code: public function selectRender(ViewEvent $e)
      {
          if ($this->isForceRender()) {
              return $this->renderer;
          }
  
          $model = $e->getModel();
          if ($model instanceof TwigModel) {
              return $this->renderer;
          }
  
          return null;
      }
docs: @param \Zend\View\ViewEvent $e
  
  @return \Zend\View\Renderer\RendererInterface|null