Doctrine\ODM\MongoDB\PersistentCollection::exists PHP 메소드

    public function exists(Closure $p)
    {
        $this->initialize();
        return $this->coll->exists($p);
    }

 /**
  * {@inheritdoc}
  */
 public function exists(\Closure $p)
 {
     return $this->collection->exists($p);
 }