diff --git a/docs/src/release-notes-csharp.md b/docs/src/release-notes-csharp.md
index 400b3c0104..5d28afaf0f 100644
--- a/docs/src/release-notes-csharp.md
+++ b/docs/src/release-notes-csharp.md
@@ -327,7 +327,7 @@ Playwright Trace Viewer is now **available online** at https://trace.playwright.
 
 ![image](https://user-images.githubusercontent.com/746130/141877402-e486643d-72c7-4db3-8844-ed2072c5d676.png)
 
-## Ubuntu ARM64 support + more
+### Ubuntu ARM64 support + more
 
 - Playwright now supports **Ubuntu 20.04 ARM64**. You can now run Playwright tests inside Docker on Apple M1 and on Raspberry Pi.
 - You can now use Playwright to install stable version of Edge on Linux:
diff --git a/packages/playwright-test/types/test.d.ts b/packages/playwright-test/types/test.d.ts
index b231ec13cd..3f61e29531 100644
--- a/packages/playwright-test/types/test.d.ts
+++ b/packages/playwright-test/types/test.d.ts
@@ -3029,6 +3029,23 @@ import type { Suite } from '@playwright/test/types/testReporter';
 
 type AsymmetricMatcher = Record<string, any>;
 
+type AsymmetricMatchers = {
+  any(sample: unknown): AsymmetricMatcher;
+  anything(): AsymmetricMatcher;
+  arrayContaining(sample: Array<unknown>): AsymmetricMatcher;
+  closeTo(sample: number, precision?: number): AsymmetricMatcher;
+  objectContaining(sample: Record<string, unknown>): AsymmetricMatcher;
+  stringContaining(sample: string): AsymmetricMatcher;
+  stringMatching(sample: string | RegExp): AsymmetricMatcher;
+}
+
+type Inverse<Matchers> = {
+  /**
+   * Inverse next matcher. If you know how to test something, `.not` lets you test its opposite.
+   */
+  not: Matchers;
+};
+
 type IfAny<T, Y, N> = 0 extends (1 & T) ? Y : N;
 type ExtraMatchers<T, Type, Matchers> = T extends Type ? Matchers : IfAny<T, Matchers, {}>;
 
@@ -3054,6 +3071,16 @@ type MakeMatchers<R, T> = BaseMatchers<R, T> & {
   ExtraMatchers<T, Locator, LocatorAssertions> &
   ExtraMatchers<T, APIResponse, APIResponseAssertions>;
 
+type BaseExpect = {
+  // Removed following methods because they rely on a test-runner integration from Jest which we don't support:
+  // assertions(numberOfAssertions: number): void;
+  // extractExpectedAssertionsErrors(): ExpectedAssertionsErrors;
+  // hasAssertions(): void;
+  extend(matchers: any): void;
+  getState(): expectType.MatcherState;
+  setState(state: Partial<expectType.MatcherState>): void;
+}
+
 export type Expect = {
   <T = unknown>(actual: T, messageOrOptions?: string | { message?: string }): MakeMatchers<void, T>;
   soft: <T = unknown>(actual: T, messageOrOptions?: string | { message?: string }) => MakeMatchers<void, T>;
@@ -3063,23 +3090,9 @@ export type Expect = {
      */
      not: BaseMatchers<Promise<void>, T>;
   };
-
-  extend(arg0: any): void;
-  getState(): expectType.MatcherState;
-  setState(state: Partial<expectType.MatcherState>): void;
-  any(expectedObject: any): AsymmetricMatcher;
-  anything(): AsymmetricMatcher;
-  arrayContaining(sample: Array<unknown>): AsymmetricMatcher;
-  objectContaining(sample: Record<string, unknown>): AsymmetricMatcher;
-  stringContaining(expected: string): AsymmetricMatcher;
-  stringMatching(expected: string | RegExp): AsymmetricMatcher;
-  /**
-   * Removed following methods because they rely on a test-runner integration from Jest which we don't support:
-   * - assertions()
-   * - extractExpectedAssertionsErrors()
-   * – hasAssertions()
-   */
-};
+} & BaseExpect &
+  AsymmetricMatchers &
+  Inverse<Omit<AsymmetricMatchers, 'any' | 'anything'>>;
 
 type Awaited<T> = T extends PromiseLike<infer U> ? U : T;
 
