{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "#/components/schemas/Extras",
  "title": "Extras",
  "type": "object",
  "description": "Extras object. Currently only allows for [push](https://www.ably.io/documentation/general/push/publish#channel-broadcast-example) extra.",
  "properties": {
    "push": {
      "$ref": "#/components/schemas/Push"
    }
  }
}