * The language of the script.
+       */
+      scriptLanguage?: Debugger.ScriptLanguage;
+      /**
+       * If the scriptLanguage is WebASsembly, the source of debug symbols for the module.
+       */
+      debugSymbols?: Debugger.DebugSymbols;
+      /**
+       * The name the embedder supplied for this script.
+       */
+      embedderName?: string;
+    }
+    
+    /**
+     * Continues execution until specific location is reached.
+     */
+    export type continueToLocationParameters = {
+      /**
+       * Location to continue to.
+       */
+      location: Location;
+      targetCallFrames?: "any"|"current";
+    }
+    export type continueToLocationReturnValue = {
+    }
+    /**
+     * Disables debugger for given page.
+     */
+    export type disableParameters = {
+    }
+    export type disableReturnValue = {
+    }
+    /**
+     * Enables debugger for the given page. Clients should not assume that the debugging has been
+enabled until the result for this command is received.
+     */
+    export type enableParameters = {
+      /**
+       * The maximum size in bytes of collected scripts (not referenced by other heap objects)
+the debugger can hold. Puts no limit if paramter is omitted.
+       */
+      maxScriptsCacheSize?: number;
+    }
+    export type enableReturnValue = {
+      /**
+       * Unique identifier of the debugger.
+       */
+      debuggerId: Runtime.UniqueDebuggerId;
+    }
+    /**
+     * Evaluates expression on a given call frame.
+     */
+    export type evaluateOnCallFrameParameters = {
+      /**
+       * Call frame identifier to evaluate on.
+       */
+      callFrameId: CallFrameId;
+      /**
+       * Expression to evaluate.
+       */
+      expression: string;
+      /**
+       * String object group name to put result into (allows rapid releasing resulting object handles
+using `releaseObjectGroup`).
+       */
+      objectGroup?: string;
+      /**
+       * Specifies whether command line API should be available to the evaluated expression, defaults
+to false.
+       */
+      includeCommandLineAPI?: boolean;
+      /**
+       * In silent mode exceptions thrown during evaluation are not reported and do not pause
+execution. Overrides `setPauseOnException` state.
+       */
+      silent?: boolean;
+      /**
+       * Whether the result is expected to be a JSON object that should be sent by value.
+       */
+      returnByValue?: boolean;
+      /**
+       * Whether preview should be generated for the result.
+       */
+      generatePreview?: boolean;
+      /**
+       * Whether to throw an exception if side effect cannot be ruled out during evaluation.
+       */
+      throwOnSideEffect?: boolean;
+      /**
+       * Terminate execution after timing out (number of milliseconds).
+       */
+      timeout?: Runtime.TimeDelta;
+    }
+    export type evaluateOnCallFrameReturnValue = {
+      /**
+       * Object wrapper for the evaluation result.
+       */
+      result: Runtime.RemoteObject;
+      /**
+       * Exception details.
+       */
+      exceptionDetails?: Runtime.ExceptionDetails;
+    }
+    /**
+     * Execute a Wasm Evaluator module on a given call frame.
+     */
+    export type executeWasmEvaluatorParameters = {
+      /**
+       * WebAssembly call frame identifier to evaluate on.
+       */
+      callFrameId: CallFrameId;
+      /**
+       * Code of the evaluator module.
+       */
+      evaluator: binary;
+      /**
+       * Terminate execution after timing out (number of milliseconds).
+       */
+      timeout?: Runtime.TimeDelta;
+    }
+    export type executeWasmEvaluatorReturnValue = {
+      /**
+       * Object wrapper for the evaluation result.
+       */
+      result: Runtime.RemoteObject;
+      /**
+       * Exception details.
+       */
+      exceptionDetails?: Runtime.ExceptionDetails;
+    }
+    /**
+     * Returns possible locations for breakpoint. scriptId in start and end range locations should be
+the same.
+     */
+    export type getPossibleBreakpointsParameters = {
+      /**
+       * Start of range to search possible breakpoint locations in.
+       */
+      start: Location;
+      /**
+       * End of range to search possible breakpoint locations in (excluding). When not specified, end
+of scripts is used as end of range.
+       */
+      end?: Location;
+      /**
+       * Only consider locations which are in the same (non-nested) function as start.
+       */
+      restrictToFunction?: boolean;
+    }
+    export type getPossibleBreakpointsReturnValue = {
+      /**
+       * List of the possible breakpoint locations.
+       */
+      locations: BreakLocation[];
+    }
+    /**
+     * Returns source for the script with given id.
+     */
+    export type getScriptSourceParameters = {
+      /**
+       * Id of the script to get source for.
+       */
+      scriptId: Runtime.ScriptId;
+    }
+    export type getScriptSourceReturnValue = {
+      /**
+       * Script source (empty in case of Wasm bytecode).
+       */
+      scriptSource: string;
+      /**
+       * Wasm bytecode.
+       */
+      bytecode?: binary;
+    }
+    /**
+     * This command is deprecated. Use getScriptSource instead.
+     */
+    export type getWasmBytecodeParameters = {
+      /**
+       * Id of the Wasm script to get source for.
+       */
+      scriptId: Runtime.ScriptId;
+    }
+    export type getWasmBytecodeReturnValue = {
+      /**
+       * Script source.
+       */
+      bytecode: binary;
+    }
+    /**
+     * Returns stack trace with given `stackTraceId`.
+     */
+    export type getStackTraceParameters = {
+      stackTraceId: Runtime.StackTraceId;
+    }
+    export type getStackTraceReturnValue = {
+      stackTrace: Runtime.StackTrace;
+    }
+    /**
+     * Stops on the next JavaScript statement.
+     */
+    export type pauseParameters = {
+    }
+    export type pauseReturnValue = {
+    }
+    export type pauseOnAsyncCallParameters = {
+      /**
+       * Debugger will pause when async call with given stack trace is started.
+       */
+      parentStackTraceId: Runtime.StackTraceId;
+    }
+    export type pauseOnAsyncCallReturnValue = {
+    }
+    /**
+     * Removes JavaScript breakpoint.
+     */
+    export type removeBreakpointParameters = {
+      breakpointId: BreakpointId;
+    }
+    export type removeBreakpointReturnValue = {
+    }
+    /**
+     * Restarts particular call frame from the beginning.
+     */
+    export type restartFrameParameters = {
+      /**
+       * Call frame identifier to evaluate on.
+       */
+      callFrameId: CallFrameId;
+    }
+    export type restartFrameReturnValue = {
+      /**
+       * New stack trace.
+       */
+      callFrames: CallFrame[];
+      /**
+       * Async stack trace, if any.
+       */
+      asyncStackTrace?: Runtime.StackTrace;
+      /**
+       * Async stack trace, if any.
+       */
+      asyncStackTraceId?: Runtime.StackTraceId;
+    }
+    /**
+     * Resumes JavaScript execution.
+     */
+    export type resumeParameters = {
+      /**
+       * Set to true to terminate execution upon resuming execution. In contrast
+to Runtime.terminateExecution, this will allows to execute further
+JavaScript (i.e. via evaluation) until execution of the paused code
+is actually resumed, at which point termination is triggered.
+If execution is currently not paused, this parameter has no effect.
+       */
+      terminateOnResume?: boolean;
+    }
+    export type resumeReturnValue = {
+    }
+    /**
+     * Searches for given string in script content.
+     */
+    export type searchInContentParameters = {
+      /**
+       * Id of the script to search in.
+       */
+      scriptId: Runtime.ScriptId;
+      /**
+       * String to search for.
+       */
+      query: string;
+      /**
+       * If true, search is case sensitive.
+       */
+      caseSensitive?: boolean;
+      /**
+       * If true, treats string parameter as regex.
+       */
+      isRegex?: boolean;
+    }
+    export type searchInContentReturnValue = {
+      /**
+       * List of search matches.
+       */
+      result: SearchMatch[];
+    }
+    /**
+     * Enables or disables async call stacks tracking.
+     */
+    export type setAsyncCallStackDepthParameters = {
+      /**
+       * Maximum depth of async call stacks. Setting to `0` will effectively disable collecting async
+call stacks (default).
+       */
+      maxDepth: number;
+    }
+    export type setAsyncCallStackDepthReturnValue = {
+    }
+    /**
+     * Replace previous blackbox patterns with passed ones. Forces backend to skip stepping/pausing in
+scripts with url matching one of the patterns. VM will try to leave blackboxed script by
+performing 'step in' several times, finally resorting to 'step out' if unsuccessful.
+     */
+    export type setBlackboxPatternsParameters = {
+      /**
+       * Array of regexps that will be used to check script url for blackbox state.
+       */
+      patterns: string[];
+    }
+    export type setBlackboxPatternsReturnValue = {
+    }
+    /**
+     * Makes backend skip steps in the script in blackboxed ranges. VM will try leave blacklisted
+scripts by performing 'step in' several times, finally resorting to 'step out' if unsuccessful.
+Positions array contains positions where blackbox state is changed. First interval isn't
+blackboxed. Array should be sorted.
+     */
+    export type setBlackboxedRangesParameters = {
+      /**
+       * Id of the script.
+       */
+      scriptId: Runtime.ScriptId;
+      positions: ScriptPosition[];
+    }
+    export type setBlackboxedRangesReturnValue = {
+    }
+    /**
+     * Sets JavaScript breakpoint at a given location.
+     */
+    export type setBreakpointParameters = {
+      /**
+       * Location to set breakpoint in.
+       */
+      location: Location;
+      /**
+       * Expression to use as a breakpoint condition. When specified, debugger will only stop on the
+breakpoint if this expression evaluates to true.
+       */
+      condition?: string;
+    }
+    export type setBreakpointReturnValue = {
+      /**
+       * Id of the created breakpoint for further reference.
+       */
+      breakpointId: BreakpointId;
+      /**
+       * Location this breakpoint resolved into.
+       */
+      actualLocation: Location;
+    }
+    /**
+     * Sets instrumentation breakpoint.
+     */
+    export type setInstrumentationBreakpointParameters = {
+      /**
+       * Instrumentation name.
+       */
+      instrumentation: "beforeScriptExecution"|"beforeScriptWithSourceMapExecution";
+    }
+    export type setInstrumentationBreakpointReturnValue = {
+      /**
+       * Id of the created breakpoint for further reference.
+       */
+      breakpointId: BreakpointId;
+    }
+    /**
+     * Sets JavaScript breakpoint at given location specified either by URL or URL regex. Once this
+command is issued, all existing parsed scripts will have breakpoints resolved and returned in
+`locations` property. Further matching script parsing will result in subsequent
+`breakpointResolved` events issued. This logical breakpoint will survive page reloads.
+     */
+    export type setBreakpointByUrlParameters = {
+      /**
+       * Line number to set breakpoint at.
+       */
+      lineNumber: number;
+      /**
+       * URL of the resources to set breakpoint on.
+       */
+      url?: string;
+      /**
+       * Regex pattern for the URLs of the resources to set breakpoints on. Either `url` or
+`urlRegex` must be specified.
+       */
+      urlRegex?: string;
+      /**
+       * Script hash of the resources to set breakpoint on.
+       */
+      scriptHash?: string;
+      /**
+       * Offset in the line to set breakpoint at.
+       */
+      columnNumber?: number;
+      /**
+       * Expression to use as a breakpoint condition. When specified, debugger will only stop on the
+breakpoint if this expression evaluates to true.
+       */
+      condition?: string;
+    }
+    export type setBreakpointByUrlReturnValue = {
+      /**
+       * Id of the created breakpoint for further reference.
+       */
+      breakpointId: BreakpointId;
+      /**
+       * List of the locations this breakpoint resolved into upon addition.
+       */
+      locations: Location[];
+    }
+    /**
+     * Sets JavaScript breakpoint before each call to the given function.
+If another function was created from the same source as a given one,
+calling it will also trigger the breakpoint.
+     */
+    export type setBreakpointOnFunctionCallParameters = {
+      /**
+       * Function object id.
+       */
+      objectId: Runtime.RemoteObjectId;
+      /**
+       * Expression to use as a breakpoint condition. When specified, debugger will
+stop on the breakpoint if this expression evaluates to true.
+       */
+      condition?: string;
+    }
+    export type setBreakpointOnFunctionCallReturnValue = {
+      /**
+       * Id of the created breakpoint for further reference.
+       */
+      breakpointId: BreakpointId;
+    }
+    /**
+     * Activates / deactivates all breakpoints on the page.
+     */
+    export type setBreakpointsActiveParameters = {
+      /**
+       * New value for breakpoints active state.
+       */
+      active: boolean;
+    }
+    export type setBreakpointsActiveReturnValue = {
+    }
+    /**
+     * Defines pause on exceptions state. Can be set to stop on all exceptions, uncaught exceptions or
+no exceptions. Initial pause on exceptions state is `none`.
+     */
+    export type setPauseOnExceptionsParameters = {
+      /**
+       * Pause on exceptions mode.
+       */
+      state: "none"|"uncaught"|"all";
+    }
+    export type setPauseOnExceptionsReturnValue = {
+    }
+    /**
+     * Changes return value in top frame. Available only at return break position.
+     */
+    export type setReturnValueParameters = {
+      /**
+       * New return value.
+       */
+      newValue: Runtime.CallArgument;
+    }
+    export type setReturnValueReturnValue = {
+    }
+    /**
+     * Edits JavaScript source live.
+     */
+    export type setScriptSourceParameters = {
+      /**
+       * Id of the script to edit.
+       */
+      scriptId: Runtime.ScriptId;
+      /**
+       * New content of the script.
+       */
+      scriptSource: string;
+      /**
+       * If true the change will not actually be applied. Dry run may be used to get result
+description without actually modifying the code.
+       */
+      dryRun?: boolean;
+    }
+    export type setScriptSourceReturnValue = {
+      /**
+       * New stack trace in case editing has happened while VM was stopped.
+       */
+      callFrames?: CallFrame[];
+      /**
+       * Whether current call stack  was modified after applying the changes.
+       */
+      stackChanged?: boolean;
+      /**
+       * Async stack trace, if any.
+       */
+      asyncStackTrace?: Runtime.StackTrace;
+      /**
+       * Async stack trace, if any.
+       */
+      asyncStackTraceId?: Runtime.StackTraceId;
+      /**
+       * Exception details if any.
+       */
+      exceptionDetails?: Runtime.ExceptionDetails;
+    }
+    /**
+     * Makes page not interrupt on any pauses (breakpoint, exception, dom exception etc).
+     */
+    export type setSkipAllPausesParameters = {
+      /**
+       * New value for skip pauses state.
+       */
+      skip: boolean;
+    }
+    export type setSkipAllPausesReturnValue = {
+    }
+    /**
+     * Changes value of variable in a callframe. Object-based scopes are not supported and must be
+mutated manually.
+     */
+    export type setVariableValueParameters = {
+      /**
+       * 0-based number of scope as was listed in scope chain. Only 'local', 'closure' and 'catch'
+scope types are allowed. Other scopes could be manipulated manually.
+       */
+      scopeNumber: number;
+      /**
+       * Variable name.
+       */
+      variableName: string;
+      /**
+       * New variable value.
+       */
+      newValue: Runtime.CallArgument;
+      /**
+       * Id of callframe that holds variable.
+       */
+      callFrameId: CallFrameId;
+    }
+    export type setVariableValueReturnValue = {
+    }
+    /**
+     * Steps into the function call.
+     */
+    export type stepIntoParameters = {
+      /**
+       * Debugger will pause on the execution of the first async task which was scheduled
+before next pause.
+       */
+      breakOnAsyncCall?: boolean;
+      /**
+       * The skipList specifies location ranges that should be skipped on step into.
+       */
+      skipList?: LocationRange[];
+    }
+    export type stepIntoReturnValue = {
+    }
+    /**
+     * Steps out of the function call.
+     */
+    export type stepOutParameters = {
+    }
+    export type stepOutReturnValue = {
+    }
+    /**
+     * Steps over the statement.
+     */
+    export type stepOverParameters = {
+      /**
+       * The skipList specifies location ranges that should be skipped on step over.
+       */
+      skipList?: LocationRange[];
+    }
+    export type stepOverReturnValue = {
+    }
+  }
+  
+  export module HeapProfiler {
+    /**
+     * Heap snapshot object id.
+     */
+    export type HeapSnapshotObjectId = string;
+    /**
+     * Sampling Heap Profile node. Holds callsite information, allocation statistics and child nodes.
+     */
+    export interface SamplingHeapProfileNode {
+      /**
+       * Function location.
+       */
+      callFrame: Runtime.CallFrame;
+      /**
+       * Allocations size in bytes for the node excluding children.
+       */
+      selfSize: number;
+      /**
+       * Node id. Ids are unique across all profiles collected between startSampling and stopSampling.
+       */
+      id: number;
+      /**
+       * Child nodes.
+       */
+      children: SamplingHeapProfileNode[];
+    }
+    /**
+     * A single sample from a sampling profile.
+     */
+    export interface SamplingHeapProfileSample {
+      /**
+       * Allocation size in bytes attributed to the sample.
+       */
+      size: number;
+      /**
+       * Id of the corresponding profile tree node.
+       */
+      nodeId: number;
+      /**
+       * Time-ordered sample ordinal number. It is unique across all profiles retrieved
+between startSampling and stopSampling.
+       */
+      ordinal: number;
+    }
+    /**
+     * Sampling profile.
+     */
+    export interface SamplingHeapProfile {
+      head: SamplingHeapProfileNode;
+      samples: SamplingHeapProfileSample[];
+    }
+    
+    export type addHeapSnapshotChunkPayload = {
+      chunk: string;
+    }
+    /**
+     * If heap objects tracking has been started then backend may send update for one or more fragments
+     */
+    export type heapStatsUpdatePayload = {
+      /**
+       * An array of triplets. Each triplet describes a fragment. The first integer is the fragment
+index, the second integer is a total count of objects for the fragment, the third integer is
+a total size of the objects for the fragment.
+       */
+      statsUpdate: number[];
+    }
+    /**
+     * If heap objects tracking has been started then backend regularly sends a current value for last
+seen object id and corresponding timestamp. If the were changes in the heap since last event
+then one or more heapStatsUpdate events will be sent before a new lastSeenObjectId event.
+     */
+    export type lastSeenObjectIdPayload = {
+      lastSeenObjectId: number;
+      timestamp: number;
+    }
+    export type reportHeapSnapshotProgressPayload = {
+      done: number;
+      total: number;
+      finished?: boolean;
+    }
+    export type resetProfilesPayload = void;
+    
+    /**
+     * Enables console to refer to the node with given id via $x (see Command Line API for more details
+$x functions).
+     */
+    export type addInspectedHeapObjectParameters = {
+      /**
+       * Heap snapshot object id to be accessible by means of $x command line API.
+       */
+      heapObjectId: HeapSnapshotObjectId;
+    }
+    export type addInspectedHeapObjectReturnValue = {
+    }
+    export type collectGarbageParameters = {
+    }
+    export type collectGarbageReturnValue = {
+    }
+    export type disableParameters = {
+    }
+    export type disableReturnValue = {
+    }
+    export type enableParameters = {
+    }
+    export type enableReturnValue = {
+    }
+    export type getHeapObjectIdParameters = {
+      /**
+       * Identifier of the object to get heap object id for.
+       */
+      objectId: Runtime.RemoteObjectId;
+    }
+    export type getHeapObjectIdReturnValue = {
+      /**
+       * Id of the heap snapshot object corresponding to the passed remote object id.
+       */
+      heapSnapshotObjectId: HeapSnapshotObjectId;
+    }
+    export type getObjectByHeapObjectIdParameters = {
+      objectId: HeapSnapshotObjectId;
+      /**
+       * Symbolic group name that can be used to release multiple objects.
+       */
+      objectGroup?: string;
+    }
+    export type getObjectByHeapObjectIdReturnValue = {
+      /**
+       * Evaluation result.
+       */
+      result: Runtime.RemoteObject;
+    }
+    export type getSamplingProfileParameters = {
+    }
+    export type getSamplingProfileReturnValue = {
+      /**
+       * Return the sampling profile being collected.
+       */
+      profile: SamplingHeapProfile;
+    }
+    export type startSamplingParameters = {
+      /**
+       * Average sample interval in bytes. Poisson distribution is used for the intervals. The
+default value is 32768 bytes.
+       */
+      samplingInterval?: number;
+    }
+    export type startSamplingReturnValue = {
+    }
+    export type startTrackingHeapObjectsParameters = {
+      trackAllocations?: boolean;
+    }
+    export type startTrackingHeapObjectsReturnValue = {
+    }
+    export type stopSamplingParameters = {
+    }
+    export type stopSamplingReturnValue = {
+      /**
+       * Recorded sampling heap profile.
+       */
+      profile: SamplingHeapProfile;
+    }
+    export type stopTrackingHeapObjectsParameters = {
+      /**
+       * If true 'reportHeapSnapshotProgress' events will be generated while snapshot is being taken
+when the tracking is stopped.
+       */
+      reportProgress?: boolean;
+      treatGlobalObjectsAsRoots?: boolean;
+    }
+    export type stopTrackingHeapObjectsReturnValue = {
+    }
+    export type takeHeapSnapshotParameters = {
+      /**
+       * If true 'reportHeapSnapshotProgress' events will be generated while snapshot is being taken.
+       */
+      reportProgress?: boolean;
+      /**
+       * If true, a raw snapshot without artifical roots will be generated
+       */
+      treatGlobalObjectsAsRoots?: boolean;
+    }
+    export type takeHeapSnapshotReturnValue = {
+    }
+  }
+  
+  export module Profiler {
+    /**
+     * Profile node. Holds callsite information, execution statistics and child nodes.
+     */
+    export interface ProfileNode {
+      /**
+       * Unique id of the node.
+       */
+      id: number;
+      /**
+       * Function location.
+       */
+      callFrame: Runtime.CallFrame;
+      /**
+       * Number of samples where this node was on top of the call stack.
+       */
+      hitCount?: number;
+      /**
+       * Child node ids.
+       */
+      children?: number[];
+      /**
+       * The reason of being not optimized. The function may be deoptimized or marked as don't
+optimize.
+       */
+      deoptReason?: string;
+      /**
+       * An array of source position ticks.
+       */
+      positionTicks?: PositionTickInfo[];
+    }
+    /**
+     * Profile.
+     */
+    export interface Profile {
+      /**
+       * The list of profile nodes. First item is the root node.
+       */
+      nodes: ProfileNode[];
+      /**
+       * Profiling start timestamp in microseconds.
+       */
+      startTime: number;
+      /**
+       * Profiling end timestamp in microseconds.
+       */
+      endTime: number;
+      /**
+       * Ids of samples top nodes.
+       */
+      samples?: number[];
+      /**
+       * Time intervals between adjacent samples in microseconds. The first delta is relative to the
+profile startTime.
+       */
+      timeDeltas?: number[];
+    }
+    /**
+     * Specifies a number of samples attributed to a certain source position.
+     */
+    export interface PositionTickInfo {
+      /**
+       * Source line number (1-based).
+       */
+      line: number;
+      /**
+       * Number of samples attributed to the source line.
+       */
+      ticks: number;
+    }
+    /**
+     * Coverage data for a source range.
+     */
+    export interface CoverageRange {
+      /**
+       * JavaScript script source offset for the range start.
+       */
+      startOffset: number;
+      /**
+       * JavaScript script source offset for the range end.
+       */
+      endOffset: number;
+      /**
+       * Collected execution count of the source range.
+       */
+      count: number;
+    }
+    /**
+     * Coverage data for a JavaScript function.
+     */
+    export interface FunctionCoverage {
+      /**
+       * JavaScript function name.
+       */
+      functionName: string;
+      /**
+       * Source ranges inside the function with coverage data.
+       */
+      ranges: CoverageRange[];
+      /**
+       * Whether coverage data for this function has block granularity.
+       */
+      isBlockCoverage: boolean;
+    }
+    /**
+     * Coverage data for a JavaScript script.
+     */
+    export interface ScriptCoverage {
+      /**
+       * JavaScript script id.
+       */
+      scriptId: Runtime.ScriptId;
+      /**
+       * JavaScript script name or url.
+       */
+      url: string;
+      /**
+       * Functions contained in the script that has coverage data.
+       */
+      functions: FunctionCoverage[];
+    }
+    /**
+     * Describes a type collected during runtime.
+     */
+    export interface TypeObject {
+      /**
+       * Name of a type collected with type profiling.
+       */
+      name: string;
+    }
+    /**
+     * Source offset and types for a parameter or return value.
+     */
+    export interface TypeProfileEntry {
+      /**
+       * Source offset of the parameter or end of function for return values.
+       */
+      offset: number;
+      /**
+       * The types for this parameter or return value.
+       */
+      types: TypeObject[];
+    }
+    /**
+     * Type profile data collected during runtime for a JavaScript script.
+     */
+    export interface ScriptTypeProfile {
+      /**
+       * JavaScript script id.
+       */
+      scriptId: Runtime.ScriptId;
+      /**
+       * JavaScript script name or url.
+       */
+      url: string;
+      /**
+       * Type profile entries for parameters and return values of the functions in the script.
+       */
+      entries: TypeProfileEntry[];
+    }
+    /**
+     * Collected counter information.
+     */
+    export interface CounterInfo {
+      /**
+       * Counter name.
+       */
+      name: string;
+      /**
+       * Counter value.
+       */
+      value: number;
+    }
+    /**
+     * Runtime call counter information.
+     */
+    export interface RuntimeCallCounterInfo {
+      /**
+       * Counter name.
+       */
+      name: string;
+      /**
+       * Counter value.
+       */
+      value: number;
+      /**
+       * Counter time in seconds.
+       */
+      time: number;
+    }
+    
+    export type consoleProfileFinishedPayload = {
+      id: string;
+      /**
+       * Location of console.profileEnd().
+       */
+      location: Debugger.Location;
+      profile: Profile;
+      /**
+       * Profile title passed as an argument to console.profile().
+       */
+      title?: string;
+    }
+    /**
+     * Sent when new profile recording is started using console.profile() call.
+     */
+    export type consoleProfileStartedPayload = {
+      id: string;
+      /**
+       * Location of console.profile().
+       */
+      location: Debugger.Location;
+      /**
+       * Profile title passed as an argument to console.profile().
+       */
+      title?: string;
+    }
+    /**
+     * Reports coverage delta since the last poll (either from an event like this, or from
+`takePreciseCoverage` for the current isolate. May only be sent if precise code
+coverage has been started. This event can be trigged by the embedder to, for example,
+trigger collection of coverage data immediatelly at a certain point in time.
+     */
+    export type preciseCoverageDeltaUpdatePayload = {
+      /**
+       * Monotonically increasing time (in seconds) when the coverage update was taken in the backend.
+       */
+      timestamp: number;
+      /**
+       * Identifier for distinguishing coverage events.
+       */
+      occassion: string;
+      /**
+       * Coverage data for the current isolate.
+       */
+      result: ScriptCoverage[];
+    }
+    
+    export type disableParameters = {
+    }
+    export type disableReturnValue = {
+    }
+    export type enableParameters = {
+    }
+    export type enableReturnValue = {
+    }
+    /**
+     * Collect coverage data for the current isolate. The coverage data may be incomplete due to
+garbage collection.
+     */
+    export type getBestEffortCoverageParameters = {
+    }
+    export type getBestEffortCoverageReturnValue = {
+      /**
+       * Coverage data for the current isolate.
+       */
+      result: ScriptCoverage[];
+    }
+    /**
+     * Changes CPU profiler sampling interval. Must be called before CPU profiles recording started.
+     */
+    export type setSamplingIntervalParameters = {
+      /**
+       * New sampling interval in microseconds.
+       */
+      interval: number;
+    }
+    export type setSamplingIntervalReturnValue = {
+    }
+    export type startParameters = {
+    }
+    export type startReturnValue = {
+    }
+    /**
+     * Enable precise code coverage. Coverage data for JavaScript executed before enabling precise code
+coverage may be incomplete. Enabling prevents running optimized code and resets execution
+counters.
+     */
+    export type startPreciseCoverageParameters = {
+      /**
+       * Collect accurate call counts beyond simple 'covered' or 'not covered'.
+       */
+      callCount?: boolean;
+      /**
+       * Collect block-based coverage.
+       */
+      detailed?: boolean;
+      /**
+       * Allow the backend to send updates on its own initiative
+       */
+      allowTriggeredUpdates?: boolean;
+    }
+    export type startPreciseCoverageReturnValue = {
+      /**
+       * Monotonically increasing time (in seconds) when the coverage update was taken in the backend.
+       */
+      timestamp: number;
+    }
+    /**
+     * Enable type profile.
+     */
+    export type startTypeProfileParameters = {
+    }
+    export type startTypeProfileReturnValue = {
+    }
+    export type stopParameters = {
+    }
+    export type stopReturnValue = {
+      /**
+       * Recorded profile.
+       */
+      profile: Profile;
+    }
+    /**
+     * Disable precise code coverage. Disabling releases unnecessary execution count records and allows
+executing optimized code.
+     */
+    export type stopPreciseCoverageParameters = {
+    }
+    export type stopPreciseCoverageReturnValue = {
+    }
+    /**
+     * Disable type profile. Disabling releases type profile data collected so far.
+     */
+    export type stopTypeProfileParameters = {
+    }
+    export type stopTypeProfileReturnValue = {
+    }
+    /**
+     * Collect coverage data for the current isolate, and resets execution counters. Precise code
+coverage needs to have started.
+     */
+    export type takePreciseCoverageParameters = {
+    }
+    export type takePreciseCoverageReturnValue = {
+      /**
+       * Coverage data for the current isolate.
+       */
+      result: ScriptCoverage[];
+      /**
+       * Monotonically increasing time (in seconds) when the coverage update was taken in the backend.
+       */
+      timestamp: number;
+    }
+    /**
+     * Collect type profile.
+     */
+    export type takeTypeProfileParameters = {
+    }
+    export type takeTypeProfileReturnValue = {
+      /**
+       * Type profile for all scripts since startTypeProfile() was turned on.
+       */
+      result: ScriptTypeProfile[];
+    }
+    /**
+     * Enable counters collection.
+     */
+    export type enableCountersParameters = {
+    }
+    export type enableCountersReturnValue = {
+    }
+    /**
+     * Disable counters collection.
+     */
+    export type disableCountersParameters = {
+    }
+    export type disableCountersReturnValue = {
+    }
+    /**
+     * Retrieve counters.
+     */
+    export type getCountersParameters = {
+    }
+    export type getCountersReturnValue = {
+      /**
+       * Collected counters information.
+       */
+      result: CounterInfo[];
+    }
+    /**
+     * Enable run time call stats collection.
+     */
+    export type enableRuntimeCallStatsParameters = {
+    }
+    export type enableRuntimeCallStatsReturnValue = {
+    }
+    /**
+     * Disable run time call stats collection.
+     */
+    export type disableRuntimeCallStatsParameters = {
+    }
+    export type disableRuntimeCallStatsReturnValue = {
+    }
+    /**
+     * Retrieve run time call stats.
+     */
+    export type getRuntimeCallStatsParameters = {
+    }
+    export type getRuntimeCallStatsReturnValue = {
+      /**
+       * Collected runtime call counter information.
+       */
+      result: RuntimeCallCounterInfo[];
+    }
+  }
+  
+  /**
+   * Runtime domain exposes JavaScript runtime by means of remote evaluation and mirror objects.
+Evaluation results are returned as mirror object that expose object type, string representation
+and unique identifier that can be used for further object reference. Original objects are
+maintained in memory unless they are either explicitly released or are released along with the
+other objects in their object group.
+   */
+  export module Runtime {
+    /**
+     * Unique script identifier.
+     */
+    export type ScriptId = string;
+    /**
+     * Unique object identifier.
+     */
+    export type RemoteObjectId = string;
+    /**
+     * Primitive value which cannot be JSON-stringified. Includes values `-0`, `NaN`, `Infinity`,
+`-Infinity`, and bigint literals.
+     */
+    export type UnserializableValue = string;
+    /**
+     * Mirror object referencing original JavaScript object.
+     */
+    export interface RemoteObject {
+      /**
+       * Object type.
+       */
+      type: "object"|"function"|"undefined"|"string"|"number"|"boolean"|"symbol"|"bigint"|"wasm";
+      /**
+       * Object subtype hint. Specified for `object` or `wasm` type values only.
+       */
+      subtype?: "array"|"null"|"node"|"regexp"|"date"|"map"|"set"|"weakmap"|"weakset"|"iterator"|"generator"|"error"|"proxy"|"promise"|"typedarray"|"arraybuffer"|"dataview"|"i32"|"i64"|"f32"|"f64"|"v128"|"externref";
+      /**
+       * Object class (constructor) name. Specified for `object` type values only.
+       */
+      className?: string;
+      /**
+       * Remote object value in case of primitive values or JSON values (if it was requested).
+       */
+      value?: any;
+      /**
+       * Primitive value which can not be JSON-stringified does not have `value`, but gets this
+property.
+       */
+      unserializableValue?: UnserializableValue;
+      /**
+       * String representation of the object.
+       */
+      description?: string;
+      /**
+       * Unique object identifier (for non-primitive values).
+       */
+      objectId?: RemoteObjectId;
+      /**
+       * Preview containing abbreviated property values. Specified for `object` type values only.
+       */
+      preview?: ObjectPreview;
+      customPreview?: CustomPreview;
+    }
+    export interface CustomPreview {
+      /**
+       * The JSON-stringified result of formatter.header(object, config) call.
+It contains json ML array that represents RemoteObject.
+       */
+      header: string;
+      /**
+       * If formatter returns true as a result of formatter.hasBody call then bodyGetterId will
+contain RemoteObjectId for the function that returns result of formatter.body(object, config) call.
+The result value is json ML array.
+       */
+      bodyGetterId?: RemoteObjectId;
+    }
+    /**
+     * Object containing abbreviated remote object value.
+     */
+    export interface ObjectPreview {
+      /**
+       * Object type.
+       */
+      type: "object"|"function"|"undefined"|"string"|"number"|"boolean"|"symbol"|"bigint";
+      /**
+       * Object subtype hint. Specified for `object` type values only.
+       */
+      subtype?: "array"|"null"|"node"|"regexp"|"date"|"map"|"set"|"weakmap"|"weakset"|"iterator"|"generator"|"error";
+      /**
+       * String representation of the object.
+       */
+      description?: string;
+      /**
+       * True iff some of the properties or entries of the original object did not fit.
+       */
+      overflow: boolean;
+      /**
+       * List of the properties.
+       */
+      properties: PropertyPreview[];
+      /**
+       * List of the entries. Specified for `map` and `set` subtype values only.
+       */
+      entries?: EntryPreview[];
+    }
+    export interface PropertyPreview {
+      /**
+       * Property name.
+       */
+      name: string;
+      /**
+       * Object type. Accessor means that the property itself is an accessor property.
+       */
+      type: "object"|"function"|"undefined"|"string"|"number"|"boolean"|"symbol"|"accessor"|"bigint";
+      /**
+       * User-friendly property value string.
+       */
+      value?: string;
+      /**
+       * Nested value preview.
+       */
+      valuePreview?: ObjectPreview;
+      /**
+       * Object subtype hint. Specified for `object` type values only.
+       */
+      subtype?: "array"|"null"|"node"|"regexp"|"date"|"map"|"set"|"weakmap"|"weakset"|"iterator"|"generator"|"error";
+    }
+    export interface EntryPreview {
+      /**
+       * Preview of the key. Specified for map-like collection entries.
+       */
+      key?: ObjectPreview;
+      /**
+       * Preview of the value.
+       */
+      value: ObjectPreview;
+    }
+    /**
+     * Object property descriptor.
+     */
+    export interface PropertyDescriptor {
+      /**
+       * Property name or symbol description.
+       */
+      name: string;
+      /**
+       * The value associated with the property.
+       */
+      value?: RemoteObject;
+      /**
+       * True if the value associated with the property may be changed (data descriptors only).
+       */
+      writable?: boolean;
+      /**
+       * A function which serves as a getter for the property, or `undefined` if there is no getter
+(accessor descriptors only).
+       */
+      get?: RemoteObject;
+      /**
+       * A function which serves as a setter for the property, or `undefined` if there is no setter
+(accessor descriptors only).
+       */
+      set?: RemoteObject;
+      /**
+       * True if the type of this property descriptor may be changed and if the property may be
+deleted from the corresponding object.
+       */
+      configurable: boolean;
+      /**
+       * True if this property shows up during enumeration of the properties on the corresponding
+object.
+       */
+      enumerable: boolean;
+      /**
+       * True if the result was thrown during the evaluation.
+       */
+      wasThrown?: boolean;
+      /**
+       * True if the property is owned for the object.
+       */
+      isOwn?: boolean;
+      /**
+       * Property symbol object, if the property is of the `symbol` type.
+       */
+      symbol?: RemoteObject;
+    }
+    /**
+     * Object internal property descriptor. This property isn't normally visible in JavaScript code.
+     */
+    export interface InternalPropertyDescriptor {
+      /**
+       * Conventional property name.
+       */
+      name: string;
+      /**
+       * The value associated with the property.
+       */
+      value?: RemoteObject;
+    }
+    /**
+     * Object private field descriptor.
+     */
+    export interface PrivatePropertyDescriptor {
+      /**
+       * Private property name.
+       */
+      name: string;
+      /**
+       * The value associated with the private property.
+       */
+      value?: RemoteObject;
+      /**
+       * A function which serves as a getter for the private property,
+or `undefined` if there is no getter (accessor descriptors only).
+       */
+      get?: RemoteObject;
+      /**
+       * A function which serves as a setter for the private property,
+or `undefined` if there is no setter (accessor descriptors only).
+       */
+      set?: RemoteObject;
+    }
+    /**
+     * Represents function call argument. Either remote object id `objectId`, primitive `value`,
+unserializable primitive value or neither of (for undefined) them should be specified.
+     */
+    export interface CallArgument {
+      /**
+       * Primitive value or serializable javascript object.
+       */
+      value?: any;
+      /**
+       * Primitive value which can not be JSON-stringified.
+       */
+      unserializableValue?: UnserializableValue;
+      /**
+       * Remote object handle.
+       */
+      objectId?: RemoteObjectId;
+    }
+    /**
+     * Id of an execution context.
+     */
+    export type ExecutionContextId = number;
+    /**
+     * Description of an isolated world.
+     */
+    export interface ExecutionContextDescription {
+      /**
+       * Unique id of the execution context. It can be used to specify in which execution context
+script evaluation should be performed.
+       */
+      id: ExecutionContextId;
+      /**
+       * Execution context origin.
+       */
+      origin: string;
+      /**
+       * Human readable name describing given context.
+       */
+      name: string;
+      /**
+       * Embedder-specific auxiliary data.
+       */
+      auxData?: { [key: string]: string };
+    }
+    /**
+     * Detailed information about exception (or error) that was thrown during script compilation or
+execution.
+     */
+    export interface ExceptionDetails {
+      /**
+       * Exception id.
+       */
+      exceptionId: number;
+      /**
+       * Exception text, which should be used together with exception object when available.
+       */
+      text: string;
+      /**
+       * Line number of the exception location (0-based).
+       */
+      lineNumber: number;
+      /**
+       * Column number of the exception location (0-based).
+       */
+      columnNumber: number;
+      /**
+       * Script ID of the exception location.
+       */
+      scriptId?: ScriptId;
+      /**
+       * URL of the exception location, to be used when the script was not reported.
+       */
+      url?: string;
+      /**
+       * JavaScript stack trace if available.
+       */
+      stackTrace?: StackTrace;
+      /**
+       * Exception object if available.
+       */
+      exception?: RemoteObject;
+      /**
+       * Identifier of the context where exception happened.
+       */
+      executionContextId?: ExecutionContextId;
+    }
+    /**
+     * Number of milliseconds since epoch.
+     */
+    export type Timestamp = number;
+    /**
+     * Number of milliseconds.
+     */
+    export type TimeDelta = number;
+    /**
+     * Stack entry for runtime errors and assertions.
+     */
+    export interface CallFrame {
+      /**
+       * JavaScript function name.
+       */
+      functionName: string;
+      /**
+       * JavaScript script id.
+       */
+      scriptId: ScriptId;
+      /**
+       * JavaScript script name or url.
+       */
+      url: string;
+      /**
+       * JavaScript script line number (0-based).
+       */
+      lineNumber: number;
+      /**
+       * JavaScript script column number (0-based).
+       */
+      columnNumber: number;
+    }
+    /**
+     * Call frames for assertions or error messages.
+     */
+    export interface StackTrace {
+      /**
+       * String label of this stack trace. For async traces this may be a name of the function that
+initiated the async call.
+       */
+      description?: string;
+      /**
+       * JavaScript function name.
+       */
+      callFrames: CallFrame[];
+      /**
+       * Asynchronous JavaScript stack trace that preceded this stack, if available.
+       */
+      parent?: StackTrace;
+      /**
+       * Asynchronous JavaScript stack trace that preceded this stack, if available.
+       */
+      parentId?: StackTraceId;
+    }
+    /**
+     * Unique identifier of current debugger.
+     */
+    export type UniqueDebuggerId = string;
+    /**
+     * If `debuggerId` is set stack trace comes from another debugger and can be resolved there. This
+allows to track cross-debugger calls. See `Runtime.StackTrace` and `Debugger.paused` for usages.
+     */
+    export interface StackTraceId {
+      id: string;
+      debuggerId?: UniqueDebuggerId;
+    }
+    
+    /**
+     * Notification is issued every time when binding is called.
+     */
+    export type bindingCalledPayload = {
+      name: string;
+      payload: string;
+      /**
+       * Identifier of the context where the call was made.
+       */
+      executionContextId: ExecutionContextId;
+    }
+    /**
+     * Issued when console API was called.
+     */
+    export type consoleAPICalledPayload = {
+      /**
+       * Type of the call.
+       */
+      type: "log"|"debug"|"info"|"error"|"warning"|"dir"|"dirxml"|"table"|"trace"|"clear"|"startGroup"|"startGroupCollapsed"|"endGroup"|"assert"|"profile"|"profileEnd"|"count"|"timeEnd";
+      /**
+       * Call arguments.
+       */
+      args: RemoteObject[];
+      /**
+       * Identifier of the context where the call was made.
+       */
+      executionContextId: ExecutionContextId;
+      /**
+       * Call timestamp.
+       */
+      timestamp: Timestamp;
+      /**
+       * Stack trace captured when the call was made. The async stack chain is automatically reported for
+the following call types: `assert`, `error`, `trace`, `warning`. For other types the async call
+chain can be retrieved using `Debugger.getStackTrace` and `stackTrace.parentId` field.
+       */
+      stackTrace?: StackTrace;
+      /**
+       * Console context descriptor for calls on non-default console context (not console.*):
+'anonymous#unique-logger-id' for call on unnamed context, 'name#unique-logger-id' for call
+on named context.
+       */
+      context?: string;
+    }
+    /**
+     * Issued when unhandled exception was revoked.
+     */
+    export type exceptionRevokedPayload = {
+      /**
+       * Reason describing why exception was revoked.
+       */
+      reason: string;
+      /**
+       * The id of revoked exception, as reported in `exceptionThrown`.
+       */
+      exceptionId: number;
+    }
+    /**
+     * Issued when exception was thrown and unhandled.
+     */
+    export type exceptionThrownPayload = {
+      /**
+       * Timestamp of the exception.
+       */
+      timestamp: Timestamp;
+      exceptionDetails: ExceptionDetails;
+    }
+    /**
+     * Issued when new execution context is created.
+     */
+    export type executionContextCreatedPayload = {
+      /**
+       * A newly created execution context.
+       */
+      context: ExecutionContextDescription;
+    }
+    /**
+     * Issued when execution context is destroyed.
+     */
+    export type executionContextDestroyedPayload = {
+      /**
+       * Id of the destroyed context
+       */
+      executionContextId: ExecutionContextId;
+    }
+    /**
+     * Issued when all executionContexts were cleared in browser
+     */
+    export type executionContextsClearedPayload = void;
+    /**
+     * Issued when object should be inspected (for example, as a result of inspect() command line API
+call).
+     */
+    export type inspectRequestedPayload = {
+      object: RemoteObject;
+      hints: { [key: string]: string };
+    }
+    
+    /**
+     * Add handler to promise with given promise object id.
+     */
+    export type awaitPromiseParameters = {
+      /**
+       * Identifier of the promise.
+       */
+      promiseObjectId: RemoteObjectId;
+      /**
+       * Whether the result is expected to be a JSON object that should be sent by value.
+       */
+      returnByValue?: boolean;
+      /**
+       * Whether preview should be generated for the result.
+       */
+      generatePreview?: boolean;
+    }
+    export type awaitPromiseReturnValue = {
+      /**
+       * Promise result. Will contain rejected value if promise was rejected.
+       */
+      result: RemoteObject;
+      /**
+       * Exception details if stack strace is available.
+       */
+      exceptionDetails?: ExceptionDetails;
+    }
+    /**
+     * Calls function with given declaration on the given object. Object group of the result is
+inherited from the target object.
+     */
+    export type callFunctionOnParameters = {
+      /**
+       * Declaration of the function to call.
+       */
+      functionDeclaration: string;
+      /**
+       * Identifier of the object to call function on. Either objectId or executionContextId should
+be specified.
+       */
+      objectId?: RemoteObjectId;
+      /**
+       * Call arguments. All call arguments must belong to the same JavaScript world as the target
+object.
+       */
+      arguments?: CallArgument[];
+      /**
+       * In silent mode exceptions thrown during evaluation are not reported and do not pause
+execution. Overrides `setPauseOnException` state.
+       */
+      silent?: boolean;
+      /**
+       * Whether the result is expected to be a JSON object which should be sent by value.
+       */
+      returnByValue?: boolean;
+      /**
+       * Whether preview should be generated for the result.
+       */
+      generatePreview?: boolean;
+      /**
+       * Whether execution should be treated as initiated by user in the UI.
+       */
+      userGesture?: boolean;
+      /**
+       * Whether execution should `await` for resulting value and return once awaited promise is
+resolved.
+       */
+      awaitPromise?: boolean;
+      /**
+       * Specifies execution context which global object will be used to call function on. Either
+executionContextId or objectId should be specified.
+       */
+      executionContextId?: ExecutionContextId;
+      /**
+       * Symbolic group name that can be used to release multiple objects. If objectGroup is not
+specified and objectId is, objectGroup will be inherited from object.
+       */
+      objectGroup?: string;
+    }
+    export type callFunctionOnReturnValue = {
+      /**
+       * Call result.
+       */
+      result: RemoteObject;
+      /**
+       * Exception details.
+       */
+      exceptionDetails?: ExceptionDetails;
+    }
+    /**
+     * Compiles expression.
+     */
+    export type compileScriptParameters = {
+      /**
+       * Expression to compile.
+       */
+      expression: string;
+      /**
+       * Source url to be set for the script.
+       */
+      sourceURL: string;
+      /**
+       * Specifies whether the compiled script should be persisted.
+       */
+      persistScript: boolean;
+      /**
+       * Specifies in which execution context to perform script run. If the parameter is omitted the
+evaluation will be performed in the context of the inspected page.
+       */
+      executionContextId?: ExecutionContextId;
+    }
+    export type compileScriptReturnValue = {
+      /**
+       * Id of the script.
+       */
+      scriptId?: ScriptId;
+      /**
+       * Exception details.
+       */
+      exceptionDetails?: ExceptionDetails;
+    }
+    /**
+     * Disables reporting of execution contexts creation.
+     */
+    export type disableParameters = {
+    }
+    export type disableReturnValue = {
+    }
+    /**
+     * Discards collected exceptions and console API calls.
+     */
+    export type discardConsoleEntriesParameters = {
+    }
+    export type discardConsoleEntriesReturnValue = {
+    }
+    /**
+     * Enables reporting of execution contexts creation by means of `executionContextCreated` event.
+When the reporting gets enabled the event will be sent immediately for each existing execution
+context.
+     */
+    export type enableParameters = {
+    }
+    export type enableReturnValue = {
+    }
+    /**
+     * Evaluates expression on global object.
+     */
+    export type evaluateParameters = {
+      /**
+       * Expression to evaluate.
+       */
+      expression: string;
+      /**
+       * Symbolic group name that can be used to release multiple objects.
+       */
+      objectGroup?: string;
+      /**
+       * Determines whether Command Line API should be available during the evaluation.
+       */
+      includeCommandLineAPI?: boolean;
+      /**
+       * In silent mode exceptions thrown during evaluation are not reported and do not pause
+execution. Overrides `setPauseOnException` state.
+       */
+      silent?: boolean;
+      /**
+       * Specifies in which execution context to perform evaluation. If the parameter is omitted the
+evaluation will be performed in the context of the inspected page.
+       */
+      contextId?: ExecutionContextId;
+      /**
+       * Whether the result is expected to be a JSON object that should be sent by value.
+       */
+      returnByValue?: boolean;
+      /**
+       * Whether preview should be generated for the result.
+       */
+      generatePreview?: boolean;
+      /**
+       * Whether execution should be treated as initiated by user in the UI.
+       */
+      userGesture?: boolean;
+      /**
+       * Whether execution should `await` for resulting value and return once awaited promise is
+resolved.
+       */
+      awaitPromise?: boolean;
+      /**
+       * Whether to throw an exception if side effect cannot be ruled out during evaluation.
+This implies `disableBreaks` below.
+       */
+      throwOnSideEffect?: boolean;
+      /**
+       * Terminate execution after timing out (number of milliseconds).
+       */
+      timeout?: TimeDelta;
+      /**
+       * Disable breakpoints during execution.
+       */
+      disableBreaks?: boolean;
+      /**
+       * Setting this flag to true enables `let` re-declaration and top-level `await`.
+Note that `let` variables can only be re-declared if they originate from
+`replMode` themselves.
+       */
+      replMode?: boolean;
+      /**
+       * The Content Security Policy (CSP) for the target might block 'unsafe-eval'
+which includes eval(), Function(), setTimeout() and setInterval()
+when called with non-callable arguments. This flag bypasses CSP for this
+evaluation and allows unsafe-eval. Defaults to true.
+       */
+      allowUnsafeEvalBlockedByCSP?: boolean;
+    }
+    export type evaluateReturnValue = {
+      /**
+       * Evaluation result.
+       */
+      result: RemoteObject;
+      /**
+       * Exception details.
+       */
+      exceptionDetails?: ExceptionDetails;
+    }
+    /**
+     * Returns the isolate id.
+     */
+    export type getIsolateIdParameters = {
+    }
+    export type getIsolateIdReturnValue = {
+      /**
+       * The isolate id.
+       */
+      id: string;
+    }
+    /**
+     * Returns the JavaScript heap usage.
+It is the total usage of the corresponding isolate not scoped to a particular Runtime.
+     */
+    export type getHeapUsageParameters = {
+    }
+    export type getHeapUsageReturnValue = {
+      /**
+       * Used heap size in bytes.
+       */
+      usedSize: number;
+      /**
+       * Allocated heap size in bytes.
+       */
+      totalSize: number;
+    }
+    /**
+     * Returns properties of a given object. Object group of the result is inherited from the target
+object.
+     */
+    export type getPropertiesParameters = {
+      /**
+       * Identifier of the object to return properties for.
+       */
+      objectId: RemoteObjectId;
+      /**
+       * If true, returns properties belonging only to the element itself, not to its prototype
+chain.
+       */
+      ownProperties?: boolean;
+      /**
+       * If true, returns accessor properties (with getter/setter) only; internal properties are not
+returned either.
+       */
+      accessorPropertiesOnly?: boolean;
+      /**
+       * Whether preview should be generated for the results.
+       */
+      generatePreview?: boolean;
+    }
+    export type getPropertiesReturnValue = {
+      /**
+       * Object properties.
+       */
+      result: PropertyDescriptor[];
+      /**
+       * Internal object properties (only of the element itself).
+       */
+      internalProperties?: InternalPropertyDescriptor[];
+      /**
+       * Object private properties.
+       */
+      privateProperties?: PrivatePropertyDescriptor[];
+      /**
+       * Exception details.
+       */
+      exceptionDetails?: ExceptionDetails;
+    }
+    /**
+     * Returns all let, const and class variables from global scope.
+     */
+    export type globalLexicalScopeNamesParameters = {
+      /**
+       * Specifies in which execution context to lookup global scope variables.
+       */
+      executionContextId?: ExecutionContextId;
+    }
+    export type globalLexicalScopeNamesReturnValue = {
+      names: string[];
+    }
+    export type queryObjectsParameters = {
+      /**
+       * Identifier of the prototype to return objects for.
+       */
+      prototypeObjectId: RemoteObjectId;
+      /**
+       * Symbolic group name that can be used to release the results.
+       */
+      objectGroup?: string;
+    }
+    export type queryObjectsReturnValue = {
+      /**
+       * Array with objects.
+       */
+      objects: RemoteObject;
+    }
+    /**
+     * Releases remote object with given id.
+     */
+    export type releaseObjectParameters = {
+      /**
+       * Identifier of the object to release.
+       */
+      objectId: RemoteObjectId;
+    }
+    export type releaseObjectReturnValue = {
+    }
+    /**
+     * Releases all remote objects that belong to a given group.
+     */
+    export type releaseObjectGroupParameters = {
+      /**
+       * Symbolic object group name.
+       */
+      objectGroup: string;
+    }
+    export type releaseObjectGroupReturnValue = {
+    }
+    /**
+     * Tells inspected instance to run if it was waiting for debugger to attach.
+     */
+    export type runIfWaitingForDebuggerParameters = {
+    }
+    export type runIfWaitingForDebuggerReturnValue = {
+    }
+    /**
+     * Runs script with given id in a given context.
+     */
+    export type runScriptParameters = {
+      /**
+       * Id of the script to run.
+       */
+      scriptId: ScriptId;
+      /**
+       * Specifies in which execution context to perform script run. If the parameter is omitted the
+evaluation will be performed in the context of the inspected page.
+       */
+      executionContextId?: ExecutionContextId;
+      /**
+       * Symbolic group name that can be used to release multiple objects.
+       */
+      objectGroup?: string;
+      /**
+       * In silent mode exceptions thrown during evaluation are not reported and do not pause
+execution. Overrides `setPauseOnException` state.
+       */
+      silent?: boolean;
+      /**
+       * Determines whether Command Line API should be available during the evaluation.
+       */
+      includeCommandLineAPI?: boolean;
+      /**
+       * Whether the result is expected to be a JSON object which should be sent by value.
+       */
+      returnByValue?: boolean;
+      /**
+       * Whether preview should be generated for the result.
+       */
+      generatePreview?: boolean;
+      /**
+       * Whether execution should `await` for resulting value and return once awaited promise is
+resolved.
+       */
+      awaitPromise?: boolean;
+    }
+    export type runScriptReturnValue = {
+      /**
+       * Run result.
+       */
+      result: RemoteObject;
+      /**
+       * Exception details.
+       */
+      exceptionDetails?: ExceptionDetails;
+    }
+    /**
+     * Enables or disables async call stacks tracking.
+     */
+    export type setAsyncCallStackDepthParameters = {
+      /**
+       * Maximum depth of async call stacks. Setting to `0` will effectively disable collecting async
+call stacks (default).
+       */
+      maxDepth: number;
+    }
+    export type setAsyncCallStackDepthReturnValue = {
+    }
+    export type setCustomObjectFormatterEnabledParameters = {
+      enabled: boolean;
+    }
+    export type setCustomObjectFormatterEnabledReturnValue = {
+    }
+    export type setMaxCallStackSizeToCaptureParameters = {
+      size: number;
+    }
+    export type setMaxCallStackSizeToCaptureReturnValue = {
+    }
+    /**
+     * Terminate current or next JavaScript execution.
+Will cancel the termination when the outer-most script execution ends.
+     */
+    export type terminateExecutionParameters = {
+    }
+    export type terminateExecutionReturnValue = {
+    }
+    /**
+     * If executionContextId is empty, adds binding with the given name on the
+global objects of all inspected contexts, including those created later,
+bindings survive reloads.
+Binding function takes exactly one argument, this argument should be string,
+in case of any other input, function throws an exception.
+Each binding function call produces Runtime.bindingCalled notification.
+     */
+    export type addBindingParameters = {
+      name: string;
+      /**
+       * If specified, the binding would only be exposed to the specified
+execution context. If omitted and `executionContextName` is not set,
+the binding is exposed to all execution contexts of the target.
+This parameter is mutually exclusive with `executionContextName`.
+       */
+      executionContextId?: ExecutionContextId;
+      /**
+       * If specified, the binding is exposed to the executionContext with
+matching name, even for contexts created after the binding is added.
+See also `ExecutionContext.name` and `worldName` parameter to
+`Page.addScriptToEvaluateOnNewDocument`.
+This parameter is mutually exclusive with `executionContextId`.
+       */
+      executionContextName?: string;
+    }
+    export type addBindingReturnValue = {
+    }
+    /**
+     * This method does not remove binding function from global object but
+unsubscribes current runtime agent from Runtime.bindingCalled notifications.
+     */
+    export type removeBindingParameters = {
+      name: string;
+    }
+    export type removeBindingReturnValue = {
+    }
+  }
+  
+  /**
+   * This domain is deprecated.
+   */
+  export module Schema {
+    /**
+     * Description of the protocol domain.
+     */
+    export interface Domain {
+      /**
+       * Domain name.
+       */
+      name: string;
+      /**
+       * Domain version.
+       */
+      version: string;
+    }
+    
+    
+    /**
+     * Returns supported domains.
+     */
+    export type getDomainsParameters = {
+    }
+    export type getDomainsReturnValue = {
+      /**
+       * List of supported domains.