diff --git a/tests/playwright-test/expect.spec.ts b/tests/playwright-test/expect.spec.ts
index 4c7051ce88..dd21af5a49 100644
--- a/tests/playwright-test/expect.spec.ts
+++ b/tests/playwright-test/expect.spec.ts
@@ -114,6 +114,7 @@ test('should work with default expect prototype functions', async ({ runTSC, run
       );
       expect('foo').toEqual(expect.any(String));
       expect('foo').toEqual(expect.anything());
+      expect('hello world').toEqual(expect.not.stringContaining('text'));
     });
   `;
   {
diff --git a/utils/generate_types/index.js b/utils/generate_types/index.js
index 2211f04753..a0219a5283 100644
--- a/utils/generate_types/index.js
+++ b/utils/generate_types/index.js
@@ -99,7 +99,6 @@ class TypesGenerator {
       return this.writeComment(docClass.comment) + '\n';
     }, (className, methodName, overloadIndex) => {
       if (className === 'SuiteFunction' && methodName === '__call') {
-        console.log(className, methodName, overloadIndex);
         const cls = this.documentation.classes.get('Test');
         const method = cls.membersArray.find(m => m.alias === 'describe' && m.overloadIndex === overloadIndex);
         return this.memberJSDOC(method, '  ').trimLeft();
diff --git a/utils/generate_types/overrides-test.d.ts b/utils/generate_types/overrides-test.d.ts
index 44c584ecd3..ca0bb5f9ca 100644
--- a/utils/generate_types/overrides-test.d.ts
+++ b/utils/generate_types/overrides-test.d.ts
@@ -256,6 +256,23 @@ import type { Suite } from '@playwright/test/types/testReporter';
 
 type AsymmetricMatcher = Record<string, any>;
 
+type AsymmetricMatchers = {
+  any(sample: unknown): AsymmetricMatcher;
+  anything(): AsymmetricMatcher;
+  arrayContaining(sample: Array<unknown>): AsymmetricMatcher;
+  closeTo(sample: number, precision?: number): AsymmetricMatcher;
+  objectContaining(sample: Record<string, unknown>): AsymmetricMatcher;
+  stringContaining(sample: string): AsymmetricMatcher;
+  stringMatching(sample: string | RegExp): AsymmetricMatcher;
+}
+
+type Inverse<Matchers> = {
+  /**
+   * Inverse next matcher. If you know how to test something, `.not` lets you test its opposite.
+   */
+  not: Matchers;
+};
+
 type IfAny<T, Y, N> = 0 extends (1 & T) ? Y : N;
 type ExtraMatchers<T, Type, Matchers> = T extends Type ? Matchers : IfAny<T, Matchers, {}>;
 
@@ -281,6 +298,16 @@ type MakeMatchers<R, T> = BaseMatchers<R, T> & {
   ExtraMatchers<T, Locator, LocatorAssertions> &
   ExtraMatchers<T, APIResponse, APIResponseAssertions>;
 
+type BaseExpect = {
+  // Removed following methods because they rely on a test-runner integration from Jest which we don't support:
+  // assertions(numberOfAssertions: number): void;
+  // extractExpectedAssertionsErrors(): ExpectedAssertionsErrors;
+  // hasAssertions(): void;
+  extend(matchers: any): void;
+  getState(): expectType.MatcherState;
+  setState(state: Partial<expectType.MatcherState>): void;
+}
+
 export type Expect = {
   <T = unknown>(actual: T, messageOrOptions?: string | { message?: string }): MakeMatchers<void, T>;
   soft: <T = unknown>(actual: T, messageOrOptions?: string | { message?: string }) => MakeMatchers<void, T>;
@@ -290,23 +317,9 @@ export type Expect = {
      */
      not: BaseMatchers<Promise<void>, T>;
   };
-
-  extend(arg0: any): void;
-  getState(): expectType.MatcherState;
-  setState(state: Partial<expectType.MatcherState>): void;
-  any(expectedObject: any): AsymmetricMatcher;
-  anything(): AsymmetricMatcher;
-  arrayContaining(sample: Array<unknown>): AsymmetricMatcher;
-  objectContaining(sample: Record<string, unknown>): AsymmetricMatcher;
-  stringContaining(expected: string): AsymmetricMatcher;
-  stringMatching(expected: string | RegExp): AsymmetricMatcher;
-  /**
-   * Removed following methods because they rely on a test-runner integration from Jest which we don't support:
-   * - assertions()
-   * - extractExpectedAssertionsErrors()
-   * – hasAssertions()
-   */
-};
+} & BaseExpect &
+  AsymmetricMatchers &
+  Inverse<Omit<AsymmetricMatchers, 'any' | 'anything'>>;
 
 type Awaited<T> = T extends PromiseLike<infer U> ? U : T;