/**
  * index
  *
  * @return \Xpressengine\Presenter\RendererInterface
  */
 public function index()
 {
     if ($this->permissionHandler->hasList($this->boardId) === false) {
         throw new AccessDeniedHttpException();
     }
     /** @var DataImporter $dataImporter */
     $dataImporter = app('xe.board.dataImporter')->init($this);
     return Presenter::makeAll('index', $dataImporter->index());
 }