class @beta Efl.Ui.Collection_Focus_Manager extends Efl.Ui.Focus.Manager_Calc {
  [[Internal class which implements collection specific behaviour, cannot be used outside of @Efl.Ui.Collection.]]
  implements {
      Efl.Ui.Focus.Manager.manager_focus { set; }
      Efl.Ui.Focus.Manager.request_move;
  }
}