+       */
+      domains: Domain[];
+    }
+  }
+  
+  export interface Events {
+    "Animation.animationCanceled": Animation.animationCanceledPayload;
+    "Animation.animationCreated": Animation.animationCreatedPayload;
+    "Animation.animationStarted": Animation.animationStartedPayload;
+    "ApplicationCache.applicationCacheStatusUpdated": ApplicationCache.applicationCacheStatusUpdatedPayload;
+    "ApplicationCache.networkStateUpdated": ApplicationCache.networkStateUpdatedPayload;
+    "Audits.issueAdded": Audits.issueAddedPayload;
+    "BackgroundService.recordingStateChanged": BackgroundService.recordingStateChangedPayload;
+    "BackgroundService.backgroundServiceEventReceived": BackgroundService.backgroundServiceEventReceivedPayload;
+    "CSS.fontsUpdated": CSS.fontsUpdatedPayload;
+    "CSS.mediaQueryResultChanged": CSS.mediaQueryResultChangedPayload;
+    "CSS.styleSheetAdded": CSS.styleSheetAddedPayload;
+    "CSS.styleSheetChanged": CSS.styleSheetChangedPayload;
+    "CSS.styleSheetRemoved": CSS.styleSheetRemovedPayload;
+    "Cast.sinksUpdated": Cast.sinksUpdatedPayload;
+    "Cast.issueUpdated": Cast.issueUpdatedPayload;
+    "DOM.attributeModified": DOM.attributeModifiedPayload;
+    "DOM.attributeRemoved": DOM.attributeRemovedPayload;
+    "DOM.characterDataModified": DOM.characterDataModifiedPayload;
+    "DOM.childNodeCountUpdated": DOM.childNodeCountUpdatedPayload;
+    "DOM.childNodeInserted": DOM.childNodeInsertedPayload;
+    "DOM.childNodeRemoved": DOM.childNodeRemovedPayload;
+    "DOM.distributedNodesUpdated": DOM.distributedNodesUpdatedPayload;
+    "DOM.documentUpdated": DOM.documentUpdatedPayload;
+    "DOM.inlineStyleInvalidated": DOM.inlineStyleInvalidatedPayload;
+    "DOM.pseudoElementAdded": DOM.pseudoElementAddedPayload;
+    "DOM.pseudoElementRemoved": DOM.pseudoElementRemovedPayload;
+    "DOM.setChildNodes": DOM.setChildNodesPayload;
+    "DOM.shadowRootPopped": DOM.shadowRootPoppedPayload;
+    "DOM.shadowRootPushed": DOM.shadowRootPushedPayload;
+    "DOMStorage.domStorageItemAdded": DOMStorage.domStorageItemAddedPayload;
+    "DOMStorage.domStorageItemRemoved": DOMStorage.domStorageItemRemovedPayload;
+    "DOMStorage.domStorageItemUpdated": DOMStorage.domStorageItemUpdatedPayload;
+    "DOMStorage.domStorageItemsCleared": DOMStorage.domStorageItemsClearedPayload;
+    "Database.addDatabase": Database.addDatabasePayload;
+    "Emulation.virtualTimeBudgetExpired": Emulation.virtualTimeBudgetExpiredPayload;
+    "HeadlessExperimental.needsBeginFramesChanged": HeadlessExperimental.needsBeginFramesChangedPayload;
+    "Inspector.detached": Inspector.detachedPayload;
+    "Inspector.targetCrashed": Inspector.targetCrashedPayload;
+    "Inspector.targetReloadedAfterCrash": Inspector.targetReloadedAfterCrashPayload;
+    "LayerTree.layerPainted": LayerTree.layerPaintedPayload;
+    "LayerTree.layerTreeDidChange": LayerTree.layerTreeDidChangePayload;
+    "Log.entryAdded": Log.entryAddedPayload;
+    "Network.dataReceived": Network.dataReceivedPayload;
+    "Network.eventSourceMessageReceived": Network.eventSourceMessageReceivedPayload;
+    "Network.loadingFailed": Network.loadingFailedPayload;
+    "Network.loadingFinished": Network.loadingFinishedPayload;
+    "Network.requestIntercepted": Network.requestInterceptedPayload;
+    "Network.requestServedFromCache": Network.requestServedFromCachePayload;
+    "Network.requestWillBeSent": Network.requestWillBeSentPayload;
+    "Network.resourceChangedPriority": Network.resourceChangedPriorityPayload;
+    "Network.signedExchangeReceived": Network.signedExchangeReceivedPayload;
+    "Network.responseReceived": Network.responseReceivedPayload;
+    "Network.webSocketClosed": Network.webSocketClosedPayload;
+    "Network.webSocketCreated": Network.webSocketCreatedPayload;
+    "Network.webSocketFrameError": Network.webSocketFrameErrorPayload;
+    "Network.webSocketFrameReceived": Network.webSocketFrameReceivedPayload;
+    "Network.webSocketFrameSent": Network.webSocketFrameSentPayload;
+    "Network.webSocketHandshakeResponseReceived": Network.webSocketHandshakeResponseReceivedPayload;
+    "Network.webSocketWillSendHandshakeRequest": Network.webSocketWillSendHandshakeRequestPayload;
+    "Network.webTransportCreated": Network.webTransportCreatedPayload;
+    "Network.webTransportClosed": Network.webTransportClosedPayload;
+    "Network.requestWillBeSentExtraInfo": Network.requestWillBeSentExtraInfoPayload;
+    "Network.responseReceivedExtraInfo": Network.responseReceivedExtraInfoPayload;
+    "Network.trustTokenOperationDone": Network.trustTokenOperationDonePayload;
+    "Overlay.inspectNodeRequested": Overlay.inspectNodeRequestedPayload;
+    "Overlay.nodeHighlightRequested": Overlay.nodeHighlightRequestedPayload;
+    "Overlay.screenshotRequested": Overlay.screenshotRequestedPayload;
+    "Overlay.inspectModeCanceled": Overlay.inspectModeCanceledPayload;
+    "Page.domContentEventFired": Page.domContentEventFiredPayload;
+    "Page.fileChooserOpened": Page.fileChooserOpenedPayload;
+    "Page.frameAttached": Page.frameAttachedPayload;
+    "Page.frameClearedScheduledNavigation": Page.frameClearedScheduledNavigationPayload;
+    "Page.frameDetached": Page.frameDetachedPayload;
+    "Page.frameNavigated": Page.frameNavigatedPayload;
+    "Page.documentOpened": Page.documentOpenedPayload;
+    "Page.frameResized": Page.frameResizedPayload;
+    "Page.frameRequestedNavigation": Page.frameRequestedNavigationPayload;
+    "Page.frameScheduledNavigation": Page.frameScheduledNavigationPayload;
+    "Page.frameStartedLoading": Page.frameStartedLoadingPayload;
+    "Page.frameStoppedLoading": Page.frameStoppedLoadingPayload;
+    "Page.downloadWillBegin": Page.downloadWillBeginPayload;
+    "Page.downloadProgress": Page.downloadProgressPayload;
+    "Page.interstitialHidden": Page.interstitialHiddenPayload;
+    "Page.interstitialShown": Page.interstitialShownPayload;
+    "Page.javascriptDialogClosed": Page.javascriptDialogClosedPayload;
+    "Page.javascriptDialogOpening": Page.javascriptDialogOpeningPayload;
+    "Page.lifecycleEvent": Page.lifecycleEventPayload;
+    "Page.loadEventFired": Page.loadEventFiredPayload;
+    "Page.navigatedWithinDocument": Page.navigatedWithinDocumentPayload;
+    "Page.screencastFrame": Page.screencastFramePayload;
+    "Page.screencastVisibilityChanged": Page.screencastVisibilityChangedPayload;
+    "Page.windowOpen": Page.windowOpenPayload;
+    "Page.compilationCacheProduced": Page.compilationCacheProducedPayload;
+    "Performance.metrics": Performance.metricsPayload;
+    "Security.certificateError": Security.certificateErrorPayload;
+    "Security.visibleSecurityStateChanged": Security.visibleSecurityStateChangedPayload;
+    "Security.securityStateChanged": Security.securityStateChangedPayload;
+    "ServiceWorker.workerErrorReported": ServiceWorker.workerErrorReportedPayload;
+    "ServiceWorker.workerRegistrationUpdated": ServiceWorker.workerRegistrationUpdatedPayload;
+    "ServiceWorker.workerVersionUpdated": ServiceWorker.workerVersionUpdatedPayload;
+    "Storage.cacheStorageContentUpdated": Storage.cacheStorageContentUpdatedPayload;
+    "Storage.cacheStorageListUpdated": Storage.cacheStorageListUpdatedPayload;
+    "Storage.indexedDBContentUpdated": Storage.indexedDBContentUpdatedPayload;
+    "Storage.indexedDBListUpdated": Storage.indexedDBListUpdatedPayload;
+    "Target.attachedToTarget": Target.attachedToTargetPayload;
+    "Target.detachedFromTarget": Target.detachedFromTargetPayload;
+    "Target.receivedMessageFromTarget": Target.receivedMessageFromTargetPayload;
+    "Target.targetCreated": Target.targetCreatedPayload;
+    "Target.targetDestroyed": Target.targetDestroyedPayload;
+    "Target.targetCrashed": Target.targetCrashedPayload;
+    "Target.targetInfoChanged": Target.targetInfoChangedPayload;
+    "Tethering.accepted": Tethering.acceptedPayload;
+    "Tracing.bufferUsage": Tracing.bufferUsagePayload;
+    "Tracing.dataCollected": Tracing.dataCollectedPayload;
+    "Tracing.tracingComplete": Tracing.tracingCompletePayload;
+    "Fetch.requestPaused": Fetch.requestPausedPayload;
+    "Fetch.authRequired": Fetch.authRequiredPayload;
+    "WebAudio.contextCreated": WebAudio.contextCreatedPayload;
+    "WebAudio.contextWillBeDestroyed": WebAudio.contextWillBeDestroyedPayload;
+    "WebAudio.contextChanged": WebAudio.contextChangedPayload;
+    "WebAudio.audioListenerCreated": WebAudio.audioListenerCreatedPayload;
+    "WebAudio.audioListenerWillBeDestroyed": WebAudio.audioListenerWillBeDestroyedPayload;
+    "WebAudio.audioNodeCreated": WebAudio.audioNodeCreatedPayload;
+    "WebAudio.audioNodeWillBeDestroyed": WebAudio.audioNodeWillBeDestroyedPayload;
+    "WebAudio.audioParamCreated": WebAudio.audioParamCreatedPayload;
+    "WebAudio.audioParamWillBeDestroyed": WebAudio.audioParamWillBeDestroyedPayload;
+    "WebAudio.nodesConnected": WebAudio.nodesConnectedPayload;
+    "WebAudio.nodesDisconnected": WebAudio.nodesDisconnectedPayload;
+    "WebAudio.nodeParamConnected": WebAudio.nodeParamConnectedPayload;
+    "WebAudio.nodeParamDisconnected": WebAudio.nodeParamDisconnectedPayload;
+    "Media.playerPropertiesChanged": Media.playerPropertiesChangedPayload;
+    "Media.playerEventsAdded": Media.playerEventsAddedPayload;
+    "Media.playerMessagesLogged": Media.playerMessagesLoggedPayload;
+    "Media.playerErrorsRaised": Media.playerErrorsRaisedPayload;
+    "Media.playersCreated": Media.playersCreatedPayload;
+    "Console.messageAdded": Console.messageAddedPayload;
+    "Debugger.breakpointResolved": Debugger.breakpointResolvedPayload;
+    "Debugger.paused": Debugger.pausedPayload;
+    "Debugger.resumed": Debugger.resumedPayload;
+    "Debugger.scriptFailedToParse": Debugger.scriptFailedToParsePayload;
+    "Debugger.scriptParsed": Debugger.scriptParsedPayload;
+    "HeapProfiler.addHeapSnapshotChunk": HeapProfiler.addHeapSnapshotChunkPayload;
+    "HeapProfiler.heapStatsUpdate": HeapProfiler.heapStatsUpdatePayload;
+    "HeapProfiler.lastSeenObjectId": HeapProfiler.lastSeenObjectIdPayload;
+    "HeapProfiler.reportHeapSnapshotProgress": HeapProfiler.reportHeapSnapshotProgressPayload;
+    "HeapProfiler.resetProfiles": HeapProfiler.resetProfilesPayload;
+    "Profiler.consoleProfileFinished": Profiler.consoleProfileFinishedPayload;
+    "Profiler.consoleProfileStarted": Profiler.consoleProfileStartedPayload;
+    "Profiler.preciseCoverageDeltaUpdate": Profiler.preciseCoverageDeltaUpdatePayload;
+    "Runtime.bindingCalled": Runtime.bindingCalledPayload;
+    "Runtime.consoleAPICalled": Runtime.consoleAPICalledPayload;
+    "Runtime.exceptionRevoked": Runtime.exceptionRevokedPayload;
+    "Runtime.exceptionThrown": Runtime.exceptionThrownPayload;
+    "Runtime.executionContextCreated": Runtime.executionContextCreatedPayload;
+    "Runtime.executionContextDestroyed": Runtime.executionContextDestroyedPayload;
+    "Runtime.executionContextsCleared": Runtime.executionContextsClearedPayload;
+    "Runtime.inspectRequested": Runtime.inspectRequestedPayload;
+  }
+  export interface CommandParameters {
+    "Accessibility.disable": Accessibility.disableParameters;
+    "Accessibility.enable": Accessibility.enableParameters;
+    "Accessibility.getPartialAXTree": Accessibility.getPartialAXTreeParameters;
+    "Accessibility.getFullAXTree": Accessibility.getFullAXTreeParameters;
+    "Accessibility.getChildAXNodes": Accessibility.getChildAXNodesParameters;
+    "Accessibility.queryAXTree": Accessibility.queryAXTreeParameters;
+    "Animation.disable": Animation.disableParameters;
+    "Animation.enable": Animation.enableParameters;
+    "Animation.getCurrentTime": Animation.getCurrentTimeParameters;
+    "Animation.getPlaybackRate": Animation.getPlaybackRateParameters;
+    "Animation.releaseAnimations": Animation.releaseAnimationsParameters;
+    "Animation.resolveAnimation": Animation.resolveAnimationParameters;
+    "Animation.seekAnimations": Animation.seekAnimationsParameters;
+    "Animation.setPaused": Animation.setPausedParameters;
+    "Animation.setPlaybackRate": Animation.setPlaybackRateParameters;
+    "Animation.setTiming": Animation.setTimingParameters;
+    "ApplicationCache.enable": ApplicationCache.enableParameters;
+    "ApplicationCache.getApplicationCacheForFrame": ApplicationCache.getApplicationCacheForFrameParameters;
+    "ApplicationCache.getFramesWithManifests": ApplicationCache.getFramesWithManifestsParameters;
+    "ApplicationCache.getManifestForFrame": ApplicationCache.getManifestForFrameParameters;
+    "Audits.getEncodedResponse": Audits.getEncodedResponseParameters;
+    "Audits.disable": Audits.disableParameters;
+    "Audits.enable": Audits.enableParameters;
+    "BackgroundService.startObserving": BackgroundService.startObservingParameters;
+    "BackgroundService.stopObserving": BackgroundService.stopObservingParameters;
+    "BackgroundService.setRecording": BackgroundService.setRecordingParameters;
+    "BackgroundService.clearEvents": BackgroundService.clearEventsParameters;
+    "Browser.setPermission": Browser.setPermissionParameters;
+    "Browser.grantPermissions": Browser.grantPermissionsParameters;
+    "Browser.resetPermissions": Browser.resetPermissionsParameters;
+    "Browser.setDownloadBehavior": Browser.setDownloadBehaviorParameters;
+    "Browser.close": Browser.closeParameters;
+    "Browser.crash": Browser.crashParameters;
+    "Browser.crashGpuProcess": Browser.crashGpuProcessParameters;
+    "Browser.getVersion": Browser.getVersionParameters;
+    "Browser.getBrowserCommandLine": Browser.getBrowserCommandLineParameters;
+    "Browser.getHistograms": Browser.getHistogramsParameters;
+    "Browser.getHistogram": Browser.getHistogramParameters;
+    "Browser.getWindowBounds": Browser.getWindowBoundsParameters;
+    "Browser.getWindowForTarget": Browser.getWindowForTargetParameters;
+    "Browser.setWindowBounds": Browser.setWindowBoundsParameters;
+    "Browser.setDockTile": Browser.setDockTileParameters;
+    "Browser.executeBrowserCommand": Browser.executeBrowserCommandParameters;
+    "CSS.addRule": CSS.addRuleParameters;
+    "CSS.collectClassNames": CSS.collectClassNamesParameters;
+    "CSS.createStyleSheet": CSS.createStyleSheetParameters;
+    "CSS.disable": CSS.disableParameters;
+    "CSS.enable": CSS.enableParameters;
+    "CSS.forcePseudoState": CSS.forcePseudoStateParameters;
+    "CSS.getBackgroundColors": CSS.getBackgroundColorsParameters;
+    "CSS.getComputedStyleForNode": CSS.getComputedStyleForNodeParameters;
+    "CSS.getInlineStylesForNode": CSS.getInlineStylesForNodeParameters;
+    "CSS.getMatchedStylesForNode": CSS.getMatchedStylesForNodeParameters;
+    "CSS.getMediaQueries": CSS.getMediaQueriesParameters;
+    "CSS.getPlatformFontsForNode": CSS.getPlatformFontsForNodeParameters;
+    "CSS.getStyleSheetText": CSS.getStyleSheetTextParameters;
+    "CSS.trackComputedStyleUpdates": CSS.trackComputedStyleUpdatesParameters;
+    "CSS.takeComputedStyleUpdates": CSS.takeComputedStyleUpdatesParameters;
+    "CSS.setEffectivePropertyValueForNode": CSS.setEffectivePropertyValueForNodeParameters;
+    "CSS.setKeyframeKey": CSS.setKeyframeKeyParameters;
+    "CSS.setMediaText": CSS.setMediaTextParameters;
+    "CSS.setRuleSelector": CSS.setRuleSelectorParameters;
+    "CSS.setStyleSheetText": CSS.setStyleSheetTextParameters;
+    "CSS.setStyleTexts": CSS.setStyleTextsParameters;
+    "CSS.startRuleUsageTracking": CSS.startRuleUsageTrackingParameters;
+    "CSS.stopRuleUsageTracking": CSS.stopRuleUsageTrackingParameters;
+    "CSS.takeCoverageDelta": CSS.takeCoverageDeltaParameters;
+    "CSS.setLocalFontsEnabled": CSS.setLocalFontsEnabledParameters;
+    "CacheStorage.deleteCache": CacheStorage.deleteCacheParameters;
+    "CacheStorage.deleteEntry": CacheStorage.deleteEntryParameters;
+    "CacheStorage.requestCacheNames": CacheStorage.requestCacheNamesParameters;
+    "CacheStorage.requestCachedResponse": CacheStorage.requestCachedResponseParameters;
+    "CacheStorage.requestEntries": CacheStorage.requestEntriesParameters;
+    "Cast.enable": Cast.enableParameters;
+    "Cast.disable": Cast.disableParameters;
+    "Cast.setSinkToUse": Cast.setSinkToUseParameters;
+    "Cast.startTabMirroring": Cast.startTabMirroringParameters;
+    "Cast.stopCasting": Cast.stopCastingParameters;
+    "DOM.collectClassNamesFromSubtree": DOM.collectClassNamesFromSubtreeParameters;
+    "DOM.copyTo": DOM.copyToParameters;
+    "DOM.describeNode": DOM.describeNodeParameters;
+    "DOM.scrollIntoViewIfNeeded": DOM.scrollIntoViewIfNeededParameters;
+    "DOM.disable": DOM.disableParameters;
+    "DOM.discardSearchResults": DOM.discardSearchResultsParameters;
+    "DOM.enable": DOM.enableParameters;
+    "DOM.focus": DOM.focusParameters;
+    "DOM.getAttributes": DOM.getAttributesParameters;
+    "DOM.getBoxModel": DOM.getBoxModelParameters;
+    "DOM.getContentQuads": DOM.getContentQuadsParameters;
+    "DOM.getDocument": DOM.getDocumentParameters;
+    "DOM.getFlattenedDocument": DOM.getFlattenedDocumentParameters;
+    "DOM.getNodesForSubtreeByStyle": DOM.getNodesForSubtreeByStyleParameters;
+    "DOM.getNodeForLocation": DOM.getNodeForLocationParameters;
+    "DOM.getOuterHTML": DOM.getOuterHTMLParameters;
+    "DOM.getRelayoutBoundary": DOM.getRelayoutBoundaryParameters;
+    "DOM.getSearchResults": DOM.getSearchResultsParameters;
+    "DOM.hideHighlight": DOM.hideHighlightParameters;
+    "DOM.highlightNode": DOM.highlightNodeParameters;
+    "DOM.highlightRect": DOM.highlightRectParameters;
+    "DOM.markUndoableState": DOM.markUndoableStateParameters;
+    "DOM.moveTo": DOM.moveToParameters;
+    "DOM.performSearch": DOM.performSearchParameters;
+    "DOM.pushNodeByPathToFrontend": DOM.pushNodeByPathToFrontendParameters;
+    "DOM.pushNodesByBackendIdsToFrontend": DOM.pushNodesByBackendIdsToFrontendParameters;
+    "DOM.querySelector": DOM.querySelectorParameters;
+    "DOM.querySelectorAll": DOM.querySelectorAllParameters;
+    "DOM.redo": DOM.redoParameters;
+    "DOM.removeAttribute": DOM.removeAttributeParameters;
+    "DOM.removeNode": DOM.removeNodeParameters;
+    "DOM.requestChildNodes": DOM.requestChildNodesParameters;
+    "DOM.requestNode": DOM.requestNodeParameters;
+    "DOM.resolveNode": DOM.resolveNodeParameters;
+    "DOM.setAttributeValue": DOM.setAttributeValueParameters;
+    "DOM.setAttributesAsText": DOM.setAttributesAsTextParameters;
+    "DOM.setFileInputFiles": DOM.setFileInputFilesParameters;
+    "DOM.setNodeStackTracesEnabled": DOM.setNodeStackTracesEnabledParameters;
+    "DOM.getNodeStackTraces": DOM.getNodeStackTracesParameters;
+    "DOM.getFileInfo": DOM.getFileInfoParameters;
+    "DOM.setInspectedNode": DOM.setInspectedNodeParameters;
+    "DOM.setNodeName": DOM.setNodeNameParameters;
+    "DOM.setNodeValue": DOM.setNodeValueParameters;
+    "DOM.setOuterHTML": DOM.setOuterHTMLParameters;
+    "DOM.undo": DOM.undoParameters;
+    "DOM.getFrameOwner": DOM.getFrameOwnerParameters;
+    "DOMDebugger.getEventListeners": DOMDebugger.getEventListenersParameters;
+    "DOMDebugger.removeDOMBreakpoint": DOMDebugger.removeDOMBreakpointParameters;
+    "DOMDebugger.removeEventListenerBreakpoint": DOMDebugger.removeEventListenerBreakpointParameters;
+    "DOMDebugger.removeInstrumentationBreakpoint": DOMDebugger.removeInstrumentationBreakpointParameters;
+    "DOMDebugger.removeXHRBreakpoint": DOMDebugger.removeXHRBreakpointParameters;
+    "DOMDebugger.setBreakOnCSPViolation": DOMDebugger.setBreakOnCSPViolationParameters;
+    "DOMDebugger.setDOMBreakpoint": DOMDebugger.setDOMBreakpointParameters;
+    "DOMDebugger.setEventListenerBreakpoint": DOMDebugger.setEventListenerBreakpointParameters;
+    "DOMDebugger.setInstrumentationBreakpoint": DOMDebugger.setInstrumentationBreakpointParameters;
+    "DOMDebugger.setXHRBreakpoint": DOMDebugger.setXHRBreakpointParameters;
+    "DOMSnapshot.disable": DOMSnapshot.disableParameters;
+    "DOMSnapshot.enable": DOMSnapshot.enableParameters;
+    "DOMSnapshot.getSnapshot": DOMSnapshot.getSnapshotParameters;
+    "DOMSnapshot.captureSnapshot": DOMSnapshot.captureSnapshotParameters;
+    "DOMStorage.clear": DOMStorage.clearParameters;
+    "DOMStorage.disable": DOMStorage.disableParameters;
+    "DOMStorage.enable": DOMStorage.enableParameters;
+    "DOMStorage.getDOMStorageItems": DOMStorage.getDOMStorageItemsParameters;
+    "DOMStorage.removeDOMStorageItem": DOMStorage.removeDOMStorageItemParameters;
+    "DOMStorage.setDOMStorageItem": DOMStorage.setDOMStorageItemParameters;
+    "Database.disable": Database.disableParameters;
+    "Database.enable": Database.enableParameters;
+    "Database.executeSQL": Database.executeSQLParameters;
+    "Database.getDatabaseTableNames": Database.getDatabaseTableNamesParameters;
+    "DeviceOrientation.clearDeviceOrientationOverride": DeviceOrientation.clearDeviceOrientationOverrideParameters;
+    "DeviceOrientation.setDeviceOrientationOverride": DeviceOrientation.setDeviceOrientationOverrideParameters;
+    "Emulation.canEmulate": Emulation.canEmulateParameters;
+    "Emulation.clearDeviceMetricsOverride": Emulation.clearDeviceMetricsOverrideParameters;
+    "Emulation.clearGeolocationOverride": Emulation.clearGeolocationOverrideParameters;
+    "Emulation.resetPageScaleFactor": Emulation.resetPageScaleFactorParameters;
+    "Emulation.setFocusEmulationEnabled": Emulation.setFocusEmulationEnabledParameters;
+    "Emulation.setCPUThrottlingRate": Emulation.setCPUThrottlingRateParameters;
+    "Emulation.setDefaultBackgroundColorOverride": Emulation.setDefaultBackgroundColorOverrideParameters;
+    "Emulation.setDeviceMetricsOverride": Emulation.setDeviceMetricsOverrideParameters;
+    "Emulation.setScrollbarsHidden": Emulation.setScrollbarsHiddenParameters;
+    "Emulation.setDocumentCookieDisabled": Emulation.setDocumentCookieDisabledParameters;
+    "Emulation.setEmitTouchEventsForMouse": Emulation.setEmitTouchEventsForMouseParameters;
+    "Emulation.setEmulatedMedia": Emulation.setEmulatedMediaParameters;
+    "Emulation.setEmulatedVisionDeficiency": Emulation.setEmulatedVisionDeficiencyParameters;
+    "Emulation.setGeolocationOverride": Emulation.setGeolocationOverrideParameters;
+    "Emulation.setIdleOverride": Emulation.setIdleOverrideParameters;
+    "Emulation.clearIdleOverride": Emulation.clearIdleOverrideParameters;
+    "Emulation.setNavigatorOverrides": Emulation.setNavigatorOverridesParameters;
+    "Emulation.setPageScaleFactor": Emulation.setPageScaleFactorParameters;
+    "Emulation.setScriptExecutionDisabled": Emulation.setScriptExecutionDisabledParameters;
+    "Emulation.setTouchEmulationEnabled": Emulation.setTouchEmulationEnabledParameters;
+    "Emulation.setVirtualTimePolicy": Emulation.setVirtualTimePolicyParameters;
+    "Emulation.setLocaleOverride": Emulation.setLocaleOverrideParameters;
+    "Emulation.setTimezoneOverride": Emulation.setTimezoneOverrideParameters;
+    "Emulation.setVisibleSize": Emulation.setVisibleSizeParameters;
+    "Emulation.setDisabledImageTypes": Emulation.setDisabledImageTypesParameters;
+    "Emulation.setUserAgentOverride": Emulation.setUserAgentOverrideParameters;
+    "HeadlessExperimental.beginFrame": HeadlessExperimental.beginFrameParameters;
+    "HeadlessExperimental.disable": HeadlessExperimental.disableParameters;
+    "HeadlessExperimental.enable": HeadlessExperimental.enableParameters;
+    "IO.close": IO.closeParameters;
+    "IO.read": IO.readParameters;
+    "IO.resolveBlob": IO.resolveBlobParameters;
+    "IndexedDB.clearObjectStore": IndexedDB.clearObjectStoreParameters;
+    "IndexedDB.deleteDatabase": IndexedDB.deleteDatabaseParameters;
+    "IndexedDB.deleteObjectStoreEntries": IndexedDB.deleteObjectStoreEntriesParameters;
+    "IndexedDB.disable": IndexedDB.disableParameters;
+    "IndexedDB.enable": IndexedDB.enableParameters;
+    "IndexedDB.requestData": IndexedDB.requestDataParameters;
+    "IndexedDB.getMetadata": IndexedDB.getMetadataParameters;
+    "IndexedDB.requestDatabase": IndexedDB.requestDatabaseParameters;
+    "IndexedDB.requestDatabaseNames": IndexedDB.requestDatabaseNamesParameters;
+    "Input.dispatchKeyEvent": Input.dispatchKeyEventParameters;
+    "Input.insertText": Input.insertTextParameters;
+    "Input.dispatchMouseEvent": Input.dispatchMouseEventParameters;
+    "Input.dispatchTouchEvent": Input.dispatchTouchEventParameters;
+    "Input.emulateTouchFromMouseEvent": Input.emulateTouchFromMouseEventParameters;
+    "Input.setIgnoreInputEvents": Input.setIgnoreInputEventsParameters;
+    "Input.synthesizePinchGesture": Input.synthesizePinchGestureParameters;
+    "Input.synthesizeScrollGesture": Input.synthesizeScrollGestureParameters;
+    "Input.synthesizeTapGesture": Input.synthesizeTapGestureParameters;
+    "Inspector.disable": Inspector.disableParameters;
+    "Inspector.enable": Inspector.enableParameters;
+    "LayerTree.compositingReasons": LayerTree.compositingReasonsParameters;
+    "LayerTree.disable": LayerTree.disableParameters;
+    "LayerTree.enable": LayerTree.enableParameters;
+    "LayerTree.loadSnapshot": LayerTree.loadSnapshotParameters;
+    "LayerTree.makeSnapshot": LayerTree.makeSnapshotParameters;
+    "LayerTree.profileSnapshot": LayerTree.profileSnapshotParameters;
+    "LayerTree.releaseSnapshot": LayerTree.releaseSnapshotParameters;
+    "LayerTree.replaySnapshot": LayerTree.replaySnapshotParameters;
+    "LayerTree.snapshotCommandLog": LayerTree.snapshotCommandLogParameters;
+    "Log.clear": Log.clearParameters;
+    "Log.disable": Log.disableParameters;
+    "Log.enable": Log.enableParameters;
+    "Log.startViolationsReport": Log.startViolationsReportParameters;
+    "Log.stopViolationsReport": Log.stopViolationsReportParameters;
+    "Memory.getDOMCounters": Memory.getDOMCountersParameters;
+    "Memory.prepareForLeakDetection": Memory.prepareForLeakDetectionParameters;
+    "Memory.forciblyPurgeJavaScriptMemory": Memory.forciblyPurgeJavaScriptMemoryParameters;
+    "Memory.setPressureNotificationsSuppressed": Memory.setPressureNotificationsSuppressedParameters;
+    "Memory.simulatePressureNotification": Memory.simulatePressureNotificationParameters;
+    "Memory.startSampling": Memory.startSamplingParameters;
+    "Memory.stopSampling": Memory.stopSamplingParameters;
+    "Memory.getAllTimeSamplingProfile": Memory.getAllTimeSamplingProfileParameters;
+    "Memory.getBrowserSamplingProfile": Memory.getBrowserSamplingProfileParameters;
+    "Memory.getSamplingProfile": Memory.getSamplingProfileParameters;
+    "Network.canClearBrowserCache": Network.canClearBrowserCacheParameters;
+    "Network.canClearBrowserCookies": Network.canClearBrowserCookiesParameters;
+    "Network.canEmulateNetworkConditions": Network.canEmulateNetworkConditionsParameters;
+    "Network.clearBrowserCache": Network.clearBrowserCacheParameters;
+    "Network.clearBrowserCookies": Network.clearBrowserCookiesParameters;
+    "Network.continueInterceptedRequest": Network.continueInterceptedRequestParameters;
+    "Network.deleteCookies": Network.deleteCookiesParameters;
+    "Network.disable": Network.disableParameters;
+    "Network.emulateNetworkConditions": Network.emulateNetworkConditionsParameters;
+    "Network.enable": Network.enableParameters;
+    "Network.getAllCookies": Network.getAllCookiesParameters;
+    "Network.getCertificate": Network.getCertificateParameters;
+    "Network.getCookies": Network.getCookiesParameters;
+    "Network.getResponseBody": Network.getResponseBodyParameters;
+    "Network.getRequestPostData": Network.getRequestPostDataParameters;
+    "Network.getResponseBodyForInterception": Network.getResponseBodyForInterceptionParameters;
+    "Network.takeResponseBodyForInterceptionAsStream": Network.takeResponseBodyForInterceptionAsStreamParameters;
+    "Network.replayXHR": Network.replayXHRParameters;
+    "Network.searchInResponseBody": Network.searchInResponseBodyParameters;
+    "Network.setBlockedURLs": Network.setBlockedURLsParameters;
+    "Network.setBypassServiceWorker": Network.setBypassServiceWorkerParameters;
+    "Network.setCacheDisabled": Network.setCacheDisabledParameters;
+    "Network.setCookie": Network.setCookieParameters;
+    "Network.setCookies": Network.setCookiesParameters;
+    "Network.setDataSizeLimitsForTest": Network.setDataSizeLimitsForTestParameters;
+    "Network.setExtraHTTPHeaders": Network.setExtraHTTPHeadersParameters;
+    "Network.setAttachDebugStack": Network.setAttachDebugStackParameters;
+    "Network.setRequestInterception": Network.setRequestInterceptionParameters;
+    "Network.setUserAgentOverride": Network.setUserAgentOverrideParameters;
+    "Network.getSecurityIsolationStatus": Network.getSecurityIsolationStatusParameters;
+    "Network.loadNetworkResource": Network.loadNetworkResourceParameters;
+    "Overlay.disable": Overlay.disableParameters;
+    "Overlay.enable": Overlay.enableParameters;
+    "Overlay.getHighlightObjectForTest": Overlay.getHighlightObjectForTestParameters;
+    "Overlay.getGridHighlightObjectsForTest": Overlay.getGridHighlightObjectsForTestParameters;
+    "Overlay.getSourceOrderHighlightObjectForTest": Overlay.getSourceOrderHighlightObjectForTestParameters;
+    "Overlay.hideHighlight": Overlay.hideHighlightParameters;
+    "Overlay.highlightFrame": Overlay.highlightFrameParameters;
+    "Overlay.highlightNode": Overlay.highlightNodeParameters;
+    "Overlay.highlightQuad": Overlay.highlightQuadParameters;
+    "Overlay.highlightRect": Overlay.highlightRectParameters;
+    "Overlay.highlightSourceOrder": Overlay.highlightSourceOrderParameters;
+    "Overlay.setInspectMode": Overlay.setInspectModeParameters;
+    "Overlay.setShowAdHighlights": Overlay.setShowAdHighlightsParameters;
+    "Overlay.setPausedInDebuggerMessage": Overlay.setPausedInDebuggerMessageParameters;
+    "Overlay.setShowDebugBorders": Overlay.setShowDebugBordersParameters;
+    "Overlay.setShowFPSCounter": Overlay.setShowFPSCounterParameters;
+    "Overlay.setShowGridOverlays": Overlay.setShowGridOverlaysParameters;
+    "Overlay.setShowFlexOverlays": Overlay.setShowFlexOverlaysParameters;
+    "Overlay.setShowPaintRects": Overlay.setShowPaintRectsParameters;
+    "Overlay.setShowLayoutShiftRegions": Overlay.setShowLayoutShiftRegionsParameters;
+    "Overlay.setShowScrollBottleneckRects": Overlay.setShowScrollBottleneckRectsParameters;
+    "Overlay.setShowHitTestBorders": Overlay.setShowHitTestBordersParameters;
+    "Overlay.setShowViewportSizeOnResize": Overlay.setShowViewportSizeOnResizeParameters;
+    "Overlay.setShowHinge": Overlay.setShowHingeParameters;
+    "Page.addScriptToEvaluateOnLoad": Page.addScriptToEvaluateOnLoadParameters;
+    "Page.addScriptToEvaluateOnNewDocument": Page.addScriptToEvaluateOnNewDocumentParameters;
+    "Page.bringToFront": Page.bringToFrontParameters;
+    "Page.captureScreenshot": Page.captureScreenshotParameters;
+    "Page.captureSnapshot": Page.captureSnapshotParameters;
+    "Page.clearDeviceMetricsOverride": Page.clearDeviceMetricsOverrideParameters;
+    "Page.clearDeviceOrientationOverride": Page.clearDeviceOrientationOverrideParameters;
+    "Page.clearGeolocationOverride": Page.clearGeolocationOverrideParameters;
+    "Page.createIsolatedWorld": Page.createIsolatedWorldParameters;
+    "Page.deleteCookie": Page.deleteCookieParameters;
+    "Page.disable": Page.disableParameters;
+    "Page.enable": Page.enableParameters;
+    "Page.getAppManifest": Page.getAppManifestParameters;
+    "Page.getInstallabilityErrors": Page.getInstallabilityErrorsParameters;
+    "Page.getManifestIcons": Page.getManifestIconsParameters;
+    "Page.getCookies": Page.getCookiesParameters;
+    "Page.getFrameTree": Page.getFrameTreeParameters;
+    "Page.getLayoutMetrics": Page.getLayoutMetricsParameters;
+    "Page.getNavigationHistory": Page.getNavigationHistoryParameters;
+    "Page.resetNavigationHistory": Page.resetNavigationHistoryParameters;
+    "Page.getResourceContent": Page.getResourceContentParameters;
+    "Page.getResourceTree": Page.getResourceTreeParameters;
+    "Page.handleJavaScriptDialog": Page.handleJavaScriptDialogParameters;
+    "Page.navigate": Page.navigateParameters;
+    "Page.navigateToHistoryEntry": Page.navigateToHistoryEntryParameters;
+    "Page.printToPDF": Page.printToPDFParameters;
+    "Page.reload": Page.reloadParameters;
+    "Page.removeScriptToEvaluateOnLoad": Page.removeScriptToEvaluateOnLoadParameters;
+    "Page.removeScriptToEvaluateOnNewDocument": Page.removeScriptToEvaluateOnNewDocumentParameters;
+    "Page.screencastFrameAck": Page.screencastFrameAckParameters;
+    "Page.searchInResource": Page.searchInResourceParameters;
+    "Page.setAdBlockingEnabled": Page.setAdBlockingEnabledParameters;
+    "Page.setBypassCSP": Page.setBypassCSPParameters;
+    "Page.setDeviceMetricsOverride": Page.setDeviceMetricsOverrideParameters;
+    "Page.setDeviceOrientationOverride": Page.setDeviceOrientationOverrideParameters;
+    "Page.setFontFamilies": Page.setFontFamiliesParameters;
+    "Page.setFontSizes": Page.setFontSizesParameters;
+    "Page.setDocumentContent": Page.setDocumentContentParameters;
+    "Page.setDownloadBehavior": Page.setDownloadBehaviorParameters;
+    "Page.setGeolocationOverride": Page.setGeolocationOverrideParameters;
+    "Page.setLifecycleEventsEnabled": Page.setLifecycleEventsEnabledParameters;
+    "Page.setTouchEmulationEnabled": Page.setTouchEmulationEnabledParameters;
+    "Page.startScreencast": Page.startScreencastParameters;
+    "Page.stopLoading": Page.stopLoadingParameters;
+    "Page.crash": Page.crashParameters;
+    "Page.close": Page.closeParameters;
+    "Page.setWebLifecycleState": Page.setWebLifecycleStateParameters;
+    "Page.stopScreencast": Page.stopScreencastParameters;
+    "Page.setProduceCompilationCache": Page.setProduceCompilationCacheParameters;
+    "Page.addCompilationCache": Page.addCompilationCacheParameters;
+    "Page.clearCompilationCache": Page.clearCompilationCacheParameters;
+    "Page.generateTestReport": Page.generateTestReportParameters;
+    "Page.waitForDebugger": Page.waitForDebuggerParameters;
+    "Page.setInterceptFileChooserDialog": Page.setInterceptFileChooserDialogParameters;
+    "Performance.disable": Performance.disableParameters;
+    "Performance.enable": Performance.enableParameters;
+    "Performance.setTimeDomain": Performance.setTimeDomainParameters;
+    "Performance.getMetrics": Performance.getMetricsParameters;
+    "Security.disable": Security.disableParameters;
+    "Security.enable": Security.enableParameters;
+    "Security.setIgnoreCertificateErrors": Security.setIgnoreCertificateErrorsParameters;
+    "Security.handleCertificateError": Security.handleCertificateErrorParameters;
+    "Security.setOverrideCertificateErrors": Security.setOverrideCertificateErrorsParameters;
+    "ServiceWorker.deliverPushMessage": ServiceWorker.deliverPushMessageParameters;
+    "ServiceWorker.disable": ServiceWorker.disableParameters;
+    "ServiceWorker.dispatchSyncEvent": ServiceWorker.dispatchSyncEventParameters;
+    "ServiceWorker.dispatchPeriodicSyncEvent": ServiceWorker.dispatchPeriodicSyncEventParameters;
+    "ServiceWorker.enable": ServiceWorker.enableParameters;
+    "ServiceWorker.inspectWorker": ServiceWorker.inspectWorkerParameters;
+    "ServiceWorker.setForceUpdateOnPageLoad": ServiceWorker.setForceUpdateOnPageLoadParameters;
+    "ServiceWorker.skipWaiting": ServiceWorker.skipWaitingParameters;
+    "ServiceWorker.startWorker": ServiceWorker.startWorkerParameters;
+    "ServiceWorker.stopAllWorkers": ServiceWorker.stopAllWorkersParameters;
+    "ServiceWorker.stopWorker": ServiceWorker.stopWorkerParameters;
+    "ServiceWorker.unregister": ServiceWorker.unregisterParameters;
+    "ServiceWorker.updateRegistration": ServiceWorker.updateRegistrationParameters;
+    "Storage.clearDataForOrigin": Storage.clearDataForOriginParameters;
+    "Storage.getCookies": Storage.getCookiesParameters;
+    "Storage.setCookies": Storage.setCookiesParameters;
+    "Storage.clearCookies": Storage.clearCookiesParameters;
+    "Storage.getUsageAndQuota": Storage.getUsageAndQuotaParameters;
+    "Storage.overrideQuotaForOrigin": Storage.overrideQuotaForOriginParameters;
+    "Storage.trackCacheStorageForOrigin": Storage.trackCacheStorageForOriginParameters;
+    "Storage.trackIndexedDBForOrigin": Storage.trackIndexedDBForOriginParameters;
+    "Storage.untrackCacheStorageForOrigin": Storage.untrackCacheStorageForOriginParameters;
+    "Storage.untrackIndexedDBForOrigin": Storage.untrackIndexedDBForOriginParameters;
+    "SystemInfo.getInfo": SystemInfo.getInfoParameters;
+    "SystemInfo.getProcessInfo": SystemInfo.getProcessInfoParameters;
+    "Target.activateTarget": Target.activateTargetParameters;
+    "Target.attachToTarget": Target.attachToTargetParameters;
+    "Target.attachToBrowserTarget": Target.attachToBrowserTargetParameters;
+    "Target.closeTarget": Target.closeTargetParameters;
+    "Target.exposeDevToolsProtocol": Target.exposeDevToolsProtocolParameters;
+    "Target.createBrowserContext": Target.createBrowserContextParameters;
+    "Target.getBrowserContexts": Target.getBrowserContextsParameters;
+    "Target.createTarget": Target.createTargetParameters;
+    "Target.detachFromTarget": Target.detachFromTargetParameters;
+    "Target.disposeBrowserContext": Target.disposeBrowserContextParameters;
+    "Target.getTargetInfo": Target.getTargetInfoParameters;
+    "Target.getTargets": Target.getTargetsParameters;
+    "Target.sendMessageToTarget": Target.sendMessageToTargetParameters;
+    "Target.setAutoAttach": Target.setAutoAttachParameters;
+    "Target.setDiscoverTargets": Target.setDiscoverTargetsParameters;
+    "Target.setRemoteLocations": Target.setRemoteLocationsParameters;
+    "Tethering.bind": Tethering.bindParameters;
+    "Tethering.unbind": Tethering.unbindParameters;
+    "Tracing.end": Tracing.endParameters;
+    "Tracing.getCategories": Tracing.getCategoriesParameters;
+    "Tracing.recordClockSyncMarker": Tracing.recordClockSyncMarkerParameters;
+    "Tracing.requestMemoryDump": Tracing.requestMemoryDumpParameters;
+    "Tracing.start": Tracing.startParameters;
+    "Fetch.disable": Fetch.disableParameters;
+    "Fetch.enable": Fetch.enableParameters;
+    "Fetch.failRequest": Fetch.failRequestParameters;
+    "Fetch.fulfillRequest": Fetch.fulfillRequestParameters;
+    "Fetch.continueRequest": Fetch.continueRequestParameters;
+    "Fetch.continueWithAuth": Fetch.continueWithAuthParameters;
+    "Fetch.getResponseBody": Fetch.getResponseBodyParameters;
+    "Fetch.takeResponseBodyAsStream": Fetch.takeResponseBodyAsStreamParameters;
+    "WebAudio.enable": WebAudio.enableParameters;
+    "WebAudio.disable": WebAudio.disableParameters;
+    "WebAudio.getRealtimeData": WebAudio.getRealtimeDataParameters;
+    "WebAuthn.enable": WebAuthn.enableParameters;
+    "WebAuthn.disable": WebAuthn.disableParameters;
+    "WebAuthn.addVirtualAuthenticator": WebAuthn.addVirtualAuthenticatorParameters;
+    "WebAuthn.removeVirtualAuthenticator": WebAuthn.removeVirtualAuthenticatorParameters;
+    "WebAuthn.addCredential": WebAuthn.addCredentialParameters;
+    "WebAuthn.getCredential": WebAuthn.getCredentialParameters;
+    "WebAuthn.getCredentials": WebAuthn.getCredentialsParameters;
+    "WebAuthn.removeCredential": WebAuthn.removeCredentialParameters;
+    "WebAuthn.clearCredentials": WebAuthn.clearCredentialsParameters;
+    "WebAuthn.setUserVerified": WebAuthn.setUserVerifiedParameters;
+    "WebAuthn.setAutomaticPresenceSimulation": WebAuthn.setAutomaticPresenceSimulationParameters;
+    "Media.enable": Media.enableParameters;
+    "Media.disable": Media.disableParameters;
+    "Console.clearMessages": Console.clearMessagesParameters;
+    "Console.disable": Console.disableParameters;
+    "Console.enable": Console.enableParameters;
+    "Debugger.continueToLocation": Debugger.continueToLocationParameters;
+    "Debugger.disable": Debugger.disableParameters;
+    "Debugger.enable": Debugger.enableParameters;
+    "Debugger.evaluateOnCallFrame": Debugger.evaluateOnCallFrameParameters;
+    "Debugger.executeWasmEvaluator": Debugger.executeWasmEvaluatorParameters;
+    "Debugger.getPossibleBreakpoints": Debugger.getPossibleBreakpointsParameters;
+    "Debugger.getScriptSource": Debugger.getScriptSourceParameters;
+    "Debugger.getWasmBytecode": Debugger.getWasmBytecodeParameters;
+    "Debugger.getStackTrace": Debugger.getStackTraceParameters;
+    "Debugger.pause": Debugger.pauseParameters;
+    "Debugger.pauseOnAsyncCall": Debugger.pauseOnAsyncCallParameters;
+    "Debugger.removeBreakpoint": Debugger.removeBreakpointParameters;
+    "Debugger.restartFrame": Debugger.restartFrameParameters;
+    "Debugger.resume": Debugger.resumeParameters;
+    "Debugger.searchInContent": Debugger.searchInContentParameters;
+    "Debugger.setAsyncCallStackDepth": Debugger.setAsyncCallStackDepthParameters;
+    "Debugger.setBlackboxPatterns": Debugger.setBlackboxPatternsParameters;
+    "Debugger.setBlackboxedRanges": Debugger.setBlackboxedRangesParameters;
+    "Debugger.setBreakpoint": Debugger.setBreakpointParameters;
+    "Debugger.setInstrumentationBreakpoint": Debugger.setInstrumentationBreakpointParameters;
+    "Debugger.setBreakpointByUrl": Debugger.setBreakpointByUrlParameters;
+    "Debugger.setBreakpointOnFunctionCall": Debugger.setBreakpointOnFunctionCallParameters;
+    "Debugger.setBreakpointsActive": Debugger.setBreakpointsActiveParameters;
+    "Debugger.setPauseOnExceptions": Debugger.setPauseOnExceptionsParameters;
+    "Debugger.setReturnValue": Debugger.setReturnValueParameters;
+    "Debugger.setScriptSource": Debugger.setScriptSourceParameters;
+    "Debugger.setSkipAllPauses": Debugger.setSkipAllPausesParameters;
+    "Debugger.setVariableValue": Debugger.setVariableValueParameters;
+    "Debugger.stepInto": Debugger.stepIntoParameters;
+    "Debugger.stepOut": Debugger.stepOutParameters;
+    "Debugger.stepOver": Debugger.stepOverParameters;
+    "HeapProfiler.addInspectedHeapObject": HeapProfiler.addInspectedHeapObjectParameters;
+    "HeapProfiler.collectGarbage": HeapProfiler.collectGarbageParameters;
+    "HeapProfiler.disable": HeapProfiler.disableParameters;
+    "HeapProfiler.enable": HeapProfiler.enableParameters;
+    "HeapProfiler.getHeapObjectId": HeapProfiler.getHeapObjectIdParameters;
+    "HeapProfiler.getObjectByHeapObjectId": HeapProfiler.getObjectByHeapObjectIdParameters;
+    "HeapProfiler.getSamplingProfile": HeapProfiler.getSamplingProfileParameters;
+    "HeapProfiler.startSampling": HeapProfiler.startSamplingParameters;
+    "HeapProfiler.startTrackingHeapObjects": HeapProfiler.startTrackingHeapObjectsParameters;
+    "HeapProfiler.stopSampling": HeapProfiler.stopSamplingParameters;
+    "HeapProfiler.stopTrackingHeapObjects": HeapProfiler.stopTrackingHeapObjectsParameters;
+    "HeapProfiler.takeHeapSnapshot": HeapProfiler.takeHeapSnapshotParameters;
+    "Profiler.disable": Profiler.disableParameters;
+    "Profiler.enable": Profiler.enableParameters;
+    "Profiler.getBestEffortCoverage": Profiler.getBestEffortCoverageParameters;
+    "Profiler.setSamplingInterval": Profiler.setSamplingIntervalParameters;
+    "Profiler.start": Profiler.startParameters;
+    "Profiler.startPreciseCoverage": Profiler.startPreciseCoverageParameters;
+    "Profiler.startTypeProfile": Profiler.startTypeProfileParameters;
+    "Profiler.stop": Profiler.stopParameters;
+    "Profiler.stopPreciseCoverage": Profiler.stopPreciseCoverageParameters;
+    "Profiler.stopTypeProfile": Profiler.stopTypeProfileParameters;
+    "Profiler.takePreciseCoverage": Profiler.takePreciseCoverageParameters;
+    "Profiler.takeTypeProfile": Profiler.takeTypeProfileParameters;
+    "Profiler.enableCounters": Profiler.enableCountersParameters;
+    "Profiler.disableCounters": Profiler.disableCountersParameters;
+    "Profiler.getCounters": Profiler.getCountersParameters;
+    "Profiler.enableRuntimeCallStats": Profiler.enableRuntimeCallStatsParameters;
+    "Profiler.disableRuntimeCallStats": Profiler.disableRuntimeCallStatsParameters;
+    "Profiler.getRuntimeCallStats": Profiler.getRuntimeCallStatsParameters;
+    "Runtime.awaitPromise": Runtime.awaitPromiseParameters;
+    "Runtime.callFunctionOn": Runtime.callFunctionOnParameters;
+    "Runtime.compileScript": Runtime.compileScriptParameters;
+    "Runtime.disable": Runtime.disableParameters;
+    "Runtime.discardConsoleEntries": Runtime.discardConsoleEntriesParameters;
+    "Runtime.enable": Runtime.enableParameters;
+    "Runtime.evaluate": Runtime.evaluateParameters;
+    "Runtime.getIsolateId": Runtime.getIsolateIdParameters;
+    "Runtime.getHeapUsage": Runtime.getHeapUsageParameters;
+    "Runtime.getProperties": Runtime.getPropertiesParameters;
+    "Runtime.globalLexicalScopeNames": Runtime.globalLexicalScopeNamesParameters;
+    "Runtime.queryObjects": Runtime.queryObjectsParameters;
+    "Runtime.releaseObject": Runtime.releaseObjectParameters;
+    "Runtime.releaseObjectGroup": Runtime.releaseObjectGroupParameters;
+    "Runtime.runIfWaitingForDebugger": Runtime.runIfWaitingForDebuggerParameters;
+    "Runtime.runScript": Runtime.runScriptParameters;
+    "Runtime.setAsyncCallStackDepth": Runtime.setAsyncCallStackDepthParameters;
+    "Runtime.setCustomObjectFormatterEnabled": Runtime.setCustomObjectFormatterEnabledParameters;
+    "Runtime.setMaxCallStackSizeToCapture": Runtime.setMaxCallStackSizeToCaptureParameters;
+    "Runtime.terminateExecution": Runtime.terminateExecutionParameters;
+    "Runtime.addBinding": Runtime.addBindingParameters;
+    "Runtime.removeBinding": Runtime.removeBindingParameters;
+    "Schema.getDomains": Schema.getDomainsParameters;
+  }
+  export interface CommandReturnValues {
+    "Accessibility.disable": Accessibility.disableReturnValue;
+    "Accessibility.enable": Accessibility.enableReturnValue;
+    "Accessibility.getPartialAXTree": Accessibility.getPartialAXTreeReturnValue;
+    "Accessibility.getFullAXTree": Accessibility.getFullAXTreeReturnValue;
+    "Accessibility.getChildAXNodes": Accessibility.getChildAXNodesReturnValue;
+    "Accessibility.queryAXTree": Accessibility.queryAXTreeReturnValue;
+    "Animation.disable": Animation.disableReturnValue;
+    "Animation.enable": Animation.enableReturnValue;
+    "Animation.getCurrentTime": Animation.getCurrentTimeReturnValue;
+    "Animation.getPlaybackRate": Animation.getPlaybackRateReturnValue;
+    "Animation.releaseAnimations": Animation.releaseAnimationsReturnValue;
+    "Animation.resolveAnimation": Animation.resolveAnimationReturnValue;
+    "Animation.seekAnimations": Animation.seekAnimationsReturnValue;
+    "Animation.setPaused": Animation.setPausedReturnValue;
+    "Animation.setPlaybackRate": Animation.setPlaybackRateReturnValue;
+    "Animation.setTiming": Animation.setTimingReturnValue;
+    "ApplicationCache.enable": ApplicationCache.enableReturnValue;
+    "ApplicationCache.getApplicationCacheForFrame": ApplicationCache.getApplicationCacheForFrameReturnValue;
+    "ApplicationCache.getFramesWithManifests": ApplicationCache.getFramesWithManifestsReturnValue;
+    "ApplicationCache.getManifestForFrame": ApplicationCache.getManifestForFrameReturnValue;
+    "Audits.getEncodedResponse": Audits.getEncodedResponseReturnValue;
+    "Audits.disable": Audits.disableReturnValue;
+    "Audits.enable": Audits.enableReturnValue;
+    "BackgroundService.startObserving": BackgroundService.startObservingReturnValue;
+    "BackgroundService.stopObserving": BackgroundService.stopObservingReturnValue;
+    "BackgroundService.setRecording": BackgroundService.setRecordingReturnValue;
+    "BackgroundService.clearEvents": BackgroundService.clearEventsReturnValue;
+    "Browser.setPermission": Browser.setPermissionReturnValue;
+    "Browser.grantPermissions": Browser.grantPermissionsReturnValue;
+    "Browser.resetPermissions": Browser.resetPermissionsReturnValue;
+    "Browser.setDownloadBehavior": Browser.setDownloadBehaviorReturnValue;
+    "Browser.close": Browser.closeReturnValue;
+    "Browser.crash": Browser.crashReturnValue;
+    "Browser.crashGpuProcess": Browser.crashGpuProcessReturnValue;
+    "Browser.getVersion": Browser.getVersionReturnValue;
+    "Browser.getBrowserCommandLine": Browser.getBrowserCommandLineReturnValue;
+    "Browser.getHistograms": Browser.getHistogramsReturnValue;
+    "Browser.getHistogram": Browser.getHistogramReturnValue;
+    "Browser.getWindowBounds": Browser.getWindowBoundsReturnValue;
+    "Browser.getWindowForTarget": Browser.getWindowForTargetReturnValue;
+    "Browser.setWindowBounds": Browser.setWindowBoundsReturnValue;
+    "Browser.setDockTile": Browser.setDockTileReturnValue;
+    "Browser.executeBrowserCommand": Browser.executeBrowserCommandReturnValue;
+    "CSS.addRule": CSS.addRuleReturnValue;
+    "CSS.collectClassNames": CSS.collectClassNamesReturnValue;
+    "CSS.createStyleSheet": CSS.createStyleSheetReturnValue;
+    "CSS.disable": CSS.disableReturnValue;
+    "CSS.enable": CSS.enableReturnValue;
+    "CSS.forcePseudoState": CSS.forcePseudoStateReturnValue;
+    "CSS.getBackgroundColors": CSS.getBackgroundColorsReturnValue;
+    "CSS.getComputedStyleForNode": CSS.getComputedStyleForNodeReturnValue;
+    "CSS.getInlineStylesForNode": CSS.getInlineStylesForNodeReturnValue;
