{
  "swagger": "2.0",
  "info": {
    "title": "Swagger Fixture",
    "version": "1.0"
  },
  "paths": {
    "/a/": {
      "get": {
        "parameters": [
          {
            "name": "",
            "in": "body",
            "schema": { "$ref": "#/definitions/A1" }
          }
        ],
        "responses": {
          "200": {
            "description": "200 response",
            "schema": {
              "type": "array",
              "items": { "$ref": "#/definitions/A1" }
            }
          }
        }
      }
    }
  },
  "definitions": {
    "A1": {
      "type": "object",
      "properties": {
        "id": { "type": "integer" },
        "name": { "type": "string" },
        "a1":{ "$ref": "#/definitions/A1" }
      }
    }
  }
}