code: public function onControllerBackendPlentyConnector(Enlight_Event_EventArgs $args)
      {
          $this->template->addTemplateDir(
              $this->pluginDirectory . '/Resources/Views/'
          );
  
          return $this->pluginDirectory . '/Controller/Backend/PlentyConnector.php';
      }
docs: @param Enlight_Event_EventArgs $args
  
  @return string