+    "CSS.getMatchedStylesForNode": CSS.getMatchedStylesForNodeReturnValue;
+    "CSS.getMediaQueries": CSS.getMediaQueriesReturnValue;
+    "CSS.getPlatformFontsForNode": CSS.getPlatformFontsForNodeReturnValue;
+    "CSS.getStyleSheetText": CSS.getStyleSheetTextReturnValue;
+    "CSS.trackComputedStyleUpdates": CSS.trackComputedStyleUpdatesReturnValue;
+    "CSS.takeComputedStyleUpdates": CSS.takeComputedStyleUpdatesReturnValue;
+    "CSS.setEffectivePropertyValueForNode": CSS.setEffectivePropertyValueForNodeReturnValue;
+    "CSS.setKeyframeKey": CSS.setKeyframeKeyReturnValue;
+    "CSS.setMediaText": CSS.setMediaTextReturnValue;
+    "CSS.setRuleSelector": CSS.setRuleSelectorReturnValue;
+    "CSS.setStyleSheetText": CSS.setStyleSheetTextReturnValue;
+    "CSS.setStyleTexts": CSS.setStyleTextsReturnValue;
+    "CSS.startRuleUsageTracking": CSS.startRuleUsageTrackingReturnValue;
+    "CSS.stopRuleUsageTracking": CSS.stopRuleUsageTrackingReturnValue;
+    "CSS.takeCoverageDelta": CSS.takeCoverageDeltaReturnValue;
+    "CSS.setLocalFontsEnabled": CSS.setLocalFontsEnabledReturnValue;
+    "CacheStorage.deleteCache": CacheStorage.deleteCacheReturnValue;
+    "CacheStorage.deleteEntry": CacheStorage.deleteEntryReturnValue;
+    "CacheStorage.requestCacheNames": CacheStorage.requestCacheNamesReturnValue;
+    "CacheStorage.requestCachedResponse": CacheStorage.requestCachedResponseReturnValue;
+    "CacheStorage.requestEntries": CacheStorage.requestEntriesReturnValue;
+    "Cast.enable": Cast.enableReturnValue;
+    "Cast.disable": Cast.disableReturnValue;
+    "Cast.setSinkToUse": Cast.setSinkToUseReturnValue;
+    "Cast.startTabMirroring": Cast.startTabMirroringReturnValue;
+    "Cast.stopCasting": Cast.stopCastingReturnValue;
+    "DOM.collectClassNamesFromSubtree": DOM.collectClassNamesFromSubtreeReturnValue;
+    "DOM.copyTo": DOM.copyToReturnValue;
+    "DOM.describeNode": DOM.describeNodeReturnValue;
+    "DOM.scrollIntoViewIfNeeded": DOM.scrollIntoViewIfNeededReturnValue;
+    "DOM.disable": DOM.disableReturnValue;
+    "DOM.discardSearchResults": DOM.discardSearchResultsReturnValue;
+    "DOM.enable": DOM.enableReturnValue;
+    "DOM.focus": DOM.focusReturnValue;
+    "DOM.getAttributes": DOM.getAttributesReturnValue;
+    "DOM.getBoxModel": DOM.getBoxModelReturnValue;
+    "DOM.getContentQuads": DOM.getContentQuadsReturnValue;
+    "DOM.getDocument": DOM.getDocumentReturnValue;
+    "DOM.getFlattenedDocument": DOM.getFlattenedDocumentReturnValue;
+    "DOM.getNodesForSubtreeByStyle": DOM.getNodesForSubtreeByStyleReturnValue;
+    "DOM.getNodeForLocation": DOM.getNodeForLocationReturnValue;
+    "DOM.getOuterHTML": DOM.getOuterHTMLReturnValue;
+    "DOM.getRelayoutBoundary": DOM.getRelayoutBoundaryReturnValue;
+    "DOM.getSearchResults": DOM.getSearchResultsReturnValue;
+    "DOM.hideHighlight": DOM.hideHighlightReturnValue;
+    "DOM.highlightNode": DOM.highlightNodeReturnValue;
+    "DOM.highlightRect": DOM.highlightRectReturnValue;
+    "DOM.markUndoableState": DOM.markUndoableStateReturnValue;
+    "DOM.moveTo": DOM.moveToReturnValue;
+    "DOM.performSearch": DOM.performSearchReturnValue;
+    "DOM.pushNodeByPathToFrontend": DOM.pushNodeByPathToFrontendReturnValue;
+    "DOM.pushNodesByBackendIdsToFrontend": DOM.pushNodesByBackendIdsToFrontendReturnValue;
+    "DOM.querySelector": DOM.querySelectorReturnValue;
+    "DOM.querySelectorAll": DOM.querySelectorAllReturnValue;
+    "DOM.redo": DOM.redoReturnValue;
+    "DOM.removeAttribute": DOM.removeAttributeReturnValue;
+    "DOM.removeNode": DOM.removeNodeReturnValue;
+    "DOM.requestChildNodes": DOM.requestChildNodesReturnValue;
+    "DOM.requestNode": DOM.requestNodeReturnValue;
+    "DOM.resolveNode": DOM.resolveNodeReturnValue;
+    "DOM.setAttributeValue": DOM.setAttributeValueReturnValue;
+    "DOM.setAttributesAsText": DOM.setAttributesAsTextReturnValue;
+    "DOM.setFileInputFiles": DOM.setFileInputFilesReturnValue;
+    "DOM.setNodeStackTracesEnabled": DOM.setNodeStackTracesEnabledReturnValue;
+    "DOM.getNodeStackTraces": DOM.getNodeStackTracesReturnValue;
+    "DOM.getFileInfo": DOM.getFileInfoReturnValue;
+    "DOM.setInspectedNode": DOM.setInspectedNodeReturnValue;
+    "DOM.setNodeName": DOM.setNodeNameReturnValue;
+    "DOM.setNodeValue": DOM.setNodeValueReturnValue;
+    "DOM.setOuterHTML": DOM.setOuterHTMLReturnValue;
+    "DOM.undo": DOM.undoReturnValue;
+    "DOM.getFrameOwner": DOM.getFrameOwnerReturnValue;
+    "DOMDebugger.getEventListeners": DOMDebugger.getEventListenersReturnValue;
+    "DOMDebugger.removeDOMBreakpoint": DOMDebugger.removeDOMBreakpointReturnValue;
+    "DOMDebugger.removeEventListenerBreakpoint": DOMDebugger.removeEventListenerBreakpointReturnValue;
+    "DOMDebugger.removeInstrumentationBreakpoint": DOMDebugger.removeInstrumentationBreakpointReturnValue;
+    "DOMDebugger.removeXHRBreakpoint": DOMDebugger.removeXHRBreakpointReturnValue;
+    "DOMDebugger.setBreakOnCSPViolation": DOMDebugger.setBreakOnCSPViolationReturnValue;
+    "DOMDebugger.setDOMBreakpoint": DOMDebugger.setDOMBreakpointReturnValue;
+    "DOMDebugger.setEventListenerBreakpoint": DOMDebugger.setEventListenerBreakpointReturnValue;
+    "DOMDebugger.setInstrumentationBreakpoint": DOMDebugger.setInstrumentationBreakpointReturnValue;
+    "DOMDebugger.setXHRBreakpoint": DOMDebugger.setXHRBreakpointReturnValue;
+    "DOMSnapshot.disable": DOMSnapshot.disableReturnValue;
+    "DOMSnapshot.enable": DOMSnapshot.enableReturnValue;
+    "DOMSnapshot.getSnapshot": DOMSnapshot.getSnapshotReturnValue;
+    "DOMSnapshot.captureSnapshot": DOMSnapshot.captureSnapshotReturnValue;
+    "DOMStorage.clear": DOMStorage.clearReturnValue;
+    "DOMStorage.disable": DOMStorage.disableReturnValue;
+    "DOMStorage.enable": DOMStorage.enableReturnValue;
+    "DOMStorage.getDOMStorageItems": DOMStorage.getDOMStorageItemsReturnValue;
+    "DOMStorage.removeDOMStorageItem": DOMStorage.removeDOMStorageItemReturnValue;
+    "DOMStorage.setDOMStorageItem": DOMStorage.setDOMStorageItemReturnValue;
+    "Database.disable": Database.disableReturnValue;
+    "Database.enable": Database.enableReturnValue;
+    "Database.executeSQL": Database.executeSQLReturnValue;
+    "Database.getDatabaseTableNames": Database.getDatabaseTableNamesReturnValue;
+    "DeviceOrientation.clearDeviceOrientationOverride": DeviceOrientation.clearDeviceOrientationOverrideReturnValue;
+    "DeviceOrientation.setDeviceOrientationOverride": DeviceOrientation.setDeviceOrientationOverrideReturnValue;
+    "Emulation.canEmulate": Emulation.canEmulateReturnValue;
+    "Emulation.clearDeviceMetricsOverride": Emulation.clearDeviceMetricsOverrideReturnValue;
+    "Emulation.clearGeolocationOverride": Emulation.clearGeolocationOverrideReturnValue;
+    "Emulation.resetPageScaleFactor": Emulation.resetPageScaleFactorReturnValue;
+    "Emulation.setFocusEmulationEnabled": Emulation.setFocusEmulationEnabledReturnValue;
+    "Emulation.setCPUThrottlingRate": Emulation.setCPUThrottlingRateReturnValue;
+    "Emulation.setDefaultBackgroundColorOverride": Emulation.setDefaultBackgroundColorOverrideReturnValue;
+    "Emulation.setDeviceMetricsOverride": Emulation.setDeviceMetricsOverrideReturnValue;
+    "Emulation.setScrollbarsHidden": Emulation.setScrollbarsHiddenReturnValue;
+    "Emulation.setDocumentCookieDisabled": Emulation.setDocumentCookieDisabledReturnValue;
+    "Emulation.setEmitTouchEventsForMouse": Emulation.setEmitTouchEventsForMouseReturnValue;
+    "Emulation.setEmulatedMedia": Emulation.setEmulatedMediaReturnValue;
+    "Emulation.setEmulatedVisionDeficiency": Emulation.setEmulatedVisionDeficiencyReturnValue;
+    "Emulation.setGeolocationOverride": Emulation.setGeolocationOverrideReturnValue;
+    "Emulation.setIdleOverride": Emulation.setIdleOverrideReturnValue;
+    "Emulation.clearIdleOverride": Emulation.clearIdleOverrideReturnValue;
+    "Emulation.setNavigatorOverrides": Emulation.setNavigatorOverridesReturnValue;
+    "Emulation.setPageScaleFactor": Emulation.setPageScaleFactorReturnValue;
+    "Emulation.setScriptExecutionDisabled": Emulation.setScriptExecutionDisabledReturnValue;
+    "Emulation.setTouchEmulationEnabled": Emulation.setTouchEmulationEnabledReturnValue;
+    "Emulation.setVirtualTimePolicy": Emulation.setVirtualTimePolicyReturnValue;
+    "Emulation.setLocaleOverride": Emulation.setLocaleOverrideReturnValue;
+    "Emulation.setTimezoneOverride": Emulation.setTimezoneOverrideReturnValue;
+    "Emulation.setVisibleSize": Emulation.setVisibleSizeReturnValue;
+    "Emulation.setDisabledImageTypes": Emulation.setDisabledImageTypesReturnValue;
+    "Emulation.setUserAgentOverride": Emulation.setUserAgentOverrideReturnValue;
+    "HeadlessExperimental.beginFrame": HeadlessExperimental.beginFrameReturnValue;
+    "HeadlessExperimental.disable": HeadlessExperimental.disableReturnValue;
+    "HeadlessExperimental.enable": HeadlessExperimental.enableReturnValue;
+    "IO.close": IO.closeReturnValue;
+    "IO.read": IO.readReturnValue;
+    "IO.resolveBlob": IO.resolveBlobReturnValue;
+    "IndexedDB.clearObjectStore": IndexedDB.clearObjectStoreReturnValue;
+    "IndexedDB.deleteDatabase": IndexedDB.deleteDatabaseReturnValue;
+    "IndexedDB.deleteObjectStoreEntries": IndexedDB.deleteObjectStoreEntriesReturnValue;
+    "IndexedDB.disable": IndexedDB.disableReturnValue;
+    "IndexedDB.enable": IndexedDB.enableReturnValue;
+    "IndexedDB.requestData": IndexedDB.requestDataReturnValue;
+    "IndexedDB.getMetadata": IndexedDB.getMetadataReturnValue;
+    "IndexedDB.requestDatabase": IndexedDB.requestDatabaseReturnValue;
+    "IndexedDB.requestDatabaseNames": IndexedDB.requestDatabaseNamesReturnValue;
+    "Input.dispatchKeyEvent": Input.dispatchKeyEventReturnValue;
+    "Input.insertText": Input.insertTextReturnValue;
+    "Input.dispatchMouseEvent": Input.dispatchMouseEventReturnValue;
+    "Input.dispatchTouchEvent": Input.dispatchTouchEventReturnValue;
+    "Input.emulateTouchFromMouseEvent": Input.emulateTouchFromMouseEventReturnValue;
+    "Input.setIgnoreInputEvents": Input.setIgnoreInputEventsReturnValue;
+    "Input.synthesizePinchGesture": Input.synthesizePinchGestureReturnValue;
+    "Input.synthesizeScrollGesture": Input.synthesizeScrollGestureReturnValue;
+    "Input.synthesizeTapGesture": Input.synthesizeTapGestureReturnValue;
+    "Inspector.disable": Inspector.disableReturnValue;
+    "Inspector.enable": Inspector.enableReturnValue;
+    "LayerTree.compositingReasons": LayerTree.compositingReasonsReturnValue;
+    "LayerTree.disable": LayerTree.disableReturnValue;
+    "LayerTree.enable": LayerTree.enableReturnValue;
+    "LayerTree.loadSnapshot": LayerTree.loadSnapshotReturnValue;
+    "LayerTree.makeSnapshot": LayerTree.makeSnapshotReturnValue;
+    "LayerTree.profileSnapshot": LayerTree.profileSnapshotReturnValue;
+    "LayerTree.releaseSnapshot": LayerTree.releaseSnapshotReturnValue;
+    "LayerTree.replaySnapshot": LayerTree.replaySnapshotReturnValue;
+    "LayerTree.snapshotCommandLog": LayerTree.snapshotCommandLogReturnValue;
+    "Log.clear": Log.clearReturnValue;
+    "Log.disable": Log.disableReturnValue;
+    "Log.enable": Log.enableReturnValue;
+    "Log.startViolationsReport": Log.startViolationsReportReturnValue;
+    "Log.stopViolationsReport": Log.stopViolationsReportReturnValue;
+    "Memory.getDOMCounters": Memory.getDOMCountersReturnValue;
+    "Memory.prepareForLeakDetection": Memory.prepareForLeakDetectionReturnValue;
+    "Memory.forciblyPurgeJavaScriptMemory": Memory.forciblyPurgeJavaScriptMemoryReturnValue;
+    "Memory.setPressureNotificationsSuppressed": Memory.setPressureNotificationsSuppressedReturnValue;
+    "Memory.simulatePressureNotification": Memory.simulatePressureNotificationReturnValue;
+    "Memory.startSampling": Memory.startSamplingReturnValue;
+    "Memory.stopSampling": Memory.stopSamplingReturnValue;
+    "Memory.getAllTimeSamplingProfile": Memory.getAllTimeSamplingProfileReturnValue;
+    "Memory.getBrowserSamplingProfile": Memory.getBrowserSamplingProfileReturnValue;
+    "Memory.getSamplingProfile": Memory.getSamplingProfileReturnValue;
+    "Network.canClearBrowserCache": Network.canClearBrowserCacheReturnValue;
+    "Network.canClearBrowserCookies": Network.canClearBrowserCookiesReturnValue;
+    "Network.canEmulateNetworkConditions": Network.canEmulateNetworkConditionsReturnValue;
+    "Network.clearBrowserCache": Network.clearBrowserCacheReturnValue;
+    "Network.clearBrowserCookies": Network.clearBrowserCookiesReturnValue;
+    "Network.continueInterceptedRequest": Network.continueInterceptedRequestReturnValue;
+    "Network.deleteCookies": Network.deleteCookiesReturnValue;
+    "Network.disable": Network.disableReturnValue;
+    "Network.emulateNetworkConditions": Network.emulateNetworkConditionsReturnValue;
+    "Network.enable": Network.enableReturnValue;
+    "Network.getAllCookies": Network.getAllCookiesReturnValue;
+    "Network.getCertificate": Network.getCertificateReturnValue;
+    "Network.getCookies": Network.getCookiesReturnValue;
+    "Network.getResponseBody": Network.getResponseBodyReturnValue;
+    "Network.getRequestPostData": Network.getRequestPostDataReturnValue;
+    "Network.getResponseBodyForInterception": Network.getResponseBodyForInterceptionReturnValue;
+    "Network.takeResponseBodyForInterceptionAsStream": Network.takeResponseBodyForInterceptionAsStreamReturnValue;
+    "Network.replayXHR": Network.replayXHRReturnValue;
+    "Network.searchInResponseBody": Network.searchInResponseBodyReturnValue;
+    "Network.setBlockedURLs": Network.setBlockedURLsReturnValue;
+    "Network.setBypassServiceWorker": Network.setBypassServiceWorkerReturnValue;
+    "Network.setCacheDisabled": Network.setCacheDisabledReturnValue;
+    "Network.setCookie": Network.setCookieReturnValue;
+    "Network.setCookies": Network.setCookiesReturnValue;
+    "Network.setDataSizeLimitsForTest": Network.setDataSizeLimitsForTestReturnValue;
+    "Network.setExtraHTTPHeaders": Network.setExtraHTTPHeadersReturnValue;
+    "Network.setAttachDebugStack": Network.setAttachDebugStackReturnValue;
+    "Network.setRequestInterception": Network.setRequestInterceptionReturnValue;
+    "Network.setUserAgentOverride": Network.setUserAgentOverrideReturnValue;
+    "Network.getSecurityIsolationStatus": Network.getSecurityIsolationStatusReturnValue;
+    "Network.loadNetworkResource": Network.loadNetworkResourceReturnValue;
+    "Overlay.disable": Overlay.disableReturnValue;
+    "Overlay.enable": Overlay.enableReturnValue;
+    "Overlay.getHighlightObjectForTest": Overlay.getHighlightObjectForTestReturnValue;
+    "Overlay.getGridHighlightObjectsForTest": Overlay.getGridHighlightObjectsForTestReturnValue;
+    "Overlay.getSourceOrderHighlightObjectForTest": Overlay.getSourceOrderHighlightObjectForTestReturnValue;
+    "Overlay.hideHighlight": Overlay.hideHighlightReturnValue;
+    "Overlay.highlightFrame": Overlay.highlightFrameReturnValue;
+    "Overlay.highlightNode": Overlay.highlightNodeReturnValue;
+    "Overlay.highlightQuad": Overlay.highlightQuadReturnValue;
+    "Overlay.highlightRect": Overlay.highlightRectReturnValue;
+    "Overlay.highlightSourceOrder": Overlay.highlightSourceOrderReturnValue;
+    "Overlay.setInspectMode": Overlay.setInspectModeReturnValue;
+    "Overlay.setShowAdHighlights": Overlay.setShowAdHighlightsReturnValue;
+    "Overlay.setPausedInDebuggerMessage": Overlay.setPausedInDebuggerMessageReturnValue;
+    "Overlay.setShowDebugBorders": Overlay.setShowDebugBordersReturnValue;
+    "Overlay.setShowFPSCounter": Overlay.setShowFPSCounterReturnValue;
+    "Overlay.setShowGridOverlays": Overlay.setShowGridOverlaysReturnValue;
+    "Overlay.setShowFlexOverlays": Overlay.setShowFlexOverlaysReturnValue;
+    "Overlay.setShowPaintRects": Overlay.setShowPaintRectsReturnValue;
+    "Overlay.setShowLayoutShiftRegions": Overlay.setShowLayoutShiftRegionsReturnValue;
+    "Overlay.setShowScrollBottleneckRects": Overlay.setShowScrollBottleneckRectsReturnValue;
+    "Overlay.setShowHitTestBorders": Overlay.setShowHitTestBordersReturnValue;
+    "Overlay.setShowViewportSizeOnResize": Overlay.setShowViewportSizeOnResizeReturnValue;
+    "Overlay.setShowHinge": Overlay.setShowHingeReturnValue;
+    "Page.addScriptToEvaluateOnLoad": Page.addScriptToEvaluateOnLoadReturnValue;
+    "Page.addScriptToEvaluateOnNewDocument": Page.addScriptToEvaluateOnNewDocumentReturnValue;
+    "Page.bringToFront": Page.bringToFrontReturnValue;
+    "Page.captureScreenshot": Page.captureScreenshotReturnValue;
+    "Page.captureSnapshot": Page.captureSnapshotReturnValue;
+    "Page.clearDeviceMetricsOverride": Page.clearDeviceMetricsOverrideReturnValue;
+    "Page.clearDeviceOrientationOverride": Page.clearDeviceOrientationOverrideReturnValue;
+    "Page.clearGeolocationOverride": Page.clearGeolocationOverrideReturnValue;
+    "Page.createIsolatedWorld": Page.createIsolatedWorldReturnValue;
+    "Page.deleteCookie": Page.deleteCookieReturnValue;
+    "Page.disable": Page.disableReturnValue;
+    "Page.enable": Page.enableReturnValue;
+    "Page.getAppManifest": Page.getAppManifestReturnValue;
+    "Page.getInstallabilityErrors": Page.getInstallabilityErrorsReturnValue;
+    "Page.getManifestIcons": Page.getManifestIconsReturnValue;
+    "Page.getCookies": Page.getCookiesReturnValue;
+    "Page.getFrameTree": Page.getFrameTreeReturnValue;
+    "Page.getLayoutMetrics": Page.getLayoutMetricsReturnValue;
+    "Page.getNavigationHistory": Page.getNavigationHistoryReturnValue;
+    "Page.resetNavigationHistory": Page.resetNavigationHistoryReturnValue;
+    "Page.getResourceContent": Page.getResourceContentReturnValue;
+    "Page.getResourceTree": Page.getResourceTreeReturnValue;
+    "Page.handleJavaScriptDialog": Page.handleJavaScriptDialogReturnValue;
+    "Page.navigate": Page.navigateReturnValue;
+    "Page.navigateToHistoryEntry": Page.navigateToHistoryEntryReturnValue;
+    "Page.printToPDF": Page.printToPDFReturnValue;
+    "Page.reload": Page.reloadReturnValue;
+    "Page.removeScriptToEvaluateOnLoad": Page.removeScriptToEvaluateOnLoadReturnValue;
+    "Page.removeScriptToEvaluateOnNewDocument": Page.removeScriptToEvaluateOnNewDocumentReturnValue;
+    "Page.screencastFrameAck": Page.screencastFrameAckReturnValue;
+    "Page.searchInResource": Page.searchInResourceReturnValue;
+    "Page.setAdBlockingEnabled": Page.setAdBlockingEnabledReturnValue;
+    "Page.setBypassCSP": Page.setBypassCSPReturnValue;
+    "Page.setDeviceMetricsOverride": Page.setDeviceMetricsOverrideReturnValue;
+    "Page.setDeviceOrientationOverride": Page.setDeviceOrientationOverrideReturnValue;
+    "Page.setFontFamilies": Page.setFontFamiliesReturnValue;
+    "Page.setFontSizes": Page.setFontSizesReturnValue;
+    "Page.setDocumentContent": Page.setDocumentContentReturnValue;
+    "Page.setDownloadBehavior": Page.setDownloadBehaviorReturnValue;
+    "Page.setGeolocationOverride": Page.setGeolocationOverrideReturnValue;
+    "Page.setLifecycleEventsEnabled": Page.setLifecycleEventsEnabledReturnValue;
+    "Page.setTouchEmulationEnabled": Page.setTouchEmulationEnabledReturnValue;
+    "Page.startScreencast": Page.startScreencastReturnValue;
+    "Page.stopLoading": Page.stopLoadingReturnValue;
+    "Page.crash": Page.crashReturnValue;
+    "Page.close": Page.closeReturnValue;
+    "Page.setWebLifecycleState": Page.setWebLifecycleStateReturnValue;
+    "Page.stopScreencast": Page.stopScreencastReturnValue;
+    "Page.setProduceCompilationCache": Page.setProduceCompilationCacheReturnValue;
+    "Page.addCompilationCache": Page.addCompilationCacheReturnValue;
+    "Page.clearCompilationCache": Page.clearCompilationCacheReturnValue;
+    "Page.generateTestReport": Page.generateTestReportReturnValue;
+    "Page.waitForDebugger": Page.waitForDebuggerReturnValue;
+    "Page.setInterceptFileChooserDialog": Page.setInterceptFileChooserDialogReturnValue;
+    "Performance.disable": Performance.disableReturnValue;
+    "Performance.enable": Performance.enableReturnValue;
+    "Performance.setTimeDomain": Performance.setTimeDomainReturnValue;
+    "Performance.getMetrics": Performance.getMetricsReturnValue;
+    "Security.disable": Security.disableReturnValue;
+    "Security.enable": Security.enableReturnValue;
+    "Security.setIgnoreCertificateErrors": Security.setIgnoreCertificateErrorsReturnValue;
+    "Security.handleCertificateError": Security.handleCertificateErrorReturnValue;
+    "Security.setOverrideCertificateErrors": Security.setOverrideCertificateErrorsReturnValue;
+    "ServiceWorker.deliverPushMessage": ServiceWorker.deliverPushMessageReturnValue;
+    "ServiceWorker.disable": ServiceWorker.disableReturnValue;
+    "ServiceWorker.dispatchSyncEvent": ServiceWorker.dispatchSyncEventReturnValue;
+    "ServiceWorker.dispatchPeriodicSyncEvent": ServiceWorker.dispatchPeriodicSyncEventReturnValue;
+    "ServiceWorker.enable": ServiceWorker.enableReturnValue;
+    "ServiceWorker.inspectWorker": ServiceWorker.inspectWorkerReturnValue;
+    "ServiceWorker.setForceUpdateOnPageLoad": ServiceWorker.setForceUpdateOnPageLoadReturnValue;
+    "ServiceWorker.skipWaiting": ServiceWorker.skipWaitingReturnValue;
+    "ServiceWorker.startWorker": ServiceWorker.startWorkerReturnValue;
+    "ServiceWorker.stopAllWorkers": ServiceWorker.stopAllWorkersReturnValue;
+    "ServiceWorker.stopWorker": ServiceWorker.stopWorkerReturnValue;
+    "ServiceWorker.unregister": ServiceWorker.unregisterReturnValue;
+    "ServiceWorker.updateRegistration": ServiceWorker.updateRegistrationReturnValue;
+    "Storage.clearDataForOrigin": Storage.clearDataForOriginReturnValue;
+    "Storage.getCookies": Storage.getCookiesReturnValue;
+    "Storage.setCookies": Storage.setCookiesReturnValue;
+    "Storage.clearCookies": Storage.clearCookiesReturnValue;
+    "Storage.getUsageAndQuota": Storage.getUsageAndQuotaReturnValue;
+    "Storage.overrideQuotaForOrigin": Storage.overrideQuotaForOriginReturnValue;
+    "Storage.trackCacheStorageForOrigin": Storage.trackCacheStorageForOriginReturnValue;
+    "Storage.trackIndexedDBForOrigin": Storage.trackIndexedDBForOriginReturnValue;
+    "Storage.untrackCacheStorageForOrigin": Storage.untrackCacheStorageForOriginReturnValue;
+    "Storage.untrackIndexedDBForOrigin": Storage.untrackIndexedDBForOriginReturnValue;
+    "SystemInfo.getInfo": SystemInfo.getInfoReturnValue;
+    "SystemInfo.getProcessInfo": SystemInfo.getProcessInfoReturnValue;
+    "Target.activateTarget": Target.activateTargetReturnValue;
+    "Target.attachToTarget": Target.attachToTargetReturnValue;
+    "Target.attachToBrowserTarget": Target.attachToBrowserTargetReturnValue;
+    "Target.closeTarget": Target.closeTargetReturnValue;
+    "Target.exposeDevToolsProtocol": Target.exposeDevToolsProtocolReturnValue;
+    "Target.createBrowserContext": Target.createBrowserContextReturnValue;
+    "Target.getBrowserContexts": Target.getBrowserContextsReturnValue;
+    "Target.createTarget": Target.createTargetReturnValue;
+    "Target.detachFromTarget": Target.detachFromTargetReturnValue;
+    "Target.disposeBrowserContext": Target.disposeBrowserContextReturnValue;
+    "Target.getTargetInfo": Target.getTargetInfoReturnValue;
+    "Target.getTargets": Target.getTargetsReturnValue;
+    "Target.sendMessageToTarget": Target.sendMessageToTargetReturnValue;
+    "Target.setAutoAttach": Target.setAutoAttachReturnValue;
+    "Target.setDiscoverTargets": Target.setDiscoverTargetsReturnValue;
+    "Target.setRemoteLocations": Target.setRemoteLocationsReturnValue;
+    "Tethering.bind": Tethering.bindReturnValue;
+    "Tethering.unbind": Tethering.unbindReturnValue;
+    "Tracing.end": Tracing.endReturnValue;
+    "Tracing.getCategories": Tracing.getCategoriesReturnValue;
+    "Tracing.recordClockSyncMarker": Tracing.recordClockSyncMarkerReturnValue;
+    "Tracing.requestMemoryDump": Tracing.requestMemoryDumpReturnValue;
+    "Tracing.start": Tracing.startReturnValue;
+    "Fetch.disable": Fetch.disableReturnValue;
+    "Fetch.enable": Fetch.enableReturnValue;
+    "Fetch.failRequest": Fetch.failRequestReturnValue;
+    "Fetch.fulfillRequest": Fetch.fulfillRequestReturnValue;
+    "Fetch.continueRequest": Fetch.continueRequestReturnValue;
+    "Fetch.continueWithAuth": Fetch.continueWithAuthReturnValue;
+    "Fetch.getResponseBody": Fetch.getResponseBodyReturnValue;
+    "Fetch.takeResponseBodyAsStream": Fetch.takeResponseBodyAsStreamReturnValue;
+    "WebAudio.enable": WebAudio.enableReturnValue;
+    "WebAudio.disable": WebAudio.disableReturnValue;
+    "WebAudio.getRealtimeData": WebAudio.getRealtimeDataReturnValue;
+    "WebAuthn.enable": WebAuthn.enableReturnValue;
+    "WebAuthn.disable": WebAuthn.disableReturnValue;
+    "WebAuthn.addVirtualAuthenticator": WebAuthn.addVirtualAuthenticatorReturnValue;
+    "WebAuthn.removeVirtualAuthenticator": WebAuthn.removeVirtualAuthenticatorReturnValue;
+    "WebAuthn.addCredential": WebAuthn.addCredentialReturnValue;
+    "WebAuthn.getCredential": WebAuthn.getCredentialReturnValue;
+    "WebAuthn.getCredentials": WebAuthn.getCredentialsReturnValue;
+    "WebAuthn.removeCredential": WebAuthn.removeCredentialReturnValue;
+    "WebAuthn.clearCredentials": WebAuthn.clearCredentialsReturnValue;
+    "WebAuthn.setUserVerified": WebAuthn.setUserVerifiedReturnValue;
+    "WebAuthn.setAutomaticPresenceSimulation": WebAuthn.setAutomaticPresenceSimulationReturnValue;
+    "Media.enable": Media.enableReturnValue;
+    "Media.disable": Media.disableReturnValue;
+    "Console.clearMessages": Console.clearMessagesReturnValue;
+    "Console.disable": Console.disableReturnValue;
+    "Console.enable": Console.enableReturnValue;
+    "Debugger.continueToLocation": Debugger.continueToLocationReturnValue;
+    "Debugger.disable": Debugger.disableReturnValue;
+    "Debugger.enable": Debugger.enableReturnValue;
+    "Debugger.evaluateOnCallFrame": Debugger.evaluateOnCallFrameReturnValue;
+    "Debugger.executeWasmEvaluator": Debugger.executeWasmEvaluatorReturnValue;
+    "Debugger.getPossibleBreakpoints": Debugger.getPossibleBreakpointsReturnValue;
+    "Debugger.getScriptSource": Debugger.getScriptSourceReturnValue;
+    "Debugger.getWasmBytecode": Debugger.getWasmBytecodeReturnValue;
+    "Debugger.getStackTrace": Debugger.getStackTraceReturnValue;
+    "Debugger.pause": Debugger.pauseReturnValue;
+    "Debugger.pauseOnAsyncCall": Debugger.pauseOnAsyncCallReturnValue;
+    "Debugger.removeBreakpoint": Debugger.removeBreakpointReturnValue;
+    "Debugger.restartFrame": Debugger.restartFrameReturnValue;
+    "Debugger.resume": Debugger.resumeReturnValue;
+    "Debugger.searchInContent": Debugger.searchInContentReturnValue;
+    "Debugger.setAsyncCallStackDepth": Debugger.setAsyncCallStackDepthReturnValue;
+    "Debugger.setBlackboxPatterns": Debugger.setBlackboxPatternsReturnValue;
+    "Debugger.setBlackboxedRanges": Debugger.setBlackboxedRangesReturnValue;
+    "Debugger.setBreakpoint": Debugger.setBreakpointReturnValue;
+    "Debugger.setInstrumentationBreakpoint": Debugger.setInstrumentationBreakpointReturnValue;
+    "Debugger.setBreakpointByUrl": Debugger.setBreakpointByUrlReturnValue;
+    "Debugger.setBreakpointOnFunctionCall": Debugger.setBreakpointOnFunctionCallReturnValue;
+    "Debugger.setBreakpointsActive": Debugger.setBreakpointsActiveReturnValue;
+    "Debugger.setPauseOnExceptions": Debugger.setPauseOnExceptionsReturnValue;
+    "Debugger.setReturnValue": Debugger.setReturnValueReturnValue;
+    "Debugger.setScriptSource": Debugger.setScriptSourceReturnValue;
+    "Debugger.setSkipAllPauses": Debugger.setSkipAllPausesReturnValue;
+    "Debugger.setVariableValue": Debugger.setVariableValueReturnValue;
+    "Debugger.stepInto": Debugger.stepIntoReturnValue;
+    "Debugger.stepOut": Debugger.stepOutReturnValue;
+    "Debugger.stepOver": Debugger.stepOverReturnValue;
+    "HeapProfiler.addInspectedHeapObject": HeapProfiler.addInspectedHeapObjectReturnValue;
+    "HeapProfiler.collectGarbage": HeapProfiler.collectGarbageReturnValue;
+    "HeapProfiler.disable": HeapProfiler.disableReturnValue;
+    "HeapProfiler.enable": HeapProfiler.enableReturnValue;
+    "HeapProfiler.getHeapObjectId": HeapProfiler.getHeapObjectIdReturnValue;
+    "HeapProfiler.getObjectByHeapObjectId": HeapProfiler.getObjectByHeapObjectIdReturnValue;
+    "HeapProfiler.getSamplingProfile": HeapProfiler.getSamplingProfileReturnValue;
+    "HeapProfiler.startSampling": HeapProfiler.startSamplingReturnValue;
+    "HeapProfiler.startTrackingHeapObjects": HeapProfiler.startTrackingHeapObjectsReturnValue;
+    "HeapProfiler.stopSampling": HeapProfiler.stopSamplingReturnValue;
+    "HeapProfiler.stopTrackingHeapObjects": HeapProfiler.stopTrackingHeapObjectsReturnValue;
+    "HeapProfiler.takeHeapSnapshot": HeapProfiler.takeHeapSnapshotReturnValue;
+    "Profiler.disable": Profiler.disableReturnValue;
+    "Profiler.enable": Profiler.enableReturnValue;
+    "Profiler.getBestEffortCoverage": Profiler.getBestEffortCoverageReturnValue;
+    "Profiler.setSamplingInterval": Profiler.setSamplingIntervalReturnValue;
+    "Profiler.start": Profiler.startReturnValue;
+    "Profiler.startPreciseCoverage": Profiler.startPreciseCoverageReturnValue;
+    "Profiler.startTypeProfile": Profiler.startTypeProfileReturnValue;
+    "Profiler.stop": Profiler.stopReturnValue;
+    "Profiler.stopPreciseCoverage": Profiler.stopPreciseCoverageReturnValue;
+    "Profiler.stopTypeProfile": Profiler.stopTypeProfileReturnValue;
+    "Profiler.takePreciseCoverage": Profiler.takePreciseCoverageReturnValue;
+    "Profiler.takeTypeProfile": Profiler.takeTypeProfileReturnValue;
+    "Profiler.enableCounters": Profiler.enableCountersReturnValue;
+    "Profiler.disableCounters": Profiler.disableCountersReturnValue;
+    "Profiler.getCounters": Profiler.getCountersReturnValue;
+    "Profiler.enableRuntimeCallStats": Profiler.enableRuntimeCallStatsReturnValue;
+    "Profiler.disableRuntimeCallStats": Profiler.disableRuntimeCallStatsReturnValue;
+    "Profiler.getRuntimeCallStats": Profiler.getRuntimeCallStatsReturnValue;
+    "Runtime.awaitPromise": Runtime.awaitPromiseReturnValue;
+    "Runtime.callFunctionOn": Runtime.callFunctionOnReturnValue;
+    "Runtime.compileScript": Runtime.compileScriptReturnValue;
+    "Runtime.disable": Runtime.disableReturnValue;
+    "Runtime.discardConsoleEntries": Runtime.discardConsoleEntriesReturnValue;
+    "Runtime.enable": Runtime.enableReturnValue;
+    "Runtime.evaluate": Runtime.evaluateReturnValue;
+    "Runtime.getIsolateId": Runtime.getIsolateIdReturnValue;
+    "Runtime.getHeapUsage": Runtime.getHeapUsageReturnValue;
+    "Runtime.getProperties": Runtime.getPropertiesReturnValue;
+    "Runtime.globalLexicalScopeNames": Runtime.globalLexicalScopeNamesReturnValue;
+    "Runtime.queryObjects": Runtime.queryObjectsReturnValue;
+    "Runtime.releaseObject": Runtime.releaseObjectReturnValue;
+    "Runtime.releaseObjectGroup": Runtime.releaseObjectGroupReturnValue;
+    "Runtime.runIfWaitingForDebugger": Runtime.runIfWaitingForDebuggerReturnValue;
+    "Runtime.runScript": Runtime.runScriptReturnValue;
+    "Runtime.setAsyncCallStackDepth": Runtime.setAsyncCallStackDepthReturnValue;
+    "Runtime.setCustomObjectFormatterEnabled": Runtime.setCustomObjectFormatterEnabledReturnValue;
+    "Runtime.setMaxCallStackSizeToCapture": Runtime.setMaxCallStackSizeToCaptureReturnValue;
+    "Runtime.terminateExecution": Runtime.terminateExecutionReturnValue;
+    "Runtime.addBinding": Runtime.addBindingReturnValue;
+    "Runtime.removeBinding": Runtime.removeBindingReturnValue;
+    "Schema.getDomains": Schema.getDomainsReturnValue;
+  }
+}
diff --git a/types/trace.d.ts b/types/trace.d.ts
new file mode 100644
index 0000000000..54b31d68a4
--- /dev/null
+++ b/types/trace.d.ts
@@ -0,0 +1,101 @@
+/**
+ * Copyright (c) Microsoft Corporation.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+export type ContextCreatedTraceEvent = {
+  type: 'context-created',
+  browserName: string,
+  contextId: string,
+  deviceScaleFactor: number,
+  isMobile: boolean,
+  viewportSize?: { width: number, height: number },
+};
+
+export type ContextDestroyedTraceEvent = {
+  type: 'context-destroyed',
+  contextId: string,
+};
+
+export type NetworkResourceTraceEvent = {
+  type: 'resource',
+  contextId: string,
+  pageId: string,
+  frameId: string,
+  url: string,
+  contentType: string,
+  responseHeaders: { name: string, value: string }[],
+  sha1: string,
+};
+
+export type PageCreatedTraceEvent = {
+  type: 'page-created',
+  contextId: string,
+  pageId: string,
+};
+
+export type PageDestroyedTraceEvent = {
+  type: 'page-destroyed',
+  contextId: string,
+  pageId: string,
+};
+
+export type PageVideoTraceEvent = {
+  type: 'page-video',
+  contextId: string,
+  pageId: string,
+  fileName: string,
+};
+
+export type ActionTraceEvent = {
+  type: 'action',
+  contextId: string,
+  action: string,
+  pageId?: string,
+  selector?: string,
+  label?: string,
+  value?: string,
+  startTime?: number,
+  endTime?: number,
+  logs?: string[],
+  snapshot?: {
+    sha1: string,
+    duration: number,
+  },
+  stack?: string,
+  error?: string,
+};
+
+export type TraceEvent =
+    ContextCreatedTraceEvent |
+    ContextDestroyedTraceEvent |
+    PageCreatedTraceEvent |
+    PageDestroyedTraceEvent |
+    PageVideoTraceEvent |
+    NetworkResourceTraceEvent |
+    ActionTraceEvent;
+
+
+export type FrameSnapshot = {
+  frameId: string,
+  url: string,
+  html: string,
+  resourceOverrides: { url: string, sha1: string }[],
+};
+
+export type PageSnapshot = {
+  viewportSize?: { width: number, height: number },
+  // First frame is the main frame.
+  frames: FrameSnapshot[],
+};
diff --git a/types/types.d.ts b/types/types.d.ts
new file mode 100644
index 0000000000..f6c3a630ae
--- /dev/null
+++ b/types/types.d.ts
@@ -0,0 +1,7866 @@
+// This file is generated by /utils/generate_types/index.js
+/**
+ * Copyright (c) Microsoft Corporation.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import { Protocol } from './protocol';
+import { ChildProcess } from 'child_process';
+import { EventEmitter } from 'events';
+import { Readable } from 'stream';
+
+/**
+ * Can be converted to JSON
+ */
+type Serializable = {};
+/**
+ * Can be converted to JSON, but may also contain JSHandles.
+ */
+type EvaluationArgument = {};
+
+type NoHandles<Arg> = Arg extends JSHandle ? never : (Arg extends object ? { [Key in keyof Arg]: NoHandles<Arg[Key]> } : Arg);
+type Unboxed<Arg> =
+  Arg extends ElementHandle<infer T> ? T :
+  Arg extends JSHandle<infer T> ? T :
+  Arg extends NoHandles<Arg> ? Arg :
+  Arg extends [infer A0] ? [Unboxed<A0>] :
+  Arg extends [infer A0, infer A1] ? [Unboxed<A0>, Unboxed<A1>] :
+  Arg extends [infer A0, infer A1, infer A2] ? [Unboxed<A0>, Unboxed<A1>, Unboxed<A2>] :
+  Arg extends [infer A0, infer A1, infer A2, infer A3] ? [Unboxed<A0>, Unboxed<A1>, Unboxed<A2>, Unboxed<A3>] :
+  Arg extends Array<infer T> ? Array<Unboxed<T>> :
+  Arg extends object ? { [Key in keyof Arg]: Unboxed<Arg[Key]> } :
+  Arg;
+type PageFunction<Arg, R> = string | ((arg: Unboxed<Arg>) => R | Promise<R>);
+type PageFunctionOn<On, Arg2, R> = string | ((on: On, arg2: Unboxed<Arg2>) => R | Promise<R>);
+type SmartHandle<T> = T extends Node ? ElementHandle<T> : JSHandle<T>;
+type ElementHandleForTag<K extends keyof HTMLElementTagNameMap> = ElementHandle<HTMLElementTagNameMap[K]>;
+
+type PageWaitForSelectorOptionsNotHidden = PageWaitForSelectorOptions & {
+  state: 'visible'|'attached';
+};
+type ElementHandleWaitForSelectorOptionsNotHidden = ElementHandleWaitForSelectorOptions & {
+  state: 'visible'|'attached';
+};
+
+type BindingSource = { context: BrowserContext, page: Page, frame: Frame };
+
+/**
+ * Page provides methods to interact with a single tab in a Browser, or an extension background page in Chromium. One Browser instance might have multiple Page instances.
+ * This example creates a page, navigates it to a URL, and then saves a screenshot:
+ * ```js
+ * const { webkit } = require('playwright');  // Or 'chromium' or 'firefox'.
+ * 
+ * (async () => {
+ *   const browser = await webkit.launch();
+ *   const context = await browser.newContext();
+ *   const page = await context.newPage();
+ *   await page.goto('https://example.com');
+ *   await page.screenshot({path: 'screenshot.png'});
+ *   await browser.close();
+ * })();
+ * ```
+ * The Page class emits various events (described below) which can be handled using any of Node's native `EventEmitter` methods, such as `on`, `once` or `removeListener`.
+ * This example logs a message for a single page `load` event:
+ * ```js
+ * page.once('load', () => console.log('Page loaded!'));
+ * ```
+ * To unsubscribe from events use the `removeListener` method:
+ * ```js
+ * function logRequest(interceptedRequest) {
+ *   console.log('A request was made:', interceptedRequest.url());
+ * }
+ * page.on('request', logRequest);
+ * // Sometime later...
+ * page.removeListener('request', logRequest);
+ * ```
+ */
+export interface Page {
+  /**
+   * Returns the value of the `pageFunction` invacation.
+   * If the function passed to the `page.evaluate` returns a Promise, then `page.evaluate` would wait for the promise to resolve and return its value.
+   * If the function passed to the `page.evaluate` returns a non-Serializable value, then `page.evaluate` resolves to `undefined`. DevTools Protocol also supports transferring some additional values that are not serializable by `JSON`: `-0`, `NaN`, `Infinity`, `-Infinity`, and bigint literals.
+   * Passing argument to `pageFunction`:
+   * ```js
+   * const result = await page.evaluate(([x, y]) => {
+   *   return Promise.resolve(x * y);
+   * }, [7, 8]);
+   * console.log(result); // prints "56"
+   * ```
+   * A string can also be passed in instead of a function:
+   * ```js
+   * console.log(await page.evaluate('1 + 2')); // prints "3"
+   * const x = 10;
+   * console.log(await page.evaluate(`1 + ${x}`)); // prints "11"
+   * ```
+   * ElementHandle instances can be passed as an argument to the `page.evaluate`:
+   * ```js
+   * const bodyHandle = await page.$('body');
+   * const html = await page.evaluate(([body, suffix]) => body.innerHTML + suffix, [bodyHandle, 'hello']);
+   * await bodyHandle.dispose();
+   * ```
+   * Shortcut for main frame's `frame.evaluate(pageFunction[, arg])`.
+   * @param pageFunction Function to be evaluated in the page context
+   * @param arg Optional argument to pass to `pageFunction`
+   */
+  evaluate<R, Arg>(pageFunction: PageFunction<Arg, R>, arg: Arg): Promise<R>;
+  evaluate<R>(pageFunction: PageFunction<void, R>, arg?: any): Promise<R>;
+
+  /**
+   * Returns the value of the `pageFunction` invacation as in-page object (JSHandle).
+   * The only difference between `page.evaluate` and `page.evaluateHandle` is that `page.evaluateHandle` returns in-page object (JSHandle).
+   * If the function passed to the `page.evaluateHandle` returns a Promise, then `page.evaluateHandle` would wait for the promise to resolve and return its value.
+   * A string can also be passed in instead of a function:
+   * ```js
+   * const aHandle = await page.evaluateHandle('document'); // Handle for the 'document'
+   * ```
+   * JSHandle instances can be passed as an argument to the `page.evaluateHandle`:
+   * ```js
+   * const aHandle = await page.evaluateHandle(() => document.body);
+   * const resultHandle = await page.evaluateHandle(body => body.innerHTML, aHandle);
+   * console.log(await resultHandle.jsonValue());
+   * await resultHandle.dispose();
+   * ```
+   * @param pageFunction Function to be evaluated in the page context
+   * @param arg Optional argument to pass to `pageFunction`
+   */
+  evaluateHandle<R, Arg>(pageFunction: PageFunction<Arg, R>, arg: Arg): Promise<SmartHandle<R>>;
+  evaluateHandle<R>(pageFunction: PageFunction<void, R>, arg?: any): Promise<SmartHandle<R>>;
+
+  /**
+   * The method finds an element matching the specified selector within the page. If no elements match the selector, the return value resolves to `null`.
+   * Shortcut for main frame's `frame.$(selector)`.
+   * @param selector A selector to query for. See working with selectors for more details.
+   */
+  $<K extends keyof HTMLElementTagNameMap>(selector: K): Promise<ElementHandleForTag<K> | null>;
+  $(selector: string): Promise<ElementHandle<SVGElement | HTMLElement> | null>;
+
+  /**
+   * The method finds all elements matching the specified selector within the page. If no elements match the selector, the return value resolves to `[]`.
+   * Shortcut for main frame's `frame.$$(selector)`.
+   * @param selector A selector to query for. See working with selectors for more details.
+   */
+  $$<K extends keyof HTMLElementTagNameMap>(selector: K): Promise<ElementHandleForTag<K>[]>;
+  $$(selector: string): Promise<ElementHandle<SVGElement | HTMLElement>[]>;
+
+  /**
+   * The method finds an element matching the specified selector within the page and passes it as a first argument to `pageFunction`. If no elements match the selector, the method throws an error. Returns the value of `pageFunction`.
+   * If `pageFunction` returns a Promise, then `page.$eval(selector, pageFunction[, arg])` would wait for the promise to resolve and return its value.
+   * Examples:
+   * ```js
+   * const searchValue = await page.$eval('#search', el => el.value);
+   * const preloadHref = await page.$eval('link[rel=preload]', el => el.href);
+   * const html = await page.$eval('.main-container', (e, suffix) => e.outerHTML + suffix, 'hello');
+   * ```
+   * Shortcut for main frame's `frame.$eval(selector, pageFunction[, arg])`.
+   * @param selector A selector to query for. See working with selectors for more details.
+   * @param pageFunction Function to be evaluated in browser context
+   * @param arg Optional argument to pass to `pageFunction`
+   */
+  $eval<K extends keyof HTMLElementTagNameMap, R, Arg>(selector: K, pageFunction: PageFunctionOn<HTMLElementTagNameMap[K], Arg, R>, arg: Arg): Promise<R>;
+  $eval<R, Arg, E extends SVGElement | HTMLElement = SVGElement | HTMLElement>(selector: string, pageFunction: PageFunctionOn<E, Arg, R>, arg: Arg): Promise<R>;
+  $eval<K extends keyof HTMLElementTagNameMap, R>(selector: K, pageFunction: PageFunctionOn<HTMLElementTagNameMap[K], void, R>, arg?: any): Promise<R>;
+  $eval<R, E extends SVGElement | HTMLElement = SVGElement | HTMLElement>(selector: string, pageFunction: PageFunctionOn<E, void, R>, arg?: any): Promise<R>;
+
+  /**
+   * The method finds all elements matching the specified selector within the page and passes an array of matched elements as a first argument to `pageFunction`. Returns the result of `pageFunction` invocation.
+   * If `pageFunction` returns a Promise, then `page.$$eval(selector, pageFunction[, arg])` would wait for the promise to resolve and return its value.
+   * Examples:
+   * ```js
+   * const divsCounts = await page.$$eval('div', (divs, min) => divs.length >= min, 10);
+   * ```
+   * @param selector A selector to query for. See working with selectors for more details.
+   * @param pageFunction Function to be evaluated in browser context
+   * @param arg Optional argument to pass to `pageFunction`
+   */
+  $$eval<K extends keyof HTMLElementTagNameMap, R, Arg>(selector: K, pageFunction: PageFunctionOn<HTMLElementTagNameMap[K][], Arg, R>, arg: Arg): Promise<R>;
+  $$eval<R, Arg, E extends SVGElement | HTMLElement = SVGElement | HTMLElement>(selector: string, pageFunction: PageFunctionOn<E[], Arg, R>, arg: Arg): Promise<R>;
+  $$eval<K extends keyof HTMLElementTagNameMap, R>(selector: K, pageFunction: PageFunctionOn<HTMLElementTagNameMap[K][], void, R>, arg?: any): Promise<R>;
+  $$eval<R, E extends SVGElement | HTMLElement = SVGElement | HTMLElement>(selector: string, pageFunction: PageFunctionOn<E[], void, R>, arg?: any): Promise<R>;
+
+  /**
+   * Returns when the `pageFunction` returns a truthy value. It resolves to a JSHandle of the truthy value.
+   * The `waitForFunction` can be used to observe viewport size change:
+   * ```js
+   * const { webkit } = require('playwright');  // Or 'chromium' or 'firefox'.
+   * 
+   * (async () => {
+   *   const browser = await webkit.launch();
+   *   const page = await browser.newPage();
+   *   const watchDog = page.waitForFunction('window.innerWidth < 100');
+   *   await page.setViewportSize({width: 50, height: 50});
+   *   await watchDog;
+   *   await browser.close();
+   * })();
+   * ```
+   * To pass an argument to the predicate of `page.waitForFunction` function:
+   * ```js
+   * const selector = '.foo';
+   * await page.waitForFunction(selector => !!document.querySelector(selector), selector);
+   * ```
+   * Shortcut for main frame's `frame.waitForFunction(pageFunction[, arg, options])`.
+   * @param pageFunction Function to be evaluated in browser context
+   * @param arg Optional argument to pass to `pageFunction`
+   * @param options 
+   */
+  waitForFunction<R, Arg>(pageFunction: PageFunction<Arg, R>, arg: Arg, options?: PageWaitForFunctionOptions): Promise<SmartHandle<R>>;
+  waitForFunction<R>(pageFunction: PageFunction<void, R>, arg?: any, options?: PageWaitForFunctionOptions): Promise<SmartHandle<R>>;
+
+  /**
+   * Returns when element specified by selector satisfies `state` option. Returns `null` if waiting for `hidden` or `detached`.
+   * Wait for the `selector` to satisfy `state` option (either appear/disappear from dom, or become visible/hidden). If at the moment of calling the method `selector` already satisfies the condition, the method will return immediately. If the selector doesn't satisfy the condition for the `timeout` milliseconds, the function will throw.
+   * This method works across navigations:
+   * ```js
+   * const { chromium } = require('playwright');  // Or 'firefox' or 'webkit'.
+   * 
+   * (async () => {
+   *   const browser = await chromium.launch();
+   *   const page = await browser.newPage();
+   *   let currentURL;
+   *   page
+   *     .waitForSelector('img')
+   *     .then(() => console.log('First URL with image: ' + currentURL));
+   *   for (currentURL of ['https://example.com', 'https://google.com', 'https://bbc.com']) {
+   *     await page.goto(currentURL);
+   *   }
+   *   await browser.close();
+   * })();
+   * ```
+   * @param selector A selector to query for. See working with selectors for more details.
+   * @param options 
+   */
+  waitForSelector<K extends keyof HTMLElementTagNameMap>(selector: K, options?: PageWaitForSelectorOptionsNotHidden): Promise<ElementHandleForTag<K>>;
+  waitForSelector(selector: string, options?: PageWaitForSelectorOptionsNotHidden): Promise<ElementHandle<SVGElement | HTMLElement>>;
+  waitForSelector<K extends keyof HTMLElementTagNameMap>(selector: K, options: PageWaitForSelectorOptions): Promise<ElementHandleForTag<K> | null>;
+  waitForSelector(selector: string, options: PageWaitForSelectorOptions): Promise<null|ElementHandle<SVGElement | HTMLElement>>;
+
+  /**
+   * The method adds a function called `name` on the `window` object of every frame in this page. When called, the function executes `playwrightBinding` and returns a Promise which resolves to the return value of `playwrightBinding`. If the `playwrightBinding` returns a Promise, it will be awaited.
+   * The first argument of the `playwrightBinding` function contains information about the caller: `{ browserContext: BrowserContext, page: Page, frame: Frame }`.
+   * See `browserContext.exposeBinding(name, playwrightBinding[, options])` for the context-wide version.
+   * 
+   * **NOTE** Functions installed via `page.exposeBinding` survive navigations.
+   * 
+   * An example of exposing page URL to all frames in a page:
+   * ```js
+   * const { webkit } = require('playwright');  // Or 'chromium' or 'firefox'.
+   * 
+   * (async () => {
+   *   const browser = await webkit.launch({ headless: false });
+   *   const context = await browser.newContext();
+   *   const page = await context.newPage();
+   *   await page.exposeBinding('pageURL', ({ page }) => page.url());
+   *   await page.setContent(`
+   *     <script>
+   *       async function onClick() {
+   *         document.querySelector('div').textContent = await window.pageURL();
+   *       }
+   *     </script>
+   *     <button onclick="onClick()">Click me</button>
+   *     <div></div>
+   *   `);
+   *   await page.click('button');
+   * })();
+   * ```
+   * An example of passing an element handle:
+   * ```js
+   * await page.exposeBinding('clicked', async (source, element) => {
+   *   console.log(await element.textContent());
+   * }, { handle: true });
+   * await page.setContent(`
+   *   <script>
+   *     document.addEventListener('click', event => window.clicked(event.target));
+   *   </script>
+   *   <div>Click me</div>
+   *   <div>Or click me</div>
+   * `);
+   * ```
+   * @param name Name of the function on the window object.
+   * @param playwrightBinding Callback function that will be called in the Playwright's context.
+   * @param options 
+   */
+  exposeBinding(name: string, playwrightBinding: (source: BindingSource, arg: JSHandle) => any, options: { handle: true }): Promise<void>;
+  exposeBinding(name: string, playwrightBinding: (source: BindingSource, ...args: any[]) => any, options?: { handle?: boolean }): Promise<void>;
+  /**
+   * Emitted when the page closes.
