docs: function (jsonData, requestObject) {
              var reqSerializer = requestObject ? requestObject.requestJsonSerializer : null;
              var options = reqSerializer ? reqSerializer.options : null;
              var instance = reqSerializer ? reqSerializer.instance : null;
  
              if (instance) {
                  return ariaUtilsJson.convertToJsonString(jsonData, ariaUtilsJson.copy(options, true), instance);
              } else {
                  options = options || this._requestJsonSerializer.options;
                  instance = this._requestJsonSerializer.instance;
  
                  return ariaUtilsJson.convertToJsonString(jsonData, ariaUtilsJson.copy(options, true), instance);
              }
          }