{
  "oneOf": [
    {
      "$ref": "http://asyncapi.com/definitions/1.1.0/message.json"
    },
    {
      "type": "object",
      "required": [
        "oneOf"
      ],
      "additionalProperties": false,
      "patternProperties": {
        "^x-": {
          "$ref": "http://asyncapi.com/definitions/1.1.0/vendorExtension.json"
        }
      },
      "properties": {
        "oneOf": {
          "type": "array",
          "minItems": 2,
          "items": {
            "$ref": "http://asyncapi.com/definitions/1.1.0/message.json"
          }
        }
      }
    }
  ],
  "$schema": "http://json-schema.org/draft-04/schema#",
  "id": "http://asyncapi.com/definitions/1.1.0/operation.json"
}