+   */
+  on(event: 'close', listener: () => void): this;
+
+  /**
+   * Emitted when JavaScript within the page calls one of console API methods, e.g. `console.log` or `console.dir`. Also emitted if the page throws an error or a warning.
+   * The arguments passed into `console.log` appear as arguments on the event handler.
+   * An example of handling `console` event:
+   * ```js
+   * page.on('console', msg => {
+   *   for (let i = 0; i < msg.args().length; ++i)
+   *     console.log(`${i}: ${msg.args()[i]}`);
+   * });
+   * page.evaluate(() => console.log('hello', 5, {foo: 'bar'}));
+   * ```
+   */
+  on(event: 'console', listener: (consoleMessage: ConsoleMessage) => void): this;
+
+  /**
+   * Emitted when the page crashes. Browser pages might crash if they try to allocate too much memory. When the page crashes, ongoing and subsequent operations will throw.
+   * The most common way to deal with crashes is to catch an exception:
+   * ```js
+   * try {
+   *   // Crash might happen during a click.
+   *   await page.click('button');
+   *   // Or while waiting for an event.
+   *   await page.waitForEvent('popup');
+   * } catch (e) {
+   *   // When the page crashes, exception message contains 'crash'.
+   * }
+   * ```
+   * However, when manually listening to events, it might be useful to avoid stalling when the page crashes. In this case, handling `crash` event helps:
+   * ```js
+   * await new Promise((resolve, reject) => {
+   *   page.on('requestfinished', async request => {
+   *     if (await someProcessing(request))
+   *       resolve(request);
+   *   });
+   *   page.on('crash', error => reject(error));
+   * });
+   * ```
+   */
+  on(event: 'crash', listener: () => void): this;
+
+  /**
+   * Emitted when a JavaScript dialog appears, such as `alert`, `prompt`, `confirm` or `beforeunload`. Playwright can respond to the dialog via `dialog.accept([promptText])` or `dialog.dismiss()` methods.
+   */
+  on(event: 'dialog', listener: (dialog: Dialog) => void): this;
+
+  /**
+   * Emitted when the JavaScript `DOMContentLoaded` event is dispatched.
+   */
+  on(event: 'domcontentloaded', listener: () => void): this;
+
+  /**
+   * Emitted when attachment download started. User can access basic file operations on downloaded content via the passed Download instance.
+   * 
+   * **NOTE** Browser context **must** be created with the `acceptDownloads` set to `true` when user needs access to the downloaded content. If `acceptDownloads` is not set or set to `false`, download events are emitted, but the actual download is not performed and user has no access to the downloaded files.
+   */
+  on(event: 'download', listener: (download: Download) => void): this;
+
+  /**
+   * Emitted when a file chooser is supposed to appear, such as after clicking the  `<input type=file>`. Playwright can respond to it via setting the input files using `fileChooser.setFiles(files[, options])` that can be uploaded after that.
+   * ```js
+   * page.on('filechooser', async (fileChooser) => {
+   *   await fileChooser.setFiles('/tmp/myfile.pdf');
+   * });
+   * ```
+   */
+  on(event: 'filechooser', listener: (fileChooser: FileChooser) => void): this;
+
+  /**
+   * Emitted when a frame is attached.
+   */
+  on(event: 'frameattached', listener: (frame: Frame) => void): this;
+
+  /**
+   * Emitted when a frame is detached.
+   */
+  on(event: 'framedetached', listener: (frame: Frame) => void): this;
+
+  /**
+   * Emitted when a frame is navigated to a new url.
+   */
+  on(event: 'framenavigated', listener: (frame: Frame) => void): this;
+
+  /**
+   * Emitted when the JavaScript `load` event is dispatched.
+   */
+  on(event: 'load', listener: () => void): this;
+
+  /**
+   * Emitted when an uncaught exception happens within the page.
+   */
+  on(event: 'pageerror', listener: (error: Error) => void): this;
+
+  /**
+   * Emitted when the page opens a new tab or window. This event is emitted in addition to the browserContext.on('page'), but only for popups relevant to this page.
+   * The earliest moment that page is available is when it has navigated to the initial url. For example, when opening a popup with `window.open('http://example.com')`, this event will fire when the network request to "http://example.com" is done and its response has started loading in the popup.
+   * ```js
+   * const [popup] = await Promise.all([
+   *   page.waitForEvent('popup'),
+   *   page.evaluate(() => window.open('https://example.com')),
+   * ]);
+   * console.log(await popup.evaluate('location.href'));
+   * ```
+   * 
+   * **NOTE** Use `page.waitForLoadState([state, options])` to wait until the page gets to a particular state (you should not need it in most cases).
+   */
+  on(event: 'popup', listener: (page: Page) => void): this;
+
+  /**
+   * Emitted when a page issues a request. The request object is read-only. In order to intercept and mutate requests, see `page.route(url, handler)` or `browserContext.route(url, handler)`.
+   */
+  on(event: 'request', listener: (request: Request) => void): this;
+
+  /**
+   * Emitted when a request fails, for example by timing out.
+   * 
+   * **NOTE** HTTP Error responses, such as 404 or 503, are still successful responses from HTTP standpoint, so request will complete with page.on('requestfinished') event and not with page.on('requestfailed').
+   */
+  on(event: 'requestfailed', listener: (request: Request) => void): this;
+
+  /**
+   * Emitted when a request finishes successfully after downloading the response body. For a successful response, the sequence of events is `request`, `response` and `requestfinished`.
+   */
+  on(event: 'requestfinished', listener: (request: Request) => void): this;
+
+  /**
+   * Emitted when response status and headers are received for a request. For a successful response, the sequence of events is `request`, `response` and `requestfinished`.
+   */
+  on(event: 'response', listener: (response: Response) => void): this;
+
+  /**
+   * Emitted when <WebSocket> request is sent.
+   */
+  on(event: 'websocket', listener: (webSocket: WebSocket) => void): this;
+
+  /**
+   * Emitted when a dedicated WebWorker is spawned by the page.
+   */
+  on(event: 'worker', listener: (worker: Worker) => void): this;
+
+  /**
+   * Emitted when the page closes.
+   */
+  once(event: 'close', listener: () => void): this;
+
+  /**
+   * Emitted when JavaScript within the page calls one of console API methods, e.g. `console.log` or `console.dir`. Also emitted if the page throws an error or a warning.
+   * The arguments passed into `console.log` appear as arguments on the event handler.
+   * An example of handling `console` event:
+   * ```js
+   * page.on('console', msg => {
+   *   for (let i = 0; i < msg.args().length; ++i)
+   *     console.log(`${i}: ${msg.args()[i]}`);
+   * });
+   * page.evaluate(() => console.log('hello', 5, {foo: 'bar'}));
+   * ```
+   */
+  once(event: 'console', listener: (consoleMessage: ConsoleMessage) => void): this;
+
+  /**
+   * Emitted when the page crashes. Browser pages might crash if they try to allocate too much memory. When the page crashes, ongoing and subsequent operations will throw.
+   * The most common way to deal with crashes is to catch an exception:
+   * ```js
+   * try {
+   *   // Crash might happen during a click.
+   *   await page.click('button');
+   *   // Or while waiting for an event.
+   *   await page.waitForEvent('popup');
+   * } catch (e) {
+   *   // When the page crashes, exception message contains 'crash'.
+   * }
+   * ```
+   * However, when manually listening to events, it might be useful to avoid stalling when the page crashes. In this case, handling `crash` event helps:
+   * ```js
+   * await new Promise((resolve, reject) => {
+   *   page.on('requestfinished', async request => {
+   *     if (await someProcessing(request))
+   *       resolve(request);
+   *   });
+   *   page.on('crash', error => reject(error));
+   * });
+   * ```
+   */
+  once(event: 'crash', listener: () => void): this;
+
+  /**
+   * Emitted when a JavaScript dialog appears, such as `alert`, `prompt`, `confirm` or `beforeunload`. Playwright can respond to the dialog via `dialog.accept([promptText])` or `dialog.dismiss()` methods.
+   */
+  once(event: 'dialog', listener: (dialog: Dialog) => void): this;
+
+  /**
+   * Emitted when the JavaScript `DOMContentLoaded` event is dispatched.
+   */
+  once(event: 'domcontentloaded', listener: () => void): this;
+
+  /**
+   * Emitted when attachment download started. User can access basic file operations on downloaded content via the passed Download instance.
+   * 
+   * **NOTE** Browser context **must** be created with the `acceptDownloads` set to `true` when user needs access to the downloaded content. If `acceptDownloads` is not set or set to `false`, download events are emitted, but the actual download is not performed and user has no access to the downloaded files.
+   */
+  once(event: 'download', listener: (download: Download) => void): this;
+
+  /**
+   * Emitted when a file chooser is supposed to appear, such as after clicking the  `<input type=file>`. Playwright can respond to it via setting the input files using `fileChooser.setFiles(files[, options])` that can be uploaded after that.
+   * ```js
+   * page.on('filechooser', async (fileChooser) => {
+   *   await fileChooser.setFiles('/tmp/myfile.pdf');
+   * });
+   * ```
+   */
+  once(event: 'filechooser', listener: (fileChooser: FileChooser) => void): this;
+
+  /**
+   * Emitted when a frame is attached.
+   */
+  once(event: 'frameattached', listener: (frame: Frame) => void): this;
+
+  /**
+   * Emitted when a frame is detached.
+   */
+  once(event: 'framedetached', listener: (frame: Frame) => void): this;
+
+  /**
+   * Emitted when a frame is navigated to a new url.
+   */
+  once(event: 'framenavigated', listener: (frame: Frame) => void): this;
+
+  /**
+   * Emitted when the JavaScript `load` event is dispatched.
+   */
+  once(event: 'load', listener: () => void): this;
+
+  /**
+   * Emitted when an uncaught exception happens within the page.
+   */
+  once(event: 'pageerror', listener: (error: Error) => void): this;
+
+  /**
+   * Emitted when the page opens a new tab or window. This event is emitted in addition to the browserContext.on('page'), but only for popups relevant to this page.
+   * The earliest moment that page is available is when it has navigated to the initial url. For example, when opening a popup with `window.open('http://example.com')`, this event will fire when the network request to "http://example.com" is done and its response has started loading in the popup.
+   * ```js
+   * const [popup] = await Promise.all([
+   *   page.waitForEvent('popup'),
+   *   page.evaluate(() => window.open('https://example.com')),
+   * ]);
+   * console.log(await popup.evaluate('location.href'));
+   * ```
+   * 
+   * **NOTE** Use `page.waitForLoadState([state, options])` to wait until the page gets to a particular state (you should not need it in most cases).
+   */
+  once(event: 'popup', listener: (page: Page) => void): this;
+
+  /**
+   * Emitted when a page issues a request. The request object is read-only. In order to intercept and mutate requests, see `page.route(url, handler)` or `browserContext.route(url, handler)`.
+   */
+  once(event: 'request', listener: (request: Request) => void): this;
+
+  /**
+   * Emitted when a request fails, for example by timing out.
+   * 
+   * **NOTE** HTTP Error responses, such as 404 or 503, are still successful responses from HTTP standpoint, so request will complete with page.on('requestfinished') event and not with page.on('requestfailed').
+   */
+  once(event: 'requestfailed', listener: (request: Request) => void): this;
+
+  /**
+   * Emitted when a request finishes successfully after downloading the response body. For a successful response, the sequence of events is `request`, `response` and `requestfinished`.
+   */
+  once(event: 'requestfinished', listener: (request: Request) => void): this;
+
+  /**
+   * Emitted when response status and headers are received for a request. For a successful response, the sequence of events is `request`, `response` and `requestfinished`.
+   */
+  once(event: 'response', listener: (response: Response) => void): this;
+
+  /**
+   * Emitted when <WebSocket> request is sent.
+   */
+  once(event: 'websocket', listener: (webSocket: WebSocket) => void): this;
+
+  /**
+   * Emitted when a dedicated WebWorker is spawned by the page.
+   */
+  once(event: 'worker', listener: (worker: Worker) => void): this;
+
+  /**
+   * Emitted when the page closes.
+   */
+  addListener(event: 'close', listener: () => void): this;
+
+  /**
+   * Emitted when JavaScript within the page calls one of console API methods, e.g. `console.log` or `console.dir`. Also emitted if the page throws an error or a warning.
+   * The arguments passed into `console.log` appear as arguments on the event handler.
+   * An example of handling `console` event:
+   * ```js
+   * page.on('console', msg => {
+   *   for (let i = 0; i < msg.args().length; ++i)
+   *     console.log(`${i}: ${msg.args()[i]}`);
+   * });
+   * page.evaluate(() => console.log('hello', 5, {foo: 'bar'}));
+   * ```
+   */
+  addListener(event: 'console', listener: (consoleMessage: ConsoleMessage) => void): this;
+
+  /**
+   * Emitted when the page crashes. Browser pages might crash if they try to allocate too much memory. When the page crashes, ongoing and subsequent operations will throw.
+   * The most common way to deal with crashes is to catch an exception:
+   * ```js
+   * try {
+   *   // Crash might happen during a click.
+   *   await page.click('button');
+   *   // Or while waiting for an event.
+   *   await page.waitForEvent('popup');
+   * } catch (e) {
+   *   // When the page crashes, exception message contains 'crash'.
+   * }
+   * ```
+   * However, when manually listening to events, it might be useful to avoid stalling when the page crashes. In this case, handling `crash` event helps:
+   * ```js
+   * await new Promise((resolve, reject) => {
+   *   page.on('requestfinished', async request => {
+   *     if (await someProcessing(request))
+   *       resolve(request);
+   *   });
+   *   page.on('crash', error => reject(error));
+   * });
+   * ```
+   */
+  addListener(event: 'crash', listener: () => void): this;
+
+  /**
+   * Emitted when a JavaScript dialog appears, such as `alert`, `prompt`, `confirm` or `beforeunload`. Playwright can respond to the dialog via `dialog.accept([promptText])` or `dialog.dismiss()` methods.
+   */
+  addListener(event: 'dialog', listener: (dialog: Dialog) => void): this;
+
+  /**
+   * Emitted when the JavaScript `DOMContentLoaded` event is dispatched.
+   */
+  addListener(event: 'domcontentloaded', listener: () => void): this;
+
+  /**
+   * Emitted when attachment download started. User can access basic file operations on downloaded content via the passed Download instance.
+   * 
+   * **NOTE** Browser context **must** be created with the `acceptDownloads` set to `true` when user needs access to the downloaded content. If `acceptDownloads` is not set or set to `false`, download events are emitted, but the actual download is not performed and user has no access to the downloaded files.
+   */
+  addListener(event: 'download', listener: (download: Download) => void): this;
+
+  /**
+   * Emitted when a file chooser is supposed to appear, such as after clicking the  `<input type=file>`. Playwright can respond to it via setting the input files using `fileChooser.setFiles(files[, options])` that can be uploaded after that.
+   * ```js
+   * page.on('filechooser', async (fileChooser) => {
+   *   await fileChooser.setFiles('/tmp/myfile.pdf');
+   * });
+   * ```
+   */
+  addListener(event: 'filechooser', listener: (fileChooser: FileChooser) => void): this;
+
+  /**
+   * Emitted when a frame is attached.
+   */
+  addListener(event: 'frameattached', listener: (frame: Frame) => void): this;
+
+  /**
+   * Emitted when a frame is detached.
+   */
+  addListener(event: 'framedetached', listener: (frame: Frame) => void): this;
+
+  /**
+   * Emitted when a frame is navigated to a new url.
+   */
+  addListener(event: 'framenavigated', listener: (frame: Frame) => void): this;
+
+  /**
+   * Emitted when the JavaScript `load` event is dispatched.
+   */
+  addListener(event: 'load', listener: () => void): this;
+
+  /**
+   * Emitted when an uncaught exception happens within the page.
+   */
+  addListener(event: 'pageerror', listener: (error: Error) => void): this;
+
+  /**
+   * Emitted when the page opens a new tab or window. This event is emitted in addition to the browserContext.on('page'), but only for popups relevant to this page.
+   * The earliest moment that page is available is when it has navigated to the initial url. For example, when opening a popup with `window.open('http://example.com')`, this event will fire when the network request to "http://example.com" is done and its response has started loading in the popup.
+   * ```js
+   * const [popup] = await Promise.all([
+   *   page.waitForEvent('popup'),
+   *   page.evaluate(() => window.open('https://example.com')),
+   * ]);
+   * console.log(await popup.evaluate('location.href'));
+   * ```
+   * 
+   * **NOTE** Use `page.waitForLoadState([state, options])` to wait until the page gets to a particular state (you should not need it in most cases).
+   */
+  addListener(event: 'popup', listener: (page: Page) => void): this;
+
+  /**
+   * Emitted when a page issues a request. The request object is read-only. In order to intercept and mutate requests, see `page.route(url, handler)` or `browserContext.route(url, handler)`.
+   */
+  addListener(event: 'request', listener: (request: Request) => void): this;
+
+  /**
+   * Emitted when a request fails, for example by timing out.
+   * 
+   * **NOTE** HTTP Error responses, such as 404 or 503, are still successful responses from HTTP standpoint, so request will complete with page.on('requestfinished') event and not with page.on('requestfailed').
+   */
+  addListener(event: 'requestfailed', listener: (request: Request) => void): this;
+
+  /**
+   * Emitted when a request finishes successfully after downloading the response body. For a successful response, the sequence of events is `request`, `response` and `requestfinished`.
+   */
+  addListener(event: 'requestfinished', listener: (request: Request) => void): this;
+
+  /**
+   * Emitted when response status and headers are received for a request. For a successful response, the sequence of events is `request`, `response` and `requestfinished`.
+   */
+  addListener(event: 'response', listener: (response: Response) => void): this;
+
+  /**
+   * Emitted when <WebSocket> request is sent.
+   */
+  addListener(event: 'websocket', listener: (webSocket: WebSocket) => void): this;
+
+  /**
+   * Emitted when a dedicated WebWorker is spawned by the page.
+   */
+  addListener(event: 'worker', listener: (worker: Worker) => void): this;
+
+  /**
+   * Emitted when the page closes.
+   */
+  removeListener(event: 'close', listener: () => void): this;
+
+  /**
+   * Emitted when JavaScript within the page calls one of console API methods, e.g. `console.log` or `console.dir`. Also emitted if the page throws an error or a warning.
+   * The arguments passed into `console.log` appear as arguments on the event handler.
+   * An example of handling `console` event:
+   * ```js
+   * page.on('console', msg => {
+   *   for (let i = 0; i < msg.args().length; ++i)
+   *     console.log(`${i}: ${msg.args()[i]}`);
+   * });
+   * page.evaluate(() => console.log('hello', 5, {foo: 'bar'}));
+   * ```
+   */
+  removeListener(event: 'console', listener: (consoleMessage: ConsoleMessage) => void): this;
+
+  /**
+   * Emitted when the page crashes. Browser pages might crash if they try to allocate too much memory. When the page crashes, ongoing and subsequent operations will throw.
+   * The most common way to deal with crashes is to catch an exception:
+   * ```js
+   * try {
+   *   // Crash might happen during a click.
+   *   await page.click('button');
+   *   // Or while waiting for an event.
+   *   await page.waitForEvent('popup');
+   * } catch (e) {
+   *   // When the page crashes, exception message contains 'crash'.
+   * }
+   * ```
+   * However, when manually listening to events, it might be useful to avoid stalling when the page crashes. In this case, handling `crash` event helps:
+   * ```js
+   * await new Promise((resolve, reject) => {
+   *   page.on('requestfinished', async request => {
+   *     if (await someProcessing(request))
+   *       resolve(request);
+   *   });
+   *   page.on('crash', error => reject(error));
+   * });
+   * ```
+   */
+  removeListener(event: 'crash', listener: () => void): this;
+
+  /**
+   * Emitted when a JavaScript dialog appears, such as `alert`, `prompt`, `confirm` or `beforeunload`. Playwright can respond to the dialog via `dialog.accept([promptText])` or `dialog.dismiss()` methods.
+   */
+  removeListener(event: 'dialog', listener: (dialog: Dialog) => void): this;
+
+  /**
+   * Emitted when the JavaScript `DOMContentLoaded` event is dispatched.
+   */
+  removeListener(event: 'domcontentloaded', listener: () => void): this;
+
+  /**
+   * Emitted when attachment download started. User can access basic file operations on downloaded content via the passed Download instance.
+   * 
+   * **NOTE** Browser context **must** be created with the `acceptDownloads` set to `true` when user needs access to the downloaded content. If `acceptDownloads` is not set or set to `false`, download events are emitted, but the actual download is not performed and user has no access to the downloaded files.
+   */
+  removeListener(event: 'download', listener: (download: Download) => void): this;
+
+  /**
+   * Emitted when a file chooser is supposed to appear, such as after clicking the  `<input type=file>`. Playwright can respond to it via setting the input files using `fileChooser.setFiles(files[, options])` that can be uploaded after that.
+   * ```js
+   * page.on('filechooser', async (fileChooser) => {
+   *   await fileChooser.setFiles('/tmp/myfile.pdf');
+   * });
+   * ```
+   */
+  removeListener(event: 'filechooser', listener: (fileChooser: FileChooser) => void): this;
+
+  /**
+   * Emitted when a frame is attached.
+   */
+  removeListener(event: 'frameattached', listener: (frame: Frame) => void): this;
+
+  /**
+   * Emitted when a frame is detached.
+   */
+  removeListener(event: 'framedetached', listener: (frame: Frame) => void): this;
+
+  /**
+   * Emitted when a frame is navigated to a new url.
+   */
+  removeListener(event: 'framenavigated', listener: (frame: Frame) => void): this;
+
+  /**
+   * Emitted when the JavaScript `load` event is dispatched.
+   */
+  removeListener(event: 'load', listener: () => void): this;
+
+  /**
+   * Emitted when an uncaught exception happens within the page.
+   */
+  removeListener(event: 'pageerror', listener: (error: Error) => void): this;
+
+  /**
+   * Emitted when the page opens a new tab or window. This event is emitted in addition to the browserContext.on('page'), but only for popups relevant to this page.
+   * The earliest moment that page is available is when it has navigated to the initial url. For example, when opening a popup with `window.open('http://example.com')`, this event will fire when the network request to "http://example.com" is done and its response has started loading in the popup.
+   * ```js
+   * const [popup] = await Promise.all([
+   *   page.waitForEvent('popup'),
+   *   page.evaluate(() => window.open('https://example.com')),
+   * ]);
+   * console.log(await popup.evaluate('location.href'));
+   * ```
+   * 
+   * **NOTE** Use `page.waitForLoadState([state, options])` to wait until the page gets to a particular state (you should not need it in most cases).
+   */
+  removeListener(event: 'popup', listener: (page: Page) => void): this;
+
+  /**
+   * Emitted when a page issues a request. The request object is read-only. In order to intercept and mutate requests, see `page.route(url, handler)` or `browserContext.route(url, handler)`.
+   */
+  removeListener(event: 'request', listener: (request: Request) => void): this;
+
+  /**
+   * Emitted when a request fails, for example by timing out.
+   * 
+   * **NOTE** HTTP Error responses, such as 404 or 503, are still successful responses from HTTP standpoint, so request will complete with page.on('requestfinished') event and not with page.on('requestfailed').
+   */
+  removeListener(event: 'requestfailed', listener: (request: Request) => void): this;
+
+  /**
+   * Emitted when a request finishes successfully after downloading the response body. For a successful response, the sequence of events is `request`, `response` and `requestfinished`.
+   */
+  removeListener(event: 'requestfinished', listener: (request: Request) => void): this;
+
+  /**
+   * Emitted when response status and headers are received for a request. For a successful response, the sequence of events is `request`, `response` and `requestfinished`.
+   */
+  removeListener(event: 'response', listener: (response: Response) => void): this;
+
+  /**
+   * Emitted when <WebSocket> request is sent.
+   */
+  removeListener(event: 'websocket', listener: (webSocket: WebSocket) => void): this;
+
+  /**
+   * Emitted when a dedicated WebWorker is spawned by the page.
+   */
+  removeListener(event: 'worker', listener: (worker: Worker) => void): this;
+
+  /**
+   * Emitted when the page closes.
+   */
+  off(event: 'close', listener: () => void): this;
+
+  /**
+   * Emitted when JavaScript within the page calls one of console API methods, e.g. `console.log` or `console.dir`. Also emitted if the page throws an error or a warning.
+   * The arguments passed into `console.log` appear as arguments on the event handler.
+   * An example of handling `console` event:
+   * ```js
+   * page.on('console', msg => {
+   *   for (let i = 0; i < msg.args().length; ++i)
+   *     console.log(`${i}: ${msg.args()[i]}`);
+   * });
+   * page.evaluate(() => console.log('hello', 5, {foo: 'bar'}));
+   * ```
+   */
+  off(event: 'console', listener: (consoleMessage: ConsoleMessage) => void): this;
+
+  /**
+   * Emitted when the page crashes. Browser pages might crash if they try to allocate too much memory. When the page crashes, ongoing and subsequent operations will throw.
+   * The most common way to deal with crashes is to catch an exception:
+   * ```js
+   * try {
+   *   // Crash might happen during a click.
+   *   await page.click('button');
+   *   // Or while waiting for an event.
+   *   await page.waitForEvent('popup');
+   * } catch (e) {
+   *   // When the page crashes, exception message contains 'crash'.
+   * }
+   * ```
+   * However, when manually listening to events, it might be useful to avoid stalling when the page crashes. In this case, handling `crash` event helps:
+   * ```js
+   * await new Promise((resolve, reject) => {
+   *   page.on('requestfinished', async request => {
+   *     if (await someProcessing(request))
+   *       resolve(request);
+   *   });
+   *   page.on('crash', error => reject(error));
+   * });
+   * ```
+   */
+  off(event: 'crash', listener: () => void): this;
+
+  /**
+   * Emitted when a JavaScript dialog appears, such as `alert`, `prompt`, `confirm` or `beforeunload`. Playwright can respond to the dialog via `dialog.accept([promptText])` or `dialog.dismiss()` methods.
+   */
+  off(event: 'dialog', listener: (dialog: Dialog) => void): this;
+
+  /**
+   * Emitted when the JavaScript `DOMContentLoaded` event is dispatched.
+   */
+  off(event: 'domcontentloaded', listener: () => void): this;
+
+  /**
+   * Emitted when attachment download started. User can access basic file operations on downloaded content via the passed Download instance.
+   * 
+   * **NOTE** Browser context **must** be created with the `acceptDownloads` set to `true` when user needs access to the downloaded content. If `acceptDownloads` is not set or set to `false`, download events are emitted, but the actual download is not performed and user has no access to the downloaded files.
+   */
+  off(event: 'download', listener: (download: Download) => void): this;
+
+  /**
+   * Emitted when a file chooser is supposed to appear, such as after clicking the  `<input type=file>`. Playwright can respond to it via setting the input files using `fileChooser.setFiles(files[, options])` that can be uploaded after that.
+   * ```js
+   * page.on('filechooser', async (fileChooser) => {
+   *   await fileChooser.setFiles('/tmp/myfile.pdf');
+   * });
+   * ```
+   */
+  off(event: 'filechooser', listener: (fileChooser: FileChooser) => void): this;
+
+  /**
+   * Emitted when a frame is attached.
+   */
+  off(event: 'frameattached', listener: (frame: Frame) => void): this;
+
+  /**
+   * Emitted when a frame is detached.
+   */
+  off(event: 'framedetached', listener: (frame: Frame) => void): this;
+
+  /**
+   * Emitted when a frame is navigated to a new url.
+   */
+  off(event: 'framenavigated', listener: (frame: Frame) => void): this;
+
+  /**
+   * Emitted when the JavaScript `load` event is dispatched.
+   */
+  off(event: 'load', listener: () => void): this;
+
+  /**
+   * Emitted when an uncaught exception happens within the page.
+   */
+  off(event: 'pageerror', listener: (error: Error) => void): this;
+
+  /**
+   * Emitted when the page opens a new tab or window. This event is emitted in addition to the browserContext.on('page'), but only for popups relevant to this page.
+   * The earliest moment that page is available is when it has navigated to the initial url. For example, when opening a popup with `window.open('http://example.com')`, this event will fire when the network request to "http://example.com" is done and its response has started loading in the popup.
+   * ```js
+   * const [popup] = await Promise.all([
+   *   page.waitForEvent('popup'),
+   *   page.evaluate(() => window.open('https://example.com')),
+   * ]);
+   * console.log(await popup.evaluate('location.href'));
+   * ```
+   * 
+   * **NOTE** Use `page.waitForLoadState([state, options])` to wait until the page gets to a particular state (you should not need it in most cases).
+   */
+  off(event: 'popup', listener: (page: Page) => void): this;
+
+  /**
+   * Emitted when a page issues a request. The request object is read-only. In order to intercept and mutate requests, see `page.route(url, handler)` or `browserContext.route(url, handler)`.
+   */
+  off(event: 'request', listener: (request: Request) => void): this;
+
+  /**
+   * Emitted when a request fails, for example by timing out.
+   * 
+   * **NOTE** HTTP Error responses, such as 404 or 503, are still successful responses from HTTP standpoint, so request will complete with page.on('requestfinished') event and not with page.on('requestfailed').
+   */
+  off(event: 'requestfailed', listener: (request: Request) => void): this;
+
+  /**
+   * Emitted when a request finishes successfully after downloading the response body. For a successful response, the sequence of events is `request`, `response` and `requestfinished`.
+   */
+  off(event: 'requestfinished', listener: (request: Request) => void): this;
+
+  /**
+   * Emitted when response status and headers are received for a request. For a successful response, the sequence of events is `request`, `response` and `requestfinished`.
+   */
+  off(event: 'response', listener: (response: Response) => void): this;
+
+  /**
+   * Emitted when <WebSocket> request is sent.
+   */
+  off(event: 'websocket', listener: (webSocket: WebSocket) => void): this;
+
+  /**
+   * Emitted when a dedicated WebWorker is spawned by the page.
+   */
+  off(event: 'worker', listener: (worker: Worker) => void): this;
+
+  accessibility: Accessibility;
+
+  /**
+   * Adds a script which would be evaluated in one of the following scenarios:
+   * 
+   * Whenever the page is navigated.
+   * Whenever the child frame is attached or navigated. In this case, the script is evaluated in the context of the newly attached frame.
+   * 
+   * The script is evaluated after the document was created but before any of its scripts were run. This is useful to amend the JavaScript environment, e.g. to seed `Math.random`.
+   * An example of overriding `Math.random` before the page loads:
+   * ```js
+   * // preload.js
+   * Math.random = () => 42;
+   * 
+   * // In your playwright script, assuming the preload.js file is in same directory
+   * const preloadFile = fs.readFileSync('./preload.js', 'utf8');
+   * await page.addInitScript(preloadFile);
+   * ```
+   * 
+   * **NOTE** The order of evaluation of multiple scripts installed via `browserContext.addInitScript(script[, arg])` and `page.addInitScript(script[, arg])` is not defined.
+   * @param script Script to be evaluated in the page.
+   * @param arg Optional argument to pass to `script` (only supported when passing a function).
+   */
+  addInitScript(script: Function|string|{
+    /**
+     * Path to the JavaScript file. If `path` is a relative path, then it is resolved relative to the current working directory.
+     */
+    path?: string;
+
+    /**
+     * Raw script content.
+     */
+    content?: string;
+  }, arg?: Serializable): Promise<void>;
+
+  /**
+   * Adds a `<script>` tag into the page with the desired url or content. Returns the added tag when the script's onload fires or when the script content was injected into frame.
+   * Shortcut for main frame's `frame.addScriptTag(params)`.
+   * @param params 
+   */
+  addScriptTag(params: {
+    /**
+     * URL of a script to be added.
+     */
+    url?: string;
+
+    /**
+     * Path to the JavaScript file to be injected into frame. If `path` is a relative path, then it is resolved relative to the current working directory.
+     */
+    path?: string;
+
+    /**
+     * Raw JavaScript content to be injected into frame.
+     */
+    content?: string;
+
+    /**
+     * Script type. Use 'module' in order to load a Javascript ES6 module. See script for more details.
+     */
+    type?: string;
+  }): Promise<ElementHandle>;
+
+  /**
+   * Adds a `<link rel="stylesheet">` tag into the page with the desired url or a `<style type="text/css">` tag with the content. Returns the added tag when the stylesheet's onload fires or when the CSS content was injected into frame.
+   * Shortcut for main frame's `frame.addStyleTag(params)`.
+   * @param params 
+   */
+  addStyleTag(params: {
+    /**
+     * URL of the `<link>` tag.
+     */
+    url?: string;
+
+    /**
+     * Path to the CSS file to be injected into frame. If `path` is a relative path, then it is resolved relative to the current working directory.
+     */
+    path?: string;
+
+    /**
+     * Raw CSS content to be injected into frame.
+     */
+    content?: string;
+  }): Promise<ElementHandle>;
+
+  /**
+   * Brings page to front (activates tab).
+   */
+  bringToFront(): Promise<void>;
+
+  /**
+   * This method checks an element matching `selector` by performing the following steps:
+   * 
+   * Find an element match matching `selector`. If there is none, wait until a matching element is attached to the DOM.
+   * Ensure that matched element is a checkbox or a radio input. If not, this method rejects. If the element is already checked, this method returns immediately.
+   * Wait for actionability checks on the matched element, unless `force` option is set. If the element is detached during the checks, the whole action is retried.
+   * Scroll the element into view if needed.
+   * Use page.mouse to click in the center of the element.
+   * Wait for initiated navigations to either succeed or fail, unless `noWaitAfter` option is set.
+   * Ensure that the element is now checked. If not, this method rejects.
+   * 
+   * When all steps combined have not finished during the specified `timeout`, this method rejects with a TimeoutError. Passing zero timeout disables this.
+   * Shortcut for main frame's `frame.check(selector[, options])`.
+   * @param selector A selector to search for element. If there are multiple elements satisfying the selector, the first will be used. See working with selectors for more details.
+   * @param options 
+   */
+  check(selector: string, options?: {
+    /**
+     * Whether to bypass the actionability checks. Defaults to `false`.
+     */
+    force?: boolean;
+
+    /**
+     * Actions that initiate navigations are waiting for these navigations to happen and for pages to start loading. You can opt out of waiting via setting this flag. You would only need this option in the exceptional cases such as navigating to inaccessible pages. Defaults to `false`.
+     */
+    noWaitAfter?: boolean;
+
+    /**
+     * Maximum time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+  }): Promise<void>;
+
+  /**
+   * This method clicks an element matching `selector` by performing the following steps:
+   * 
+   * Find an element match matching `selector`. If there is none, wait until a matching element is attached to the DOM.
+   * Wait for actionability checks on the matched element, unless `force` option is set. If the element is detached during the checks, the whole action is retried.
+   * Scroll the element into view if needed.
+   * Use page.mouse to click in the center of the element, or the specified `position`.
+   * Wait for initiated navigations to either succeed or fail, unless `noWaitAfter` option is set.
+   * 
+   * When all steps combined have not finished during the specified `timeout`, this method rejects with a TimeoutError. Passing zero timeout disables this.
+   * Shortcut for main frame's `frame.click(selector[, options])`.
+   * @param selector A selector to search for element. If there are multiple elements satisfying the selector, the first will be used. See working with selectors for more details.
+   * @param options 
+   */
+  click(selector: string, options?: {
+    /**
+     * Defaults to `left`.
+     */
+    button?: "left"|"middle"|"right";
+
+    /**
+     * defaults to 1. See UIEvent.detail.
+     */
+    clickCount?: number;
+
+    /**
+     * Time to wait between `mousedown` and `mouseup` in milliseconds. Defaults to 0.
+     */
+    delay?: number;
+
+    /**
+     * Whether to bypass the actionability checks. Defaults to `false`.
+     */
+    force?: boolean;
+
+    /**
+     * Modifier keys to press. Ensures that only these modifiers are pressed during the operation, and then restores current modifiers back. If not specified, currently pressed modifiers are used.
+     */
+    modifiers?: Array<"Alt"|"Control"|"Meta"|"Shift">;
+
+    /**
+     * Actions that initiate navigations are waiting for these navigations to happen and for pages to start loading. You can opt out of waiting via setting this flag. You would only need this option in the exceptional cases such as navigating to inaccessible pages. Defaults to `false`.
+     */
+    noWaitAfter?: boolean;
+
+    /**
+     * A point to use relative to the top-left corner of element padding box. If not specified, uses some visible point of the element.
+     */
+    position?: {
+      x: number;
+
+      y: number;
+    };
+
+    /**
+     * Maximum time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+  }): Promise<void>;
+
+  /**
+   * If `runBeforeUnload` is `false`, does not run any unload handlers and waits for the page to be closed. If `runBeforeUnload` is `true` the method will run unload handlers, but will **not** wait for the page to close.
+   * By default, `page.close()` **does not** run `beforeunload` handlers.
+   * 
+   * **NOTE** if `runBeforeUnload` is passed as true, a `beforeunload` dialog might be summoned
+   * and should be handled manually via page.on('dialog') event.
+   * @param options 
+   */
+  close(options?: {
+    /**
+     * Defaults to `false`. Whether to run the before unload page handlers.
+     */
+    runBeforeUnload?: boolean;
+  }): Promise<void>;
+
+  /**
+   * Gets the full HTML contents of the page, including the doctype.
+   */
+  content(): Promise<string>;
+
+  /**
+   * Get the browser context that the page belongs to.
+   */
+  context(): BrowserContext;
+
+  /**
+   * Browser-specific Coverage implementation, only available for Chromium atm. See ChromiumCoverage for more details.
+   */
+  coverage: null|ChromiumCoverage;
+
+  /**
+   * This method double clicks an element matching `selector` by performing the following steps:
+   * 
+   * Find an element match matching `selector`. If there is none, wait until a matching element is attached to the DOM.
+   * Wait for actionability checks on the matched element, unless `force` option is set. If the element is detached during the checks, the whole action is retried.
+   * Scroll the element into view if needed.
+   * Use page.mouse to double click in the center of the element, or the specified `position`.
+   * Wait for initiated navigations to either succeed or fail, unless `noWaitAfter` option is set. Note that if the first click of the `dblclick()` triggers a navigation event, this method will reject.
+   * 
+   * When all steps combined have not finished during the specified `timeout`, this method rejects with a TimeoutError. Passing zero timeout disables this.
+   * 
+   * **NOTE** `page.dblclick()` dispatches two `click` events and a single `dblclick` event.
+   * 
+   * Shortcut for main frame's `frame.dblclick(selector[, options])`.
+   * @param selector A selector to search for element. If there are multiple elements satisfying the selector, the first will be used. See working with selectors for more details.
+   * @param options 
+   */
+  dblclick(selector: string, options?: {
+    /**
+     * Defaults to `left`.
+     */
+    button?: "left"|"middle"|"right";
+
+    /**
+     * Time to wait between `mousedown` and `mouseup` in milliseconds. Defaults to 0.
+     */
+    delay?: number;
+
+    /**
+     * Whether to bypass the actionability checks. Defaults to `false`.
+     */
+    force?: boolean;
+
+    /**
+     * Modifier keys to press. Ensures that only these modifiers are pressed during the operation, and then restores current modifiers back. If not specified, currently pressed modifiers are used.
+     */
+    modifiers?: Array<"Alt"|"Control"|"Meta"|"Shift">;
+
+    /**
+     * Actions that initiate navigations are waiting for these navigations to happen and for pages to start loading. You can opt out of waiting via setting this flag. You would only need this option in the exceptional cases such as navigating to inaccessible pages. Defaults to `false`.
+     */
+    noWaitAfter?: boolean;
+
+    /**
+     * A point to use relative to the top-left corner of element padding box. If not specified, uses some visible point of the element.
+     */
+    position?: {
+      x: number;
+
+      y: number;
+    };
+
+    /**
+     * Maximum time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+  }): Promise<void>;
+
+  /**
+   * The snippet below dispatches the `click` event on the element. Regardless of the visibility state of the elment, `click` is dispatched. This is equivalend to calling element.click().
+   * ```js
+   * await page.dispatchEvent('button#submit', 'click');
+   * ```
+   * Under the hood, it creates an instance of an event based on the given `type`, initializes it with `eventInit` properties and dispatches it on the element. Events are `composed`, `cancelable` and bubble by default.
+   * Since `eventInit` is event-specific, please refer to the events documentation for the lists of initial properties:
+   * 
+   * DragEvent
+   * FocusEvent
+   * KeyboardEvent
+   * MouseEvent
+   * PointerEvent
+   * TouchEvent
+   * Event
+   * 
+   * You can also specify `JSHandle` as the property value if you want live objects to be passed into the event:
+   * ```js
+   * // Note you can only create DataTransfer in Chromium and Firefox
+   * const dataTransfer = await page.evaluateHandle(() => new DataTransfer());
+   * await page.dispatchEvent('#source', 'dragstart', { dataTransfer });
+   * ```
+   * @param selector A selector to search for element. If there are multiple elements satisfying the selector, the first will be used. See working with selectors for more details.
+   * @param type DOM event type: `"click"`, `"dragstart"`, etc.
+   * @param eventInit Optional event-specific initialization properties.
+   * @param options 
+   */
+  dispatchEvent(selector: string, type: string, eventInit?: EvaluationArgument, options?: {
+    /**
+     * Maximum time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+  }): Promise<void>;
+
+  /**
+   * ```js
+   * await page.evaluate(() => matchMedia('screen').matches);
+   * // → true
+   * await page.evaluate(() => matchMedia('print').matches);
+   * // → false
+   * 
+   * await page.emulateMedia({ media: 'print' });
+   * await page.evaluate(() => matchMedia('screen').matches);
+   * // → false
+   * await page.evaluate(() => matchMedia('print').matches);
+   * // → true
+   * 
+   * await page.emulateMedia({});
+   * await page.evaluate(() => matchMedia('screen').matches);
+   * // → true
+   * await page.evaluate(() => matchMedia('print').matches);
+   * // → false
+   * ```
+   * ```js
+   * await page.emulateMedia({ colorScheme: 'dark' });
+   * await page.evaluate(() => matchMedia('(prefers-color-scheme: dark)').matches);
+   * // → true
+   * await page.evaluate(() => matchMedia('(prefers-color-scheme: light)').matches);
+   * // → false
+   * await page.evaluate(() => matchMedia('(prefers-color-scheme: no-preference)').matches);
+   * // → false
+   * ```
+   * @param params 
+   */
+  emulateMedia(params: {
+    /**
+     * Changes the CSS media type of the page. The only allowed values are `'screen'`, `'print'` and `null`. Passing `null` disables CSS media emulation. Omitting `media` or passing `undefined` does not change the emulated value.
+     */
+    media?: null|"print"|"screen";
+
+    /**
+     * Emulates `'prefers-colors-scheme'` media feature, supported values are `'light'`, `'dark'`, `'no-preference'`. Passing `null` disables color scheme emulation. Omitting `colorScheme` or passing `undefined` does not change the emulated value.
+     */
+    colorScheme?: null|"dark"|"light"|"no-preference";
+  }): Promise<void>;
+
+  /**
+   * The method adds a function called `name` on the `window` object of every frame in the page. When called, the function executes `playwrightFunction` and returns a Promise which resolves to the return value of `playwrightFunction`.
+   * If the `playwrightFunction` returns a Promise, it will be awaited.
+   * See `browserContext.exposeFunction(name, playwrightFunction)` for context-wide exposed function.
+   * 
+   * **NOTE** Functions installed via `page.exposeFunction` survive navigations.
+   * 
+   * An example of adding an `md5` function to the page:
+   * ```js
+   * const { webkit } = require('playwright');  // Or 'chromium' or 'firefox'.
+   * const crypto = require('crypto');
+   * 
+   * (async () => {
+   *   const browser = await webkit.launch({ headless: false });
+   *   const page = await browser.newPage();
+   *   await page.exposeFunction('md5', text => crypto.createHash('md5').update(text).digest('hex'));
+   *   await page.setContent(`
+   *     <script>
+   *       async function onClick() {
+   *         document.querySelector('div').textContent = await window.md5('PLAYWRIGHT');
+   *       }
+   *     </script>
+   *     <button onclick="onClick()">Click me</button>
+   *     <div></div>
+   *   `);
+   *   await page.click('button');
+   * })();
+   * ```
+   * An example of adding a `window.readfile` function to the page:
+   * ```js
+   * const { chromium } = require('playwright');  // Or 'firefox' or 'webkit'.
+   * const fs = require('fs');
+   * 
+   * (async () => {
+   *   const browser = await chromium.launch();
+   *   const page = await browser.newPage();
+   *   page.on('console', msg => console.log(msg.text()));
+   *   await page.exposeFunction('readfile', async filePath => {
+   *     return new Promise((resolve, reject) => {
+   *       fs.readFile(filePath, 'utf8', (err, text) => {
+   *         if (err)
+   *           reject(err);
+   *         else
+   *           resolve(text);
+   *       });
+   *     });
+   *   });
+   *   await page.evaluate(async () => {
+   *     // use window.readfile to read contents of a file
+   *     const content = await window.readfile('/etc/hosts');
+   *     console.log(content);
+   *   });
+   *   await browser.close();
+   * })();
+   * ```
+   * @param name Name of the function on the window object
+   * @param playwrightFunction Callback function which will be called in Playwright's context.
+   */
+  exposeFunction(name: string, playwrightFunction: Function): Promise<void>;
+
+  /**
+   * This method waits for an element matching `selector`, waits for actionability checks, focuses the element, fills it and triggers an `input` event after filling. If the element matching `selector` is not an `<input>`, `<textarea>` or `[contenteditable]` element, this method throws an error. Note that you can pass an empty string to clear the input field.
+   * To send fine-grained keyboard events, use `page.type(selector, text[, options])`.
+   * Shortcut for main frame's `frame.fill(selector, value[, options])`
+   * @param selector A selector to search for element. If there are multiple elements satisfying the selector, the first will be used. See working with selectors for more details.
+   * @param value Value to fill for the `<input>`, `<textarea>` or `[contenteditable]` element.
+   * @param options 
+   */
+  fill(selector: string, value: string, options?: {
+    /**
+     * Actions that initiate navigations are waiting for these navigations to happen and for pages to start loading. You can opt out of waiting via setting this flag. You would only need this option in the exceptional cases such as navigating to inaccessible pages. Defaults to `false`.
+     */
+    noWaitAfter?: boolean;
+
+    /**
+     * Maximum time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+  }): Promise<void>;
+
+  /**
+   * This method fetches an element with `selector` and focuses it. If there's no element matching `selector`, the method waits until a matching element appears in the DOM.
+   * Shortcut for main frame's `frame.focus(selector[, options])`.
+   * @param selector A selector to search for element. If there are multiple elements satisfying the selector, the first will be used. See working with selectors for more details.
+   * @param options 
+   */
+  focus(selector: string, options?: {
+    /**
+     * Maximum time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+  }): Promise<void>;
+
+  /**
+   * Returns frame matching the specified criteria. Either `name` or `url` must be specified.
+   * ```js
+   * const frame = page.frame('frame-name');
+   * ```
+   * ```js
+   * const frame = page.frame({ url: /.*domain.*\/ });
+   * ```
+   * @param frameSelector Frame name or other frame lookup options.
+   */
+  frame(frameSelector: string|{
+    /**
+     * frame name specified in the `iframe`'s `name` attribute
+     */
+    name?: string;
+
+    /**
+     * A glob pattern, regex pattern or predicate receiving frame's `url` as a URL object.
+     */
+    url?: string|RegExp|Function;
+  }): null|Frame;
+
+  /**
+   * An array of all frames attached to the page.
+   */
+  frames(): Array<Frame>;
+
+  /**
+   * Returns element attribute value.
+   * @param selector A selector to search for element. If there are multiple elements satisfying the selector, the first will be used. See working with selectors for more details.
+   * @param name Attribute name to get the value for.
+   * @param options 
+   */
+  getAttribute(selector: string, name: string, options?: {
+    /**
+     * Maximum time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+  }): Promise<null|string>;
+
+  /**
+   * Returns the main resource response. In case of multiple redirects, the navigation will resolve with the response of the last redirect. If can not go back, returns `null`.
+   * Navigate to the previous page in history.
+   * @param options 
+   */
+  goBack(options?: {
+    /**
+     * Maximum operation time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultNavigationTimeout(timeout)`, `browserContext.setDefaultTimeout(timeout)`, `page.setDefaultNavigationTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+
+    /**
+     * When to consider operation succeeded, defaults to `load`. Events can be either:
+     *  - `'domcontentloaded'` - consider operation to be finished when the `DOMContentLoaded` event is fired.
+     *  - `'load'` - consider operation to be finished when the `load` event is fired.
+     *  - `'networkidle'` - consider operation to be finished when there are no network connections for at least `500` ms.
+     */
+    waitUntil?: "domcontentloaded"|"load"|"networkidle";
+  }): Promise<null|Response>;
+
+  /**
+   * Returns the main resource response. In case of multiple redirects, the navigation will resolve with the response of the last redirect. If can not go forward, returns `null`.
+   * Navigate to the next page in history.
+   * @param options 
+   */
+  goForward(options?: {
+    /**
+     * Maximum operation time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultNavigationTimeout(timeout)`, `browserContext.setDefaultTimeout(timeout)`, `page.setDefaultNavigationTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+
+    /**
+     * When to consider operation succeeded, defaults to `load`. Events can be either:
+     *  - `'domcontentloaded'` - consider operation to be finished when the `DOMContentLoaded` event is fired.
+     *  - `'load'` - consider operation to be finished when the `load` event is fired.
+     *  - `'networkidle'` - consider operation to be finished when there are no network connections for at least `500` ms.
+     */
+    waitUntil?: "domcontentloaded"|"load"|"networkidle";
+  }): Promise<null|Response>;
+
+  /**
+   * Returns the main resource response. In case of multiple redirects, the navigation will resolve with the response of the last redirect.
+   * `page.goto` will throw an error if:
+   * 
+   * there's an SSL error (e.g. in case of self-signed certificates).
+   * target URL is invalid.
+   * the `timeout` is exceeded during navigation.
+   * the remote server does not respond or is unreachable.
+   * the main resource failed to load.
+   * 
+   * `page.goto` will not throw an error when any valid HTTP status code is returned by the remote server, including 404 "Not Found" and 500 "Internal Server Error".  The status code for such responses can be retrieved by calling `response.status()`.
+   * 
+   * **NOTE** `page.goto` either throws an error or returns a main resource response. The only exceptions are navigation to `about:blank` or navigation to the same URL with a different hash, which would succeed and return `null`.
+   * **NOTE** Headless mode doesn't support navigation to a PDF document. See the upstream issue.
+   * 
+   * Shortcut for main frame's `frame.goto(url[, options])`
+   * @param url URL to navigate page to. The url should include scheme, e.g. `https://`.
+   * @param options 
+   */
+  goto(url: string, options?: {
+    /**
+     * Referer header value. If provided it will take preference over the referer header value set by `page.setExtraHTTPHeaders(headers)`.
+     */
+    referer?: string;
+
+    /**
+     * Maximum operation time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultNavigationTimeout(timeout)`, `browserContext.setDefaultTimeout(timeout)`, `page.setDefaultNavigationTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+
+    /**
+     * When to consider operation succeeded, defaults to `load`. Events can be either:
+     *  - `'domcontentloaded'` - consider operation to be finished when the `DOMContentLoaded` event is fired.
+     *  - `'load'` - consider operation to be finished when the `load` event is fired.
+     *  - `'networkidle'` - consider operation to be finished when there are no network connections for at least `500` ms.
+     */
+    waitUntil?: "domcontentloaded"|"load"|"networkidle";
+  }): Promise<null|Response>;
+
+  /**
+   * This method hovers over an element matching `selector` by performing the following steps:
+   * 
+   * Find an element match matching `selector`. If there is none, wait until a matching element is attached to the DOM.
+   * Wait for actionability checks on the matched element, unless `force` option is set. If the element is detached during the checks, the whole action is retried.
+   * Scroll the element into view if needed.
+   * Use page.mouse to hover over the center of the element, or the specified `position`.
+   * Wait for initiated navigations to either succeed or fail, unless `noWaitAfter` option is set.
+   * 
+   * When all steps combined have not finished during the specified `timeout`, this method rejects with a TimeoutError. Passing zero timeout disables this.
+   * Shortcut for main frame's `frame.hover(selector[, options])`.
+   * @param selector A selector to search for element. If there are multiple elements satisfying the selector, the first will be used. See working with selectors for more details.
+   * @param options 
+   */
+  hover(selector: string, options?: {
+    /**
+     * Whether to bypass the actionability checks. Defaults to `false`.
+     */
+    force?: boolean;
+
+    /**
+     * Modifier keys to press. Ensures that only these modifiers are pressed during the operation, and then restores current modifiers back. If not specified, currently pressed modifiers are used.
+     */
+    modifiers?: Array<"Alt"|"Control"|"Meta"|"Shift">;
+
+    /**
+     * A point to use relative to the top-left corner of element padding box. If not specified, uses some visible point of the element.
+     */
+    position?: {
+      x: number;
+
+      y: number;
+    };
+
+    /**
+     * Maximum time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+  }): Promise<void>;
+
+  /**
+   * Returns `element.innerHTML`.
+   * @param selector A selector to search for element. If there are multiple elements satisfying the selector, the first will be used. See working with selectors for more details.
+   * @param options 
+   */
+  innerHTML(selector: string, options?: {
+    /**
+     * Maximum time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+  }): Promise<string>;
+
+  /**
+   * Returns `element.innerText`.
+   * @param selector A selector to search for element. If there are multiple elements satisfying the selector, the first will be used. See working with selectors for more details.
+   * @param options 
+   */
+  innerText(selector: string, options?: {
+    /**
+     * Maximum time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+  }): Promise<string>;
+
+  /**
+   * Indicates that the page has been closed.
+   */
+  isClosed(): boolean;
+
+  keyboard: Keyboard;
+
+  /**
+   * The page's main frame. Page is guaranteed to have a main frame which persists during navigations.
+   */
+  mainFrame(): Frame;
+
+  mouse: Mouse;
+
+  /**
+   * Returns the opener for popup pages and `null` for others. If the opener has been closed already the returns `null`.
+   */
+  opener(): Promise<null|Page>;
+
+  /**
+   * Returns the PDF buffer.
+   * 
+   * **NOTE** Generating a pdf is currently only supported in Chromium headless.
+   * 
+   * `page.pdf()` generates a pdf of the page with `print` css media. To generate a pdf with `screen` media, call `page.emulateMedia(params)` before calling `page.pdf()`:
+   * 
+   * **NOTE** By default, `page.pdf()` generates a pdf with modified colors for printing. Use the `-webkit-print-color-adjust` property to force rendering of exact colors.
+   * 
+   * ```js
+   * // Generates a PDF with 'screen' media type.
+   * await page.emulateMedia({media: 'screen'});
+   * await page.pdf({path: 'page.pdf'});
+   * ```
+   * The `width`, `height`, and `margin` options accept values labeled with units. Unlabeled values are treated as pixels.
+   * A few examples:
+   * 
+   * `page.pdf({width: 100})` - prints with width set to 100 pixels
+   * `page.pdf({width: '100px'})` - prints with width set to 100 pixels
+   * `page.pdf({width: '10cm'})` - prints with width set to 10 centimeters.
+   * 
+   * All possible units are:
+   * 
+   * `px` - pixel
+   * `in` - inch
+   * `cm` - centimeter
+   * `mm` - millimeter
+   * 
+   * The `format` options are:
+   * 
+   * `Letter`: 8.5in x 11in
+   * `Legal`: 8.5in x 14in
+   * `Tabloid`: 11in x 17in
+   * `Ledger`: 17in x 11in
+   * `A0`: 33.1in x 46.8in
+   * `A1`: 23.4in x 33.1in
+   * `A2`: 16.54in x 23.4in
+   * `A3`: 11.7in x 16.54in
+   * `A4`: 8.27in x 11.7in
+   * `A5`: 5.83in x 8.27in
+   * `A6`: 4.13in x 5.83in
+   * 
+   * 
+   * **NOTE** `headerTemplate` and `footerTemplate` markup have the following limitations:
+   * 
+   * Script tags inside templates are not evaluated.
+   * Page styles are not visible inside templates.
+   * @param options 
+   */
+  pdf(options?: {
+    /**
+     * Display header and footer. Defaults to `false`.
+     */
+    displayHeaderFooter?: boolean;
+
+    /**
+     * HTML template for the print footer. Should use the same format as the `headerTemplate`.
+     */
+    footerTemplate?: string;
+
+    /**
+     * Paper format. If set, takes priority over `width` or `height` options. Defaults to 'Letter'.
+     */
+    format?: string;
+
+    /**
+     * HTML template for the print header. Should be valid HTML markup with following classes used to inject printing values into them:
+     *  - `'date'` formatted print date
+     *  - `'title'` document title
+     *  - `'url'` document location
+     *  - `'pageNumber'` current page number
+     *  - `'totalPages'` total pages in the document
+     */
+    headerTemplate?: string;
+
+    /**
+     * Paper height, accepts values labeled with units.
+     */
+    height?: string|number;
+
+    /**
+     * Paper orientation. Defaults to `false`.
+     */
+    landscape?: boolean;
+
+    /**
+     * Paper margins, defaults to none.
+     */
+    margin?: {
+      /**
+       * Top margin, accepts values labeled with units. Defaults to `0`.
+       */
+      top?: string|number;
+
+      /**
+       * Right margin, accepts values labeled with units. Defaults to `0`.
+       */
+      right?: string|number;
+
+      /**
+       * Bottom margin, accepts values labeled with units. Defaults to `0`.
