message: AutoLd returning DetectedLanguage object instead of just string
diff: "type": "object",
  "properties": {
  "detectedLanguage": {
  - "type": "string",
  + "$ref": "#/definitions/DetectedLanguage",
  "description": "If 'language' is set to 'auto' for the document in the request this field will contain a 2 letter ISO 639-1 representation of the language detected for this document."
  }
  }
  