json_schema: {
      "definitions": {
          "metadata": {
              "additionalProperties": {
                  "type": "array"
              },
              "type": "object"
          },
          "replies": {
              "items": {
                  "properties": {
                      "metadata": {
                          "$ref": "#/definitions/metadata"
                      },
                      "reply": {
                          "type": "string"
                      }
                  },
                  "required": [
                      "reply"
                  ],
                  "type": "object"
              },
              "type": "array"
          }
      },
      "properties": {
          "feeds": {
              "items": {
                  "properties": {
                      "name": {
                          "type": "string"
                      },
                      "replies": {
                          "$ref": "#/definitions/replies"
                      }
                  },
                  "required": [
                      "name",
                      "replies"
                  ],
                  "type": "object"
              },
              "type": "array"
          },
          "query": {
              "type": "string"
          }
      },
      "required": [
          "query",
          "feeds"
      ],
      "type": "object"
  }