+       */
+      bottom?: string|number;
+
+      /**
+       * Left margin, accepts values labeled with units. Defaults to `0`.
+       */
+      left?: string|number;
+    };
+
+    /**
+     * Paper ranges to print, e.g., '1-5, 8, 11-13'. Defaults to the empty string, which means print all pages.
+     */
+    pageRanges?: string;
+
+    /**
+     * The file path to save the PDF to. If `path` is a relative path, then it is resolved relative to the current working directory. If no path is provided, the PDF won't be saved to the disk.
+     */
+    path?: string;
+
+    /**
+     * Give any CSS `@page` size declared in the page priority over what is declared in `width` and `height` or `format` options. Defaults to `false`, which will scale the content to fit the paper size.
+     */
+    preferCSSPageSize?: boolean;
+
+    /**
+     * Print background graphics. Defaults to `false`.
+     */
+    printBackground?: boolean;
+
+    /**
+     * Scale of the webpage rendering. Defaults to `1`. Scale amount must be between 0.1 and 2.
+     */
+    scale?: number;
+
+    /**
+     * Paper width, accepts values labeled with units.
+     */
+    width?: string|number;
+  }): Promise<Buffer>;
+
+  /**
+   * Focuses the element, and then uses `keyboard.down(key)` and `keyboard.up(key)`.
+   * `key` can specify the intended keyboardEvent.key value or a single character to generate the text for. A superset of the `key` values can be found here. Examples of the keys are:
+   * `F1` - `F12`, `Digit0`- `Digit9`, `KeyA`- `KeyZ`, `Backquote`, `Minus`, `Equal`, `Backslash`, `Backspace`, `Tab`, `Delete`, `Escape`, `ArrowDown`, `End`, `Enter`, `Home`, `Insert`, `PageDown`, `PageUp`, `ArrowRight`, `ArrowUp`, etc.
+   * Following modification shortcuts are also suported: `Shift`, `Control`, `Alt`, `Meta`, `ShiftLeft`.
+   * Holding down `Shift` will type the text that corresponds to the `key` in the upper case.
+   * If `key` is a single character, it is case-sensitive, so the values `a` and `A` will generate different respective texts.
+   * Shortcuts such as `key: "Control+o"` or `key: "Control+Shift+T"` are supported as well. When speficied with the modifier, modifier is pressed and being held while the subsequent key is being pressed.
+   * ```js
+   * const page = await browser.newPage();
+   * await page.goto('https://keycode.info');
+   * await page.press('body', 'A');
+   * await page.screenshot({ path: 'A.png' });
+   * await page.press('body', 'ArrowLeft');
+   * await page.screenshot({ path: 'ArrowLeft.png' });
+   * await page.press('body', 'Shift+O');
+   * await page.screenshot({ path: 'O.png' });
+   * await browser.close();
+   * ```
+   * @param selector A selector to search for element. If there are multiple elements satisfying the selector, the first will be used. See working with selectors for more details.
+   * @param key Name of the key to press or a character to generate, such as `ArrowLeft` or `a`.
+   * @param options 
+   */
+  press(selector: string, key: string, options?: {
+    /**
+     * Time to wait between `keydown` and `keyup` in milliseconds. Defaults to 0.
+     */
+    delay?: number;
+
+    /**
+     * Actions that initiate navigations are waiting for these navigations to happen and for pages to start loading. You can opt out of waiting via setting this flag. You would only need this option in the exceptional cases such as navigating to inaccessible pages. Defaults to `false`.
+     */
+    noWaitAfter?: boolean;
+
+    /**
+     * Maximum time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+  }): Promise<void>;
+
+  /**
+   * Returns the main resource response. In case of multiple redirects, the navigation will resolve with the response of the last redirect.
+   * @param options 
+   */
+  reload(options?: {
+    /**
+     * Maximum operation time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultNavigationTimeout(timeout)`, `browserContext.setDefaultTimeout(timeout)`, `page.setDefaultNavigationTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+
+    /**
+     * When to consider operation succeeded, defaults to `load`. Events can be either:
+     *  - `'domcontentloaded'` - consider operation to be finished when the `DOMContentLoaded` event is fired.
+     *  - `'load'` - consider operation to be finished when the `load` event is fired.
+     *  - `'networkidle'` - consider operation to be finished when there are no network connections for at least `500` ms.
+     */
+    waitUntil?: "domcontentloaded"|"load"|"networkidle";
+  }): Promise<null|Response>;
+
+  /**
+   * Routing provides the capability to modify network requests that are made by a page.
+   * Once routing is enabled, every request matching the url pattern will stall unless it's continued, fulfilled or aborted.
+   * 
+   * **NOTE** The handler will only be called for the first url if the response is a redirect.
+   * 
+   * An example of a naïve handler that aborts all image requests:
+   * ```js
+   * const page = await browser.newPage();
+   * await page.route('**\/*.{png,jpg,jpeg}', route => route.abort());
+   * await page.goto('https://example.com');
+   * await browser.close();
+   * ```
+   * or the same snippet using a regex pattern instead:
+   * ```js
+   * const page = await browser.newPage();
+   * await page.route(/(\.png$)|(\.jpg$)/, route => route.abort());
+   * await page.goto('https://example.com');
+   * await browser.close();
+   * ```
+   * Page routes take precedence over browser context routes (set up with `browserContext.route(url, handler)`) when request matches both handlers.
+   * 
+   * **NOTE** Enabling routing disables http cache.
+   * @param url A glob pattern, regex pattern or predicate receiving URL to match while routing.
+   * @param handler handler function to route the request.
+   */
+  route(url: string|RegExp|((url: URL) => boolean), handler: ((route: Route, request: Request) => void)): Promise<void>;
+
+  /**
+   * Returns the buffer with the captured screenshot.
+   * 
+   * **NOTE** Screenshots take at least 1/6 second on Chromium OS X and Chromium Windows. See https://crbug.com/741689 for discussion.
+   * @param options 
+   */
+  screenshot(options?: {
+    /**
+     * An object which specifies clipping of the resulting image. Should have the following fields:
+     */
+    clip?: {
+      /**
+       * x-coordinate of top-left corner of clip area
+       */
+      x: number;
+
+      /**
+       * y-coordinate of top-left corner of clip area
+       */
+      y: number;
+
+      /**
+       * width of clipping area
+       */
+      width: number;
+
+      /**
+       * height of clipping area
+       */
+      height: number;
+    };
+
+    /**
+     * When true, takes a screenshot of the full scrollable page, instead of the currently visible viewport. Defaults to `false`.
+     */
+    fullPage?: boolean;
+
+    /**
+     * Hides default white background and allows capturing screenshots with transparency. Not applicable to `jpeg` images. Defaults to `false`.
+     */
+    omitBackground?: boolean;
+
+    /**
+     * The file path to save the image to. The screenshot type will be inferred from file extension. If `path` is a relative path, then it is resolved relative to the current working directory. If no path is provided, the image won't be saved to the disk.
+     */
+    path?: string;
+
+    /**
+     * The quality of the image, between 0-100. Not applicable to `png` images.
+     */
+    quality?: number;
+
+    /**
+     * Maximum time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+
+    /**
+     * Specify screenshot type, defaults to `png`.
+     */
+    type?: "jpeg"|"png";
+  }): Promise<Buffer>;
+
+  /**
+   * Returns the array of option values that have been successfully selected.
+   * Triggers a `change` and `input` event once all the provided options have been selected. If there's no `<select>` element matching `selector`, the method throws an error.
+   * ```js
+   * // single selection matching the value
+   * page.selectOption('select#colors', 'blue');
+   * 
+   * // single selection matching both the value and the label
+   * page.selectOption('select#colors', { label: 'Blue' });
+   * 
+   * // multiple selection
+   * page.selectOption('select#colors', ['red', 'green', 'blue']);
+   * 
+   * ```
+   * Shortcut for main frame's `frame.selectOption(selector, values[, options])`
+   * @param selector A selector to search for element. If there are multiple elements satisfying the selector, the first will be used. See working with selectors for more details.
+   * @param values Options to select. If the `<select>` has the `multiple` attribute, all matching options are selected, otherwise only the first option matching one of the passed options is selected. String values are equivalent to `{value:'string'}`. Option is considered matching if all specified properties match.
+   * @param options 
+   */
+  selectOption(selector: string, values: null|string|ElementHandle|Array<string>|{
+    /**
+     * Matches by `option.value`.
+     */
+    value?: string;
+
+    /**
+     * Matches by `option.label`.
+     */
+    label?: string;
+
+    /**
+     * Matches by the index.
+     */
+    index?: number;
+  }|Array<ElementHandle>|Array<{
+    /**
+     * Matches by `option.value`.
+     */
+    value?: string;
+
+    /**
+     * Matches by `option.label`.
+     */
+    label?: string;
+
+    /**
+     * Matches by the index.
+     */
+    index?: number;
+  }>, options?: {
+    /**
+     * Actions that initiate navigations are waiting for these navigations to happen and for pages to start loading. You can opt out of waiting via setting this flag. You would only need this option in the exceptional cases such as navigating to inaccessible pages. Defaults to `false`.
+     */
+    noWaitAfter?: boolean;
+
+    /**
+     * Maximum time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+  }): Promise<Array<string>>;
+
+  /**
+   * @param html HTML markup to assign to the page.
+   * @param options 
+   */
+  setContent(html: string, options?: {
+    /**
+     * Maximum operation time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultNavigationTimeout(timeout)`, `browserContext.setDefaultTimeout(timeout)`, `page.setDefaultNavigationTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+
+    /**
+     * When to consider operation succeeded, defaults to `load`. Events can be either:
+     *  - `'domcontentloaded'` - consider operation to be finished when the `DOMContentLoaded` event is fired.
+     *  - `'load'` - consider operation to be finished when the `load` event is fired.
+     *  - `'networkidle'` - consider operation to be finished when there are no network connections for at least `500` ms.
+     */
+    waitUntil?: "domcontentloaded"|"load"|"networkidle";
+  }): Promise<void>;
+
+  /**
+   * This setting will change the default maximum navigation time for the following methods and related shortcuts:
+   * 
+   * `page.goBack([options])`
+   * `page.goForward([options])`
+   * `page.goto(url[, options])`
+   * `page.reload([options])`
+   * `page.setContent(html[, options])`
+   * `page.waitForNavigation([options])`
+   * 
+   * 
+   * **NOTE** `page.setDefaultNavigationTimeout(timeout)` takes priority over `page.setDefaultTimeout(timeout)`, `browserContext.setDefaultTimeout(timeout)` and `browserContext.setDefaultNavigationTimeout(timeout)`.
+   * @param timeout Maximum navigation time in milliseconds
+   */
+  setDefaultNavigationTimeout(timeout: number): void;
+
+  /**
+   * This setting will change the default maximum time for all the methods accepting `timeout` option.
+   * 
+   * **NOTE** `page.setDefaultNavigationTimeout(timeout)` takes priority over `page.setDefaultTimeout(timeout)`.
+   * @param timeout Maximum time in milliseconds
+   */
+  setDefaultTimeout(timeout: number): void;
+
+  /**
+   * The extra HTTP headers will be sent with every request the page initiates.
+   * 
+   * **NOTE** page.setExtraHTTPHeaders does not guarantee the order of headers in the outgoing requests.
+   * @param headers An object containing additional HTTP headers to be sent with every request. All header values must be strings.
+   */
+  setExtraHTTPHeaders(headers: { [key: string]: string; }): Promise<void>;
+
+  /**
+   * This method expects `selector` to point to an input element.
+   * Sets the value of the file input to these file paths or files. If some of the `filePaths` are relative paths, then they are resolved relative to the the current working directory. For empty array, clears the selected files.
+   * @param selector A selector to search for element. If there are multiple elements satisfying the selector, the first will be used. See working with selectors for more details.
+   * @param files 
+   * @param options 
+   */
+  setInputFiles(selector: string, files: string|Array<string>|{
+    /**
+     * File name **required**
+     */
+    name: string;
+
+    /**
+     * File type **required**
+     */
+    mimeType: string;
+
+    /**
+     * File content **required**
+     */
+    buffer: Buffer;
+  }|Array<{
+    /**
+     * File name **required**
+     */
+    name: string;
+
+    /**
+     * File type **required**
+     */
+    mimeType: string;
+
+    /**
+     * File content **required**
+     */
+    buffer: Buffer;
+  }>, options?: {
+    /**
+     * Actions that initiate navigations are waiting for these navigations to happen and for pages to start loading. You can opt out of waiting via setting this flag. You would only need this option in the exceptional cases such as navigating to inaccessible pages. Defaults to `false`.
+     */
+    noWaitAfter?: boolean;
+
+    /**
+     * Maximum time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+  }): Promise<void>;
+
+  /**
+   * In the case of multiple pages in a single browser, each page can have its own viewport size. However, `browser.newContext([options])` allows to set viewport size (and more) for all pages in the context at once.
+   * `page.setViewportSize` will resize the page. A lot of websites don't expect phones to change size, so you should set the viewport size before navigating to the page.
+   * ```js
+   * const page = await browser.newPage();
+   * await page.setViewportSize({
+   *   width: 640,
+   *   height: 480,
+   * });
+   * await page.goto('https://example.com');
+   * ```
+   * @param viewportSize 
+   */
+  setViewportSize(viewportSize: {
+    /**
+     * page width in pixels. **required**
+     */
+    width: number;
+
+    /**
+     * page height in pixels. **required**
+     */
+    height: number;
+  }): Promise<void>;
+
+  /**
+   * This method taps an element matching `selector` by performing the following steps:
+   * 
+   * Find an element match matching `selector`. If there is none, wait until a matching element is attached to the DOM.
+   * Wait for actionability checks on the matched element, unless `force` option is set. If the element is detached during the checks, the whole action is retried.
+   * Scroll the element into view if needed.
+   * Use page.touchscreen to tap the center of the element, or the specified `position`.
+   * Wait for initiated navigations to either succeed or fail, unless `noWaitAfter` option is set.
+   * 
+   * When all steps combined have not finished during the specified `timeout`, this method rejects with a TimeoutError. Passing zero timeout disables this.
+   * 
+   * **NOTE** `page.tap()` requires that the `hasTouch` option of the browser context be set to true.
+   * 
+   * Shortcut for main frame's `frame.tap(selector[, options])`.
+   * @param selector A selector to search for element. If there are multiple elements satisfying the selector, the first will be used. See working with selectors for more details.
+   * @param options 
+   */
+  tap(selector: string, options?: {
+    /**
+     * Whether to bypass the actionability checks. Defaults to `false`.
+     */
+    force?: boolean;
+
+    /**
+     * Modifier keys to press. Ensures that only these modifiers are pressed during the operation, and then restores current modifiers back. If not specified, currently pressed modifiers are used.
+     */
+    modifiers?: Array<"Alt"|"Control"|"Meta"|"Shift">;
+
+    /**
+     * Actions that initiate navigations are waiting for these navigations to happen and for pages to start loading. You can opt out of waiting via setting this flag. You would only need this option in the exceptional cases such as navigating to inaccessible pages. Defaults to `false`.
+     */
+    noWaitAfter?: boolean;
+
+    /**
+     * A point to use relative to the top-left corner of element padding box. If not specified, uses some visible point of the element.
+     */
+    position?: {
+      x: number;
+
+      y: number;
+    };
+
+    /**
+     * Maximum time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+  }): Promise<void>;
+
+  /**
+   * Returns `element.textContent`.
+   * @param selector A selector to search for element. If there are multiple elements satisfying the selector, the first will be used. See working with selectors for more details.
+   * @param options 
+   */
+  textContent(selector: string, options?: {
+    /**
+     * Maximum time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+  }): Promise<null|string>;
+
+  /**
+   * Returns the page's title. Shortcut for main frame's `frame.title()`.
+   */
+  title(): Promise<string>;
+
+  touchscreen: Touchscreen;
+
+  /**
+   * Sends a `keydown`, `keypress`/`input`, and `keyup` event for each character in the text. `page.type` can be used to send fine-grained keyboard events. To fill values in form fields, use `page.fill(selector, value[, options])`.
+   * To press a special key, like `Control` or `ArrowDown`, use `keyboard.press(key[, options])`.
+   * ```js
+   * await page.type('#mytextarea', 'Hello'); // Types instantly
+   * await page.type('#mytextarea', 'World', {delay: 100}); // Types slower, like a user
+   * ```
+   * Shortcut for main frame's `frame.type(selector, text[, options])`.
+   * @param selector A selector to search for element. If there are multiple elements satisfying the selector, the first will be used. See working with selectors for more details.
+   * @param text A text to type into a focused element.
+   * @param options 
+   */
+  type(selector: string, text: string, options?: {
+    /**
+     * Time to wait between key presses in milliseconds. Defaults to 0.
+     */
+    delay?: number;
+
+    /**
+     * Actions that initiate navigations are waiting for these navigations to happen and for pages to start loading. You can opt out of waiting via setting this flag. You would only need this option in the exceptional cases such as navigating to inaccessible pages. Defaults to `false`.
+     */
+    noWaitAfter?: boolean;
+
+    /**
+     * Maximum time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+  }): Promise<void>;
+
+  /**
+   * This method unchecks an element matching `selector` by performing the following steps:
+   * 
+   * Find an element match matching `selector`. If there is none, wait until a matching element is attached to the DOM.
+   * Ensure that matched element is a checkbox or a radio input. If not, this method rejects. If the element is already unchecked, this method returns immediately.
+   * Wait for actionability checks on the matched element, unless `force` option is set. If the element is detached during the checks, the whole action is retried.
+   * Scroll the element into view if needed.
+   * Use page.mouse to click in the center of the element.
+   * Wait for initiated navigations to either succeed or fail, unless `noWaitAfter` option is set.
+   * Ensure that the element is now unchecked. If not, this method rejects.
+   * 
+   * When all steps combined have not finished during the specified `timeout`, this method rejects with a TimeoutError. Passing zero timeout disables this.
+   * Shortcut for main frame's `frame.uncheck(selector[, options])`.
+   * @param selector A selector to search for element. If there are multiple elements satisfying the selector, the first will be used. See working with selectors for more details.
+   * @param options 
+   */
+  uncheck(selector: string, options?: {
+    /**
+     * Whether to bypass the actionability checks. Defaults to `false`.
+     */
+    force?: boolean;
+
+    /**
+     * Actions that initiate navigations are waiting for these navigations to happen and for pages to start loading. You can opt out of waiting via setting this flag. You would only need this option in the exceptional cases such as navigating to inaccessible pages. Defaults to `false`.
+     */
+    noWaitAfter?: boolean;
+
+    /**
+     * Maximum time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+  }): Promise<void>;
+
+  /**
+   * Removes a route created with `page.route(url, handler)`. When `handler` is not specified, removes all routes for the `url`.
+   * @param url A glob pattern, regex pattern or predicate receiving URL to match while routing.
+   * @param handler Optional handler function to route the request.
+   */
+  unroute(url: string|RegExp|((url: URL) => boolean), handler?: ((route: Route, request: Request) => void)): Promise<void>;
+
+  /**
+   * Shortcut for main frame's `frame.url()`.
+   */
+  url(): string;
+
+  /**
+   * Video object associated with this page.
+   */
+  video(): null|Video;
+
+  viewportSize(): null|{
+    /**
+     * page width in pixels.
+     */
+    width: number;
+
+    /**
+     * page height in pixels.
+     */
+    height: number;
+  };
+
+  /**
+   * Emitted when the page closes.
+   */
+  waitForEvent(event: 'close', optionsOrPredicate?: { predicate?: () => boolean, timeout?: number } | (() => boolean)): Promise<void>;
+
+  /**
+   * Emitted when JavaScript within the page calls one of console API methods, e.g. `console.log` or `console.dir`. Also emitted if the page throws an error or a warning.
+   * The arguments passed into `console.log` appear as arguments on the event handler.
+   * An example of handling `console` event:
+   * ```js
+   * page.on('console', msg => {
+   *   for (let i = 0; i < msg.args().length; ++i)
+   *     console.log(`${i}: ${msg.args()[i]}`);
+   * });
+   * page.evaluate(() => console.log('hello', 5, {foo: 'bar'}));
+   * ```
+   */
+  waitForEvent(event: 'console', optionsOrPredicate?: { predicate?: (consoleMessage: ConsoleMessage) => boolean, timeout?: number } | ((consoleMessage: ConsoleMessage) => boolean)): Promise<ConsoleMessage>;
+
+  /**
+   * Emitted when the page crashes. Browser pages might crash if they try to allocate too much memory. When the page crashes, ongoing and subsequent operations will throw.
+   * The most common way to deal with crashes is to catch an exception:
+   * ```js
+   * try {
+   *   // Crash might happen during a click.
+   *   await page.click('button');
+   *   // Or while waiting for an event.
+   *   await page.waitForEvent('popup');
+   * } catch (e) {
+   *   // When the page crashes, exception message contains 'crash'.
+   * }
+   * ```
+   * However, when manually listening to events, it might be useful to avoid stalling when the page crashes. In this case, handling `crash` event helps:
+   * ```js
+   * await new Promise((resolve, reject) => {
+   *   page.on('requestfinished', async request => {
+   *     if (await someProcessing(request))
+   *       resolve(request);
+   *   });
+   *   page.on('crash', error => reject(error));
+   * });
+   * ```
+   */
+  waitForEvent(event: 'crash', optionsOrPredicate?: { predicate?: () => boolean, timeout?: number } | (() => boolean)): Promise<void>;
+
+  /**
+   * Emitted when a JavaScript dialog appears, such as `alert`, `prompt`, `confirm` or `beforeunload`. Playwright can respond to the dialog via `dialog.accept([promptText])` or `dialog.dismiss()` methods.
+   */
+  waitForEvent(event: 'dialog', optionsOrPredicate?: { predicate?: (dialog: Dialog) => boolean, timeout?: number } | ((dialog: Dialog) => boolean)): Promise<Dialog>;
+
+  /**
+   * Emitted when the JavaScript `DOMContentLoaded` event is dispatched.
+   */
+  waitForEvent(event: 'domcontentloaded', optionsOrPredicate?: { predicate?: () => boolean, timeout?: number } | (() => boolean)): Promise<void>;
+
+  /**
+   * Emitted when attachment download started. User can access basic file operations on downloaded content via the passed Download instance.
+   * 
+   * **NOTE** Browser context **must** be created with the `acceptDownloads` set to `true` when user needs access to the downloaded content. If `acceptDownloads` is not set or set to `false`, download events are emitted, but the actual download is not performed and user has no access to the downloaded files.
+   */
+  waitForEvent(event: 'download', optionsOrPredicate?: { predicate?: (download: Download) => boolean, timeout?: number } | ((download: Download) => boolean)): Promise<Download>;
+
+  /**
+   * Emitted when a file chooser is supposed to appear, such as after clicking the  `<input type=file>`. Playwright can respond to it via setting the input files using `fileChooser.setFiles(files[, options])` that can be uploaded after that.
+   * ```js
+   * page.on('filechooser', async (fileChooser) => {
+   *   await fileChooser.setFiles('/tmp/myfile.pdf');
+   * });
+   * ```
+   */
+  waitForEvent(event: 'filechooser', optionsOrPredicate?: { predicate?: (fileChooser: FileChooser) => boolean, timeout?: number } | ((fileChooser: FileChooser) => boolean)): Promise<FileChooser>;
+
+  /**
+   * Emitted when a frame is attached.
+   */
+  waitForEvent(event: 'frameattached', optionsOrPredicate?: { predicate?: (frame: Frame) => boolean, timeout?: number } | ((frame: Frame) => boolean)): Promise<Frame>;
+
+  /**
+   * Emitted when a frame is detached.
+   */
+  waitForEvent(event: 'framedetached', optionsOrPredicate?: { predicate?: (frame: Frame) => boolean, timeout?: number } | ((frame: Frame) => boolean)): Promise<Frame>;
+
+  /**
+   * Emitted when a frame is navigated to a new url.
+   */
+  waitForEvent(event: 'framenavigated', optionsOrPredicate?: { predicate?: (frame: Frame) => boolean, timeout?: number } | ((frame: Frame) => boolean)): Promise<Frame>;
+
+  /**
+   * Emitted when the JavaScript `load` event is dispatched.
+   */
+  waitForEvent(event: 'load', optionsOrPredicate?: { predicate?: () => boolean, timeout?: number } | (() => boolean)): Promise<void>;
+
+  /**
+   * Emitted when an uncaught exception happens within the page.
+   */
+  waitForEvent(event: 'pageerror', optionsOrPredicate?: { predicate?: (error: Error) => boolean, timeout?: number } | ((error: Error) => boolean)): Promise<Error>;
+
+  /**
+   * Emitted when the page opens a new tab or window. This event is emitted in addition to the browserContext.on('page'), but only for popups relevant to this page.
+   * The earliest moment that page is available is when it has navigated to the initial url. For example, when opening a popup with `window.open('http://example.com')`, this event will fire when the network request to "http://example.com" is done and its response has started loading in the popup.
+   * ```js
+   * const [popup] = await Promise.all([
+   *   page.waitForEvent('popup'),
+   *   page.evaluate(() => window.open('https://example.com')),
+   * ]);
+   * console.log(await popup.evaluate('location.href'));
+   * ```
+   * 
+   * **NOTE** Use `page.waitForLoadState([state, options])` to wait until the page gets to a particular state (you should not need it in most cases).
+   */
+  waitForEvent(event: 'popup', optionsOrPredicate?: { predicate?: (page: Page) => boolean, timeout?: number } | ((page: Page) => boolean)): Promise<Page>;
+
+  /**
+   * Emitted when a page issues a request. The request object is read-only. In order to intercept and mutate requests, see `page.route(url, handler)` or `browserContext.route(url, handler)`.
+   */
+  waitForEvent(event: 'request', optionsOrPredicate?: { predicate?: (request: Request) => boolean, timeout?: number } | ((request: Request) => boolean)): Promise<Request>;
+
+  /**
+   * Emitted when a request fails, for example by timing out.
+   * 
+   * **NOTE** HTTP Error responses, such as 404 or 503, are still successful responses from HTTP standpoint, so request will complete with page.on('requestfinished') event and not with page.on('requestfailed').
+   */
+  waitForEvent(event: 'requestfailed', optionsOrPredicate?: { predicate?: (request: Request) => boolean, timeout?: number } | ((request: Request) => boolean)): Promise<Request>;
+
+  /**
+   * Emitted when a request finishes successfully after downloading the response body. For a successful response, the sequence of events is `request`, `response` and `requestfinished`.
+   */
+  waitForEvent(event: 'requestfinished', optionsOrPredicate?: { predicate?: (request: Request) => boolean, timeout?: number } | ((request: Request) => boolean)): Promise<Request>;
+
+  /**
+   * Emitted when response status and headers are received for a request. For a successful response, the sequence of events is `request`, `response` and `requestfinished`.
+   */
+  waitForEvent(event: 'response', optionsOrPredicate?: { predicate?: (response: Response) => boolean, timeout?: number } | ((response: Response) => boolean)): Promise<Response>;
+
+  /**
+   * Emitted when <WebSocket> request is sent.
+   */
+  waitForEvent(event: 'websocket', optionsOrPredicate?: { predicate?: (webSocket: WebSocket) => boolean, timeout?: number } | ((webSocket: WebSocket) => boolean)): Promise<WebSocket>;
+
+  /**
+   * Emitted when a dedicated WebWorker is spawned by the page.
+   */
+  waitForEvent(event: 'worker', optionsOrPredicate?: { predicate?: (worker: Worker) => boolean, timeout?: number } | ((worker: Worker) => boolean)): Promise<Worker>;
+
+
+  /**
+   * Returns when the required load state has been reached.
+   * This resolves when the page reaches a required load state, `load` by default. The navigation must have been committed when this method is called. If current document has already reached the required state, resolves immediately.
+   * ```js
+   * await page.click('button'); // Click triggers navigation.
+   * await page.waitForLoadState(); // The promise resolves after 'load' event.
+   * ```
+   * ```js
+   * const [popup] = await Promise.all([
+   *   page.waitForEvent('popup'),
+   *   page.click('button'), // Click triggers a popup.
+   * ])
+   * await popup.waitForLoadState('domcontentloaded'); // The promise resolves after 'domcontentloaded' event.
+   * console.log(await popup.title()); // Popup is ready to use.
+   * ```
+   * Shortcut for main frame's `frame.waitForLoadState([state, options])`.
+   * @param state Load state to wait for, defaults to `load`. If the state has been already reached while loading current document, the method resolves immediately. Optional.  - `'load'` - wait for the `load` event to be fired.
+   *  - `'domcontentloaded'` - wait for the `DOMContentLoaded` event to be fired.
+   *  - `'networkidle'` - wait until there are no network connections for at least `500` ms.
+   * @param options 
+   */
+  waitForLoadState(state?: "domcontentloaded"|"load"|"networkidle", options?: {
+    /**
+     * Maximum operation time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultNavigationTimeout(timeout)`, `browserContext.setDefaultTimeout(timeout)`, `page.setDefaultNavigationTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+  }): Promise<void>;
+
+  /**
+   * Returns the main resource response. In case of multiple redirects, the navigation will resolve with the response of the last redirect. In case of navigation to a different anchor or navigation due to History API usage, the navigation will resolve with `null`.
+   * This resolves when the page navigates to a new URL or reloads. It is useful for when you run code which will indirectly cause the page to navigate. e.g. The click target has an `onclick` handler that triggers navigation from a `setTimeout`. Consider this example:
+   * ```js
+   * const [response] = await Promise.all([
+   *   page.waitForNavigation(), // The promise resolves after navigation has finished
+   *   page.click('a.delayed-navigation'), // Clicking the link will indirectly cause a navigation
+   * ]);
+   * ```
+   * **NOTE** Usage of the History API to change the URL is considered a navigation.
+   * Shortcut for main frame's `frame.waitForNavigation([options])`.
+   * @param options 
+   */
+  waitForNavigation(options?: {
+    /**
+     * Maximum operation time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultNavigationTimeout(timeout)`, `browserContext.setDefaultTimeout(timeout)`, `page.setDefaultNavigationTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+
+    /**
+     * A glob pattern, regex pattern or predicate receiving URL to match while waiting for the navigation.
+     */
+    url?: string|RegExp|Function;
+
+    /**
+     * When to consider operation succeeded, defaults to `load`. Events can be either:
+     *  - `'domcontentloaded'` - consider operation to be finished when the `DOMContentLoaded` event is fired.
+     *  - `'load'` - consider operation to be finished when the `load` event is fired.
+     *  - `'networkidle'` - consider operation to be finished when there are no network connections for at least `500` ms.
+     */
+    waitUntil?: "domcontentloaded"|"load"|"networkidle";
+  }): Promise<null|Response>;
+
+  /**
+   * Waits for the matching request and returns it.
+   * ```js
+   * const firstRequest = await page.waitForRequest('http://example.com/resource');
+   * const finalRequest = await page.waitForRequest(request => request.url() === 'http://example.com' && request.method() === 'GET');
+   * return firstRequest.url();
+   * ```
+   * ```js
+   * await page.waitForRequest(request => request.url().searchParams.get('foo') === 'bar' && request.url().searchParams.get('foo2') === 'bar2');
+   * ```
+   * @param urlOrPredicate Request URL string, regex or predicate receiving Request object.
+   * @param options 
+   */
+  waitForRequest(urlOrPredicate: string|RegExp|Function, options?: {
+    /**
+     * Maximum wait time in milliseconds, defaults to 30 seconds, pass `0` to disable the timeout. The default value can be changed by using the `page.setDefaultTimeout(timeout)` method.
+     */
+    timeout?: number;
+  }): Promise<Request>;
+
+  /**
+   * Returns the matched response.
+   * ```js
+   * const firstResponse = await page.waitForResponse('https://example.com/resource');
+   * const finalResponse = await page.waitForResponse(response => response.url() === 'https://example.com' && response.status() === 200);
+   * return finalResponse.ok();
+   * ```
+   * @param urlOrPredicate Request URL string, regex or predicate receiving Response object.
+   * @param options 
+   */
+  waitForResponse(urlOrPredicate: string|RegExp|((response: Response) => boolean), options?: {
+    /**
+     * Maximum wait time in milliseconds, defaults to 30 seconds, pass `0` to disable the timeout. The default value can be changed by using the `browserContext.setDefaultTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+  }): Promise<Response>;
+
+  /**
+   * Waits for the given `timeout` in milliseconds.
+   * Note that `page.waitForTimeout()` should only be used for debugging. Tests using the timer in production are going to be flaky. Use signals such as network events, selectors becoming visible and others instead.
+   * ```js
+   * // wait for 1 second
+   * await page.waitForTimeout(1000);
+   * ```
+   * Shortcut for main frame's `frame.waitForTimeout(timeout)`.
+   * @param timeout A timeout to wait for
+   */
+  waitForTimeout(timeout: number): Promise<void>;
+
+  /**
+   * This method returns all of the dedicated WebWorkers associated with the page.
+   * 
+   * **NOTE** This does not contain ServiceWorkers
+   */
+  workers(): Array<Worker>;}
+
+/**
+ * At every point of time, page exposes its current frame tree via the `page.mainFrame()` and `frame.childFrames()` methods.
+ * Frame object's lifecycle is controlled by three events, dispatched on the page object:
+ * 
+ * page.on('frameattached') - fired when the frame gets attached to the page. A Frame can be attached to the page only once.
+ * page.on('framenavigated') - fired when the frame commits navigation to a different URL.
+ * page.on('framedetached') - fired when the frame gets detached from the page.  A Frame can be detached from the page only once.
+ * 
+ * An example of dumping frame tree:
+ * ```js
+ * const { firefox } = require('playwright');  // Or 'chromium' or 'webkit'.
+ * 
+ * (async () => {
+ *   const browser = await firefox.launch();
+ *   const page = await browser.newPage();
+ *   await page.goto('https://www.google.com/chrome/browser/canary.html');
+ *   dumpFrameTree(page.mainFrame(), '');
+ *   await browser.close();
+ * 
+ *   function dumpFrameTree(frame, indent) {
+ *     console.log(indent + frame.url());
+ *     for (const child of frame.childFrames()) {
+ *       dumpFrameTree(child, indent + '  ');
+ *     }
+ *   }
+ * })();
+ * ```
+ * An example of getting text from an iframe element:
+ * ```js
+ * const frame = page.frames().find(frame => frame.name() === 'myframe');
+ * const text = await frame.$eval('.selector', element => element.textContent);
+ * console.log(text);
+ * ```
+ */
+export interface Frame {
+  /**
+   * Returns the return value of `pageFunction`
+   * If the function passed to the `frame.evaluate` returns a Promise, then `frame.evaluate` would wait for the promise to resolve and return its value.
+   * If the function passed to the `frame.evaluate` returns a non-Serializable value, then `frame.evaluate` returns `undefined`. DevTools Protocol also supports transferring some additional values that are not serializable by `JSON`: `-0`, `NaN`, `Infinity`, `-Infinity`, and bigint literals.
+   * ```js
+   * const result = await frame.evaluate(([x, y]) => {
+   *   return Promise.resolve(x * y);
+   * }, [7, 8]);
+   * console.log(result); // prints "56"
+   * ```
+   * A string can also be passed in instead of a function.
+   * ```js
+   * console.log(await frame.evaluate('1 + 2')); // prints "3"
+   * ```
+   * ElementHandle instances can be passed as an argument to the `frame.evaluate`:
+   * ```js
+   * const bodyHandle = await frame.$('body');
+   * const html = await frame.evaluate(([body, suffix]) => body.innerHTML + suffix, [bodyHandle, 'hello']);
+   * await bodyHandle.dispose();
+   * ```
+   * @param pageFunction Function to be evaluated in browser context
+   * @param arg Optional argument to pass to `pageFunction`
+   */
+  evaluate<R, Arg>(pageFunction: PageFunction<Arg, R>, arg: Arg): Promise<R>;
+  evaluate<R>(pageFunction: PageFunction<void, R>, arg?: any): Promise<R>;
+
+  /**
+   * Returns the return value of `pageFunction` as in-page object (JSHandle).
+   * The only difference between `frame.evaluate` and `frame.evaluateHandle` is that `frame.evaluateHandle` returns in-page object (JSHandle).
+   * If the function, passed to the `frame.evaluateHandle`, returns a Promise, then `frame.evaluateHandle` would wait for the promise to resolve and return its value.
+   * ```js
+   * const aWindowHandle = await frame.evaluateHandle(() => Promise.resolve(window));
+   * aWindowHandle; // Handle for the window object.
+   * ```
+   * A string can also be passed in instead of a function.
+   * ```js
+   * const aHandle = await frame.evaluateHandle('document'); // Handle for the 'document'.
+   * ```
+   * JSHandle instances can be passed as an argument to the `frame.evaluateHandle`:
+   * ```js
+   * const aHandle = await frame.evaluateHandle(() => document.body);
+   * const resultHandle = await frame.evaluateHandle(([body, suffix]) => body.innerHTML + suffix, [aHandle, 'hello']);
+   * console.log(await resultHandle.jsonValue());
+   * await resultHandle.dispose();
+   * ```
+   * @param pageFunction Function to be evaluated in the page context
+   * @param arg Optional argument to pass to `pageFunction`
+   */
+  evaluateHandle<R, Arg>(pageFunction: PageFunction<Arg, R>, arg: Arg): Promise<SmartHandle<R>>;
+  evaluateHandle<R>(pageFunction: PageFunction<void, R>, arg?: any): Promise<SmartHandle<R>>;
+
+  /**
+   * Returns the ElementHandle pointing to the frame element.
+   * The method finds an element matching the specified selector within the frame. See Working with selectors for more details. If no elements match the selector, returns `null`.
+   * @param selector A selector to query for. See working with selectors for more details.
+   */
+  $<K extends keyof HTMLElementTagNameMap>(selector: K): Promise<ElementHandleForTag<K> | null>;
+  $(selector: string): Promise<ElementHandle<SVGElement | HTMLElement> | null>;
+
+  /**
+   * Returns the ElementHandles pointing to the frame elements.
+   * The method finds all elements matching the specified selector within the frame. See Working with selectors for more details. If no elements match the selector, returns empty array.
+   * @param selector A selector to query for. See working with selectors for more details.
+   */
+  $$<K extends keyof HTMLElementTagNameMap>(selector: K): Promise<ElementHandleForTag<K>[]>;
+  $$(selector: string): Promise<ElementHandle<SVGElement | HTMLElement>[]>;
+
+  /**
+   * Returns the return value of `pageFunction`
+   * The method finds an element matching the specified selector within the frame and passes it as a first argument to `pageFunction`. See Working with selectors for more details. If no elements match the selector, the method throws an error.
+   * If `pageFunction` returns a Promise, then `frame.$eval` would wait for the promise to resolve and return its value.
+   * Examples:
+   * ```js
+   * const searchValue = await frame.$eval('#search', el => el.value);
+   * const preloadHref = await frame.$eval('link[rel=preload]', el => el.href);
+   * const html = await frame.$eval('.main-container', (e, suffix) => e.outerHTML + suffix, 'hello');
+   * ```
+   * @param selector A selector to query for. See working with selectors for more details.
+   * @param pageFunction Function to be evaluated in browser context
+   * @param arg Optional argument to pass to `pageFunction`
+   */
+  $eval<K extends keyof HTMLElementTagNameMap, R, Arg>(selector: K, pageFunction: PageFunctionOn<HTMLElementTagNameMap[K], Arg, R>, arg: Arg): Promise<R>;
+  $eval<R, Arg, E extends SVGElement | HTMLElement = SVGElement | HTMLElement>(selector: string, pageFunction: PageFunctionOn<E, Arg, R>, arg: Arg): Promise<R>;
+  $eval<K extends keyof HTMLElementTagNameMap, R>(selector: K, pageFunction: PageFunctionOn<HTMLElementTagNameMap[K], void, R>, arg?: any): Promise<R>;
+  $eval<R, E extends SVGElement | HTMLElement = SVGElement | HTMLElement>(selector: string, pageFunction: PageFunctionOn<E, void, R>, arg?: any): Promise<R>;
+
+  /**
+   * Returns the return value of `pageFunction`
+   * The method finds all elements matching the specified selector within the frame and passes an array of matched elements as a first argument to `pageFunction`. See Working with selectors for more details.
+   * If `pageFunction` returns a Promise, then `frame.$$eval` would wait for the promise to resolve and return its value.
+   * Examples:
+   * ```js
+   * const divsCounts = await frame.$$eval('div', (divs, min) => divs.length >= min, 10);
+   * ```
+   * @param selector A selector to query for. See working with selectors for more details.
+   * @param pageFunction Function to be evaluated in browser context
+   * @param arg Optional argument to pass to `pageFunction`
+   */
+  $$eval<K extends keyof HTMLElementTagNameMap, R, Arg>(selector: K, pageFunction: PageFunctionOn<HTMLElementTagNameMap[K][], Arg, R>, arg: Arg): Promise<R>;
+  $$eval<R, Arg, E extends SVGElement | HTMLElement = SVGElement | HTMLElement>(selector: string, pageFunction: PageFunctionOn<E[], Arg, R>, arg: Arg): Promise<R>;
+  $$eval<K extends keyof HTMLElementTagNameMap, R>(selector: K, pageFunction: PageFunctionOn<HTMLElementTagNameMap[K][], void, R>, arg?: any): Promise<R>;
+  $$eval<R, E extends SVGElement | HTMLElement = SVGElement | HTMLElement>(selector: string, pageFunction: PageFunctionOn<E[], void, R>, arg?: any): Promise<R>;
+
+  /**
+   * Returns when the `pageFunction` returns a truthy value, returns that value.
+   * The `waitForFunction` can be used to observe viewport size change:
+   * ```js
+   * const { firefox } = require('playwright');  // Or 'chromium' or 'webkit'.
+   * 
+   * (async () => {
+   *   const browser = await firefox.launch();
+   *   const page = await browser.newPage();
+   *   const watchDog = page.mainFrame().waitForFunction('window.innerWidth < 100');
+   *   page.setViewportSize({width: 50, height: 50});
+   *   await watchDog;
+   *   await browser.close();
+   * })();
+   * ```
+   * To pass an argument to the predicate of `frame.waitForFunction` function:
+   * ```js
+   * const selector = '.foo';
+   * await frame.waitForFunction(selector => !!document.querySelector(selector), selector);
+   * ```
+   * @param pageFunction Function to be evaluated in browser context
+   * @param arg Optional argument to pass to `pageFunction`
+   * @param options 
+   */
+  waitForFunction<R, Arg>(pageFunction: PageFunction<Arg, R>, arg: Arg, options?: PageWaitForFunctionOptions): Promise<SmartHandle<R>>;
+  waitForFunction<R>(pageFunction: PageFunction<void, R>, arg?: any, options?: PageWaitForFunctionOptions): Promise<SmartHandle<R>>;
+
+  /**
+   * Returns when element specified by selector satisfies `state` option. Returns `null` if waiting for `hidden` or `detached`.
+   * Wait for the `selector` to satisfy `state` option (either appear/disappear from dom, or become visible/hidden). If at the moment of calling the method `selector` already satisfies the condition, the method will return immediately. If the selector doesn't satisfy the condition for the `timeout` milliseconds, the function will throw.
+   * This method works across navigations:
+   * ```js
+   * const { webkit } = require('playwright');  // Or 'chromium' or 'firefox'.
+   * 
+   * (async () => {
+   *   const browser = await webkit.launch();
+   *   const page = await browser.newPage();
+   *   let currentURL;
+   *   page.mainFrame()
+   *     .waitForSelector('img')
+   *     .then(() => console.log('First URL with image: ' + currentURL));
+   *   for (currentURL of ['https://example.com', 'https://google.com', 'https://bbc.com']) {
+   *     await page.goto(currentURL);
+   *   }
+   *   await browser.close();
+   * })();
+   * ```
+   * @param selector A selector to query for. See working with selectors for more details.
+   * @param options 
+   */
+  waitForSelector<K extends keyof HTMLElementTagNameMap>(selector: K, options?: PageWaitForSelectorOptionsNotHidden): Promise<ElementHandleForTag<K>>;
+  waitForSelector(selector: string, options?: PageWaitForSelectorOptionsNotHidden): Promise<ElementHandle<SVGElement | HTMLElement>>;
+  waitForSelector<K extends keyof HTMLElementTagNameMap>(selector: K, options: PageWaitForSelectorOptions): Promise<ElementHandleForTag<K> | null>;
+  waitForSelector(selector: string, options: PageWaitForSelectorOptions): Promise<null|ElementHandle<SVGElement | HTMLElement>>;
+  /**
+   * Returns the added tag when the script's onload fires or when the script content was injected into frame.
+   * Adds a `<script>` tag into the page with the desired url or content.
+   * @param params 
+   */
+  addScriptTag(params: {
+    /**
+     * URL of a script to be added.
+     */
+    url?: string;
+
+    /**
+     * Path to the JavaScript file to be injected into frame. If `path` is a relative path, then it is resolved relative to the current working directory.
+     */
+    path?: string;
+
+    /**
+     * Raw JavaScript content to be injected into frame.
+     */
+    content?: string;
+
+    /**
+     * Script type. Use 'module' in order to load a Javascript ES6 module. See script for more details.
+     */
+    type?: string;
+  }): Promise<ElementHandle>;
+
+  /**
+   * Returns the added tag when the stylesheet's onload fires or when the CSS content was injected into frame.
+   * Adds a `<link rel="stylesheet">` tag into the page with the desired url or a `<style type="text/css">` tag with the content.
+   * @param params 
+   */
+  addStyleTag(params: {
+    /**
+     * URL of the `<link>` tag.
+     */
+    url?: string;
+
+    /**
+     * Path to the CSS file to be injected into frame. If `path` is a relative path, then it is resolved relative to the current working directory.
+     */
+    path?: string;
+
+    /**
+     * Raw CSS content to be injected into frame.
+     */
+    content?: string;
+  }): Promise<ElementHandle>;
+
+  /**
+   * This method checks an element matching `selector` by performing the following steps:
+   * 
+   * Find an element match matching `selector`. If there is none, wait until a matching element is attached to the DOM.
+   * Ensure that matched element is a checkbox or a radio input. If not, this method rejects. If the element is already checked, this method returns immediately.
+   * Wait for actionability checks on the matched element, unless `force` option is set. If the element is detached during the checks, the whole action is retried.
+   * Scroll the element into view if needed.
+   * Use page.mouse to click in the center of the element.
+   * Wait for initiated navigations to either succeed or fail, unless `noWaitAfter` option is set.
+   * Ensure that the element is now checked. If not, this method rejects.
+   * 
+   * When all steps combined have not finished during the specified `timeout`, this method rejects with a TimeoutError. Passing zero timeout disables this.
+   * @param selector A selector to search for element. If there are multiple elements satisfying the selector, the first will be used. See working with selectors for more details.
+   * @param options 
+   */
+  check(selector: string, options?: {
+    /**
+     * Whether to bypass the actionability checks. Defaults to `false`.
+     */
+    force?: boolean;
+
+    /**
+     * Actions that initiate navigations are waiting for these navigations to happen and for pages to start loading. You can opt out of waiting via setting this flag. You would only need this option in the exceptional cases such as navigating to inaccessible pages. Defaults to `false`.
+     */
+    noWaitAfter?: boolean;
+
+    /**
+     * Maximum time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+  }): Promise<void>;
+
+  childFrames(): Array<Frame>;
+
+  /**
+   * This method clicks an element matching `selector` by performing the following steps:
+   * 
+   * Find an element match matching `selector`. If there is none, wait until a matching element is attached to the DOM.
+   * Wait for actionability checks on the matched element, unless `force` option is set. If the element is detached during the checks, the whole action is retried.
+   * Scroll the element into view if needed.
+   * Use page.mouse to click in the center of the element, or the specified `position`.
+   * Wait for initiated navigations to either succeed or fail, unless `noWaitAfter` option is set.
+   * 
+   * When all steps combined have not finished during the specified `timeout`, this method rejects with a TimeoutError. Passing zero timeout disables this.
+   * @param selector A selector to search for element. If there are multiple elements satisfying the selector, the first will be used. See working with selectors for more details.
+   * @param options 
+   */
+  click(selector: string, options?: {
+    /**
+     * Defaults to `left`.
+     */
+    button?: "left"|"middle"|"right";
+
+    /**
+     * defaults to 1. See UIEvent.detail.
+     */
+    clickCount?: number;
+
+    /**
+     * Time to wait between `mousedown` and `mouseup` in milliseconds. Defaults to 0.
+     */
+    delay?: number;
+
+    /**
+     * Whether to bypass the actionability checks. Defaults to `false`.
+     */
+    force?: boolean;
+
+    /**
+     * Modifier keys to press. Ensures that only these modifiers are pressed during the operation, and then restores current modifiers back. If not specified, currently pressed modifiers are used.
+     */
+    modifiers?: Array<"Alt"|"Control"|"Meta"|"Shift">;
+
+    /**
+     * Actions that initiate navigations are waiting for these navigations to happen and for pages to start loading. You can opt out of waiting via setting this flag. You would only need this option in the exceptional cases such as navigating to inaccessible pages. Defaults to `false`.
+     */
+    noWaitAfter?: boolean;
+
+    /**
+     * A point to use relative to the top-left corner of element padding box. If not specified, uses some visible point of the element.
+     */
+    position?: {
+      x: number;
+
+      y: number;
+    };
+
+    /**
+     * Maximum time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+  }): Promise<void>;
+
+  /**
+   * Gets the full HTML contents of the frame, including the doctype.
+   */
+  content(): Promise<string>;
+
+  /**
+   * This method double clicks an element matching `selector` by performing the following steps:
+   * 
+   * Find an element match matching `selector`. If there is none, wait until a matching element is attached to the DOM.
+   * Wait for actionability checks on the matched element, unless `force` option is set. If the element is detached during the checks, the whole action is retried.
+   * Scroll the element into view if needed.
+   * Use page.mouse to double click in the center of the element, or the specified `position`.
+   * Wait for initiated navigations to either succeed or fail, unless `noWaitAfter` option is set. Note that if the first click of the `dblclick()` triggers a navigation event, this method will reject.
+   * 
+   * When all steps combined have not finished during the specified `timeout`, this method rejects with a TimeoutError. Passing zero timeout disables this.
+   * 
+   * **NOTE** `frame.dblclick()` dispatches two `click` events and a single `dblclick` event.
+   * @param selector A selector to search for element. If there are multiple elements satisfying the selector, the first will be used. See working with selectors for more details.
+   * @param options 
+   */
+  dblclick(selector: string, options?: {
+    /**
+     * Defaults to `left`.
+     */
+    button?: "left"|"middle"|"right";
+
+    /**
+     * Time to wait between `mousedown` and `mouseup` in milliseconds. Defaults to 0.
+     */
+    delay?: number;
+
+    /**
+     * Whether to bypass the actionability checks. Defaults to `false`.
+     */
+    force?: boolean;
+
+    /**
+     * Modifier keys to press. Ensures that only these modifiers are pressed during the operation, and then restores current modifiers back. If not specified, currently pressed modifiers are used.
+     */
+    modifiers?: Array<"Alt"|"Control"|"Meta"|"Shift">;
+
+    /**
+     * Actions that initiate navigations are waiting for these navigations to happen and for pages to start loading. You can opt out of waiting via setting this flag. You would only need this option in the exceptional cases such as navigating to inaccessible pages. Defaults to `false`.
+     */
+    noWaitAfter?: boolean;
+
+    /**
+     * A point to use relative to the top-left corner of element padding box. If not specified, uses some visible point of the element.
+     */
+    position?: {
+      x: number;
+
+      y: number;
+    };
+
+    /**
+     * Maximum time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+  }): Promise<void>;
+
+  /**
+   * The snippet below dispatches the `click` event on the element. Regardless of the visibility state of the elment, `click` is dispatched. This is equivalend to calling element.click().
+   * ```js
+   * await frame.dispatchEvent('button#submit', 'click');
+   * ```
+   * Under the hood, it creates an instance of an event based on the given `type`, initializes it with `eventInit` properties and dispatches it on the element. Events are `composed`, `cancelable` and bubble by default.
+   * Since `eventInit` is event-specific, please refer to the events documentation for the lists of initial properties:
+   * 
+   * DragEvent
+   * FocusEvent
+   * KeyboardEvent
+   * MouseEvent
+   * PointerEvent
+   * TouchEvent
+   * Event
+   * 
+   * You can also specify `JSHandle` as the property value if you want live objects to be passed into the event:
+   * ```js
+   * // Note you can only create DataTransfer in Chromium and Firefox
+   * const dataTransfer = await frame.evaluateHandle(() => new DataTransfer());
+   * await frame.dispatchEvent('#source', 'dragstart', { dataTransfer });
+   * ```
+   * @param selector A selector to search for element. If there are multiple elements satisfying the selector, the first will be used. See working with selectors for more details.
+   * @param type DOM event type: `"click"`, `"dragstart"`, etc.
+   * @param eventInit Optional event-specific initialization properties.
+   * @param options 
+   */
+  dispatchEvent(selector: string, type: string, eventInit?: EvaluationArgument, options?: {
+    /**
+     * Maximum time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+  }): Promise<void>;
+
+  /**
+   * This method waits for an element matching `selector`, waits for actionability checks, focuses the element, fills it and triggers an `input` event after filling. If the element matching `selector` is not an `<input>`, `<textarea>` or `[contenteditable]` element, this method throws an error. Note that you can pass an empty string to clear the input field.
+   * To send fine-grained keyboard events, use `frame.type(selector, text[, options])`.
+   * @param selector A selector to search for element. If there are multiple elements satisfying the selector, the first will be used. See working with selectors for more details.
+   * @param value Value to fill for the `<input>`, `<textarea>` or `[contenteditable]` element.
+   * @param options 
+   */
+  fill(selector: string, value: string, options?: {
+    /**
+     * Actions that initiate navigations are waiting for these navigations to happen and for pages to start loading. You can opt out of waiting via setting this flag. You would only need this option in the exceptional cases such as navigating to inaccessible pages. Defaults to `false`.
+     */
+    noWaitAfter?: boolean;
+
+    /**
+     * Maximum time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+  }): Promise<void>;
+
+  /**
+   * This method fetches an element with `selector` and focuses it. If there's no element matching `selector`, the method waits until a matching element appears in the DOM.
+   * @param selector A selector to search for element. If there are multiple elements satisfying the selector, the first will be used. See working with selectors for more details.
+   * @param options 
+   */
+  focus(selector: string, options?: {
+    /**
+     * Maximum time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+  }): Promise<void>;
+
+  /**
+   * Returns the `frame` or `iframe` element handle which corresponds to this frame.
+   * This is an inverse of `elementHandle.contentFrame()`. Note that returned handle actually belongs to the parent frame.
+   * This method throws an error if the frame has been detached before `frameElement()` returns.
+   * ```js
+   * const frameElement = await frame.frameElement();
+   * const contentFrame = await frameElement.contentFrame();
+   * console.log(frame === contentFrame);  // -> true
+   * ```
+   */
+  frameElement(): Promise<ElementHandle>;
+
+  /**
+   * Returns element attribute value.
+   * @param selector A selector to search for element. If there are multiple elements satisfying the selector, the first will be used. See working with selectors for more details.
+   * @param name Attribute name to get the value for.
+   * @param options 
+   */
+  getAttribute(selector: string, name: string, options?: {
+    /**
+     * Maximum time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+  }): Promise<null|string>;
+
+  /**
+   * Returns the main resource response. In case of multiple redirects, the navigation will resolve with the response of the last redirect.
+   * `frame.goto` will throw an error if:
+   * 
+   * there's an SSL error (e.g. in case of self-signed certificates).
+   * target URL is invalid.
+   * the `timeout` is exceeded during navigation.
+   * the remote server does not respond or is unreachable.
+   * the main resource failed to load.
+   * 
+   * `frame.goto` will not throw an error when any valid HTTP status code is returned by the remote server, including 404 "Not Found" and 500 "Internal Server Error".  The status code for such responses can be retrieved by calling `response.status()`.
+   * 
+   * **NOTE** `frame.goto` either throws an error or returns a main resource response. The only exceptions are navigation to `about:blank` or navigation to the same URL with a different hash, which would succeed and return `null`.
+   * **NOTE** Headless mode doesn't support navigation to a PDF document. See the upstream issue.
+   * @param url URL to navigate frame to. The url should include scheme, e.g. `https://`.
+   * @param options 
+   */
+  goto(url: string, options?: {
+    /**
+     * Referer header value. If provided it will take preference over the referer header value set by `page.setExtraHTTPHeaders(headers)`.
+     */
+    referer?: string;
+
+    /**
+     * Maximum operation time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultNavigationTimeout(timeout)`, `browserContext.setDefaultTimeout(timeout)`, `page.setDefaultNavigationTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+
+    /**
+     * When to consider operation succeeded, defaults to `load`. Events can be either:
+     *  - `'domcontentloaded'` - consider operation to be finished when the `DOMContentLoaded` event is fired.
+     *  - `'load'` - consider operation to be finished when the `load` event is fired.
+     *  - `'networkidle'` - consider operation to be finished when there are no network connections for at least `500` ms.
+     */
+    waitUntil?: "domcontentloaded"|"load"|"networkidle";
+  }): Promise<null|Response>;
+
+  /**
+   * This method hovers over an element matching `selector` by performing the following steps:
+   * 
+   * Find an element match matching `selector`. If there is none, wait until a matching element is attached to the DOM.
+   * Wait for actionability checks on the matched element, unless `force` option is set. If the element is detached during the checks, the whole action is retried.
+   * Scroll the element into view if needed.
+   * Use page.mouse to hover over the center of the element, or the specified `position`.
+   * Wait for initiated navigations to either succeed or fail, unless `noWaitAfter` option is set.
