docs: function (id) {
                  var dynamicIds = this._dynamicIds;
                  if (dynamicIds) {
                      var index = arrayUtils.indexOf(dynamicIds, id);
                      if (index != -1) {
                          idMgr.releaseId(id);
                          if (dynamicIds.length == 1) {
                              this._dynamicIds = null;
                          } else {
                              arrayUtils.removeAt(dynamicIds, index);
                          }
                      }
                  }
              }