{
  "$schema": "http://json-schema.org/draft-04/schema#",
  "type": "object",
  "title": "Room Event",
  "description": "In addition to the Event fields, Room Events MUST have the following additional field.",
  "allOf":[{
    "$ref": "core/event.json"
  }],
  "properties": {
    "room_id": {
      "type": "string",
      "description": "The ID of the room associated with this event."
    }
  },
  "required": ["room_id"]
}