code: public function clearWidgetCache()
      {
          // Get Widgets
          $widgets = $this->getWidgets(false);
          $userId = $this->token->getToken()->getUser()->getId();
  
          // Clear Cache
          foreach ($widgets as $widget) {
              $this->cache->deleteItem($widget->getId().$userId);
          }
      }
docs: Clear current user widget cache.
  
  @throws \Psr\Cache\InvalidArgumentException