+   * 
+   * When all steps combined have not finished during the specified `timeout`, this method rejects with a TimeoutError. Passing zero timeout disables this.
+   * @param selector A selector to search for element. If there are multiple elements satisfying the selector, the first will be used. See working with selectors for more details.
+   * @param options 
+   */
+  hover(selector: string, options?: {
+    /**
+     * Whether to bypass the actionability checks. Defaults to `false`.
+     */
+    force?: boolean;
+
+    /**
+     * Modifier keys to press. Ensures that only these modifiers are pressed during the operation, and then restores current modifiers back. If not specified, currently pressed modifiers are used.
+     */
+    modifiers?: Array<"Alt"|"Control"|"Meta"|"Shift">;
+
+    /**
+     * A point to use relative to the top-left corner of element padding box. If not specified, uses some visible point of the element.
+     */
+    position?: {
+      x: number;
+
+      y: number;
+    };
+
+    /**
+     * Maximum time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+  }): Promise<void>;
+
+  /**
+   * Returns `element.innerHTML`.
+   * @param selector A selector to search for element. If there are multiple elements satisfying the selector, the first will be used. See working with selectors for more details.
+   * @param options 
+   */
+  innerHTML(selector: string, options?: {
+    /**
+     * Maximum time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+  }): Promise<string>;
+
+  /**
+   * Returns `element.innerText`.
+   * @param selector A selector to search for element. If there are multiple elements satisfying the selector, the first will be used. See working with selectors for more details.
+   * @param options 
+   */
+  innerText(selector: string, options?: {
+    /**
+     * Maximum time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+  }): Promise<string>;
+
+  /**
+   * Returns `true` if the frame has been detached, or `false` otherwise.
+   */
+  isDetached(): boolean;
+
+  /**
+   * Returns frame's name attribute as specified in the tag.
+   * If the name is empty, returns the id attribute instead.
+   * 
+   * **NOTE** This value is calculated once when the frame is created, and will not update if the attribute is changed later.
+   */
+  name(): string;
+
+  /**
+   * Returns the page containing this frame.
+   */
+  page(): Page;
+
+  /**
+   * Parent frame, if any. Detached frames and main frames return `null`.
+   */
+  parentFrame(): null|Frame;
+
+  /**
+   * `key` can specify the intended keyboardEvent.key value or a single character to generate the text for. A superset of the `key` values can be found here. Examples of the keys are:
+   * `F1` - `F12`, `Digit0`- `Digit9`, `KeyA`- `KeyZ`, `Backquote`, `Minus`, `Equal`, `Backslash`, `Backspace`, `Tab`, `Delete`, `Escape`, `ArrowDown`, `End`, `Enter`, `Home`, `Insert`, `PageDown`, `PageUp`, `ArrowRight`, `ArrowUp`, etc.
+   * Following modification shortcuts are also suported: `Shift`, `Control`, `Alt`, `Meta`, `ShiftLeft`.
+   * Holding down `Shift` will type the text that corresponds to the `key` in the upper case.
+   * If `key` is a single character, it is case-sensitive, so the values `a` and `A` will generate different respective texts.
+   * Shortcuts such as `key: "Control+o"` or `key: "Control+Shift+T"` are supported as well. When speficied with the modifier, modifier is pressed and being held while the subsequent key is being pressed.
+   * @param selector A selector to search for element. If there are multiple elements satisfying the selector, the first will be used. See working with selectors for more details.
+   * @param key Name of the key to press or a character to generate, such as `ArrowLeft` or `a`.
+   * @param options 
+   */
+  press(selector: string, key: string, options?: {
+    /**
+     * Time to wait between `keydown` and `keyup` in milliseconds. Defaults to 0.
+     */
+    delay?: number;
+
+    /**
+     * Actions that initiate navigations are waiting for these navigations to happen and for pages to start loading. You can opt out of waiting via setting this flag. You would only need this option in the exceptional cases such as navigating to inaccessible pages. Defaults to `false`.
+     */
+    noWaitAfter?: boolean;
+
+    /**
+     * Maximum time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+  }): Promise<void>;
+
+  /**
+   * Returns the array of option values that have been successfully selected.
+   * Triggers a `change` and `input` event once all the provided options have been selected. If there's no `<select>` element matching `selector`, the method throws an error.
+   * ```js
+   * // single selection matching the value
+   * frame.selectOption('select#colors', 'blue');
+   * 
+   * // single selection matching both the value and the label
+   * frame.selectOption('select#colors', { label: 'Blue' });
+   * 
+   * // multiple selection
+   * frame.selectOption('select#colors', 'red', 'green', 'blue');
+   * ```
+   * @param selector A selector to query for. See working with selectors for more details.
+   * @param values Options to select. If the `<select>` has the `multiple` attribute, all matching options are selected, otherwise only the first option matching one of the passed options is selected. String values are equivalent to `{value:'string'}`. Option is considered matching if all specified properties match.
+   * @param options 
+   */
+  selectOption(selector: string, values: null|string|ElementHandle|Array<string>|{
+    /**
+     * Matches by `option.value`.
+     */
+    value?: string;
+
+    /**
+     * Matches by `option.label`.
+     */
+    label?: string;
+
+    /**
+     * Matches by the index.
+     */
+    index?: number;
+  }|Array<ElementHandle>|Array<{
+    /**
+     * Matches by `option.value`.
+     */
+    value?: string;
+
+    /**
+     * Matches by `option.label`.
+     */
+    label?: string;
+
+    /**
+     * Matches by the index.
+     */
+    index?: number;
+  }>, options?: {
+    /**
+     * Actions that initiate navigations are waiting for these navigations to happen and for pages to start loading. You can opt out of waiting via setting this flag. You would only need this option in the exceptional cases such as navigating to inaccessible pages. Defaults to `false`.
+     */
+    noWaitAfter?: boolean;
+
+    /**
+     * Maximum time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+  }): Promise<Array<string>>;
+
+  /**
+   * @param html HTML markup to assign to the page.
+   * @param options 
+   */
+  setContent(html: string, options?: {
+    /**
+     * Maximum operation time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultNavigationTimeout(timeout)`, `browserContext.setDefaultTimeout(timeout)`, `page.setDefaultNavigationTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+
+    /**
+     * When to consider operation succeeded, defaults to `load`. Events can be either:
+     *  - `'domcontentloaded'` - consider operation to be finished when the `DOMContentLoaded` event is fired.
+     *  - `'load'` - consider operation to be finished when the `load` event is fired.
+     *  - `'networkidle'` - consider operation to be finished when there are no network connections for at least `500` ms.
+     */
+    waitUntil?: "domcontentloaded"|"load"|"networkidle";
+  }): Promise<void>;
+
+  /**
+   * This method expects `selector` to point to an input element.
+   * Sets the value of the file input to these file paths or files. If some of the `filePaths` are relative paths, then they are resolved relative to the the current working directory. For empty array, clears the selected files.
+   * @param selector A selector to search for element. If there are multiple elements satisfying the selector, the first will be used. See working with selectors for more details.
+   * @param files 
+   * @param options 
+   */
+  setInputFiles(selector: string, files: string|Array<string>|{
+    /**
+     * File name **required**
+     */
+    name: string;
+
+    /**
+     * File type **required**
+     */
+    mimeType: string;
+
+    /**
+     * File content **required**
+     */
+    buffer: Buffer;
+  }|Array<{
+    /**
+     * File name **required**
+     */
+    name: string;
+
+    /**
+     * File type **required**
+     */
+    mimeType: string;
+
+    /**
+     * File content **required**
+     */
+    buffer: Buffer;
+  }>, options?: {
+    /**
+     * Actions that initiate navigations are waiting for these navigations to happen and for pages to start loading. You can opt out of waiting via setting this flag. You would only need this option in the exceptional cases such as navigating to inaccessible pages. Defaults to `false`.
+     */
+    noWaitAfter?: boolean;
+
+    /**
+     * Maximum time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+  }): Promise<void>;
+
+  /**
+   * This method taps an element matching `selector` by performing the following steps:
+   * 
+   * Find an element match matching `selector`. If there is none, wait until a matching element is attached to the DOM.
+   * Wait for actionability checks on the matched element, unless `force` option is set. If the element is detached during the checks, the whole action is retried.
+   * Scroll the element into view if needed.
+   * Use page.touchscreen to tap the center of the element, or the specified `position`.
+   * Wait for initiated navigations to either succeed or fail, unless `noWaitAfter` option is set.
+   * 
+   * When all steps combined have not finished during the specified `timeout`, this method rejects with a TimeoutError. Passing zero timeout disables this.
+   * 
+   * **NOTE** `frame.tap()` requires that the `hasTouch` option of the browser context be set to true.
+   * @param selector A selector to search for element. If there are multiple elements satisfying the selector, the first will be used. See working with selectors for more details.
+   * @param options 
+   */
+  tap(selector: string, options?: {
+    /**
+     * Whether to bypass the actionability checks. Defaults to `false`.
+     */
+    force?: boolean;
+
+    /**
+     * Modifier keys to press. Ensures that only these modifiers are pressed during the operation, and then restores current modifiers back. If not specified, currently pressed modifiers are used.
+     */
+    modifiers?: Array<"Alt"|"Control"|"Meta"|"Shift">;
+
+    /**
+     * Actions that initiate navigations are waiting for these navigations to happen and for pages to start loading. You can opt out of waiting via setting this flag. You would only need this option in the exceptional cases such as navigating to inaccessible pages. Defaults to `false`.
+     */
+    noWaitAfter?: boolean;
+
+    /**
+     * A point to use relative to the top-left corner of element padding box. If not specified, uses some visible point of the element.
+     */
+    position?: {
+      x: number;
+
+      y: number;
+    };
+
+    /**
+     * Maximum time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+  }): Promise<void>;
+
+  /**
+   * Returns `element.textContent`.
+   * @param selector A selector to search for element. If there are multiple elements satisfying the selector, the first will be used. See working with selectors for more details.
+   * @param options 
+   */
+  textContent(selector: string, options?: {
+    /**
+     * Maximum time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+  }): Promise<null|string>;
+
+  /**
+   * Returns the page title.
+   */
+  title(): Promise<string>;
+
+  /**
+   * Sends a `keydown`, `keypress`/`input`, and `keyup` event for each character in the text. `frame.type` can be used to send fine-grained keyboard events. To fill values in form fields, use `frame.fill(selector, value[, options])`.
+   * To press a special key, like `Control` or `ArrowDown`, use `keyboard.press(key[, options])`.
+   * ```js
+   * await frame.type('#mytextarea', 'Hello'); // Types instantly
+   * await frame.type('#mytextarea', 'World', {delay: 100}); // Types slower, like a user
+   * ```
+   * @param selector A selector to search for element. If there are multiple elements satisfying the selector, the first will be used. See working with selectors for more details.
+   * @param text A text to type into a focused element.
+   * @param options 
+   */
+  type(selector: string, text: string, options?: {
+    /**
+     * Time to wait between key presses in milliseconds. Defaults to 0.
+     */
+    delay?: number;
+
+    /**
+     * Actions that initiate navigations are waiting for these navigations to happen and for pages to start loading. You can opt out of waiting via setting this flag. You would only need this option in the exceptional cases such as navigating to inaccessible pages. Defaults to `false`.
+     */
+    noWaitAfter?: boolean;
+
+    /**
+     * Maximum time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+  }): Promise<void>;
+
+  /**
+   * This method checks an element matching `selector` by performing the following steps:
+   * 
+   * Find an element match matching `selector`. If there is none, wait until a matching element is attached to the DOM.
+   * Ensure that matched element is a checkbox or a radio input. If not, this method rejects. If the element is already unchecked, this method returns immediately.
+   * Wait for actionability checks on the matched element, unless `force` option is set. If the element is detached during the checks, the whole action is retried.
+   * Scroll the element into view if needed.
+   * Use page.mouse to click in the center of the element.
+   * Wait for initiated navigations to either succeed or fail, unless `noWaitAfter` option is set.
+   * Ensure that the element is now unchecked. If not, this method rejects.
+   * 
+   * When all steps combined have not finished during the specified `timeout`, this method rejects with a TimeoutError. Passing zero timeout disables this.
+   * @param selector A selector to search for element. If there are multiple elements satisfying the selector, the first will be used. See working with selectors for more details.
+   * @param options 
+   */
+  uncheck(selector: string, options?: {
+    /**
+     * Whether to bypass the actionability checks. Defaults to `false`.
+     */
+    force?: boolean;
+
+    /**
+     * Actions that initiate navigations are waiting for these navigations to happen and for pages to start loading. You can opt out of waiting via setting this flag. You would only need this option in the exceptional cases such as navigating to inaccessible pages. Defaults to `false`.
+     */
+    noWaitAfter?: boolean;
+
+    /**
+     * Maximum time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+  }): Promise<void>;
+
+  /**
+   * Returns frame's url.
+   */
+  url(): string;
+
+  /**
+   * Waits for the required load state to be reached.
+   * This returns when the frame reaches a required load state, `load` by default. The navigation must have been committed when this method is called. If current document has already reached the required state, resolves immediately.
+   * ```js
+   * await frame.click('button'); // Click triggers navigation.
+   * await frame.waitForLoadState(); // Waits for 'load' state by default.
+   * ```
+   * @param state Load state to wait for, defaults to `load`. If the state has been already reached while loading current document, the method returns immediately. Optional.  - `'load'` - wait for the `load` event to be fired.
+   *  - `'domcontentloaded'` - wait for the `DOMContentLoaded` event to be fired.
+   *  - `'networkidle'` - wait until there are no network connections for at least `500` ms.
+   * @param options 
+   */
+  waitForLoadState(state?: "domcontentloaded"|"load"|"networkidle", options?: {
+    /**
+     * Maximum operation time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultNavigationTimeout(timeout)`, `browserContext.setDefaultTimeout(timeout)`, `page.setDefaultNavigationTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+  }): Promise<void>;
+
+  /**
+   * Returns the main resource response. In case of multiple redirects, the navigation will resolve with the response of the last redirect. In case of navigation to a different anchor or navigation due to History API usage, the navigation will resolve with `null`.
+   * This method waits for the frame to navigate to a new URL. It is useful for when you run code which will indirectly cause the frame to navigate. Consider this example:
+   * ```js
+   * const [response] = await Promise.all([
+   *   frame.waitForNavigation(), // Wait for the navigation to finish
+   *   frame.click('a.my-link'), // Clicking the link will indirectly cause a navigation
+   * ]);
+   * ```
+   * **NOTE** Usage of the History API to change the URL is considered a navigation.
+   * @param options 
+   */
+  waitForNavigation(options?: {
+    /**
+     * Maximum operation time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultNavigationTimeout(timeout)`, `browserContext.setDefaultTimeout(timeout)`, `page.setDefaultNavigationTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+
+    /**
+     * URL string, URL regex pattern or predicate receiving URL to match while waiting for the navigation.
+     */
+    url?: string|RegExp|Function;
+
+    /**
+     * When to consider operation succeeded, defaults to `load`. Events can be either:
+     *  - `'domcontentloaded'` - consider operation to be finished when the `DOMContentLoaded` event is fired.
+     *  - `'load'` - consider operation to be finished when the `load` event is fired.
+     *  - `'networkidle'` - consider operation to be finished when there are no network connections for at least `500` ms.
+     */
+    waitUntil?: "domcontentloaded"|"load"|"networkidle";
+  }): Promise<null|Response>;
+
+  /**
+   * Waits for the given `timeout` in milliseconds.
+   * Note that `frame.waitForTimeout()` should only be used for debugging. Tests using the timer in production are going to be flaky. Use signals such as network events, selectors becoming visible and others instead.
+   * @param timeout A timeout to wait for
+   */
+  waitForTimeout(timeout: number): Promise<void>;}
+
+/**
+ * BrowserContexts provide a way to operate multiple independent browser sessions.
+ * If a page opens another page, e.g. with a `window.open` call, the popup will belong to the parent page's browser context.
+ * Playwright allows creation of "incognito" browser contexts with `browser.newContext()` method. "Incognito" browser contexts don't write any browsing data to disk.
+ * ```js
+ * // Create a new incognito browser context
+ * const context = await browser.newContext();
+ * // Create a new page inside context.
+ * const page = await context.newPage();
+ * await page.goto('https://example.com');
+ * // Dispose context once it's no longer needed.
+ * await context.close();
+ * ```
+ */
+export interface BrowserContext {
+  /**
+   * The method adds a function called `name` on the `window` object of every frame in every page in the context. When called, the function executes `playwrightBinding` and returns a Promise which resolves to the return value of `playwrightBinding`. If the `playwrightBinding` returns a Promise, it will be awaited.
+   * The first argument of the `playwrightBinding` function contains information about the caller: `{ browserContext: BrowserContext, page: Page, frame: Frame }`.
+   * See `page.exposeBinding(name, playwrightBinding[, options])` for page-only version.
+   * An example of exposing page URL to all frames in all pages in the context:
+   * ```js
+   * const { webkit } = require('playwright');  // Or 'chromium' or 'firefox'.
+   * 
+   * (async () => {
+   *   const browser = await webkit.launch({ headless: false });
+   *   const context = await browser.newContext();
+   *   await context.exposeBinding('pageURL', ({ page }) => page.url());
+   *   const page = await context.newPage();
+   *   await page.setContent(`
+   *     <script>
+   *       async function onClick() {
+   *         document.querySelector('div').textContent = await window.pageURL();
+   *       }
+   *     </script>
+   *     <button onclick="onClick()">Click me</button>
+   *     <div></div>
+   *   `);
+   *   await page.click('button');
+   * })();
+   * ```
+   * An example of passing an element handle:
+   * ```js
+   * await context.exposeBinding('clicked', async (source, element) => {
+   *   console.log(await element.textContent());
+   * }, { handle: true });
+   * await page.setContent(`
+   *   <script>
+   *     document.addEventListener('click', event => window.clicked(event.target));
+   *   </script>
+   *   <div>Click me</div>
+   *   <div>Or click me</div>
+   * `);
+   * ```
+   * @param name Name of the function on the window object.
+   * @param playwrightBinding Callback function that will be called in the Playwright's context.
+   * @param options 
+   */
+  exposeBinding(name: string, playwrightBinding: (source: BindingSource, arg: JSHandle) => any, options: { handle: true }): Promise<void>;
+  exposeBinding(name: string, playwrightBinding: (source: BindingSource, ...args: any[]) => any, options?: { handle?: boolean }): Promise<void>;
+  on(event: 'close', listener: () => void): this;
+
+  /**
+   * The event is emitted when a new Page is created in the BrowserContext. The page may still be loading. The event will also fire for popup pages. See also page.on('popup') to receive events about popups relevant to a specific page.
+   * The earliest moment that page is available is when it has navigated to the initial url. For example, when opening a popup with `window.open('http://example.com')`, this event will fire when the network request to "http://example.com" is done and its response has started loading in the popup.
+   * ```js
+   * const [page] = await Promise.all([
+   *   context.waitForEvent('page'),
+   *   page.click('a[target=_blank]'),
+   * ]);
+   * console.log(await page.evaluate('location.href'));
+   * ```
+   * 
+   * **NOTE** Use `page.waitForLoadState([state, options])` to wait until the page gets to a particular state (you should not need it in most cases).
+   */
+  on(event: 'page', listener: (page: Page) => void): this;
+
+  once(event: 'close', listener: () => void): this;
+
+  /**
+   * The event is emitted when a new Page is created in the BrowserContext. The page may still be loading. The event will also fire for popup pages. See also page.on('popup') to receive events about popups relevant to a specific page.
+   * The earliest moment that page is available is when it has navigated to the initial url. For example, when opening a popup with `window.open('http://example.com')`, this event will fire when the network request to "http://example.com" is done and its response has started loading in the popup.
+   * ```js
+   * const [page] = await Promise.all([
+   *   context.waitForEvent('page'),
+   *   page.click('a[target=_blank]'),
+   * ]);
+   * console.log(await page.evaluate('location.href'));
+   * ```
+   * 
+   * **NOTE** Use `page.waitForLoadState([state, options])` to wait until the page gets to a particular state (you should not need it in most cases).
+   */
+  once(event: 'page', listener: (page: Page) => void): this;
+
+  addListener(event: 'close', listener: () => void): this;
+
+  /**
+   * The event is emitted when a new Page is created in the BrowserContext. The page may still be loading. The event will also fire for popup pages. See also page.on('popup') to receive events about popups relevant to a specific page.
+   * The earliest moment that page is available is when it has navigated to the initial url. For example, when opening a popup with `window.open('http://example.com')`, this event will fire when the network request to "http://example.com" is done and its response has started loading in the popup.
+   * ```js
+   * const [page] = await Promise.all([
+   *   context.waitForEvent('page'),
+   *   page.click('a[target=_blank]'),
+   * ]);
+   * console.log(await page.evaluate('location.href'));
+   * ```
+   * 
+   * **NOTE** Use `page.waitForLoadState([state, options])` to wait until the page gets to a particular state (you should not need it in most cases).
+   */
+  addListener(event: 'page', listener: (page: Page) => void): this;
+
+  removeListener(event: 'close', listener: () => void): this;
+
+  /**
+   * The event is emitted when a new Page is created in the BrowserContext. The page may still be loading. The event will also fire for popup pages. See also page.on('popup') to receive events about popups relevant to a specific page.
+   * The earliest moment that page is available is when it has navigated to the initial url. For example, when opening a popup with `window.open('http://example.com')`, this event will fire when the network request to "http://example.com" is done and its response has started loading in the popup.
+   * ```js
+   * const [page] = await Promise.all([
+   *   context.waitForEvent('page'),
+   *   page.click('a[target=_blank]'),
+   * ]);
+   * console.log(await page.evaluate('location.href'));
+   * ```
+   * 
+   * **NOTE** Use `page.waitForLoadState([state, options])` to wait until the page gets to a particular state (you should not need it in most cases).
+   */
+  removeListener(event: 'page', listener: (page: Page) => void): this;
+
+  off(event: 'close', listener: () => void): this;
+
+  /**
+   * The event is emitted when a new Page is created in the BrowserContext. The page may still be loading. The event will also fire for popup pages. See also page.on('popup') to receive events about popups relevant to a specific page.
+   * The earliest moment that page is available is when it has navigated to the initial url. For example, when opening a popup with `window.open('http://example.com')`, this event will fire when the network request to "http://example.com" is done and its response has started loading in the popup.
+   * ```js
+   * const [page] = await Promise.all([
+   *   context.waitForEvent('page'),
+   *   page.click('a[target=_blank]'),
+   * ]);
+   * console.log(await page.evaluate('location.href'));
+   * ```
+   * 
+   * **NOTE** Use `page.waitForLoadState([state, options])` to wait until the page gets to a particular state (you should not need it in most cases).
+   */
+  off(event: 'page', listener: (page: Page) => void): this;
+
+  /**
+   * Adds cookies into this browser context. All pages within this context will have these cookies installed. Cookies can be obtained via `browserContext.cookies([urls])`.
+   * ```js
+   * await browserContext.addCookies([cookieObject1, cookieObject2]);
+   * ```
+   * @param cookies 
+   */
+  addCookies(cookies: Array<{
+    /**
+     * **required**
+     */
+    name: string;
+
+    /**
+     * **required**
+     */
+    value: string;
+
+    /**
+     * either url or domain / path are required
+     */
+    url?: string;
+
+    /**
+     * either url or domain / path are required
+     */
+    domain?: string;
+
+    /**
+     * either url or domain / path are required
+     */
+    path?: string;
+
+    /**
+     * Unix time in seconds.
+     */
+    expires?: number;
+
+    httpOnly?: boolean;
+
+    secure?: boolean;
+
+    sameSite?: "Lax"|"None"|"Strict";
+  }>): Promise<void>;
+
+  /**
+   * Adds a script which would be evaluated in one of the following scenarios:
+   * 
+   * Whenever a page is created in the browser context or is navigated.
+   * Whenever a child frame is attached or navigated in any page in the browser context. In this case, the script is evaluated in the context of the newly attached frame.
+   * 
+   * The script is evaluated after the document was created but before any of its scripts were run. This is useful to amend the JavaScript environment, e.g. to seed `Math.random`.
+   * An example of overriding `Math.random` before the page loads:
+   * ```js
+   * // preload.js
+   * Math.random = () => 42;
+   * ```
+   * ```js
+   * // In your playwright script, assuming the preload.js file is in same directory.
+   * await browserContext.addInitScript({
+   *   path: 'preload.js'
+   * });
+   * ```
+   * 
+   * **NOTE** The order of evaluation of multiple scripts installed via `browserContext.addInitScript(script[, arg])` and `page.addInitScript(script[, arg])` is not defined.
+   * @param script Script to be evaluated in all pages in the browser context.
+   * @param arg Optional argument to pass to `script` (only supported when passing a function).
+   */
+  addInitScript(script: Function|string|{
+    /**
+     * Path to the JavaScript file. If `path` is a relative path, then it is resolved relative to the current working directory.
+     */
+    path?: string;
+
+    /**
+     * Raw script content.
+     */
+    content?: string;
+  }, arg?: Serializable): Promise<void>;
+
+  /**
+   * Returns the browser instance of the context. If it was launched as a persistent context null gets returned.
+   */
+  browser(): null|Browser;
+
+  /**
+   * Clears context cookies.
+   */
+  clearCookies(): Promise<void>;
+
+  /**
+   * Clears all permission overrides for the browser context.
+   * ```js
+   * const context = await browser.newContext();
+   * await context.grantPermissions(['clipboard-read']);
+   * // do stuff ..
+   * context.clearPermissions();
+   * ```
+   */
+  clearPermissions(): Promise<void>;
+
+  /**
+   * Closes the browser context. All the pages that belong to the browser context will be closed.
+   * 
+   * **NOTE** the default browser context cannot be closed.
+   */
+  close(): Promise<void>;
+
+  /**
+   * If no URLs are specified, this method returns all cookies. If URLs are specified, only cookies that affect those URLs are returned.
+   * @param urls Optional list of URLs.
+   */
+  cookies(urls?: string|Array<string>): Promise<Array<Cookie>>;
+
+  /**
+   * The method adds a function called `name` on the `window` object of every frame in every page in the context. When called, the function executes `playwrightFunction` and returns a Promise which resolves to the return value of `playwrightFunction`.
+   * If the `playwrightFunction` returns a Promise, it will be awaited.
+   * See `page.exposeFunction(name, playwrightFunction)` for page-only version.
+   * An example of adding an `md5` function to all pages in the context:
+   * ```js
+   * const { webkit } = require('playwright');  // Or 'chromium' or 'firefox'.
+   * const crypto = require('crypto');
+   * 
+   * (async () => {
+   *   const browser = await webkit.launch({ headless: false });
+   *   const context = await browser.newContext();
+   *   await context.exposeFunction('md5', text => crypto.createHash('md5').update(text).digest('hex'));
+   *   const page = await context.newPage();
+   *   await page.setContent(`
+   *     <script>
+   *       async function onClick() {
+   *         document.querySelector('div').textContent = await window.md5('PLAYWRIGHT');
+   *       }
+   *     </script>
+   *     <button onclick="onClick()">Click me</button>
+   *     <div></div>
+   *   `);
+   *   await page.click('button');
+   * })();
+   * ```
+   * @param name Name of the function on the window object.
+   * @param playwrightFunction Callback function that will be called in the Playwright's context.
+   */
+  exposeFunction(name: string, playwrightFunction: Function): Promise<void>;
+
+  /**
+   * Grants specified permissions to the browser context. Only grants corresponding permissions to the given origin if specified.
+   * @param permissions A permission or an array of permissions to grant. Permissions can be one of the following values:  - `'geolocation'`
+   *  - `'midi'`
+   *  - `'midi-sysex'` (system-exclusive midi)
+   *  - `'notifications'`
+   *  - `'push'`
+   *  - `'camera'`
+   *  - `'microphone'`
+   *  - `'background-sync'`
+   *  - `'ambient-light-sensor'`
+   *  - `'accelerometer'`
+   *  - `'gyroscope'`
+   *  - `'magnetometer'`
+   *  - `'accessibility-events'`
+   *  - `'clipboard-read'`
+   *  - `'clipboard-write'`
+   *  - `'payment-handler'`
+   * @param options 
+   */
+  grantPermissions(permissions: Array<string>, options?: {
+    /**
+     * The origin to grant permissions to, e.g. "https://example.com".
+     */
+    origin?: string;
+  }): Promise<void>;
+
+  /**
+   * Creates a new page in the browser context.
+   */
+  newPage(): Promise<Page>;
+
+  /**
+   * Returns all open pages in the context. Non visible pages, such as `"background_page"`, will not be listed here. You can find them using `chromiumBrowserContext.backgroundPages()`.
+   */
+  pages(): Array<Page>;
+
+  /**
+   * Routing provides the capability to modify network requests that are made by any page in the browser context. Once route is enabled, every request matching the url pattern will stall unless it's continued, fulfilled or aborted.
+   * An example of a naïve handler that aborts all image requests:
+   * ```js
+   * const context = await browser.newContext();
+   * await context.route('**\/*.{png,jpg,jpeg}', route => route.abort());
+   * const page = await context.newPage();
+   * await page.goto('https://example.com');
+   * await browser.close();
+   * ```
+   * or the same snippet using a regex pattern instead:
+   * ```js
+   * const context = await browser.newContext();
+   * await context.route(/(\.png$)|(\.jpg$)/, route => route.abort());
+   * const page = await context.newPage();
+   * await page.goto('https://example.com');
+   * await browser.close();
+   * ```
+   * Page routes (set up with `page.route(url, handler)`) take precedence over browser context routes when request matches both handlers.
+   * 
+   * **NOTE** Enabling routing disables http cache.
+   * @param url A glob pattern, regex pattern or predicate receiving URL to match while routing.
+   * @param handler handler function to route the request.
+   */
+  route(url: string|RegExp|((url: URL) => boolean), handler: ((route: Route, request: Request) => void)): Promise<void>;
+
+  /**
+   * This setting will change the default maximum navigation time for the following methods and related shortcuts:
+   * 
+   * `page.goBack([options])`
+   * `page.goForward([options])`
+   * `page.goto(url[, options])`
+   * `page.reload([options])`
+   * `page.setContent(html[, options])`
+   * `page.waitForNavigation([options])`
+   * 
+   * 
+   * **NOTE** `page.setDefaultNavigationTimeout(timeout)` and `page.setDefaultTimeout(timeout)` take priority over `browserContext.setDefaultNavigationTimeout(timeout)`.
+   * @param timeout Maximum navigation time in milliseconds
+   */
+  setDefaultNavigationTimeout(timeout: number): void;
+
+  /**
+   * This setting will change the default maximum time for all the methods accepting `timeout` option.
+   * 
+   * **NOTE** `page.setDefaultNavigationTimeout(timeout)`, `page.setDefaultTimeout(timeout)` and `browserContext.setDefaultNavigationTimeout(timeout)` take priority over `browserContext.setDefaultTimeout(timeout)`.
+   * @param timeout Maximum time in milliseconds
+   */
+  setDefaultTimeout(timeout: number): void;
+
+  /**
+   * The extra HTTP headers will be sent with every request initiated by any page in the context. These headers are merged with page-specific extra HTTP headers set with `page.setExtraHTTPHeaders(headers)`. If page overrides a particular header, page-specific header value will be used instead of the browser context header value.
+   * 
+   * **NOTE** `browserContext.setExtraHTTPHeaders` does not guarantee the order of headers in the outgoing requests.
+   * @param headers An object containing additional HTTP headers to be sent with every request. All header values must be strings.
+   */
+  setExtraHTTPHeaders(headers: { [key: string]: string; }): Promise<void>;
+
+  /**
+   * Sets the context's geolocation. Passing `null` or `undefined` emulates position unavailable.
+   * ```js
+   * await browserContext.setGeolocation({latitude: 59.95, longitude: 30.31667});
+   * ```
+   * 
+   * **NOTE** Consider using `browserContext.grantPermissions(permissions[, options])` to grant permissions for the browser context pages to read its geolocation.
+   * @param geolocation 
+   */
+  setGeolocation(geolocation: null|{
+    /**
+     * Latitude between -90 and 90. **required**
+     */
+    latitude: number;
+
+    /**
+     * Longitude between -180 and 180. **required**
+     */
+    longitude: number;
+
+    /**
+     * Non-negative accuracy value. Defaults to `0`.
+     */
+    accuracy?: number;
+  }): Promise<void>;
+
+  /**
+   * Provide credentials for HTTP authentication.
+   * 
+   * **NOTE** Browsers may cache credentials after successful authentication. Passing different credentials or passing `null` to disable authentication will be unreliable. To remove or replace credentials, create a new browser context instead.
+   * @param httpCredentials 
+   */
+  setHTTPCredentials(httpCredentials: null|{
+    /**
+     * **required**
+     */
+    username: string;
+
+    /**
+     * **required**
+     */
+    password: string;
+  }): Promise<void>;
+
+  /**
+   * @param offline Whether to emulate network being offline for the browser context.
+   */
+  setOffline(offline: boolean): Promise<void>;
+
+  /**
+   * Returns storage state for this browser context, contains current cookies and local storage snapshot.
+   * @param options 
+   */
+  storageState(options?: {
+    /**
+     * The file path to save the storage state to. If `path` is a relative path, then it is resolved relative to current working directory. If no path is provided, storage state is still returned, but won't be saved to the disk.
+     */
+    path?: string;
+  }): Promise<{
+    cookies: Array<{
+      name: string;
+
+      value: string;
+
+      domain: string;
+
+      path: string;
+
+      /**
+       * Unix time in seconds.
+       */
+      expires: number;
+
+      httpOnly: boolean;
+
+      secure: boolean;
+
+      sameSite: "Lax"|"None"|"Strict";
+    }>;
+
+    origins: Array<{
+      origin: string;
+
+      localStorage: Array<{
+        name: string;
+
+        value: string;
+      }>;
+    }>;
+  }>;
+
+  /**
+   * Removes a route created with `browserContext.route(url, handler)`. When `handler` is not specified, removes all routes for the `url`.
+   * @param url A glob pattern, regex pattern or predicate receiving URL used to register a routing with `browserContext.route(url, handler)`.
+   * @param handler Optional handler function used to register a routing with `browserContext.route(url, handler)`.
+   */
+  unroute(url: string|RegExp|((url: URL) => boolean), handler?: ((route: Route, request: Request) => void)): Promise<void>;
+
+  waitForEvent(event: 'close', optionsOrPredicate?: { predicate?: () => boolean, timeout?: number } | (() => boolean)): Promise<void>;
+
+  /**
+   * The event is emitted when a new Page is created in the BrowserContext. The page may still be loading. The event will also fire for popup pages. See also page.on('popup') to receive events about popups relevant to a specific page.
+   * The earliest moment that page is available is when it has navigated to the initial url. For example, when opening a popup with `window.open('http://example.com')`, this event will fire when the network request to "http://example.com" is done and its response has started loading in the popup.
+   * ```js
+   * const [page] = await Promise.all([
+   *   context.waitForEvent('page'),
+   *   page.click('a[target=_blank]'),
+   * ]);
+   * console.log(await page.evaluate('location.href'));
+   * ```
+   * 
+   * **NOTE** Use `page.waitForLoadState([state, options])` to wait until the page gets to a particular state (you should not need it in most cases).
+   */
+  waitForEvent(event: 'page', optionsOrPredicate?: { predicate?: (page: Page) => boolean, timeout?: number } | ((page: Page) => boolean)): Promise<Page>;
+}
+
+/**
+ * The Worker class represents a WebWorker. `worker` event is emitted on the page object to signal a worker creation. `close` event is emitted on the worker object when the worker is gone.
+ * ```js
+ * page.on('worker', worker => {
+ *   console.log('Worker created: ' + worker.url());
+ *   worker.on('close', worker => console.log('Worker destroyed: ' + worker.url()));
+ * });
+ * 
+ * console.log('Current workers:');
+ * for (const worker of page.workers())
+ *   console.log('  ' + worker.url());
+ * ```
+ */
+export interface Worker {
+  /**
+   * Returns the return value of `pageFunction`
+   * If the function passed to the `worker.evaluate` returns a Promise, then `worker.evaluate` would wait for the promise to resolve and return its value.
+   * If the function passed to the `worker.evaluate` returns a non-Serializable value, then `worker.evaluate` returns `undefined`. DevTools Protocol also supports transferring some additional values that are not serializable by `JSON`: `-0`, `NaN`, `Infinity`, `-Infinity`, and bigint literals.
+   * @param pageFunction Function to be evaluated in the worker context
+   * @param arg Optional argument to pass to `pageFunction`
+   */
+  evaluate<R, Arg>(pageFunction: PageFunction<Arg, R>, arg: Arg): Promise<R>;
+  evaluate<R>(pageFunction: PageFunction<void, R>, arg?: any): Promise<R>;
+
+  /**
+   * Returns the return value of `pageFunction` as in-page object (JSHandle).
+   * The only difference between `worker.evaluate` and `worker.evaluateHandle` is that `worker.evaluateHandle` returns in-page object (JSHandle).
+   * If the function passed to the `worker.evaluateHandle` returns a Promise, then `worker.evaluateHandle` would wait for the promise to resolve and return its value.
+   * @param pageFunction Function to be evaluated in the page context
+   * @param arg Optional argument to pass to `pageFunction`
+   */
+  evaluateHandle<R, Arg>(pageFunction: PageFunction<Arg, R>, arg: Arg): Promise<SmartHandle<R>>;
+  evaluateHandle<R>(pageFunction: PageFunction<void, R>, arg?: any): Promise<SmartHandle<R>>;
+  /**
+   * Emitted when this dedicated WebWorker is terminated.
+   */
+  on(event: 'close', listener: (worker: Worker) => void): this;
+
+  /**
+   * Emitted when this dedicated WebWorker is terminated.
+   */
+  once(event: 'close', listener: (worker: Worker) => void): this;
+
+  /**
+   * Emitted when this dedicated WebWorker is terminated.
+   */
+  addListener(event: 'close', listener: (worker: Worker) => void): this;
+
+  /**
+   * Emitted when this dedicated WebWorker is terminated.
+   */
+  removeListener(event: 'close', listener: (worker: Worker) => void): this;
+
+  /**
+   * Emitted when this dedicated WebWorker is terminated.
+   */
+  off(event: 'close', listener: (worker: Worker) => void): this;
+
+  url(): string;}
+
+/**
+ * JSHandle represents an in-page JavaScript object. JSHandles can be created with the `page.evaluateHandle(pageFunction[, arg])` method.
+ * ```js
+ * const windowHandle = await page.evaluateHandle(() => window);
+ * // ...
+ * ```
+ * JSHandle prevents the referenced JavaScript object being garbage collected unless the handle is exposed with `jsHandle.dispose()`. JSHandles are auto-disposed when their origin frame gets navigated or the parent context gets destroyed.
+ * JSHandle instances can be used as an argument in `page.$eval(selector, pageFunction[, arg])`, `page.evaluate(pageFunction[, arg])` and `page.evaluateHandle(pageFunction[, arg])` methods.
+ */
+export interface JSHandle<T = any> {
+  /**
+   * Returns the return value of `pageFunction`
+   * This method passes this handle as the first argument to `pageFunction`.
+   * If `pageFunction` returns a Promise, then `handle.evaluate` would wait for the promise to resolve and return its value.
+   * Examples:
+   * ```js
+   * const tweetHandle = await page.$('.tweet .retweets');
+   * expect(await tweetHandle.evaluate((node, suffix) => node.innerText, ' retweets')).toBe('10 retweets');
+   * ```
+   * @param pageFunction Function to be evaluated in browser context
+   * @param arg Optional argument to pass to `pageFunction`
+   */
+  evaluate<R, Arg, O extends T = T>(pageFunction: PageFunctionOn<O, Arg, R>, arg: Arg): Promise<R>;
+  evaluate<R, O extends T = T>(pageFunction: PageFunctionOn<O, void, R>, arg?: any): Promise<R>;
+
+  /**
+   * Returns the return value of `pageFunction` as in-page object (JSHandle).
+   * This method passes this handle as the first argument to `pageFunction`.
+   * The only difference between `jsHandle.evaluate` and `jsHandle.evaluateHandle` is that `jsHandle.evaluateHandle` returns in-page object (JSHandle).
+   * If the function passed to the `jsHandle.evaluateHandle` returns a Promise, then `jsHandle.evaluateHandle` would wait for the promise to resolve and return its value.
+   * See `page.evaluateHandle(pageFunction[, arg])` for more details.
+   * @param pageFunction Function to be evaluated
+   * @param arg Optional argument to pass to `pageFunction`
+   */
+  evaluateHandle<R, Arg, O extends T = T>(pageFunction: PageFunctionOn<O, Arg, R>, arg: Arg): Promise<SmartHandle<R>>;
+  evaluateHandle<R, O extends T = T>(pageFunction: PageFunctionOn<O, void, R>, arg?: any): Promise<SmartHandle<R>>;
+
+  /**
+   * Returns a JSON representation of the object. If the object has a `toJSON` function, it **will not be called**.
+   * 
+   * **NOTE** The method will return an empty JSON object if the referenced object is not stringifiable. It will throw an error if the object has circular references.
+   */
+  jsonValue(): Promise<T>;
+  /**
+   * Returns either `null` or the object handle itself, if the object handle is an instance of ElementHandle.
+   */
+  asElement(): T extends Node ? ElementHandle<T> : null;
+  /**
+   * The `jsHandle.dispose` method stops referencing the element handle.
+   */
+  dispose(): Promise<void>;
+
+  /**
+   * The method returns a map with **own property names** as keys and JSHandle instances for the property values.
+   * ```js
+   * const handle = await page.evaluateHandle(() => ({window, document}));
+   * const properties = await handle.getProperties();
+   * const windowHandle = properties.get('window');
+   * const documentHandle = properties.get('document');
+   * await handle.dispose();
+   * ```
+   */
+  getProperties(): Promise<Map<string, JSHandle>>;
+
+  /**
+   * Fetches a single property from the referenced object.
+   * @param propertyName property to get
+   */
+  getProperty(propertyName: string): Promise<JSHandle>;}
+
+/**
+ * ElementHandle represents an in-page DOM element. ElementHandles can be created with the `page.$(selector)` method.
+ * ```js
+ * const { chromium } = require('playwright');  // Or 'firefox' or 'webkit'.
+ * 
+ * (async () => {
+ *   const browser = await chromium.launch();
+ *   const page = await browser.newPage();
+ *   await page.goto('https://example.com');
+ *   const hrefElement = await page.$('a');
+ *   await hrefElement.click();
+ *   // ...
+ * })();
+ * ```
+ * ElementHandle prevents DOM element from garbage collection unless the handle is disposed with `jsHandle.dispose()`. ElementHandles are auto-disposed when their origin frame gets navigated.
+ * ElementHandle instances can be used as an argument in `page.$eval(selector, pageFunction[, arg])` and `page.evaluate(pageFunction[, arg])` methods.
+ */
+export interface ElementHandle<T=Node> extends JSHandle<T> {
+  /**
+   * The method finds an element matching the specified selector in the `ElementHandle`'s subtree. See Working with selectors for more details. If no elements match the selector, returns `null`.
+   * @param selector A selector to query for. See working with selectors for more details.
+   */
+  $<K extends keyof HTMLElementTagNameMap>(selector: K): Promise<ElementHandleForTag<K> | null>;
+  $(selector: string): Promise<ElementHandle<SVGElement | HTMLElement> | null>;
+
+  /**
+   * The method finds all elements matching the specified selector in the `ElementHandle`s subtree. See Working with selectors for more details. If no elements match the selector, returns empty array.
+   * @param selector A selector to query for. See working with selectors for more details.
+   */
+  $$<K extends keyof HTMLElementTagNameMap>(selector: K): Promise<ElementHandleForTag<K>[]>;
+  $$(selector: string): Promise<ElementHandle<SVGElement | HTMLElement>[]>;
+
+  /**
+   * Returns the return value of `pageFunction`
+   * The method finds an element matching the specified selector in the `ElementHandle`s subtree and passes it as a first argument to `pageFunction`. See Working with selectors for more details. If no elements match the selector, the method throws an error.
+   * If `pageFunction` returns a Promise, then `frame.$eval` would wait for the promise to resolve and return its value.
+   * Examples:
+   * ```js
+   * const tweetHandle = await page.$('.tweet');
+   * expect(await tweetHandle.$eval('.like', node => node.innerText)).toBe('100');
+   * expect(await tweetHandle.$eval('.retweets', node => node.innerText)).toBe('10');
+   * ```
+   * @param selector A selector to query for. See working with selectors for more details.
+   * @param pageFunction Function to be evaluated in browser context
+   * @param arg Optional argument to pass to `pageFunction`
+   */
+  $eval<K extends keyof HTMLElementTagNameMap, R, Arg>(selector: K, pageFunction: PageFunctionOn<HTMLElementTagNameMap[K], Arg, R>, arg: Arg): Promise<R>;
+  $eval<R, Arg, E extends SVGElement | HTMLElement = SVGElement | HTMLElement>(selector: string, pageFunction: PageFunctionOn<E, Arg, R>, arg: Arg): Promise<R>;
+  $eval<K extends keyof HTMLElementTagNameMap, R>(selector: K, pageFunction: PageFunctionOn<HTMLElementTagNameMap[K], void, R>, arg?: any): Promise<R>;
+  $eval<R, E extends SVGElement | HTMLElement = SVGElement | HTMLElement>(selector: string, pageFunction: PageFunctionOn<E, void, R>, arg?: any): Promise<R>;
+
+  /**
+   * Returns the return value of `pageFunction`
+   * The method finds all elements matching the specified selector in the `ElementHandle`'s subtree and passes an array of matched elements as a first argument to `pageFunction`. See Working with selectors for more details.
+   * If `pageFunction` returns a Promise, then `frame.$$eval` would wait for the promise to resolve and return its value.
+   * Examples:
+   * ```html
+   * <div class="feed">
+   *   <div class="tweet">Hello!</div>
+   *   <div class="tweet">Hi!</div>
+   * </div>
+   * ```
+   * ```js
+   * const feedHandle = await page.$('.feed');
+   * expect(await feedHandle.$$eval('.tweet', nodes => nodes.map(n => n.innerText))).toEqual(['Hello!', 'Hi!']);
+   * ```
+   * @param selector A selector to query for. See working with selectors for more details.
+   * @param pageFunction Function to be evaluated in browser context
+   * @param arg Optional argument to pass to `pageFunction`
+   */
+  $$eval<K extends keyof HTMLElementTagNameMap, R, Arg>(selector: K, pageFunction: PageFunctionOn<HTMLElementTagNameMap[K][], Arg, R>, arg: Arg): Promise<R>;
+  $$eval<R, Arg, E extends SVGElement | HTMLElement = SVGElement | HTMLElement>(selector: string, pageFunction: PageFunctionOn<E[], Arg, R>, arg: Arg): Promise<R>;
+  $$eval<K extends keyof HTMLElementTagNameMap, R>(selector: K, pageFunction: PageFunctionOn<HTMLElementTagNameMap[K][], void, R>, arg?: any): Promise<R>;
+  $$eval<R, E extends SVGElement | HTMLElement = SVGElement | HTMLElement>(selector: string, pageFunction: PageFunctionOn<E[], void, R>, arg?: any): Promise<R>;
+
+  /**
+   * Returns element specified by selector satisfies `state` option. Returns `null` if waiting for `hidden` or `detached`.
+   * Wait for the `selector` relative to the element handle to satisfy `state` option (either appear/disappear from dom, or become visible/hidden). If at the moment of calling the method `selector` already satisfies the condition, the method will return immediately. If the selector doesn't satisfy the condition for the `timeout` milliseconds, the function will throw.
+   * ```js
+   * await page.setContent(`<div><span></span></div>`);
+   * const div = await page.$('div');
+   * // Waiting for the 'span' selector relative to the div.
+   * const span = await div.waitForSelector('span', { state: 'attached' });
+   * ```
+   * 
+   * **NOTE** This method does not work across navigations, use `page.waitForSelector(selector[, options])` instead.
+   * @param selector A selector to query for. See working with selectors for more details.
+   * @param options 
+   */
+  waitForSelector<K extends keyof HTMLElementTagNameMap>(selector: K, options?: ElementHandleWaitForSelectorOptionsNotHidden): Promise<ElementHandleForTag<K>>;
+  waitForSelector(selector: string, options?: ElementHandleWaitForSelectorOptionsNotHidden): Promise<ElementHandle<SVGElement | HTMLElement>>;
+  waitForSelector<K extends keyof HTMLElementTagNameMap>(selector: K, options: ElementHandleWaitForSelectorOptions): Promise<ElementHandleForTag<K> | null>;
+  waitForSelector(selector: string, options: ElementHandleWaitForSelectorOptions): Promise<null|ElementHandle<SVGElement | HTMLElement>>;
+  /**
+   * This method returns the bounding box of the element, or `null` if the element is not visible. The bounding box is calculated relative to the main frame viewport - which is usually the same as the browser window.
+   * Scrolling affects the returned bonding box, similarly to Element.getBoundingClientRect. That means `x` and/or `y` may be negative.
+   * Elements from child frames return the bounding box relative to the main frame, unlike the Element.getBoundingClientRect.
+   * Assuming the page is static, it is safe to use bounding box coordinates to perform input. For example, the following snippet should click the center of the element.
+   * ```js
+   * const box = await elementHandle.boundingBox();
+   * await page.mouse.click(box.x + box.width / 2, box.y + box.height / 2);
+   * ```
+   */
+  boundingBox(): Promise<null|{
+    /**
+     * the x coordinate of the element in pixels.
+     */
+    x: number;
+
+    /**
+     * the y coordinate of the element in pixels.
+     */
+    y: number;
+
+    /**
+     * the width of the element in pixels.
+     */
+    width: number;
+
+    /**
+     * the height of the element in pixels.
+     */
+    height: number;
+  }>;
+
+  /**
+   * This method checks the element by performing the following steps:
+   * 
+   * Ensure that element is a checkbox or a radio input. If not, this method rejects. If the element is already checked, this method returns immediately.
+   * Wait for actionability checks on the element, unless `force` option is set.
+   * Scroll the element into view if needed.
+   * Use page.mouse to click in the center of the element.
+   * Wait for initiated navigations to either succeed or fail, unless `noWaitAfter` option is set.
+   * Ensure that the element is now checked. If not, this method rejects.
+   * 
+   * If the element is detached from the DOM at any moment during the action, this method rejects.
+   * When all steps combined have not finished during the specified `timeout`, this method rejects with a TimeoutError. Passing zero timeout disables this.
+   * @param options 
+   */
+  check(options?: {
+    /**
+     * Whether to bypass the actionability checks. Defaults to `false`.
+     */
+    force?: boolean;
+
+    /**
+     * Actions that initiate navigations are waiting for these navigations to happen and for pages to start loading. You can opt out of waiting via setting this flag. You would only need this option in the exceptional cases such as navigating to inaccessible pages. Defaults to `false`.
+     */
+    noWaitAfter?: boolean;
+
+    /**
+     * Maximum time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+  }): Promise<void>;
+
+  /**
+   * This method clicks the element by performing the following steps:
+   * 
+   * Wait for actionability checks on the element, unless `force` option is set.
+   * Scroll the element into view if needed.
+   * Use page.mouse to click in the center of the element, or the specified `position`.
+   * Wait for initiated navigations to either succeed or fail, unless `noWaitAfter` option is set.
+   * 
+   * If the element is detached from the DOM at any moment during the action, this method rejects.
+   * When all steps combined have not finished during the specified `timeout`, this method rejects with a TimeoutError. Passing zero timeout disables this.
+   * @param options 
+   */
+  click(options?: {
+    /**
+     * Defaults to `left`.
+     */
+    button?: "left"|"middle"|"right";
+
+    /**
+     * defaults to 1. See UIEvent.detail.
+     */
+    clickCount?: number;
+
+    /**
+     * Time to wait between `mousedown` and `mouseup` in milliseconds. Defaults to 0.
+     */
+    delay?: number;
+
+    /**
+     * Whether to bypass the actionability checks. Defaults to `false`.
+     */
+    force?: boolean;
+
+    /**
+     * Modifier keys to press. Ensures that only these modifiers are pressed during the operation, and then restores current modifiers back. If not specified, currently pressed modifiers are used.
+     */
+    modifiers?: Array<"Alt"|"Control"|"Meta"|"Shift">;
+
+    /**
+     * Actions that initiate navigations are waiting for these navigations to happen and for pages to start loading. You can opt out of waiting via setting this flag. You would only need this option in the exceptional cases such as navigating to inaccessible pages. Defaults to `false`.
+     */
+    noWaitAfter?: boolean;
+
+    /**
+     * A point to use relative to the top-left corner of element padding box. If not specified, uses some visible point of the element.
+     */
+    position?: {
+      x: number;
+
+      y: number;
+    };
+
+    /**
+     * Maximum time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+  }): Promise<void>;
+
+  /**
+   * Returns the content frame for element handles referencing iframe nodes, or `null` otherwise
+   */
+  contentFrame(): Promise<null|Frame>;
+
+  /**
+   * This method double clicks the element by performing the following steps:
+   * 
+   * Wait for actionability checks on the element, unless `force` option is set.
+   * Scroll the element into view if needed.
+   * Use page.mouse to double click in the center of the element, or the specified `position`.
+   * Wait for initiated navigations to either succeed or fail, unless `noWaitAfter` option is set. Note that if the first click of the `dblclick()` triggers a navigation event, this method will reject.
+   * 
+   * If the element is detached from the DOM at any moment during the action, this method rejects.
+   * When all steps combined have not finished during the specified `timeout`, this method rejects with a TimeoutError. Passing zero timeout disables this.
+   * 
+   * **NOTE** `elementHandle.dblclick()` dispatches two `click` events and a single `dblclick` event.
+   * @param options 
+   */
+  dblclick(options?: {
+    /**
+     * Defaults to `left`.
+     */
+    button?: "left"|"middle"|"right";
+
+    /**
+     * Time to wait between `mousedown` and `mouseup` in milliseconds. Defaults to 0.
+     */
+    delay?: number;
+
+    /**
+     * Whether to bypass the actionability checks. Defaults to `false`.
+     */
+    force?: boolean;
+
+    /**
+     * Modifier keys to press. Ensures that only these modifiers are pressed during the operation, and then restores current modifiers back. If not specified, currently pressed modifiers are used.
+     */
+    modifiers?: Array<"Alt"|"Control"|"Meta"|"Shift">;
+
+    /**
+     * Actions that initiate navigations are waiting for these navigations to happen and for pages to start loading. You can opt out of waiting via setting this flag. You would only need this option in the exceptional cases such as navigating to inaccessible pages. Defaults to `false`.
+     */
+    noWaitAfter?: boolean;
+
+    /**
+     * A point to use relative to the top-left corner of element padding box. If not specified, uses some visible point of the element.
+     */
+    position?: {
+      x: number;
+
+      y: number;
+    };
+
+    /**
+     * Maximum time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+  }): Promise<void>;
+
+  /**
+   * The snippet below dispatches the `click` event on the element. Regardless of the visibility state of the elment, `click` is dispatched. This is equivalend to calling element.click().
+   * ```js
+   * await elementHandle.dispatchEvent('click');
+   * ```
+   * Under the hood, it creates an instance of an event based on the given `type`, initializes it with `eventInit` properties and dispatches it on the element. Events are `composed`, `cancelable` and bubble by default.
+   * Since `eventInit` is event-specific, please refer to the events documentation for the lists of initial properties:
+   * 
+   * DragEvent
+   * FocusEvent
+   * KeyboardEvent
+   * MouseEvent
+   * PointerEvent
+   * TouchEvent
+   * Event
+   * 
+   * You can also specify `JSHandle` as the property value if you want live objects to be passed into the event:
+   * ```js
+   * // Note you can only create DataTransfer in Chromium and Firefox
+   * const dataTransfer = await page.evaluateHandle(() => new DataTransfer());
+   * await elementHandle.dispatchEvent('dragstart', { dataTransfer });
+   * ```
+   * @param type DOM event type: `"click"`, `"dragstart"`, etc.
+   * @param eventInit Optional event-specific initialization properties.
+   */
+  dispatchEvent(type: string, eventInit?: EvaluationArgument): Promise<void>;
+
+  /**
+   * This method waits for actionability checks, focuses the element, fills it and triggers an `input` event after filling. If the element is not an `<input>`, `<textarea>` or `[contenteditable]` element, this method throws an error. Note that you can pass an empty string to clear the input field.
+   * @param value Value to set for the `<input>`, `<textarea>` or `[contenteditable]` element.
+   * @param options 
+   */
+  fill(value: string, options?: {
+    /**
+     * Actions that initiate navigations are waiting for these navigations to happen and for pages to start loading. You can opt out of waiting via setting this flag. You would only need this option in the exceptional cases such as navigating to inaccessible pages. Defaults to `false`.
+     */
+    noWaitAfter?: boolean;
+
+    /**
+     * Maximum time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+  }): Promise<void>;
+
+  /**
+   * Calls focus on the element.
+   */
+  focus(): Promise<void>;
+
+  /**
+   * Returns element attribute value.
+   * @param name Attribute name to get the value for.
+   */
+  getAttribute(name: string): Promise<null|string>;
+
+  /**
+   * This method hovers over the element by performing the following steps:
+   * 
+   * Wait for actionability checks on the element, unless `force` option is set.
+   * Scroll the element into view if needed.
+   * Use page.mouse to hover over the center of the element, or the specified `position`.
+   * Wait for initiated navigations to either succeed or fail, unless `noWaitAfter` option is set.
+   * 
+   * If the element is detached from the DOM at any moment during the action, this method rejects.
