code: public function findDraftsBy(array $criteria, array $sort = null, $limit = null, $skip = null)
      {
          $criteria['isDraft'] = true;
  
          /** @noinspection PhpUndefinedClassInspection */
          /** @noinspection PhpUndefinedMethodInspection */
          return parent::findBy($criteria, $sort, $limit, $skip);
      }
docs: Find entities in draft mode.
  
  Sets the key 'isDraft' with the value true and proxies to parent::findBy()
  
  @param array $criteria
  @param array|null $sort
  @param null|int  $limit
  @param null|int  $skip
  
  @return \MongoCursor