code: public function findPublished(StatusableInterface $element)
      {
          $qa = $this->createAggregationQueryWithLanguageAndPublished($element->getLanguage());
          $qa->match(array('contentId' => $element->getContentId()));
  
          return $this->hydrateAggregateQuery($qa);
      }
docs: @param StatusableInterface $element
  
  @return array