anchor.diff:     * to requests.
      */
     HttpDefaultHeaders headers;
  -  /** DEPRECATED */
  -  List<Function> transformRequest;
  -  /** DEPRECATED */
  -  List<Function> transformResponse;
   
     /**
      * The default cache.  To enable caching application-wide, instantiate with a
  
positive.code:     config = r.config;
    }
  
  /**
    * The response's data.  Either a string or a transformed object.
  */
    get data => responseText;
  
    /**
  
negative.code:  *
   * - For all requests: `Accept: application/json, text/plain, * / *`
   * - For POST, PUT, PATCH requests: `Content-Type: application/json`
   *
   * # Caching
   *
  