+   * When all steps combined have not finished during the specified `timeout`, this method rejects with a TimeoutError. Passing zero timeout disables this.
+   * @param options 
+   */
+  hover(options?: {
+    /**
+     * Whether to bypass the actionability checks. Defaults to `false`.
+     */
+    force?: boolean;
+
+    /**
+     * Modifier keys to press. Ensures that only these modifiers are pressed during the operation, and then restores current modifiers back. If not specified, currently pressed modifiers are used.
+     */
+    modifiers?: Array<"Alt"|"Control"|"Meta"|"Shift">;
+
+    /**
+     * A point to use relative to the top-left corner of element padding box. If not specified, uses some visible point of the element.
+     */
+    position?: {
+      x: number;
+
+      y: number;
+    };
+
+    /**
+     * Maximum time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+  }): Promise<void>;
+
+  /**
+   * Returns the `element.innerHTML`.
+   */
+  innerHTML(): Promise<string>;
+
+  /**
+   * Returns the `element.innerText`.
+   */
+  innerText(): Promise<string>;
+
+  /**
+   * Returns the frame containing the given element.
+   */
+  ownerFrame(): Promise<null|Frame>;
+
+  /**
+   * Focuses the element, and then uses `keyboard.down(key)` and `keyboard.up(key)`.
+   * `key` can specify the intended keyboardEvent.key value or a single character to generate the text for. A superset of the `key` values can be found here. Examples of the keys are:
+   * `F1` - `F12`, `Digit0`- `Digit9`, `KeyA`- `KeyZ`, `Backquote`, `Minus`, `Equal`, `Backslash`, `Backspace`, `Tab`, `Delete`, `Escape`, `ArrowDown`, `End`, `Enter`, `Home`, `Insert`, `PageDown`, `PageUp`, `ArrowRight`, `ArrowUp`, etc.
+   * Following modification shortcuts are also suported: `Shift`, `Control`, `Alt`, `Meta`, `ShiftLeft`.
+   * Holding down `Shift` will type the text that corresponds to the `key` in the upper case.
+   * If `key` is a single character, it is case-sensitive, so the values `a` and `A` will generate different respective texts.
+   * Shortcuts such as `key: "Control+o"` or `key: "Control+Shift+T"` are supported as well. When speficied with the modifier, modifier is pressed and being held while the subsequent key is being pressed.
+   * @param key Name of the key to press or a character to generate, such as `ArrowLeft` or `a`.
+   * @param options 
+   */
+  press(key: string, options?: {
+    /**
+     * Time to wait between `keydown` and `keyup` in milliseconds. Defaults to 0.
+     */
+    delay?: number;
+
+    /**
+     * Actions that initiate navigations are waiting for these navigations to happen and for pages to start loading. You can opt out of waiting via setting this flag. You would only need this option in the exceptional cases such as navigating to inaccessible pages. Defaults to `false`.
+     */
+    noWaitAfter?: boolean;
+
+    /**
+     * Maximum time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+  }): Promise<void>;
+
+  /**
+   * Returns the buffer with the captured screenshot.
+   * This method waits for the actionability checks, then scrolls element into view before taking a screenshot. If the element is detached from DOM, the method throws an error.
+   * @param options 
+   */
+  screenshot(options?: {
+    /**
+     * Hides default white background and allows capturing screenshots with transparency. Not applicable to `jpeg` images. Defaults to `false`.
+     */
+    omitBackground?: boolean;
+
+    /**
+     * The file path to save the image to. The screenshot type will be inferred from file extension. If `path` is a relative path, then it is resolved relative to the current working directory. If no path is provided, the image won't be saved to the disk.
+     */
+    path?: string;
+
+    /**
+     * The quality of the image, between 0-100. Not applicable to `png` images.
+     */
+    quality?: number;
+
+    /**
+     * Maximum time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+
+    /**
+     * Specify screenshot type, defaults to `png`.
+     */
+    type?: "jpeg"|"png";
+  }): Promise<Buffer>;
+
+  /**
+   * This method waits for actionability checks, then tries to scroll element into view, unless it is completely visible as defined by IntersectionObserver's `ratio`.
+   * Throws when `elementHandle` does not point to an element connected to a Document or a ShadowRoot.
+   * @param options 
+   */
+  scrollIntoViewIfNeeded(options?: {
+    /**
+     * Maximum time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+  }): Promise<void>;
+
+  /**
+   * Returns the array of option values that have been successfully selected.
+   * Triggers a `change` and `input` event once all the provided options have been selected. If element is not a `<select>` element, the method throws an error.
+   * ```js
+   * // single selection matching the value
+   * handle.selectOption('blue');
+   * 
+   * // single selection matching both the value and the label
+   * handle.selectOption({ label: 'Blue' });
+   * 
+   * // multiple selection
+   * handle.selectOption('red', 'green', 'blue');
+   * 
+   * // multiple selection for blue, red and second option
+   * handle.selectOption({ value: 'blue' }, { index: 2 }, 'red');
+   * ```
+   * @param values Options to select. If the `<select>` has the `multiple` attribute, all matching options are selected, otherwise only the first option matching one of the passed options is selected. String values are equivalent to `{value:'string'}`. Option is considered matching if all specified properties match.
+   * @param options 
+   */
+  selectOption(values: null|string|ElementHandle|Array<string>|{
+    /**
+     * Matches by `option.value`.
+     */
+    value?: string;
+
+    /**
+     * Matches by `option.label`.
+     */
+    label?: string;
+
+    /**
+     * Matches by the index.
+     */
+    index?: number;
+  }|Array<ElementHandle>|Array<{
+    /**
+     * Matches by `option.value`.
+     */
+    value?: string;
+
+    /**
+     * Matches by `option.label`.
+     */
+    label?: string;
+
+    /**
+     * Matches by the index.
+     */
+    index?: number;
+  }>, options?: {
+    /**
+     * Actions that initiate navigations are waiting for these navigations to happen and for pages to start loading. You can opt out of waiting via setting this flag. You would only need this option in the exceptional cases such as navigating to inaccessible pages. Defaults to `false`.
+     */
+    noWaitAfter?: boolean;
+
+    /**
+     * Maximum time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+  }): Promise<Array<string>>;
+
+  /**
+   * This method waits for actionability checks, then focuses the element and selects all its text content.
+   * @param options 
+   */
+  selectText(options?: {
+    /**
+     * Maximum time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+  }): Promise<void>;
+
+  /**
+   * This method expects `elementHandle` to point to an input element.
+   * Sets the value of the file input to these file paths or files. If some of the `filePaths` are relative paths, then they are resolved relative to the the current working directory. For empty array, clears the selected files.
+   * @param files 
+   * @param options 
+   */
+  setInputFiles(files: string|Array<string>|{
+    /**
+     * File name **required**
+     */
+    name: string;
+
+    /**
+     * File type **required**
+     */
+    mimeType: string;
+
+    /**
+     * File content **required**
+     */
+    buffer: Buffer;
+  }|Array<{
+    /**
+     * File name **required**
+     */
+    name: string;
+
+    /**
+     * File type **required**
+     */
+    mimeType: string;
+
+    /**
+     * File content **required**
+     */
+    buffer: Buffer;
+  }>, options?: {
+    /**
+     * Actions that initiate navigations are waiting for these navigations to happen and for pages to start loading. You can opt out of waiting via setting this flag. You would only need this option in the exceptional cases such as navigating to inaccessible pages. Defaults to `false`.
+     */
+    noWaitAfter?: boolean;
+
+    /**
+     * Maximum time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+  }): Promise<void>;
+
+  /**
+   * This method taps the element by performing the following steps:
+   * 
+   * Wait for actionability checks on the element, unless `force` option is set.
+   * Scroll the element into view if needed.
+   * Use page.touchscreen to tap in the center of the element, or the specified `position`.
+   * Wait for initiated navigations to either succeed or fail, unless `noWaitAfter` option is set.
+   * 
+   * If the element is detached from the DOM at any moment during the action, this method rejects.
+   * When all steps combined have not finished during the specified `timeout`, this method rejects with a TimeoutError. Passing zero timeout disables this.
+   * 
+   * **NOTE** `elementHandle.tap()` requires that the `hasTouch` option of the browser context be set to true.
+   * @param options 
+   */
+  tap(options?: {
+    /**
+     * Whether to bypass the actionability checks. Defaults to `false`.
+     */
+    force?: boolean;
+
+    /**
+     * Modifier keys to press. Ensures that only these modifiers are pressed during the operation, and then restores current modifiers back. If not specified, currently pressed modifiers are used.
+     */
+    modifiers?: Array<"Alt"|"Control"|"Meta"|"Shift">;
+
+    /**
+     * Actions that initiate navigations are waiting for these navigations to happen and for pages to start loading. You can opt out of waiting via setting this flag. You would only need this option in the exceptional cases such as navigating to inaccessible pages. Defaults to `false`.
+     */
+    noWaitAfter?: boolean;
+
+    /**
+     * A point to use relative to the top-left corner of element padding box. If not specified, uses some visible point of the element.
+     */
+    position?: {
+      x: number;
+
+      y: number;
+    };
+
+    /**
+     * Maximum time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+  }): Promise<void>;
+
+  /**
+   * Returns the `node.textContent`.
+   */
+  textContent(): Promise<null|string>;
+
+  toString(): string;
+
+  /**
+   * Focuses the element, and then sends a `keydown`, `keypress`/`input`, and `keyup` event for each character in the text.
+   * To press a special key, like `Control` or `ArrowDown`, use `elementHandle.press(key[, options])`.
+   * ```js
+   * await elementHandle.type('Hello'); // Types instantly
+   * await elementHandle.type('World', {delay: 100}); // Types slower, like a user
+   * ```
+   * An example of typing into a text field and then submitting the form:
+   * ```js
+   * const elementHandle = await page.$('input');
+   * await elementHandle.type('some text');
+   * await elementHandle.press('Enter');
+   * ```
+   * @param text A text to type into a focused element.
+   * @param options 
+   */
+  type(text: string, options?: {
+    /**
+     * Time to wait between key presses in milliseconds. Defaults to 0.
+     */
+    delay?: number;
+
+    /**
+     * Actions that initiate navigations are waiting for these navigations to happen and for pages to start loading. You can opt out of waiting via setting this flag. You would only need this option in the exceptional cases such as navigating to inaccessible pages. Defaults to `false`.
+     */
+    noWaitAfter?: boolean;
+
+    /**
+     * Maximum time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+  }): Promise<void>;
+
+  /**
+   * This method checks the element by performing the following steps:
+   * 
+   * Ensure that element is a checkbox or a radio input. If not, this method rejects. If the element is already unchecked, this method returns immediately.
+   * Wait for actionability checks on the element, unless `force` option is set.
+   * Scroll the element into view if needed.
+   * Use page.mouse to click in the center of the element.
+   * Wait for initiated navigations to either succeed or fail, unless `noWaitAfter` option is set.
+   * Ensure that the element is now unchecked. If not, this method rejects.
+   * 
+   * If the element is detached from the DOM at any moment during the action, this method rejects.
+   * When all steps combined have not finished during the specified `timeout`, this method rejects with a TimeoutError. Passing zero timeout disables this.
+   * @param options 
+   */
+  uncheck(options?: {
+    /**
+     * Whether to bypass the actionability checks. Defaults to `false`.
+     */
+    force?: boolean;
+
+    /**
+     * Actions that initiate navigations are waiting for these navigations to happen and for pages to start loading. You can opt out of waiting via setting this flag. You would only need this option in the exceptional cases such as navigating to inaccessible pages. Defaults to `false`.
+     */
+    noWaitAfter?: boolean;
+
+    /**
+     * Maximum time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+  }): Promise<void>;
+
+  /**
+   * Returns the element satisfies the `state`.
+   * Depending on the `state` parameter, this method waits for one of the actionability checks to pass. This method throws when the element is detached while waiting, unless waiting for the `"hidden"` state.
+   * 
+   * `"visible"` Wait until the element is visible.
+   * `"hidden"` Wait until the element is not visible or not attached. Note that waiting for hidden does not throw when the element detaches.
+   * `"stable"` Wait until the element is both visible and stable.
+   * `"enabled"` Wait until the element is enabled.
+   * `"disabled"` Wait until the element is not enabled.
+   * 
+   * If the element does not satisfy the condition for the `timeout` milliseconds, this method will throw.
+   * @param state A state to wait for, see below for more details.
+   * @param options 
+   */
+  waitForElementState(state: "disabled"|"enabled"|"hidden"|"stable"|"visible", options?: {
+    /**
+     * Maximum time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+  }): Promise<void>;}
+
+/**
+ * BrowserType provides methods to launch a specific browser instance or connect to an existing one. The following is a typical example of using Playwright to drive automation:
+ * ```js
+ * const { chromium } = require('playwright');  // Or 'firefox' or 'webkit'.
+ * 
+ * (async () => {
+ *   const browser = await chromium.launch();
+ *   const page = await browser.newPage();
+ *   await page.goto('https://example.com');
+ *   // other actions...
+ *   await browser.close();
+ * })();
+ * ```
+ */
+export interface BrowserType<Browser> {
+
+  /**
+   * This methods attaches Playwright to an existing browser instance.
+   * @param params 
+   */
+  connect(params: ConnectOptions): Promise<Browser>;
+
+  /**
+   * A path where Playwright expects to find a bundled browser executable.
+   */
+  executablePath(): string;
+
+  /**
+   * Returns the browser instance.
+   * You can use `ignoreDefaultArgs` to filter out `--mute-audio` from default arguments:
+   * ```js
+   * const browser = await chromium.launch({  // Or 'firefox' or 'webkit'.
+   *   ignoreDefaultArgs: ['--mute-audio']
+   * });
+   * ```
+   * 
+   * **Chromium-only** Playwright can also be used to control the Chrome browser, but it works best with the version of Chromium it is bundled with. There is no guarantee it will work with any other version. Use `executablePath` option with extreme caution.
+   * If Google Chrome (rather than Chromium) is preferred, a Chrome Canary or Dev Channel build is suggested.
+   * In `browserType.launch([options])` above, any mention of Chromium also applies to Chrome.
+   * See `this article` for a description of the differences between Chromium and Chrome. `This article` describes some differences for Linux users.
+   * @param options 
+   */
+  launch(options?: LaunchOptions): Promise<Browser>;
+
+  /**
+   * Returns the persistent browser context instance.
+   * Launches browser that uses persistent storage located at `userDataDir` and returns the only context. Closing this context will automatically close the browser.
+   * @param userDataDir Path to a User Data Directory, which stores browser session data like cookies and local storage. More details for Chromium and Firefox.
+   * @param options 
+   */
+  launchPersistentContext(userDataDir: string, options?: {
+    /**
+     * Whether to automatically download all the attachments. Defaults to `false` where all the downloads are canceled.
+     */
+    acceptDownloads?: boolean;
+
+    /**
+     * Additional arguments to pass to the browser instance. The list of Chromium flags can be found here.
+     */
+    args?: Array<string>;
+
+    /**
+     * Toggles bypassing page's Content-Security-Policy.
+     */
+    bypassCSP?: boolean;
+
+    /**
+     * Enable Chromium sandboxing. Defaults to `true`.
+     */
+    chromiumSandbox?: boolean;
+
+    /**
+     * Emulates `'prefers-colors-scheme'` media feature, supported values are `'light'`, `'dark'`, `'no-preference'`. See `page.emulateMedia(params)` for more details. Defaults to '`light`'.
+     */
+    colorScheme?: "dark"|"light"|"no-preference";
+
+    /**
+     * Specify device scale factor (can be thought of as dpr). Defaults to `1`.
+     */
+    deviceScaleFactor?: number;
+
+    /**
+     * **Chromium-only** Whether to auto-open a Developer Tools panel for each tab. If this option is `true`, the `headless` option will be set `false`.
+     */
+    devtools?: boolean;
+
+    /**
+     * If specified, accepted downloads are downloaded into this directory. Otherwise, temporary directory is created and is deleted when browser is closed.
+     */
+    downloadsPath?: string;
+
+    /**
+     * Specify environment variables that will be visible to the browser. Defaults to `process.env`.
+     */
+    env?: { [key: string]: string|number|boolean; };
+
+    /**
+     * Path to a browser executable to run instead of the bundled one. If `executablePath` is a relative path, then it is resolved relative to the current working directory. **BEWARE**: Playwright is only guaranteed to work with the bundled Chromium, Firefox or WebKit, use at your own risk.
+     */
+    executablePath?: string;
+
+    /**
+     * An object containing additional HTTP headers to be sent with every request. All header values must be strings.
+     */
+    extraHTTPHeaders?: { [key: string]: string; };
+
+    geolocation?: {
+      /**
+       * Latitude between -90 and 90.
+       */
+      latitude: number;
+
+      /**
+       * Longitude between -180 and 180.
+       */
+      longitude: number;
+
+      /**
+       * Non-negative accuracy value. Defaults to `0`.
+       */
+      accuracy?: number;
+    };
+
+    /**
+     * Close the browser process on SIGHUP. Defaults to `true`.
+     */
+    handleSIGHUP?: boolean;
+
+    /**
+     * Close the browser process on Ctrl-C. Defaults to `true`.
+     */
+    handleSIGINT?: boolean;
+
+    /**
+     * Close the browser process on SIGTERM. Defaults to `true`.
+     */
+    handleSIGTERM?: boolean;
+
+    /**
+     * Specifies if viewport supports touch events. Defaults to false.
+     */
+    hasTouch?: boolean;
+
+    /**
+     * Whether to run browser in headless mode. More details for Chromium and Firefox. Defaults to `true` unless the `devtools` option is `true`.
+     */
+    headless?: boolean;
+
+    /**
+     * Credentials for HTTP authentication.
+     */
+    httpCredentials?: {
+      username: string;
+
+      password: string;
+    };
+
+    /**
+     * If `true`, then do not use any of the default arguments. If an array is given, then filter out the given default arguments. Dangerous option; use with care. Defaults to `false`.
+     */
+    ignoreDefaultArgs?: boolean|Array<string>;
+
+    /**
+     * Whether to ignore HTTPS errors during navigation. Defaults to `false`.
+     */
+    ignoreHTTPSErrors?: boolean;
+
+    /**
+     * Whether the `meta viewport` tag is taken into account and touch events are enabled. Defaults to `false`. Not supported in Firefox.
+     */
+    isMobile?: boolean;
+
+    /**
+     * Whether or not to enable JavaScript in the context. Defaults to `true`.
+     */
+    javaScriptEnabled?: boolean;
+
+    /**
+     * Specify user locale, for example `en-GB`, `de-DE`, etc. Locale will affect `navigator.language` value, `Accept-Language` request header value as well as number and date formatting rules.
+     */
+    locale?: string;
+
+    /**
+     * Logger sink for Playwright logging.
+     */
+    logger?: Logger;
+
+    /**
+     * Whether to emulate network being offline. Defaults to `false`.
+     */
+    offline?: boolean;
+
+    /**
+     * A list of permissions to grant to all pages in this context. See `browserContext.grantPermissions(permissions[, options])` for more details.
+     */
+    permissions?: Array<string>;
+
+    /**
+     * Network proxy settings.
+     */
+    proxy?: {
+      /**
+       * Proxy to be used for all requests. HTTP and SOCKS proxies are supported, for example `http://myproxy.com:3128` or `socks5://myproxy.com:3128`. Short form `myproxy.com:3128` is considered an HTTP proxy.
+       */
+      server: string;
+
+      /**
+       * Optional coma-separated domains to bypass proxy, for example `".com, chromium.org, .domain.com"`.
+       */
+      bypass?: string;
+
+      /**
+       * Optional username to use if HTTP proxy requires authentication.
+       */
+      username?: string;
+
+      /**
+       * Optional password to use if HTTP proxy requires authentication.
+       */
+      password?: string;
+    };
+
+    /**
+     * Enables HAR recording for all pages into `recordHar.path` file. If not specified, the HAR is not recorded. Make sure to await `browserContext.close()` for the HAR to be saved.
+     */
+    recordHar?: {
+      /**
+       * Optional setting to control whether to omit request content from the HAR. Defaults to `false`.
+       */
+      omitContent?: boolean;
+
+      /**
+       * Path on the filesystem to write the HAR file to.
+       */
+      path: string;
+    };
+
+    /**
+     * Enables video recording for all pages into `recordVideo.dir` directory. If not specified videos are not recorded. Make sure to await `browserContext.close()` for videos to be saved.
+     */
+    recordVideo?: {
+      /**
+       * Path to the directory to put videos into.
+       */
+      dir: string;
+
+      /**
+       * Optional dimensions of the recorded videos. If not specified the size will be equal to `viewport`. If `viewport` is not configured explicitly the video size defaults to 1280x720. Actual picture of each page will be scaled down if necessary to fit the specified size.
+       */
+      size?: {
+        /**
+         * Video frame width.
+         */
+        width: number;
+
+        /**
+         * Video frame height.
+         */
+        height: number;
+      };
+    };
+
+    /**
+     * Slows down Playwright operations by the specified amount of milliseconds. Useful so that you can see what is going on. Defaults to 0.
+     */
+    slowMo?: number;
+
+    /**
+     * Maximum time in milliseconds to wait for the browser instance to start. Defaults to `30000` (30 seconds). Pass `0` to disable timeout.
+     */
+    timeout?: number;
+
+    /**
+     * Changes the timezone of the context. See ICU’s `metaZones.txt` for a list of supported timezone IDs.
+     */
+    timezoneId?: string;
+
+    /**
+     * Specific user agent to use in this context.
+     */
+    userAgent?: string;
+
+    /**
+     * **NOTE** Use `recordVideo` instead, it takes precedence over `videoSize`. Specifies dimensions of the automatically recorded video. Can only be used if `videosPath` is set. If not specified the size will be equal to `viewport`. If `viewport` is not configured explicitly the video size defaults to 1280x720. Actual picture of the page will be scaled down if necessary to fit specified size.
+     */
+    videoSize?: {
+      /**
+       * Video frame width.
+       */
+      width: number;
+
+      /**
+       * Video frame height.
+       */
+      height: number;
+    };
+
+    /**
+     * **NOTE** Use `recordVideo` instead, it takes precedence over `videosPath`. Enables video recording for all pages to `videosPath` directory. If not specified, videos are not recorded. Make sure to await `browserContext.close()` for videos to be saved.
+     */
+    videosPath?: string;
+
+    /**
+     * Sets a consistent viewport for each page. Defaults to an 1280x720 viewport. `null` disables the default viewport.
+     */
+    viewport?: null|{
+      /**
+       * page width in pixels.
+       */
+      width: number;
+
+      /**
+       * page height in pixels.
+       */
+      height: number;
+    };
+  }): Promise<BrowserContext>;
+
+  /**
+   * Returns the browser app instance.
+   * Launches browser server that client can connect to. An example of launching a browser executable and connecting to it later:
+   * ```js
+   * const { chromium } = require('playwright');  // Or 'webkit' or 'firefox'.
+   * 
+   * (async () => {
+   *   const browserServer = await chromium.launchServer();
+   *   const wsEndpoint = browserServer.wsEndpoint();
+   *   // Use web socket endpoint later to establish a connection.
+   *   const browser = await chromium.connect({ wsEndpoint });
+   *   // Close browser instance.
+   *   await browserServer.close();
+   * })();
+   * ```
+   * @param options 
+   */
+  launchServer(options?: {
+    /**
+     * Additional arguments to pass to the browser instance. The list of Chromium flags can be found here.
+     */
+    args?: Array<string>;
+
+    /**
+     * Enable Chromium sandboxing. Defaults to `true`.
+     */
+    chromiumSandbox?: boolean;
+
+    /**
+     * **Chromium-only** Whether to auto-open a Developer Tools panel for each tab. If this option is `true`, the `headless` option will be set `false`.
+     */
+    devtools?: boolean;
+
+    /**
+     * If specified, accepted downloads are downloaded into this directory. Otherwise, temporary directory is created and is deleted when browser is closed.
+     */
+    downloadsPath?: string;
+
+    /**
+     * Specify environment variables that will be visible to the browser. Defaults to `process.env`.
+     */
+    env?: { [key: string]: string|number|boolean; };
+
+    /**
+     * Path to a browser executable to run instead of the bundled one. If `executablePath` is a relative path, then it is resolved relative to the current working directory. **BEWARE**: Playwright is only guaranteed to work with the bundled Chromium, Firefox or WebKit, use at your own risk.
+     */
+    executablePath?: string;
+
+    /**
+     * Firefox user preferences. Learn more about the Firefox user preferences at `about:config`.
+     */
+    firefoxUserPrefs?: { [key: string]: string|number|boolean; };
+
+    /**
+     * Close the browser process on SIGHUP. Defaults to `true`.
+     */
+    handleSIGHUP?: boolean;
+
+    /**
+     * Close the browser process on Ctrl-C. Defaults to `true`.
+     */
+    handleSIGINT?: boolean;
+
+    /**
+     * Close the browser process on SIGTERM. Defaults to `true`.
+     */
+    handleSIGTERM?: boolean;
+
+    /**
+     * Whether to run browser in headless mode. More details for Chromium and Firefox. Defaults to `true` unless the `devtools` option is `true`.
+     */
+    headless?: boolean;
+
+    /**
+     * If `true`, then do not use any of the default arguments. If an array is given, then filter out the given default arguments. Dangerous option; use with care. Defaults to `false`.
+     */
+    ignoreDefaultArgs?: boolean|Array<string>;
+
+    /**
+     * Logger sink for Playwright logging.
+     */
+    logger?: Logger;
+
+    /**
+     * Port to use for the web socket. Defaults to 0 that picks any available port.
+     */
+    port?: number;
+
+    /**
+     * Network proxy settings.
+     */
+    proxy?: {
+      /**
+       * Proxy to be used for all requests. HTTP and SOCKS proxies are supported, for example `http://myproxy.com:3128` or `socks5://myproxy.com:3128`. Short form `myproxy.com:3128` is considered an HTTP proxy.
+       */
+      server: string;
+
+      /**
+       * Optional coma-separated domains to bypass proxy, for example `".com, chromium.org, .domain.com"`.
+       */
+      bypass?: string;
+
+      /**
+       * Optional username to use if HTTP proxy requires authentication.
+       */
+      username?: string;
+
+      /**
+       * Optional password to use if HTTP proxy requires authentication.
+       */
+      password?: string;
+    };
+
+    /**
+     * Maximum time in milliseconds to wait for the browser instance to start. Defaults to `30000` (30 seconds). Pass `0` to disable timeout.
+     */
+    timeout?: number;
+  }): Promise<BrowserServer>;
+
+  /**
+   * Returns browser name. For example: `'chromium'`, `'webkit'` or `'firefox'`.
+   */
+  name(): string;}
+
+/**
+ * Chromium-specific features including Tracing, service worker support, etc. You can use `chromiumBrowser.startTracing([page, options])` and `chromiumBrowser.stopTracing()` to create a trace file which can be opened in Chrome DevTools or timeline viewer.
+ * ```js
+ * await browser.startTracing(page, {path: 'trace.json'});
+ * await page.goto('https://www.google.com');
+ * await browser.stopTracing();
+ * ```
+ */
+export interface ChromiumBrowser extends Browser {
+  /**
+   * Returns an array of all open browser contexts. In a newly created browser, this will return zero browser contexts.
+   * ```js
+   * const browser = await pw.webkit.launch();
+   * console.log(browser.contexts().length); // prints `0`
+   * 
+   * const context = await browser.newContext();
+   * console.log(browser.contexts().length); // prints `1`
+   * ```
+   */
+  contexts(): Array<ChromiumBrowserContext>;
+  /**
+   * Creates a new browser context. It won't share cookies/cache with other browser contexts.
+   * ```js
+   * (async () => {
+   *   const browser = await playwright.firefox.launch();  // Or 'chromium' or 'webkit'.
+   *   // Create a new incognito browser context.
+   *   const context = await browser.newContext();
+   *   // Create a new page in a pristine context.
+   *   const page = await context.newPage();
+   *   await page.goto('https://example.com');
+   * })();
+   * ```
+   * @param options 
+   */
+  newContext(options?: BrowserContextOptions): Promise<ChromiumBrowserContext>;
+  /**
+   * Returns the newly created browser session.
+   */
+  newBrowserCDPSession(): Promise<CDPSession>;
+
+  /**
+   * Only one trace can be active at a time per browser.
+   * @param page Optional, if specified, tracing includes screenshots of the given page.
+   * @param options 
+   */
+  startTracing(page?: Page, options?: {
+    /**
+     * specify custom categories to use instead of default.
+     */
+    categories?: Array<string>;
+
+    /**
+     * A path to write the trace file to.
+     */
+    path?: string;
+
+    /**
+     * captures screenshots in the trace.
+     */
+    screenshots?: boolean;
+  }): Promise<void>;
+
+  /**
+   * Returns the buffer with trace data.
+   */
+  stopTracing(): Promise<Buffer>;}
+
+/**
+ * The `CDPSession` instances are used to talk raw Chrome Devtools Protocol:
+ * 
+ * protocol methods can be called with `session.send` method.
+ * protocol events can be subscribed to with `session.on` method.
+ * 
+ * Useful links:
+ * 
+ * Documentation on DevTools Protocol can be found here: DevTools Protocol Viewer.
+ * Getting Started with DevTools Protocol: https://github.com/aslushnikov/getting-started-with-cdp/blob/master/README.md
+ * 
+ * ```js
+ * const client = await page.context().newCDPSession(page);
+ * await client.send('Animation.enable');
+ * client.on('Animation.animationCreated', () => console.log('Animation created!'));
+ * const response = await client.send('Animation.getPlaybackRate');
+ * console.log('playback rate is ' + response.playbackRate);
+ * await client.send('Animation.setPlaybackRate', {
+ *   playbackRate: response.playbackRate / 2
+ * });
+ * ```
+ */
+export interface CDPSession {
+  on: <T extends keyof Protocol.Events | symbol>(event: T, listener: (payload: T extends symbol ? any : Protocol.Events[T extends keyof Protocol.Events ? T : never]) => void) => this;
+  addListener: <T extends keyof Protocol.Events | symbol>(event: T, listener: (payload: T extends symbol ? any : Protocol.Events[T extends keyof Protocol.Events ? T : never]) => void) => this;
+  off: <T extends keyof Protocol.Events | symbol>(event: T, listener: (payload: T extends symbol ? any : Protocol.Events[T extends keyof Protocol.Events ? T : never]) => void) => this;
+  removeListener: <T extends keyof Protocol.Events | symbol>(event: T, listener: (payload: T extends symbol ? any : Protocol.Events[T extends keyof Protocol.Events ? T : never]) => void) => this;
+  once: <T extends keyof Protocol.Events | symbol>(event: T, listener: (payload: T extends symbol ? any : Protocol.Events[T extends keyof Protocol.Events ? T : never]) => void) => this;
+  /**
+   * @param method protocol method name
+   * @param params Optional method parameters
+   */
+  send<T extends keyof Protocol.CommandParameters>(
+    method: T,
+    params?: Protocol.CommandParameters[T]
+  ): Promise<Protocol.CommandReturnValues[T]>;
+  /**
+   * Detaches the CDPSession from the target. Once detached, the CDPSession object won't emit any events and can't be used to send messages.
+   */
+  detach(): Promise<void>;}
+
+type DeviceDescriptor = {
+  viewport: ViewportSize;
+  userAgent: string;
+  deviceScaleFactor: number;
+  isMobile: boolean;
+  hasTouch: boolean;
+  defaultBrowserType: 'chromium' | 'firefox' | 'webkit';
+};
+
+export namespace errors {
+
+/**
+ * TimeoutError is emitted whenever certain operations are terminated due to timeout, e.g. `page.waitForSelector(selector[, options])` or `browserType.launch([options])`.
+ */
+class TimeoutError extends Error {}
+
+}
+
+/**
+ * The Accessibility class provides methods for inspecting Chromium's accessibility tree. The accessibility tree is used by assistive technology such as screen readers or switches.
+ * Accessibility is a very platform-specific thing. On different platforms, there are different screen readers that might have wildly different output.
+ * Blink - Chromium's rendering engine - has a concept of "accessibility tree", which is then translated into different platform-specific APIs. Accessibility namespace gives users access to the Blink Accessibility Tree.
+ * Most of the accessibility tree gets filtered out when converting from Blink AX Tree to Platform-specific AX-Tree or by assistive technologies themselves. By default, Playwright tries to approximate this filtering, exposing only the "interesting" nodes of the tree.
+ */
+export interface Accessibility {
+  /**
+   * Captures the current state of the accessibility tree. The returned object represents the root accessible node of the page.
+   * 
+   * **NOTE** The Chromium accessibility tree contains nodes that go unused on most platforms and by most screen readers. Playwright will discard them as well for an easier to process tree, unless `interestingOnly` is set to `false`.
+   * 
+   * An example of dumping the entire accessibility tree:
+   * ```js
+   * const snapshot = await page.accessibility.snapshot();
+   * console.log(snapshot);
+   * ```
+   * An example of logging the focused node's name:
+   * ```js
+   * const snapshot = await page.accessibility.snapshot();
+   * const node = findFocusedNode(snapshot);
+   * console.log(node && node.name);
+   * 
+   * function findFocusedNode(node) {
+   *   if (node.focused)
+   *     return node;
+   *   for (const child of node.children || []) {
+   *     const foundNode = findFocusedNode(child);
+   *     return foundNode;
+   *   }
+   *   return null;
+   * }
+   * ```
+   * @param options 
+   */
+  snapshot(options?: {
+    /**
+     * Prune uninteresting nodes from the tree. Defaults to `true`.
+     */
+    interestingOnly?: boolean;
+
+    /**
+     * The root DOM element for the snapshot. Defaults to the whole page.
+     */
+    root?: ElementHandle;
+  }): Promise<null|AccessibilityNode>;
+}
+
+type AccessibilityNode = {
+  role: string;
+  name: string;
+  value?: string|number;
+  description?: string;
+  keyshortcuts?: string;
+  roledescription?: string;
+  valuetext?: string;
+  disabled?: boolean;
+  expanded?: boolean;
+  focused?: boolean;
+  modal?: boolean;
+  multiline?: boolean;
+  multiselectable?: boolean;
+  readonly?: boolean;
+  required?: boolean;
+  selected?: boolean;
+  checked?: boolean|"mixed";
+  pressed?: boolean|"mixed";
+  level?: number;
+  valuemin?: number;
+  valuemax?: number;
+  autocomplete?: string;
+  haspopup?: string;
+  invalid?: string;
+  orientation?: string;
+  children?: AccessibilityNode[];
+}
+
+export const selectors: Selectors;
+export const devices: Devices & DeviceDescriptor[];
+
+// This is required to not export everything by default. See https://github.com/Microsoft/TypeScript/issues/19545#issuecomment-340490459
+export {};
+
+
+/**
+ * A Browser is created when Playwright connects to a browser instance, either through `browserType.launch([options])` or `browserType.connect(params)`.
+ * An example of using a Browser to create a Page:
+ * ```js
+ * const { firefox } = require('playwright');  // Or 'chromium' or 'webkit'.
+ * 
+ * (async () => {
+ *   const browser = await firefox.launch();
+ *   const page = await browser.newPage();
+ *   await page.goto('https://example.com');
+ *   await browser.close();
+ * })();
+ * ```
+ * See ChromiumBrowser, FirefoxBrowser and WebKitBrowser for browser-specific features. Note that `browserType.connect(params)` and `browserType.launch([options])` always return a specific browser instance, based on the browser being connected to or launched.
+ */
+export interface Browser extends EventEmitter {
+  on(event: 'disconnected', listener: () => void): this;
+
+  once(event: 'disconnected', listener: () => void): this;
+
+  addListener(event: 'disconnected', listener: () => void): this;
+
+  removeListener(event: 'disconnected', listener: () => void): this;
+
+  off(event: 'disconnected', listener: () => void): this;
+
+  /**
+   * In case this browser is obtained using `browserType.launch([options])`, closes the browser and all of its pages (if any were opened).
+   * In case this browser is obtained using `browserType.connect(params)`, clears all created contexts belonging to this browser and disconnects from the browser server.
+   * The Browser object itself is considered to be disposed and cannot be used anymore.
+   */
+  close(): Promise<void>;
+
+  /**
+   * Returns an array of all open browser contexts. In a newly created browser, this will return zero browser contexts.
+   * ```js
+   * const browser = await pw.webkit.launch();
+   * console.log(browser.contexts().length); // prints `0`
+   * 
+   * const context = await browser.newContext();
+   * console.log(browser.contexts().length); // prints `1`
+   * ```
+   */
+  contexts(): Array<BrowserContext>;
+
+  /**
+   * Indicates that the browser is connected.
+   */
+  isConnected(): boolean;
+
+  /**
+   * Creates a new browser context. It won't share cookies/cache with other browser contexts.
+   * ```js
+   * (async () => {
+   *   const browser = await playwright.firefox.launch();  // Or 'chromium' or 'webkit'.
+   *   // Create a new incognito browser context.
+   *   const context = await browser.newContext();
+   *   // Create a new page in a pristine context.
+   *   const page = await context.newPage();
+   *   await page.goto('https://example.com');
+   * })();
+   * ```
+   * @param options 
+   */
+  newContext(options?: BrowserContextOptions): Promise<BrowserContext>;
+
+  /**
+   * Creates a new page in a new browser context. Closing this page will close the context as well.
+   * This is a convenience API that should only be used for the single-page scenarios and short snippets. Production code and testing frameworks should explicitly create `browser.newContext([options])` followed by the `browserContext.newPage()` to control their exact life times.
+   * @param options 
+   */
+  newPage(options?: {
+    /**
+     * Whether to automatically download all the attachments. Defaults to `false` where all the downloads are canceled.
+     */
+    acceptDownloads?: boolean;
+
+    /**
+     * Toggles bypassing page's Content-Security-Policy.
+     */
+    bypassCSP?: boolean;
+
+    /**
+     * Emulates `'prefers-colors-scheme'` media feature, supported values are `'light'`, `'dark'`, `'no-preference'`. See `page.emulateMedia(params)` for more details. Defaults to '`light`'.
+     */
+    colorScheme?: "dark"|"light"|"no-preference";
+
+    /**
+     * Specify device scale factor (can be thought of as dpr). Defaults to `1`.
+     */
+    deviceScaleFactor?: number;
+
+    /**
+     * An object containing additional HTTP headers to be sent with every request. All header values must be strings.
+     */
+    extraHTTPHeaders?: { [key: string]: string; };
+
+    geolocation?: {
+      /**
+       * Latitude between -90 and 90.
+       */
+      latitude: number;
+
+      /**
+       * Longitude between -180 and 180.
+       */
+      longitude: number;
+
+      /**
+       * Non-negative accuracy value. Defaults to `0`.
+       */
+      accuracy?: number;
+    };
+
+    /**
+     * Specifies if viewport supports touch events. Defaults to false.
+     */
+    hasTouch?: boolean;
+
+    /**
+     * Credentials for HTTP authentication.
+     */
+    httpCredentials?: {
+      username: string;
+
+      password: string;
+    };
+
+    /**
+     * Whether to ignore HTTPS errors during navigation. Defaults to `false`.
+     */
+    ignoreHTTPSErrors?: boolean;
+
+    /**
+     * Whether the `meta viewport` tag is taken into account and touch events are enabled. Defaults to `false`. Not supported in Firefox.
+     */
+    isMobile?: boolean;
+
+    /**
+     * Whether or not to enable JavaScript in the context. Defaults to `true`.
+     */
+    javaScriptEnabled?: boolean;
+
+    /**
+     * Specify user locale, for example `en-GB`, `de-DE`, etc. Locale will affect `navigator.language` value, `Accept-Language` request header value as well as number and date formatting rules.
+     */
+    locale?: string;
+
+    /**
+     * Logger sink for Playwright logging.
+     */
+    logger?: Logger;
+
+    /**
+     * Whether to emulate network being offline. Defaults to `false`.
+     */
+    offline?: boolean;
+
+    /**
+     * A list of permissions to grant to all pages in this context. See `browserContext.grantPermissions(permissions[, options])` for more details.
+     */
+    permissions?: Array<string>;
+
+    /**
+     * Network proxy settings to use with this context. Note that browser needs to be launched with the global proxy for this option to work. If all contexts override the proxy, global proxy will be never used and can be any string, for example `launch({ proxy: { server: 'per-context' } })`.
+     */
+    proxy?: {
+      /**
+       * Proxy to be used for all requests. HTTP and SOCKS proxies are supported, for example `http://myproxy.com:3128` or `socks5://myproxy.com:3128`. Short form `myproxy.com:3128` is considered an HTTP proxy.
+       */
+      server: string;
+
+      /**
+       * Optional coma-separated domains to bypass proxy, for example `".com, chromium.org, .domain.com"`.
+       */
+      bypass?: string;
+
+      /**
+       * Optional username to use if HTTP proxy requires authentication.
+       */
+      username?: string;
+
+      /**
+       * Optional password to use if HTTP proxy requires authentication.
+       */
+      password?: string;
+    };
+
+    /**
+     * Enables HAR recording for all pages into `recordHar.path` file. If not specified, the HAR is not recorded. Make sure to await `browserContext.close()` for the HAR to be saved.
+     */
+    recordHar?: {
+      /**
+       * Optional setting to control whether to omit request content from the HAR. Defaults to `false`.
+       */
+      omitContent?: boolean;
+
+      /**
+       * Path on the filesystem to write the HAR file to.
+       */
+      path: string;
+    };
+
+    /**
+     * Enables video recording for all pages into `recordVideo.dir` directory. If not specified videos are not recorded. Make sure to await `browserContext.close()` for videos to be saved.
+     */
+    recordVideo?: {
+      /**
+       * Path to the directory to put videos into.
+       */
+      dir: string;
+
+      /**
+       * Optional dimensions of the recorded videos. If not specified the size will be equal to `viewport`. If `viewport` is not configured explicitly the video size defaults to 1280x720. Actual picture of each page will be scaled down if necessary to fit the specified size.
+       */
+      size?: {
+        /**
+         * Video frame width.
+         */
+        width: number;
+
+        /**
+         * Video frame height.
+         */
+        height: number;
+      };
+    };
+
+    /**
+     * Populates context with given storage state. This method can be used to initialize context with logged-in information obtained via `browserContext.storageState([options])`. Either a path to the file with saved storage, or an object with the following fields:
+     */
+    storageState?: string|{
+      /**
+       * Optional cookies to set for context
+       */
+      cookies?: Array<{
+        /**
+         * **required**
+         */
+        name: string;
+
+        /**
+         * **required**
+         */
+        value: string;
+
+        /**
+         * Optional either url or domain / path are required
+         */
+        url?: string;
+
+        /**
+         * Optional either url or domain / path are required
+         */
+        domain?: string;
+
+        /**
+         * Optional either url or domain / path are required
+         */
+        path?: string;
+
+        /**
+         * Optional Unix time in seconds.
+         */
+        expires?: number;
+
+        /**
+         * Optional httpOnly flag
+         */
+        httpOnly?: boolean;
+
+        /**
+         * Optional secure flag
+         */
+        secure?: boolean;
+
+        /**
+         * Optional sameSite flag
+         */
+        sameSite?: "Lax"|"None"|"Strict";
+      }>;
+
+      /**
+       * Optional localStorage to set for context
+       */
+      origins?: Array<{
+        origin: string;
+
+        localStorage: Array<{
+          name: string;
+
+          value: string;
+        }>;
+      }>;
+    };
+
+    /**
+     * Changes the timezone of the context. See ICU’s `metaZones.txt` for a list of supported timezone IDs.
+     */
+    timezoneId?: string;
+
+    /**
+     * Specific user agent to use in this context.
+     */
+    userAgent?: string;
+
+    /**
+     * **NOTE** Use `recordVideo` instead, it takes precedence over `videoSize`. Specifies dimensions of the automatically recorded video. Can only be used if `videosPath` is set. If not specified the size will be equal to `viewport`. If `viewport` is not configured explicitly the video size defaults to 1280x720. Actual picture of the page will be scaled down if necessary to fit specified size.
+     */
+    videoSize?: {
+      /**
+       * Video frame width.
+       */
+      width: number;
+
+      /**
+       * Video frame height.
+       */
+      height: number;
+    };
+
+    /**
+     * **NOTE** Use `recordVideo` instead, it takes precedence over `videosPath`. Enables video recording for all pages to `videosPath` directory. If not specified, videos are not recorded. Make sure to await `browserContext.close()` for videos to be saved.
+     */
+    videosPath?: string;
+
+    /**
+     * Sets a consistent viewport for each page. Defaults to an 1280x720 viewport. `null` disables the default viewport.
+     */
+    viewport?: null|{
+      /**
+       * page width in pixels.
+       */
+      width: number;
+
+      /**
+       * page height in pixels.
+       */
+      height: number;
+    };
+  }): Promise<Page>;
+
+  /**
+   * Returns the browser version.
+   */
+  version(): string;
+}
+
+/**
+ * ConsoleMessage objects are dispatched by page via the page.on('console') event.
+ */
+export interface ConsoleMessage {
+  args(): Array<JSHandle>;
+
+  location(): {
+    /**
+     * URL of the resource if available, otherwise empty string.
+     */
+    url: string;
+
+    /**
+     * 0-based line number in the resource.
+     */
+    lineNumber: number;
+
+    /**
+     * 0-based column number in the resource.
+     */
+    columnNumber: number;
+  };
+
+  text(): string;
+
+  /**
+   * One of the following values: `'log'`, `'debug'`, `'info'`, `'error'`, `'warning'`, `'dir'`, `'dirxml'`, `'table'`, `'trace'`, `'clear'`, `'startGroup'`, `'startGroupCollapsed'`, `'endGroup'`, `'assert'`, `'profile'`, `'profileEnd'`, `'count'`, `'timeEnd'`.
+   */
+  type(): string;
+}
+
+/**
+ * Dialog objects are dispatched by page via the page.on('dialog') event.
+ * An example of using `Dialog` class:
+ * ```js
+ * const { chromium } = require('playwright');  // Or 'firefox' or 'webkit'.
+ * 
+ * (async () => {
+ *   const browser = await chromium.launch();
+ *   const page = await browser.newPage();
+ *   page.on('dialog', async dialog => {
+ *     console.log(dialog.message());
+ *     await dialog.dismiss();
+ *     await browser.close();
+ *   });
+ *   page.evaluate(() => alert('1'));
+ * })();
+ * ```
+ */
+export interface Dialog {
+  /**
+   * Returns when the dialog has been accepted.
+   * @param promptText A text to enter in prompt. Does not cause any effects if the dialog's `type` is not prompt. Optional.
+   */
+  accept(promptText?: string): Promise<void>;
+
+  /**
+   * If dialog is prompt, returns default prompt value. Otherwise, returns empty string.
+   */
+  defaultValue(): string;
+
+  /**
+   * Returns when the dialog has been dismissed.
+   */
+  dismiss(): Promise<void>;
+
+  /**
+   * A message displayed in the dialog.
+   */
+  message(): string;
+
+  /**
+   * Returns dialog's type, can be one of `alert`, `beforeunload`, `confirm` or `prompt`.
+   */
+  type(): string;
+}
+
+/**
+ * Download objects are dispatched by page via the page.on('download') event.
+ * All the downloaded files belonging to the browser context are deleted when the browser context is closed. All downloaded files are deleted when the browser closes.
+ * Download event is emitted once the download starts. Download path becomes available once download completes:
+ * ```js
+ * const [ download ] = await Promise.all([
+ *   page.waitForEvent('download'), // wait for download to start
+ *   page.click('a')
+ * ]);
+ * // wait for download to complete
+ * const path = await download.path();
+ * ...
+ * ```
+ * 
+ * **NOTE** Browser context **must** be created with the `acceptDownloads` set to `true` when user needs access to the downloaded content. If `acceptDownloads` is not set or set to `false`, download events are emitted, but the actual download is not performed and user has no access to the downloaded files.
+ */
+export interface Download {
+  /**
+   * Returns readable stream for current download or `null` if download failed.
+   */
+  createReadStream(): Promise<null|Readable>;
+
+  /**
+   * Deletes the downloaded file.
+   */
+  delete(): Promise<void>;
+
+  /**
+   * Returns download error if any.
+   */
+  failure(): Promise<null|string>;
+
+  /**
+   * Returns path to the downloaded file in case of successful download.
+   */
+  path(): Promise<null|string>;
+
+  /**
+   * Saves the download to a user-specified path.
+   * @param path Path where the download should be saved.
+   */
+  saveAs(path: string): Promise<void>;
+
+  /**
+   * Returns suggested filename for this download. It is typically computed by the browser from the `Content-Disposition` response header or the `download` attribute. See the spec on whatwg. Different browsers can use different logic for computing it.
+   */
+  suggestedFilename(): string;
+
+  /**
+   * Returns downloaded url.
+   */
+  url(): string;
+}
+
+/**
+ * When browser context is created with the `videosPath` option, each page has a video object associated with it.
+ * ```js
+ * console.log(await page.video().path());
+ * ```
+ */
+export interface Video {
+  /**
+   * Returns the file system path this video will be recorded to. The video is guaranteed to be written to the filesystem upon closing the browser context.
+   */
+  path(): Promise<string>;
+}
+
+/**
+ * FileChooser objects are dispatched by the page in the page.on('filechooser') event.
+ * ```js
+ * page.on('filechooser', async (fileChooser) => {
+ *   await fileChooser.setFiles('/tmp/myfile.pdf');
+ * });
+ * ```
+ */
+export interface FileChooser {
+  /**
+   * Returns input element associated with this file chooser.
+   */
+  element(): ElementHandle;
+
+  /**
+   * Returns whether this file chooser accepts multiple files.
+   */
+  isMultiple(): boolean;
+
+  /**
+   * Returns page this file chooser belongs to.
+   */
+  page(): Page;
+
+  /**
+   * Sets the value of the file input this chooser is associated with. If some of the `filePaths` are relative paths, then they are resolved relative to the the current working directory. For empty array, clears the selected files.
+   * @param files 
+   * @param options 
+   */
+  setFiles(files: string|Array<string>|{
+    /**
+     * File name **required**
+     */
+    name: string;
+
+    /**
+     * File type **required**
+     */
+    mimeType: string;
+
+    /**
+     * File content **required**
+     */
+    buffer: Buffer;
+  }|Array<{
+    /**
+     * File name **required**
+     */
+    name: string;
+
+    /**
+     * File type **required**
+     */
+    mimeType: string;
+
+    /**
+     * File content **required**
+     */
+    buffer: Buffer;
+  }>, options?: {
+    /**
+     * Actions that initiate navigations are waiting for these navigations to happen and for pages to start loading. You can opt out of waiting via setting this flag. You would only need this option in the exceptional cases such as navigating to inaccessible pages. Defaults to `false`.
+     */
+    noWaitAfter?: boolean;
+
+    /**
+     * Maximum time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+     */
+    timeout?: number;
+  }): Promise<void>;
+}
+
+/**
+ * Keyboard provides an api for managing a virtual keyboard. The high level api is `keyboard.type(text[, options])`, which takes raw characters and generates proper keydown, keypress/input, and keyup events on your page.
+ * For finer control, you can use `keyboard.down(key)`, `keyboard.up(key)`, and `keyboard.insertText(text)` to manually fire events as if they were generated from a real keyboard.
+ * An example of holding down `Shift` in order to select and delete some text:
+ * ```js
+ * await page.keyboard.type('Hello World!');
+ * await page.keyboard.press('ArrowLeft');
+ * 
+ * await page.keyboard.down('Shift');
+ * for (let i = 0; i < ' World'.length; i++)
+ *   await page.keyboard.press('ArrowLeft');
+ * await page.keyboard.up('Shift');
+ * 
+ * await page.keyboard.press('Backspace');
+ * // Result text will end up saying 'Hello!'
+ * ```
+ * An example of pressing uppercase `A`
+ * ```js
+ * await page.keyboard.press('Shift+KeyA');
+ * // or
+ * await page.keyboard.press('Shift+A');
+ * ```
+ * An example to trigger select-all with the keyboard
+ * ```js
+ * // on Windows and Linux
+ * await page.keyboard.press('Control+A');
+ * // on macOS
+ * await page.keyboard.press('Meta+A');
+ * ```
+ */
+export interface Keyboard {
+  /**
+   * Dispatches a `keydown` event.
+   * `key` can specify the intended keyboardEvent.key value or a single character to generate the text for. A superset of the `key` values can be found here. Examples of the keys are:
+   * `F1` - `F12`, `Digit0`- `Digit9`, `KeyA`- `KeyZ`, `Backquote`, `Minus`, `Equal`, `Backslash`, `Backspace`, `Tab`, `Delete`, `Escape`, `ArrowDown`, `End`, `Enter`, `Home`, `Insert`, `PageDown`, `PageUp`, `ArrowRight`, `ArrowUp`, etc.
+   * Following modification shortcuts are also suported: `Shift`, `Control`, `Alt`, `Meta`, `ShiftLeft`.
+   * Holding down `Shift` will type the text that corresponds to the `key` in the upper case.
+   * If `key` is a single character, it is case-sensitive, so the values `a` and `A` will generate different respective texts.
+   * If `key` is a modifier key, `Shift`, `Meta`, `Control`, or `Alt`, subsequent key presses will be sent with that modifier active. To release the modifier key, use `keyboard.up(key)`.
+   * After the key is pressed once, subsequent calls to `keyboard.down(key)` will have repeat set to true. To release the key, use `keyboard.up(key)`.
+   * 
+   * **NOTE** Modifier keys DO influence `keyboard.down`. Holding down `Shift` will type the text in upper case.
+   * @param key Name of the key to press or a character to generate, such as `ArrowLeft` or `a`.
+   */
+  down(key: string): Promise<void>;
+
+  /**
+   * Dispatches only `input` event, does not emit the `keydown`, `keyup` or `keypress` events.
+   * ```js
+   * page.keyboard.insertText('嗨');
+   * ```
+   * 
+   * **NOTE** Modifier keys DO NOT effect `keyboard.insertText`. Holding down `Shift` will not type the text in upper case.
+   * @param text Sets input to the specified text value.
+   */
+  insertText(text: string): Promise<void>;
+
+  /**
+   * `key` can specify the intended keyboardEvent.key value or a single character to generate the text for. A superset of the `key` values can be found here. Examples of the keys are:
+   * `F1` - `F12`, `Digit0`- `Digit9`, `KeyA`- `KeyZ`, `Backquote`, `Minus`, `Equal`, `Backslash`, `Backspace`, `Tab`, `Delete`, `Escape`, `ArrowDown`, `End`, `Enter`, `Home`, `Insert`, `PageDown`, `PageUp`, `ArrowRight`, `ArrowUp`, etc.
+   * Following modification shortcuts are also suported: `Shift`, `Control`, `Alt`, `Meta`, `ShiftLeft`.
+   * Holding down `Shift` will type the text that corresponds to the `key` in the upper case.
+   * If `key` is a single character, it is case-sensitive, so the values `a` and `A` will generate different respective texts.
+   * Shortcuts such as `key: "Control+o"` or `key: "Control+Shift+T"` are supported as well. When speficied with the modifier, modifier is pressed and being held while the subsequent key is being pressed.
+   * ```js
+   * const page = await browser.newPage();
+   * await page.goto('https://keycode.info');
+   * await page.keyboard.press('A');
+   * await page.screenshot({ path: 'A.png' });
+   * await page.keyboard.press('ArrowLeft');
+   * await page.screenshot({ path: 'ArrowLeft.png' });
+   * await page.keyboard.press('Shift+O');
+   * await page.screenshot({ path: 'O.png' });
+   * await browser.close();
+   * ```
+   * Shortcut for `keyboard.down(key)` and `keyboard.up(key)`.
+   * @param key Name of the key to press or a character to generate, such as `ArrowLeft` or `a`.
+   * @param options 
+   */
+  press(key: string, options?: {
+    /**
+     * Time to wait between `keydown` and `keyup` in milliseconds. Defaults to 0.
+     */
+    delay?: number;
+  }): Promise<void>;
+
+  /**
+   * Sends a `keydown`, `keypress`/`input`, and `keyup` event for each character in the text.
+   * To press a special key, like `Control` or `ArrowDown`, use `keyboard.press(key[, options])`.
+   * ```js
+   * await page.keyboard.type('Hello'); // Types instantly
+   * await page.keyboard.type('World', {delay: 100}); // Types slower, like a user
+   * ```
+   * 
+   * **NOTE** Modifier keys DO NOT effect `keyboard.type`. Holding down `Shift` will not type the text in upper case.
+   * @param text A text to type into a focused element.
+   * @param options 
+   */
+  type(text: string, options?: {
+    /**
+     * Time to wait between key presses in milliseconds. Defaults to 0.
+     */
+    delay?: number;
+  }): Promise<void>;
+
+  /**
+   * Dispatches a `keyup` event.
+   * @param key Name of the key to press or a character to generate, such as `ArrowLeft` or `a`.
+   */
+  up(key: string): Promise<void>;
+}
+
+/**
+ * The Mouse class operates in main-frame CSS pixels relative to the top-left corner of the viewport.
+ * Every `page` object has its own Mouse, accessible with page.mouse.
+ * ```js
+ * // Using ‘page.mouse’ to trace a 100x100 square.
+ * await page.mouse.move(0, 0);
+ * await page.mouse.down();
+ * await page.mouse.move(0, 100);
+ * await page.mouse.move(100, 100);
+ * await page.mouse.move(100, 0);
+ * await page.mouse.move(0, 0);
+ * await page.mouse.up();
+ * ```
+ */
+export interface Mouse {
+  /**
+   * Shortcut for `mouse.move(x, y[, options])`, `mouse.down([options])`, `mouse.up([options])`.
+   * @param x 
+   * @param y 
+   * @param options 
+   */
+  click(x: number, y: number, options?: {
+    /**
+     * Defaults to `left`.
