original_string: protected function render()
      {
          if (!isset($this->items[0])) {
              return '';
          }
          foreach ($this->items as $itemId => $item) {
              $item->setCollapsable(
                  self::$id, 
                  self::$id . $itemId, 
                  in_array($itemId, $this->openedItems));
          }
          $this->setAttribute('id', self::$id);
          $this->addCssClass($this->itemType . '-group');
          return $this
              ->html('<div' . $this->getEltDecorationStr() . '>')
              ->html(implode("\n", $this->items))
              ->html('</div>')
              ->getHtml();
      }
code: protected function render()
      {
          if (!isset($this->items[0])) {
              return '';
          }
          foreach ($this->items as $itemId => $item) {
              $item->setCollapsable(
                  self::$id, 
                  self::$id . $itemId, 
                  in_array($itemId, $this->openedItems));
          }
          $this->setAttribute('id', self::$id);
          $this->addCssClass($this->itemType . '-group');
          return $this
              ->html('<div' . $this->getEltDecorationStr() . '>')
              ->html(implode("\n", $this->items))
              ->html('</div>')
              ->getHtml();
      }
code_tokens: protected function render ( ) { if ( ! isset ( $ this -> items [ 0 ] ) ) { return '' ; } foreach ( $ this -> items as $ itemId => $ item ) { $ item -> setCollapsable ( self :: $ id , self :: $ id . $ itemId , in_array ( $ itemId , $ this -> openedItems ) ) ; } $ this -> setAttribute ( 'id' , self :: $ id ) ; $ this -> addCssClass ( $ this -> itemType . '-group' ) ; return $ this -> html ( '<div' . $ this -> getEltDecorationStr ( ) . '>' ) -> html ( implode ( "\n" , $ this -> items ) ) -> html ( '</div>' ) -> getHtml ( ) ; }
docstring: Display the box at the end of configuration
  @return string
docstring_tokens: Display the box at the end of configuration