{
  "type": "object",
  "required": [
    "$ref"
  ],
  "properties": {
    "$ref": {
      "type": "string",
      "format": "uri"
    }
  },
  "$schema": "http://json-schema.org/draft-04/schema#",
  "id": "http://asyncapi.com/definitions/1.1.0/Reference.json"
}