docs: function (name) {
              if (name == null || this._params == null) {
                  return null;
              }
              for (var i = 0, length = this._params.length; i < length; i++) {
                  var elt = this._params[i];
                  if (elt.name === name) {
                      return elt.value;
                  }
              }
              return null;
          }