docs: function (listeners, context) {
                  if (listeners.type) {
                      this._chainListener(listeners, "keydown", {
                          fn : keyDownToType,
                          scope : this,
                          args : ariaUtilsType.isArray(listeners.type) ? listeners.type : [listeners.type]
                      });
                      delete listeners.type;
                  }
              }