code: protected function paginationMenu()
  	{
  		/** @var AttributeBagInterface $objSessionBag */
  		$objSessionBag = System::getContainer()->get('session')->getBag('contao_backend');
  
  		$session = $objSessionBag->all();
  		$filter = ($GLOBALS['TL_DCA'][$this->strTable]['list']['sorting']['mode'] == 4) ? $this->strTable.'_'.CURRENT_ID : $this->strTable;
  
  		list($offset, $limit) = explode(',', $this->limit);
  
  		// Set the limit filter based on the page number
  		if (isset($_GET['lp']))
  		{
  			$lp = (int) Input::get('lp') - 1;
  
  			if ($lp >= 0 && $lp < ceil($this->total / $limit))
  			{
  				$session['filter'][$filter]['limit'] = ($lp * $limit) . ',' . $limit;
  				$objSessionBag->replace($session);
  			}
  
  			$this->redirect(preg_replace('/&(amp;)?lp=[^&]+/i', '', Environment::get('request')));
  		}
  
  		if ($limit) // see #6923
  		{
  			Input::setGet('lp', $offset / $limit + 1);
  		}
  
  		$objPagination = new Pagination($this->total, $limit, 7, 'lp', new BackendTemplate('be_pagination'), true);
  
  		return $objPagination->generate();
  	}
docs: Return a pagination menu to browse results
  
  @return string