public function is_empty() {
        $items = $this->get_items();
        $displayeditems = array_filter($items, function($item) {
            return $item->typ !== 'pagebreak';
        });
        return !$displayeditems;
    }
public function is_empty() {
        $items = $this->get_items();
        $displayeditems = array_filter($items, function($item) {
            return $item->typ !== 'pagebreak';
        });
        return !$displayeditems;
    }
public function is_empty ( ) { $ items = $ this -> get_items ( ) ; $ displayeditems = array_filter ( $ items , function ( $ item ) { return $ item -> typ !== 'pagebreak' ; } ) ; return ! $ displayeditems ; }
Is the items list empty?
@return bool
Is the items list empty?