+     */
+    button?: "left"|"middle"|"right";
+
+    /**
+     * defaults to 1. See UIEvent.detail.
+     */
+    clickCount?: number;
+
+    /**
+     * Time to wait between `mousedown` and `mouseup` in milliseconds. Defaults to 0.
+     */
+    delay?: number;
+  }): Promise<void>;
+
+  /**
+   * Shortcut for `mouse.move(x, y[, options])`, `mouse.down([options])`, `mouse.up([options])`, `mouse.down([options])` and `mouse.up([options])`.
+   * @param x 
+   * @param y 
+   * @param options 
+   */
+  dblclick(x: number, y: number, options?: {
+    /**
+     * Defaults to `left`.
+     */
+    button?: "left"|"middle"|"right";
+
+    /**
+     * Time to wait between `mousedown` and `mouseup` in milliseconds. Defaults to 0.
+     */
+    delay?: number;
+  }): Promise<void>;
+
+  /**
+   * Dispatches a `mousedown` event.
+   * @param options 
+   */
+  down(options?: {
+    /**
+     * Defaults to `left`.
+     */
+    button?: "left"|"middle"|"right";
+
+    /**
+     * defaults to 1. See UIEvent.detail.
+     */
+    clickCount?: number;
+  }): Promise<void>;
+
+  /**
+   * Dispatches a `mousemove` event.
+   * @param x 
+   * @param y 
+   * @param options 
+   */
+  move(x: number, y: number, options?: {
+    /**
+     * defaults to 1. Sends intermediate `mousemove` events.
+     */
+    steps?: number;
+  }): Promise<void>;
+
+  /**
+   * Dispatches a `mouseup` event.
+   * @param options 
+   */
+  up(options?: {
+    /**
+     * Defaults to `left`.
+     */
+    button?: "left"|"middle"|"right";
+
+    /**
+     * defaults to 1. See UIEvent.detail.
+     */
+    clickCount?: number;
+  }): Promise<void>;
+}
+
+/**
+ * The Touchscreen class operates in main-frame CSS pixels relative to the top-left corner of the viewport. Methods on the touchscreen can only be used in browser contexts that have been intialized with `hasTouch` set to true.
+ */
+export interface Touchscreen {
+  /**
+   * Dispatches a `touchstart` and `touchend` event with a single touch at the position (`x`,`y`).
+   * @param x 
+   * @param y 
+   */
+  tap(x: number, y: number): Promise<void>;
+}
+
+/**
+ * Whenever the page sends a request for a network resource the following sequence of events are emitted by Page:
+ * 
+ * page.on('request') emitted when the request is issued by the page.
+ * page.on('response') emitted when/if the response status and headers are received for the request.
+ * page.on('requestfinished') emitted when the response body is downloaded and the request is complete.
+ * 
+ * If request fails at some point, then instead of `'requestfinished'` event (and possibly instead of 'response' event), the  page.on('requestfailed') event is emitted.
+ * 
+ * **NOTE** HTTP Error responses, such as 404 or 503, are still successful responses from HTTP standpoint, so request will complete with `'requestfinished'` event.
+ * 
+ * If request gets a 'redirect' response, the request is successfully finished with the 'requestfinished' event, and a new request is  issued to a redirected url.
+ */
+export interface Request {
+  /**
+   * The method returns `null` unless this request has failed, as reported by `requestfailed` event.
+   * Example of logging of all the failed requests:
+   * ```js
+   * page.on('requestfailed', request => {
+   *   console.log(request.url() + ' ' + request.failure().errorText);
+   * });
+   * ```
+   */
+  failure(): null|{
+    /**
+     * Human-readable error message, e.g. `'net::ERR_FAILED'`.
+     */
+    errorText: string;
+  };
+
+  /**
+   * Returns the Frame that initiated this request.
+   */
+  frame(): Frame;
+
+  /**
+   * An object with HTTP headers associated with the request. All header names are lower-case.
+   */
+  headers(): { [key: string]: string; };
+
+  /**
+   * Whether this request is driving frame's navigation.
+   */
+  isNavigationRequest(): boolean;
+
+  /**
+   * Request's method (GET, POST, etc.)
+   */
+  method(): string;
+
+  /**
+   * Request's post body, if any.
+   */
+  postData(): null|string;
+
+  /**
+   * Request's post body in a binary form, if any.
+   */
+  postDataBuffer(): null|Buffer;
+
+  /**
+   * Returns parsed request's body for `form-urlencoded` and JSON as a fallback if any.
+   * When the response is `application/x-www-form-urlencoded` then a key/value object of the values will be returned. Otherwise it will be parsed as JSON.
+   */
+  postDataJSON(): null|Object;
+
+  /**
+   * Request that was redirected by the server to this one, if any.
+   * When the server responds with a redirect, Playwright creates a new Request object. The two requests are connected by `redirectedFrom()` and `redirectedTo()` methods. When multiple server redirects has happened, it is possible to construct the whole redirect chain by repeatedly calling `redirectedFrom()`.
+   * For example, if the website `http://example.com` redirects to `https://example.com`:
+   * ```js
+   * const response = await page.goto('http://example.com');
+   * console.log(response.request().redirectedFrom().url()); // 'http://example.com'
+   * ```
+   * If the website `https://google.com` has no redirects:
+   * ```js
+   * const response = await page.goto('https://google.com');
+   * console.log(response.request().redirectedFrom()); // null
+   * ```
+   */
+  redirectedFrom(): null|Request;
+
+  /**
+   * New request issued by the browser if the server responded with redirect.
+   * This method is the opposite of `request.redirectedFrom()`:
+   * ```js
+   * console.log(request.redirectedFrom().redirectedTo() === request); // true
+   * ```
+   */
+  redirectedTo(): null|Request;
+
+  /**
+   * Contains the request's resource type as it was perceived by the rendering engine. ResourceType will be one of the following: `document`, `stylesheet`, `image`, `media`, `font`, `script`, `texttrack`, `xhr`, `fetch`, `eventsource`, `websocket`, `manifest`, `other`.
+   */
+  resourceType(): string;
+
+  /**
+   * Returns the matching Response object, or `null` if the response was not received due to error.
+   */
+  response(): Promise<null|Response>;
+
+  /**
+   * Returns resource timing information for given request. Most of the timing values become available upon the response, `responseEnd` becomes available when request finishes. Find more information at Resource Timing API.
+   * ```js
+   * const [request] = await Promise.all([
+   *   page.waitForEvent('requestfinished'),
+   *   page.goto(httpsServer.EMPTY_PAGE)
+   * ]);
+   * console.log(request.timing());
+   * ```
+   */
+  timing(): {
+    /**
+     * Request start time in milliseconds elapsed since January 1, 1970 00:00:00 UTC
+     */
+    startTime: number;
+
+    /**
+     * Time immediately before the browser starts the domain name lookup for the resource. The value is given in milliseconds relative to `startTime`, -1 if not available.
+     */
+    domainLookupStart: number;
+
+    /**
+     * Time immediately after the browser starts the domain name lookup for the resource. The value is given in milliseconds relative to `startTime`, -1 if not available.
+     */
+    domainLookupEnd: number;
+
+    /**
+     * Time immediately before the user agent starts establishing the connection to the server to retrieve the resource. The value is given in milliseconds relative to `startTime`, -1 if not available.
+     */
+    connectStart: number;
+
+    /**
+     * Time immediately before the browser starts the handshake process to secure the current connection. The value is given in milliseconds relative to `startTime`, -1 if not available.
+     */
+    secureConnectionStart: number;
+
+    /**
+     * Time immediately before the user agent starts establishing the connection to the server to retrieve the resource. The value is given in milliseconds relative to `startTime`, -1 if not available.
+     */
+    connectEnd: number;
+
+    /**
+     * Time immediately before the browser starts requesting the resource from the server, cache, or local resource. The value is given in milliseconds relative to `startTime`, -1 if not available.
+     */
+    requestStart: number;
+
+    /**
+     * Time immediately after the browser starts requesting the resource from the server, cache, or local resource. The value is given in milliseconds relative to `startTime`, -1 if not available.
+     */
+    responseStart: number;
+
+    /**
+     * Time immediately after the browser receives the last byte of the resource or immediately before the transport connection is closed, whichever comes first. The value is given in milliseconds relative to `startTime`, -1 if not available.
+     */
+    responseEnd: number;
+  };
+
+  /**
+   * URL of the request.
+   */
+  url(): string;
+}
+
+/**
+ * Response class represents responses which are received by page.
+ */
+export interface Response {
+  /**
+   * Returns the buffer with response body.
+   */
+  body(): Promise<Buffer>;
+
+  /**
+   * Waits for this response to finish, returns failure error if request failed.
+   */
+  finished(): Promise<null|Error>;
+
+  /**
+   * Returns the Frame that initiated this response.
+   */
+  frame(): Frame;
+
+  /**
+   * Returns the object with HTTP headers associated with the response. All header names are lower-case.
+   */
+  headers(): { [key: string]: string; };
+
+  /**
+   * Returns the JSON representation of response body.
+   * This method will throw if the response body is not parsable via `JSON.parse`.
+   */
+  json(): Promise<Serializable>;
+
+  /**
+   * Contains a boolean stating whether the response was successful (status in the range 200-299) or not.
+   */
+  ok(): boolean;
+
+  /**
+   * Returns the matching Request object.
+   */
+  request(): Request;
+
+  /**
+   * Contains the status code of the response (e.g., 200 for a success).
+   */
+  status(): number;
+
+  /**
+   * Contains the status text of the response (e.g. usually an "OK" for a success).
+   */
+  statusText(): string;
+
+  /**
+   * Returns the text representation of response body.
+   */
+  text(): Promise<string>;
+
+  /**
+   * Contains the URL of the response.
+   */
+  url(): string;
+}
+
+/**
+ * Selectors can be used to install custom selector engines. See Working with selectors for more information.
+ */
+export interface Selectors {
+  /**
+   * An example of registering selector engine that queries elements based on a tag name:
+   * ```js
+   * const { selectors, firefox } = require('playwright');  // Or 'chromium' or 'webkit'.
+   * 
+   * (async () => {
+   *   // Must be a function that evaluates to a selector engine instance.
+   *   const createTagNameEngine = () => ({
+   *     // Returns the first element matching given selector in the root's subtree.
+   *     query(root, selector) {
+   *       return root.querySelector(selector);
+   *     },
+   * 
+   *     // Returns all elements matching given selector in the root's subtree.
+   *     queryAll(root, selector) {
+   *       return Array.from(root.querySelectorAll(selector));
+   *     }
+   *   });
+   * 
+   *   // Register the engine. Selectors will be prefixed with "tag=".
+   *   await selectors.register('tag', createTagNameEngine);
+   * 
+   *   const browser = await firefox.launch();
+   *   const page = await browser.newPage();
+   *   await page.setContent(`<div><button>Click me</button></div>`);
+   * 
+   *   // Use the selector prefixed with its name.
+   *   const button = await page.$('tag=button');
+   *   // Combine it with other selector engines.
+   *   await page.click('tag=div >> text="Click me"');
+   *   // Can use it in any methods supporting selectors.
+   *   const buttonCount = await page.$$eval('tag=button', buttons => buttons.length);
+   * 
+   *   await browser.close();
+   * })();
+   * ```
+   * @param name Name that is used in selectors as a prefix, e.g. `{name: 'foo'}` enables `foo=myselectorbody` selectors. May only contain `[a-zA-Z0-9_]` characters.
+   * @param script Script that evaluates to a selector engine instance.
+   * @param options 
+   */
+  register(name: string, script: Function|string|{
+    /**
+     * Path to the JavaScript file. If `path` is a relative path, then it is resolved relative to the current working directory.
+     */
+    path?: string;
+
+    /**
+     * Raw script content.
+     */
+    content?: string;
+  }, options?: {
+    /**
+     * Whether to run this selector engine in isolated JavaScript environment. This environment has access to the same DOM, but not any JavaScript objects from the frame's scripts. Defaults to `false`. Note that running as a content script is not guaranteed when this engine is used together with other registered engines.
+     */
+    contentScript?: boolean;
+  }): Promise<void>;
+}
+
+/**
+ * Whenever a network route is set up with `page.route(url, handler)` or `browserContext.route(url, handler)`, the `Route` object allows to handle the route.
+ */
+export interface Route {
+  /**
+   * Aborts the route's request.
+   * @param errorCode Optional error code. Defaults to `failed`, could be one of the following:  - `'aborted'` - An operation was aborted (due to user action)
+   *  - `'accessdenied'` - Permission to access a resource, other than the network, was denied
+   *  - `'addressunreachable'` - The IP address is unreachable. This usually means that there is no route to the specified host or network.
+   *  - `'blockedbyclient'` - The client chose to block the request.
+   *  - `'blockedbyresponse'` - The request failed because the response was delivered along with requirements which are not met ('X-Frame-Options' and 'Content-Security-Policy' ancestor checks, for instance).
+   *  - `'connectionaborted'` - A connection timed out as a result of not receiving an ACK for data sent.
+   *  - `'connectionclosed'` - A connection was closed (corresponding to a TCP FIN).
+   *  - `'connectionfailed'` - A connection attempt failed.
+   *  - `'connectionrefused'` - A connection attempt was refused.
+   *  - `'connectionreset'` - A connection was reset (corresponding to a TCP RST).
+   *  - `'internetdisconnected'` - The Internet connection has been lost.
+   *  - `'namenotresolved'` - The host name could not be resolved.
+   *  - `'timedout'` - An operation timed out.
+   *  - `'failed'` - A generic failure occurred.
+   */
+  abort(errorCode?: string): Promise<void>;
+
+  /**
+   * Continues route's request with optional overrides.
+   * ```js
+   * await page.route('**\/*', (route, request) => {
+   *   // Override headers
+   *   const headers = {
+   *     ...request.headers(),
+   *     foo: 'bar', // set "foo" header
+   *     origin: undefined, // remove "origin" header
+   *   };
+   *   route.continue({headers});
+   * });
+   * ```
+   * @param overrides Optional request overrides, can override following properties:
+   */
+  continue(overrides?: {
+    /**
+     * If set changes the request URL. New URL must have same protocol as original one.
+     */
+    url?: string;
+
+    /**
+     * If set changes the request method (e.g. GET or POST)
+     */
+    method?: string;
+
+    /**
+     * If set changes the post data of request
+     */
+    postData?: string|Buffer;
+
+    /**
+     * If set changes the request HTTP headers. Header values will be converted to a string.
+     */
+    headers?: { [key: string]: string; };
+  }): Promise<void>;
+
+  /**
+   * Fulfills route's request with given response.
+   * An example of fulfilling all requests with 404 responses:
+   * ```js
+   * await page.route('**\/*', route => {
+   *   route.fulfill({
+   *     status: 404,
+   *     contentType: 'text/plain',
+   *     body: 'Not Found!'
+   *   });
+   * });
+   * ```
+   * An example of serving static file:
+   * ```js
+   * await page.route('**\/xhr_endpoint', route => route.fulfill({ path: 'mock_data.json' }));
+   * ```
+   * @param response Response that will fulfill this route's request.
+   */
+  fulfill(response: {
+    /**
+     * Response status code, defaults to `200`.
+     */
+    status?: number;
+
+    /**
+     * Optional response headers. Header values will be converted to a string.
+     */
+    headers?: { [key: string]: string; };
+
+    /**
+     * If set, equals to setting `Content-Type` response header.
+     */
+    contentType?: string;
+
+    /**
+     * Optional response body.
+     */
+    body?: string|Buffer;
+
+    /**
+     * Optional file path to respond with. The content type will be inferred from file extension. If `path` is a relative path, then it is resolved relative to the current working directory.
+     */
+    path?: string;
+  }): Promise<void>;
+
+  /**
+   * A request to be routed.
+   */
+  request(): Request;
+}
+
+/**
+ * The WebSocket class represents websocket connections in the page.
+ */
+export interface WebSocket {
+  /**
+   * Fired when the websocket closes.
+   */
+  on(event: 'close', listener: () => void): this;
+
+  /**
+   * Fired when the websocket recieves a frame.
+   */
+  on(event: 'framereceived', listener: (data: {
+  /**
+   * frame payload
+   */
+  payload: string|Buffer;
+}) => void): this;
+
+  /**
+   * Fired when the websocket sends a frame.
+   */
+  on(event: 'framesent', listener: (data: {
+  /**
+   * frame payload
+   */
+  payload: string|Buffer;
+}) => void): this;
+
+  /**
+   * Fired when the websocket has an error.
+   */
+  on(event: 'socketerror', listener: (string: String) => void): this;
+
+  /**
+   * Fired when the websocket closes.
+   */
+  once(event: 'close', listener: () => void): this;
+
+  /**
+   * Fired when the websocket recieves a frame.
+   */
+  once(event: 'framereceived', listener: (data: {
+  /**
+   * frame payload
+   */
+  payload: string|Buffer;
+}) => void): this;
+
+  /**
+   * Fired when the websocket sends a frame.
+   */
+  once(event: 'framesent', listener: (data: {
+  /**
+   * frame payload
+   */
+  payload: string|Buffer;
+}) => void): this;
+
+  /**
+   * Fired when the websocket has an error.
+   */
+  once(event: 'socketerror', listener: (string: String) => void): this;
+
+  /**
+   * Fired when the websocket closes.
+   */
+  addListener(event: 'close', listener: () => void): this;
+
+  /**
+   * Fired when the websocket recieves a frame.
+   */
+  addListener(event: 'framereceived', listener: (data: {
+  /**
+   * frame payload
+   */
+  payload: string|Buffer;
+}) => void): this;
+
+  /**
+   * Fired when the websocket sends a frame.
+   */
+  addListener(event: 'framesent', listener: (data: {
+  /**
+   * frame payload
+   */
+  payload: string|Buffer;
+}) => void): this;
+
+  /**
+   * Fired when the websocket has an error.
+   */
+  addListener(event: 'socketerror', listener: (string: String) => void): this;
+
+  /**
+   * Fired when the websocket closes.
+   */
+  removeListener(event: 'close', listener: () => void): this;
+
+  /**
+   * Fired when the websocket recieves a frame.
+   */
+  removeListener(event: 'framereceived', listener: (data: {
+  /**
+   * frame payload
+   */
+  payload: string|Buffer;
+}) => void): this;
+
+  /**
+   * Fired when the websocket sends a frame.
+   */
+  removeListener(event: 'framesent', listener: (data: {
+  /**
+   * frame payload
+   */
+  payload: string|Buffer;
+}) => void): this;
+
+  /**
+   * Fired when the websocket has an error.
+   */
+  removeListener(event: 'socketerror', listener: (string: String) => void): this;
+
+  /**
+   * Fired when the websocket closes.
+   */
+  off(event: 'close', listener: () => void): this;
+
+  /**
+   * Fired when the websocket recieves a frame.
+   */
+  off(event: 'framereceived', listener: (data: {
+  /**
+   * frame payload
+   */
+  payload: string|Buffer;
+}) => void): this;
+
+  /**
+   * Fired when the websocket sends a frame.
+   */
+  off(event: 'framesent', listener: (data: {
+  /**
+   * frame payload
+   */
+  payload: string|Buffer;
+}) => void): this;
+
+  /**
+   * Fired when the websocket has an error.
+   */
+  off(event: 'socketerror', listener: (string: String) => void): this;
+
+  /**
+   * Indicates that the web socket has been closed.
+   */
+  isClosed(): boolean;
+
+  /**
+   * Contains the URL of the WebSocket.
+   */
+  url(): string;
+
+  /**
+   * Fired when the websocket closes.
+   */
+  waitForEvent(event: 'close', optionsOrPredicate?: { predicate?: () => boolean, timeout?: number } | (() => boolean)): Promise<void>;
+
+  /**
+   * Fired when the websocket recieves a frame.
+   */
+  waitForEvent(event: 'framereceived', optionsOrPredicate?: { predicate?: (data: {
+  /**
+   * frame payload
+   */
+  payload: string|Buffer;
+}) => boolean, timeout?: number } | ((data: {
+  /**
+   * frame payload
+   */
+  payload: string|Buffer;
+}) => boolean)): Promise<{
+  /**
+   * frame payload
+   */
+  payload: string|Buffer;
+}>;
+
+  /**
+   * Fired when the websocket sends a frame.
+   */
+  waitForEvent(event: 'framesent', optionsOrPredicate?: { predicate?: (data: {
+  /**
+   * frame payload
+   */
+  payload: string|Buffer;
+}) => boolean, timeout?: number } | ((data: {
+  /**
+   * frame payload
+   */
+  payload: string|Buffer;
+}) => boolean)): Promise<{
+  /**
+   * frame payload
+   */
+  payload: string|Buffer;
+}>;
+
+  /**
+   * Fired when the websocket has an error.
+   */
+  waitForEvent(event: 'socketerror', optionsOrPredicate?: { predicate?: (string: String) => boolean, timeout?: number } | ((string: String) => boolean)): Promise<String>;
+
+}
+
+export interface BrowserServer {
+  /**
+   * Emitted when the browser server closes.
+   */
+  on(event: 'close', listener: () => void): this;
+
+  /**
+   * Emitted when the browser server closes.
+   */
+  once(event: 'close', listener: () => void): this;
+
+  /**
+   * Emitted when the browser server closes.
+   */
+  addListener(event: 'close', listener: () => void): this;
+
+  /**
+   * Emitted when the browser server closes.
+   */
+  removeListener(event: 'close', listener: () => void): this;
+
+  /**
+   * Emitted when the browser server closes.
+   */
+  off(event: 'close', listener: () => void): this;
+
+  /**
+   * Closes the browser gracefully and makes sure the process is terminated.
+   */
+  close(): Promise<void>;
+
+  /**
+   * Kills the browser process and waits for the process to exit.
+   */
+  kill(): Promise<void>;
+
+  /**
+   * Spawned browser application process.
+   */
+  process(): ChildProcess;
+
+  /**
+   * Browser websocket url.
+   * Browser websocket endpoint which can be used as an argument to `browserType.connect(params)` to establish connection to the browser.
+   */
+  wsEndpoint(): string;
+}
+
+/**
+ * Playwright generates a lot of logs and they are accessible via the pluggable logger sink.
+ * ```js
+ * const { chromium } = require('playwright');  // Or 'firefox' or 'webkit'.
+ * 
+ * (async () => {
+ *   const browser = await chromium.launch({
+ *     logger: {
+ *       isEnabled: (name, severity) => name === 'browser',
+ *       log: (name, severity, message, args) => console.log(`${name} ${message}`)
+ *     }
+ *   });
+ *   ...
+ * })();
+ * ```
+ */
+export interface Logger {
+  /**
+   * Determines whether sink is interested in the logger with the given name and severity.
+   * @param name logger name
+   * @param severity 
+   */
+  isEnabled(name: string, severity: "error"|"info"|"verbose"|"warning"): boolean;
+
+  /**
+   * @param name logger name
+   * @param severity 
+   * @param message log message format
+   * @param args message arguments
+   * @param hints optional formatting hints
+   */
+  log(name: string, severity: "error"|"info"|"verbose"|"warning", message: string|Error, args: Array<Object>, hints: {
+    /**
+     * preferred logger color
+     */
+    color?: string;
+  }): void;
+}
+
+/**
+ * Chromium-specific features including background pages, service worker support, etc.
+ * ```js
+ * const backgroundPage = await context.waitForEvent('backgroundpage');
+ * ```
+ */
+export interface ChromiumBrowserContext extends BrowserContext {
+  /**
+   * Emitted when new background page is created in the context.
+   * 
+   * **NOTE** Only works with persistent context.
+   */
+  on(event: 'backgroundpage', listener: (page: Page) => void): this;
+
+  /**
+   * Emitted when new service worker is created in the context.
+   */
+  on(event: 'serviceworker', listener: (worker: Worker) => void): this;
+
+  on(event: 'close', listener: () => void): this;
+
+  /**
+   * The event is emitted when a new Page is created in the BrowserContext. The page may still be loading. The event will also fire for popup pages. See also page.on('popup') to receive events about popups relevant to a specific page.
+   * The earliest moment that page is available is when it has navigated to the initial url. For example, when opening a popup with `window.open('http://example.com')`, this event will fire when the network request to "http://example.com" is done and its response has started loading in the popup.
+   * ```js
+   * const [page] = await Promise.all([
+   *   context.waitForEvent('page'),
+   *   page.click('a[target=_blank]'),
+   * ]);
+   * console.log(await page.evaluate('location.href'));
+   * ```
+   * 
+   * **NOTE** Use `page.waitForLoadState([state, options])` to wait until the page gets to a particular state (you should not need it in most cases).
+   */
+  on(event: 'page', listener: (page: Page) => void): this;
+
+  /**
+   * Emitted when new background page is created in the context.
+   * 
+   * **NOTE** Only works with persistent context.
+   */
+  once(event: 'backgroundpage', listener: (page: Page) => void): this;
+
+  /**
+   * Emitted when new service worker is created in the context.
+   */
+  once(event: 'serviceworker', listener: (worker: Worker) => void): this;
+
+  once(event: 'close', listener: () => void): this;
+
+  /**
+   * The event is emitted when a new Page is created in the BrowserContext. The page may still be loading. The event will also fire for popup pages. See also page.on('popup') to receive events about popups relevant to a specific page.
+   * The earliest moment that page is available is when it has navigated to the initial url. For example, when opening a popup with `window.open('http://example.com')`, this event will fire when the network request to "http://example.com" is done and its response has started loading in the popup.
+   * ```js
+   * const [page] = await Promise.all([
+   *   context.waitForEvent('page'),
+   *   page.click('a[target=_blank]'),
+   * ]);
+   * console.log(await page.evaluate('location.href'));
+   * ```
+   * 
+   * **NOTE** Use `page.waitForLoadState([state, options])` to wait until the page gets to a particular state (you should not need it in most cases).
+   */
+  once(event: 'page', listener: (page: Page) => void): this;
+
+  /**
+   * Emitted when new background page is created in the context.
+   * 
+   * **NOTE** Only works with persistent context.
+   */
+  addListener(event: 'backgroundpage', listener: (page: Page) => void): this;
+
+  /**
+   * Emitted when new service worker is created in the context.
+   */
+  addListener(event: 'serviceworker', listener: (worker: Worker) => void): this;
+
+  addListener(event: 'close', listener: () => void): this;
+
+  /**
+   * The event is emitted when a new Page is created in the BrowserContext. The page may still be loading. The event will also fire for popup pages. See also page.on('popup') to receive events about popups relevant to a specific page.
+   * The earliest moment that page is available is when it has navigated to the initial url. For example, when opening a popup with `window.open('http://example.com')`, this event will fire when the network request to "http://example.com" is done and its response has started loading in the popup.
+   * ```js
+   * const [page] = await Promise.all([
+   *   context.waitForEvent('page'),
+   *   page.click('a[target=_blank]'),
+   * ]);
+   * console.log(await page.evaluate('location.href'));
+   * ```
+   * 
+   * **NOTE** Use `page.waitForLoadState([state, options])` to wait until the page gets to a particular state (you should not need it in most cases).
+   */
+  addListener(event: 'page', listener: (page: Page) => void): this;
+
+  /**
+   * Emitted when new background page is created in the context.
+   * 
+   * **NOTE** Only works with persistent context.
+   */
+  removeListener(event: 'backgroundpage', listener: (page: Page) => void): this;
+
+  /**
+   * Emitted when new service worker is created in the context.
+   */
+  removeListener(event: 'serviceworker', listener: (worker: Worker) => void): this;
+
+  removeListener(event: 'close', listener: () => void): this;
+
+  /**
+   * The event is emitted when a new Page is created in the BrowserContext. The page may still be loading. The event will also fire for popup pages. See also page.on('popup') to receive events about popups relevant to a specific page.
+   * The earliest moment that page is available is when it has navigated to the initial url. For example, when opening a popup with `window.open('http://example.com')`, this event will fire when the network request to "http://example.com" is done and its response has started loading in the popup.
+   * ```js
+   * const [page] = await Promise.all([
+   *   context.waitForEvent('page'),
+   *   page.click('a[target=_blank]'),
+   * ]);
+   * console.log(await page.evaluate('location.href'));
+   * ```
+   * 
+   * **NOTE** Use `page.waitForLoadState([state, options])` to wait until the page gets to a particular state (you should not need it in most cases).
+   */
+  removeListener(event: 'page', listener: (page: Page) => void): this;
+
+  /**
+   * Emitted when new background page is created in the context.
+   * 
+   * **NOTE** Only works with persistent context.
+   */
+  off(event: 'backgroundpage', listener: (page: Page) => void): this;
+
+  /**
+   * Emitted when new service worker is created in the context.
+   */
+  off(event: 'serviceworker', listener: (worker: Worker) => void): this;
+
+  off(event: 'close', listener: () => void): this;
+
+  /**
+   * The event is emitted when a new Page is created in the BrowserContext. The page may still be loading. The event will also fire for popup pages. See also page.on('popup') to receive events about popups relevant to a specific page.
+   * The earliest moment that page is available is when it has navigated to the initial url. For example, when opening a popup with `window.open('http://example.com')`, this event will fire when the network request to "http://example.com" is done and its response has started loading in the popup.
+   * ```js
+   * const [page] = await Promise.all([
+   *   context.waitForEvent('page'),
+   *   page.click('a[target=_blank]'),
+   * ]);
+   * console.log(await page.evaluate('location.href'));
+   * ```
+   * 
+   * **NOTE** Use `page.waitForLoadState([state, options])` to wait until the page gets to a particular state (you should not need it in most cases).
+   */
+  off(event: 'page', listener: (page: Page) => void): this;
+
+  /**
+   * All existing background pages in the context.
+   */
+  backgroundPages(): Array<Page>;
+
+  /**
+   * Returns the newly created session.
+   * @param page Page to create new session for.
+   */
+  newCDPSession(page: Page): Promise<CDPSession>;
+
+  /**
+   * All existing service workers in the context.
+   */
+  serviceWorkers(): Array<Worker>;
+
+  /**
+   * Emitted when new background page is created in the context.
+   * 
+   * **NOTE** Only works with persistent context.
+   */
+  waitForEvent(event: 'backgroundpage', optionsOrPredicate?: { predicate?: (page: Page) => boolean, timeout?: number } | ((page: Page) => boolean)): Promise<Page>;
+
+  /**
+   * Emitted when new service worker is created in the context.
+   */
+  waitForEvent(event: 'serviceworker', optionsOrPredicate?: { predicate?: (worker: Worker) => boolean, timeout?: number } | ((worker: Worker) => boolean)): Promise<Worker>;
+
+  waitForEvent(event: 'close', optionsOrPredicate?: { predicate?: () => boolean, timeout?: number } | (() => boolean)): Promise<void>;
+
+  /**
+   * The event is emitted when a new Page is created in the BrowserContext. The page may still be loading. The event will also fire for popup pages. See also page.on('popup') to receive events about popups relevant to a specific page.
+   * The earliest moment that page is available is when it has navigated to the initial url. For example, when opening a popup with `window.open('http://example.com')`, this event will fire when the network request to "http://example.com" is done and its response has started loading in the popup.
+   * ```js
+   * const [page] = await Promise.all([
+   *   context.waitForEvent('page'),
+   *   page.click('a[target=_blank]'),
+   * ]);
+   * console.log(await page.evaluate('location.href'));
+   * ```
+   * 
+   * **NOTE** Use `page.waitForLoadState([state, options])` to wait until the page gets to a particular state (you should not need it in most cases).
+   */
+  waitForEvent(event: 'page', optionsOrPredicate?: { predicate?: (page: Page) => boolean, timeout?: number } | ((page: Page) => boolean)): Promise<Page>;
+
+}
+
+/**
+ * Coverage gathers information about parts of JavaScript and CSS that were used by the page.
+ * An example of using JavaScript coverage to produce Istambul report for page load:
+ * ```js
+ * const { chromium } = require('playwright');
+ * const v8toIstanbul = require('v8-to-istanbul');
+ * 
+ * (async() => {
+ *   const browser = await chromium.launch();
+ *   const page = await browser.newPage();
+ *   await page.coverage.startJSCoverage();
+ *   await page.goto('https://chromium.org');
+ *   const coverage = await page.coverage.stopJSCoverage();
+ *   for (const entry of coverage) {
+ *     const converter = new v8toIstanbul('', 0, { source: entry.source });
+ *     await converter.load();
+ *     converter.applyCoverage(entry.functions);
+ *     console.log(JSON.stringify(converter.toIstanbul()));
+ *   }
+ *   await browser.close();
+ * })();
+ * ```
+ */
+export interface ChromiumCoverage {
+  /**
+   * Returns coverage is started
+   * @param options 
+   */
+  startCSSCoverage(options?: {
+    /**
+     * Whether to reset coverage on every navigation. Defaults to `true`.
+     */
+    resetOnNavigation?: boolean;
+  }): Promise<void>;
+
+  /**
+   * Returns coverage is started
+   * 
+   * **NOTE** Anonymous scripts are ones that don't have an associated url. These are scripts that are dynamically created on the page using `eval` or `new Function`. If `reportAnonymousScripts` is set to `true`, anonymous scripts will have `__playwright_evaluation_script__` as their URL.
+   * @param options 
+   */
+  startJSCoverage(options?: {
+    /**
+     * Whether anonymous scripts generated by the page should be reported. Defaults to `false`.
+     */
+    reportAnonymousScripts?: boolean;
+
+    /**
+     * Whether to reset coverage on every navigation. Defaults to `true`.
+     */
+    resetOnNavigation?: boolean;
+  }): Promise<void>;
+
+  /**
+   * Returns the array of coverage reports for all stylesheets
+   * 
+   * **NOTE** CSS Coverage doesn't include dynamically injected style tags without sourceURLs.
+   */
+  stopCSSCoverage(): Promise<Array<{
+    /**
+     * StyleSheet URL
+     */
+    url: string;
+
+    /**
+     * StyleSheet content, if available.
+     */
+    text?: string;
+
+    /**
+     * StyleSheet ranges that were used. Ranges are sorted and non-overlapping.
+     */
+    ranges: Array<{
+      /**
+       * A start offset in text, inclusive
+       */
+      start: number;
+
+      /**
+       * An end offset in text, exclusive
+       */
+      end: number;
+    }>;
+  }>>;
+
+  /**
+   * Returns the array of coverage reports for all scripts
+   * 
+   * **NOTE** JavaScript Coverage doesn't include anonymous scripts by default. However, scripts with sourceURLs are reported.
+   */
+  stopJSCoverage(): Promise<Array<{
+    /**
+     * Script URL
+     */
+    url: string;
+
+    /**
+     * Script ID
+     */
+    scriptId: string;
+
+    /**
+     * Script content, if applicable.
+     */
+    source?: string;
+
+    /**
+     * V8-specific coverage format.
+     */
+    functions: Array<{
+      functionName: string;
+
+      isBlockCoverage: boolean;
+
+      ranges: Array<{
+        count: number;
+
+        startOffset: number;
+
+        endOffset: number;
+      }>;
+    }>;
+  }>>;
+}
+
+/**
+ * Firefox browser instance does not expose Firefox-specific features.
+ */
+export interface FirefoxBrowser extends Browser {
+
+}
+
+/**
+ * WebKit browser instance does not expose WebKit-specific features.
+ */
+export interface WebKitBrowser extends Browser {
+
+}
+
+export interface BrowserContextOptions {
+  /**
+   * Whether to automatically download all the attachments. Defaults to `false` where all the downloads are canceled.
+   */
+  acceptDownloads?: boolean;
+
+  /**
+   * Toggles bypassing page's Content-Security-Policy.
+   */
+  bypassCSP?: boolean;
+
+  /**
+   * Emulates `'prefers-colors-scheme'` media feature, supported values are `'light'`, `'dark'`, `'no-preference'`. See `page.emulateMedia(params)` for more details. Defaults to '`light`'.
+   */
+  colorScheme?: "dark"|"light"|"no-preference";
+
+  /**
+   * Specify device scale factor (can be thought of as dpr). Defaults to `1`.
+   */
+  deviceScaleFactor?: number;
+
+  /**
+   * An object containing additional HTTP headers to be sent with every request. All header values must be strings.
+   */
+  extraHTTPHeaders?: { [key: string]: string; };
+
+  geolocation?: Geolocation;
+
+  /**
+   * Specifies if viewport supports touch events. Defaults to false.
+   */
+  hasTouch?: boolean;
+
+  /**
+   * Credentials for HTTP authentication.
+   */
+  httpCredentials?: HTTPCredentials;
+
+  /**
+   * Whether to ignore HTTPS errors during navigation. Defaults to `false`.
+   */
+  ignoreHTTPSErrors?: boolean;
+
+  /**
+   * Whether the `meta viewport` tag is taken into account and touch events are enabled. Defaults to `false`. Not supported in Firefox.
+   */
+  isMobile?: boolean;
+
+  /**
+   * Whether or not to enable JavaScript in the context. Defaults to `true`.
+   */
+  javaScriptEnabled?: boolean;
+
+  /**
+   * Specify user locale, for example `en-GB`, `de-DE`, etc. Locale will affect `navigator.language` value, `Accept-Language` request header value as well as number and date formatting rules.
+   */
+  locale?: string;
+
+  /**
+   * Logger sink for Playwright logging.
+   */
+  logger?: Logger;
+
+  /**
+   * Whether to emulate network being offline. Defaults to `false`.
+   */
+  offline?: boolean;
+
+  /**
+   * A list of permissions to grant to all pages in this context. See `browserContext.grantPermissions(permissions[, options])` for more details.
+   */
+  permissions?: Array<string>;
+
+  /**
+   * Network proxy settings to use with this context. Note that browser needs to be launched with the global proxy for this option to work. If all contexts override the proxy, global proxy will be never used and can be any string, for example `launch({ proxy: { server: 'per-context' } })`.
+   */
+  proxy?: {
+    /**
+     * Proxy to be used for all requests. HTTP and SOCKS proxies are supported, for example `http://myproxy.com:3128` or `socks5://myproxy.com:3128`. Short form `myproxy.com:3128` is considered an HTTP proxy.
+     */
+    server: string;
+
+    /**
+     * Optional coma-separated domains to bypass proxy, for example `".com, chromium.org, .domain.com"`.
+     */
+    bypass?: string;
+
+    /**
+     * Optional username to use if HTTP proxy requires authentication.
+     */
+    username?: string;
+
+    /**
+     * Optional password to use if HTTP proxy requires authentication.
+     */
+    password?: string;
+  };
+
+  /**
+   * Enables HAR recording for all pages into `recordHar.path` file. If not specified, the HAR is not recorded. Make sure to await `browserContext.close()` for the HAR to be saved.
+   */
+  recordHar?: {
+    /**
+     * Optional setting to control whether to omit request content from the HAR. Defaults to `false`.
+     */
+    omitContent?: boolean;
+
+    /**
+     * Path on the filesystem to write the HAR file to.
+     */
+    path: string;
+  };
+
+  /**
+   * Enables video recording for all pages into `recordVideo.dir` directory. If not specified videos are not recorded. Make sure to await `browserContext.close()` for videos to be saved.
+   */
+  recordVideo?: {
+    /**
+     * Path to the directory to put videos into.
+     */
+    dir: string;
+
+    /**
+     * Optional dimensions of the recorded videos. If not specified the size will be equal to `viewport`. If `viewport` is not configured explicitly the video size defaults to 1280x720. Actual picture of each page will be scaled down if necessary to fit the specified size.
+     */
+    size?: {
+      /**
+       * Video frame width.
+       */
+      width: number;
+
+      /**
+       * Video frame height.
+       */
+      height: number;
+    };
+  };
+
+  /**
+   * Populates context with given storage state. This method can be used to initialize context with logged-in information obtained via `browserContext.storageState([options])`. Either a path to the file with saved storage, or an object with the following fields:
+   */
+  storageState?: string|{
+    /**
+     * Optional cookies to set for context
+     */
+    cookies?: Array<{
+      /**
+       * **required**
+       */
+      name: string;
+
+      /**
+       * **required**
+       */
+      value: string;
+
+      /**
+       * Optional either url or domain / path are required
+       */
+      url?: string;
+
+      /**
+       * Optional either url or domain / path are required
+       */
+      domain?: string;
+
+      /**
+       * Optional either url or domain / path are required
+       */
+      path?: string;
+
+      /**
+       * Optional Unix time in seconds.
+       */
+      expires?: number;
+
+      /**
+       * Optional httpOnly flag
+       */
+      httpOnly?: boolean;
+
+      /**
+       * Optional secure flag
+       */
+      secure?: boolean;
+
+      /**
+       * Optional sameSite flag
+       */
+      sameSite?: "Lax"|"None"|"Strict";
+    }>;
+
+    /**
+     * Optional localStorage to set for context
+     */
+    origins?: Array<{
+      origin: string;
+
+      localStorage: Array<{
+        name: string;
+
+        value: string;
+      }>;
+    }>;
+  };
+
+  /**
+   * Changes the timezone of the context. See ICU’s `metaZones.txt` for a list of supported timezone IDs.
+   */
+  timezoneId?: string;
+
+  /**
+   * Specific user agent to use in this context.
+   */
+  userAgent?: string;
+
+  /**
+   * **NOTE** Use `recordVideo` instead, it takes precedence over `videoSize`. Specifies dimensions of the automatically recorded video. Can only be used if `videosPath` is set. If not specified the size will be equal to `viewport`. If `viewport` is not configured explicitly the video size defaults to 1280x720. Actual picture of the page will be scaled down if necessary to fit specified size.
+   */
+  videoSize?: {
+    /**
+     * Video frame width.
+     */
+    width: number;
+
+    /**
+     * Video frame height.
+     */
+    height: number;
+  };
+
+  /**
+   * **NOTE** Use `recordVideo` instead, it takes precedence over `videosPath`. Enables video recording for all pages to `videosPath` directory. If not specified, videos are not recorded. Make sure to await `browserContext.close()` for videos to be saved.
+   */
+  videosPath?: string;
+
+  /**
+   * Sets a consistent viewport for each page. Defaults to an 1280x720 viewport. `null` disables the default viewport.
+   */
+  viewport?: null|ViewportSize;
+}
+
+export interface ViewportSize {
+  /**
+   * page width in pixels.
+   */
+  width: number;
+
+  /**
+   * page height in pixels.
+   */
+  height: number;
+}
+
+export interface HTTPCredentials {
+  username: string;
+
+  password: string;
+}
+
+export interface Geolocation {
+  /**
+   * Latitude between -90 and 90.
+   */
+  latitude: number;
+
+  /**
+   * Longitude between -180 and 180.
+   */
+  longitude: number;
+
+  /**
+   * Non-negative accuracy value. Defaults to `0`.
+   */
+  accuracy?: number;
+}
+
+export interface LaunchOptions {
+  /**
+   * Additional arguments to pass to the browser instance. The list of Chromium flags can be found here.
+   */
+  args?: Array<string>;
+
+  /**
+   * Enable Chromium sandboxing. Defaults to `false`.
+   */
+  chromiumSandbox?: boolean;
+
+  /**
+   * **Chromium-only** Whether to auto-open a Developer Tools panel for each tab. If this option is `true`, the `headless` option will be set `false`.
+   */
+  devtools?: boolean;
+
+  /**
+   * If specified, accepted downloads are downloaded into this directory. Otherwise, temporary directory is created and is deleted when browser is closed.
+   */
+  downloadsPath?: string;
+
+  /**
+   * Specify environment variables that will be visible to the browser. Defaults to `process.env`.
+   */
+  env?: { [key: string]: string|number|boolean; };
+
+  /**
+   * Path to a browser executable to run instead of the bundled one. If `executablePath` is a relative path, then it is resolved relative to the current working directory. Note that Playwright only works with the bundled Chromium, Firefox or WebKit, use at your own risk.
+   */
+  executablePath?: string;
+
+  /**
+   * Firefox user preferences. Learn more about the Firefox user preferences at `about:config`.
+   */
+  firefoxUserPrefs?: { [key: string]: string|number|boolean; };
+
+  /**
+   * Close the browser process on SIGHUP. Defaults to `true`.
+   */
+  handleSIGHUP?: boolean;
+
+  /**
+   * Close the browser process on Ctrl-C. Defaults to `true`.
+   */
+  handleSIGINT?: boolean;
+
+  /**
+   * Close the browser process on SIGTERM. Defaults to `true`.
+   */
+  handleSIGTERM?: boolean;
+
+  /**
+   * Whether to run browser in headless mode. More details for Chromium and Firefox. Defaults to `true` unless the `devtools` option is `true`.
+   */
+  headless?: boolean;
+
+  /**
+   * If `true`, Playwright does not pass its own configurations args and only uses the ones from `args`. If an array is given, then filters out the given default arguments. Dangerous option; use with care. Defaults to `false`.
+   */
+  ignoreDefaultArgs?: boolean|Array<string>;
+
+  /**
+   * Logger sink for Playwright logging.
+   */
+  logger?: Logger;
+
+  /**
+   * Network proxy settings.
+   */
+  proxy?: {
+    /**
+     * Proxy to be used for all requests. HTTP and SOCKS proxies are supported, for example `http://myproxy.com:3128` or `socks5://myproxy.com:3128`. Short form `myproxy.com:3128` is considered an HTTP proxy.
+     */
+    server: string;
+
+    /**
+     * Optional coma-separated domains to bypass proxy, for example `".com, chromium.org, .domain.com"`.
+     */
+    bypass?: string;
+
+    /**
+     * Optional username to use if HTTP proxy requires authentication.
+     */
+    username?: string;
+
+    /**
+     * Optional password to use if HTTP proxy requires authentication.
+     */
+    password?: string;
+  };
+
+  /**
+   * Slows down Playwright operations by the specified amount of milliseconds. Useful so that you can see what is going on.
+   */
+  slowMo?: number;
+
+  /**
+   * Maximum time in milliseconds to wait for the browser instance to start. Defaults to `30000` (30 seconds). Pass `0` to disable timeout.
+   */
+  timeout?: number;
+}
+
+export interface ConnectOptions {
+  /**
+   * A browser websocket endpoint to connect to. **required**
+   */
+  wsEndpoint: string;
+
+  /**
+   * Slows down Playwright operations by the specified amount of milliseconds. Useful so that you can see what is going on. Defaults to 0.
+   */
+  slowMo?: number;
+
+  /**
+   * Logger sink for Playwright logging.
+   */
+  logger?: Logger;
+
+  /**
+   * Maximum time in milliseconds to wait for the connection to be established. Defaults to `30000` (30 seconds). Pass `0` to disable timeout.
+   */
+  timeout?: number;
+}
+
+interface ElementHandleWaitForSelectorOptions {
+  /**
+   * Defaults to `'visible'`. Can be either:
+   *  - `'attached'` - wait for element to be present in DOM.
+   *  - `'detached'` - wait for element to not be present in DOM.
+   *  - `'visible'` - wait for element to have non-empty bounding box and no `visibility:hidden`. Note that element without any content or with `display:none` has an empty bounding box and is not considered visible.
+   *  - `'hidden'` - wait for element to be either detached from DOM, or have an empty bounding box or `visibility:hidden`. This is opposite to the `'visible'` option.
+   */
+  state?: "attached"|"detached"|"hidden"|"visible";
+
+  /**
+   * Maximum time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+   */
+  timeout?: number;
+}
+
+export interface Cookie {
+  name: string;
+
+  value: string;
+
+  domain: string;
+
+  path: string;
+
+  /**
+   * Unix time in seconds.
+   */
+  expires: number;
+
+  httpOnly: boolean;
+
+  secure: boolean;
+
+  sameSite: "Lax"|"None"|"Strict";
+}
+
+interface PageWaitForSelectorOptions {
+  /**
+   * Defaults to `'visible'`. Can be either:
+   *  - `'attached'` - wait for element to be present in DOM.
+   *  - `'detached'` - wait for element to not be present in DOM.
+   *  - `'visible'` - wait for element to have non-empty bounding box and no `visibility:hidden`. Note that element without any content or with `display:none` has an empty bounding box and is not considered visible.
+   *  - `'hidden'` - wait for element to be either detached from DOM, or have an empty bounding box or `visibility:hidden`. This is opposite to the `'visible'` option.
+   */
+  state?: "attached"|"detached"|"hidden"|"visible";
+
+  /**
+   * Maximum time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultTimeout(timeout)` or `page.setDefaultTimeout(timeout)` methods.
+   */
+  timeout?: number;
+}
+
+interface PageWaitForFunctionOptions {
+  /**
+   * If `polling` is `'raf'`, then `pageFunction` is constantly executed in `requestAnimationFrame` callback. If `polling` is a number, then it is treated as an interval in milliseconds at which the function would be executed. Defaults to `raf`.
+   */
+  polling?: number|"raf";
+
+  /**
+   * maximum time to wait for in milliseconds. Defaults to `30000` (30 seconds). Pass `0` to disable timeout. The default value can be changed by using the `browserContext.setDefaultTimeout(timeout)`.
+   */
+  timeout?: number;
+}
+
+type Devices = {
+  "Blackberry PlayBook": DeviceDescriptor;
+  "Blackberry PlayBook landscape": DeviceDescriptor;
+  "BlackBerry Z30": DeviceDescriptor;
+  "BlackBerry Z30 landscape": DeviceDescriptor;
+  "Galaxy Note 3": DeviceDescriptor;
+  "Galaxy Note 3 landscape": DeviceDescriptor;
+  "Galaxy Note II": DeviceDescriptor;
+  "Galaxy Note II landscape": DeviceDescriptor;
+  "Galaxy S III": DeviceDescriptor;
+  "Galaxy S III landscape": DeviceDescriptor;
+  "Galaxy S5": DeviceDescriptor;
+  "Galaxy S5 landscape": DeviceDescriptor;
+  "iPad (gen 6)": DeviceDescriptor;
+  "iPad (gen 6) landscape": DeviceDescriptor;
+  "iPad (gen 7)": DeviceDescriptor;
+  "iPad (gen 7) landscape": DeviceDescriptor;
+  "iPad Mini": DeviceDescriptor;
+  "iPad Mini landscape": DeviceDescriptor;
+  "iPad Pro 11": DeviceDescriptor;
+  "iPad Pro 11 landscape": DeviceDescriptor;
+  "iPhone 6": DeviceDescriptor;
+  "iPhone 6 landscape": DeviceDescriptor;
+  "iPhone 6 Plus": DeviceDescriptor;
+  "iPhone 6 Plus landscape": DeviceDescriptor;
+  "iPhone 7": DeviceDescriptor;
+  "iPhone 7 landscape": DeviceDescriptor;
+  "iPhone 7 Plus": DeviceDescriptor;
+  "iPhone 7 Plus landscape": DeviceDescriptor;
+  "iPhone 8": DeviceDescriptor;
+  "iPhone 8 landscape": DeviceDescriptor;
+  "iPhone 8 Plus": DeviceDescriptor;
+  "iPhone 8 Plus landscape": DeviceDescriptor;
+  "iPhone SE": DeviceDescriptor;
+  "iPhone SE landscape": DeviceDescriptor;
+  "iPhone X": DeviceDescriptor;
+  "iPhone X landscape": DeviceDescriptor;
+  "iPhone XR": DeviceDescriptor;
+  "iPhone XR landscape": DeviceDescriptor;
+  "iPhone 11": DeviceDescriptor;
+  "iPhone 11 landscape": DeviceDescriptor;
+  "iPhone 11 Pro": DeviceDescriptor;
+  "iPhone 11 Pro landscape": DeviceDescriptor;
+  "iPhone 11 Pro Max": DeviceDescriptor;
+  "iPhone 11 Pro Max landscape": DeviceDescriptor;
+  "JioPhone 2": DeviceDescriptor;
+  "JioPhone 2 landscape": DeviceDescriptor;
+  "Kindle Fire HDX": DeviceDescriptor;
+  "Kindle Fire HDX landscape": DeviceDescriptor;
+  "LG Optimus L70": DeviceDescriptor;
+  "LG Optimus L70 landscape": DeviceDescriptor;
+  "Microsoft Lumia 550": DeviceDescriptor;
+  "Microsoft Lumia 550 landscape": DeviceDescriptor;
+  "Microsoft Lumia 950": DeviceDescriptor;
+  "Microsoft Lumia 950 landscape": DeviceDescriptor;
+  "Nexus 10": DeviceDescriptor;
+  "Nexus 10 landscape": DeviceDescriptor;
+  "Nexus 4": DeviceDescriptor;
+  "Nexus 4 landscape": DeviceDescriptor;
+  "Nexus 5": DeviceDescriptor;
+  "Nexus 5 landscape": DeviceDescriptor;
+  "Nexus 5X": DeviceDescriptor;
+  "Nexus 5X landscape": DeviceDescriptor;
+  "Nexus 6": DeviceDescriptor;
+  "Nexus 6 landscape": DeviceDescriptor;
+  "Nexus 6P": DeviceDescriptor;
+  "Nexus 6P landscape": DeviceDescriptor;
+  "Nexus 7": DeviceDescriptor;
+  "Nexus 7 landscape": DeviceDescriptor;
+  "Nokia Lumia 520": DeviceDescriptor;
+  "Nokia Lumia 520 landscape": DeviceDescriptor;
+  "Nokia N9": DeviceDescriptor;
+  "Nokia N9 landscape": DeviceDescriptor;
+  "Pixel 2": DeviceDescriptor;
+  "Pixel 2 landscape": DeviceDescriptor;
+  "Pixel 2 XL": DeviceDescriptor;
+  "Pixel 2 XL landscape": DeviceDescriptor;
+  [key: string]: DeviceDescriptor;
+}
diff --git a/utils/doclint/check_public_api/JSBuilder.js b/utils/doclint/check_public_api/JSBuilder.js
index 4da2c06390..fd8feef0e0 100644
--- a/utils/doclint/check_public_api/JSBuilder.js
+++ b/utils/doclint/check_public_api/JSBuilder.js
@@ -99,7 +99,7 @@ function checkSources(sources) {
           parent = parent.parent;
         className = path.basename(parent.fileName,  '.js');
       }
-      if (className && !excludeClasses.has(className) && !fileName.endsWith('/protocol.ts')) {
+      if (className && !excludeClasses.has(className) && !fileName.endsWith('/protocol.ts') && !fileName.endsWith('/protocol.d.ts') && !fileName.endsWith('/types.d.ts')) {
         excludeClasses.add(className);
         classes.push(serializeClass(className, symbol, node));
         inheritance.set(className, parentClasses(node));
diff --git a/utils/generate_types/index.js b/utils/generate_types/index.js
index 702fe97aa4..775f7187d8 100644
--- a/utils/generate_types/index.js
+++ b/utils/generate_types/index.js
@@ -27,12 +27,14 @@ const objectDefinitions = [];
 const handledMethods = new Set();
 /** @type {Documentation} */
 let documentation;
+let hadChanges = false;
+
 (async function() {
   const typesDir = path.join(PROJECT_DIR, 'types');
   if (!fs.existsSync(typesDir))
     fs.mkdirSync(typesDir)
-  fs.writeFileSync(path.join(typesDir, 'protocol.d.ts'), fs.readFileSync(path.join(PROJECT_DIR, 'src', 'server', 'chromium', 'protocol.ts')), 'utf8');
-  fs.writeFileSync(path.join(typesDir, 'trace.d.ts'), fs.readFileSync(path.join(PROJECT_DIR, 'src', 'trace', 'traceTypes.ts')), 'utf8');
+  writeFile(path.join(typesDir, 'protocol.d.ts'), fs.readFileSync(path.join(PROJECT_DIR, 'src', 'server', 'chromium', 'protocol.ts'), 'utf8'));
+  writeFile(path.join(typesDir, 'trace.d.ts'), fs.readFileSync(path.join(PROJECT_DIR, 'src', 'trace', 'traceTypes.ts'), 'utf8'));
   const browser = await chromium.launch();
   const page = await browser.newPage();
   const api = await Source.readFile(path.join(PROJECT_DIR, 'docs', 'api.md'));
@@ -75,12 +77,22 @@ ${generateDevicesTypes()}
 `;
   for (const [key, value] of Object.entries(exported))
     output = output.replace(new RegExp('\\b' + key + '\\b', 'g'), value);
-  fs.writeFileSync(path.join(typesDir, 'types.d.ts'), output, 'utf8');
+  writeFile(path.join(typesDir, 'types.d.ts'), output);
+  process.exit(hadChanges && process.argv.includes('--check-clean') ? 1 : 0);
 })().catch(e => {
   console.error(e);
   process.exit(1);
 });
 
+function writeFile(filePath, content) {
+  const existing = fs.readFileSync(filePath, 'utf8');
+  if (existing === content)
+    return;
+  hadChanges = true;
+  console.error(`Writing //${path.relative(PROJECT_DIR, filePath)}`);
+  fs.writeFileSync(filePath, content, 'utf8');
+}
+
 /**
  * @param {string} overriddes
  */
diff --git a/utils/watch.js b/utils/watch.js
index 5ea01ad09b..f6ad51b6a8 100644
--- a/utils/watch.js
+++ b/utils/watch.js
@@ -25,7 +25,13 @@ const spawns = [
 process.on('exit', () => spawns.forEach(s => s.kill()));
 
 runOnChanges(['src/protocol/protocol.yml'], 'utils/generate_channels.js');
-runOnChanges(['docs/api.md', 'utils/generate_types/overrides.d.ts', 'utils/generate_types/exported.json'], 'utils/generate_types/index.js');
+runOnChanges([
+  'docs/api.md',
+  'utils/generate_types/overrides.d.ts',
+  'utils/generate_types/exported.json',
+  'src/server/chromium/protocol.ts',
+  'src/trace/traceTypes.ts',
+], 'utils/generate_types/index.js');
 
 /**
  * @param {string[][]} paths