Doctrine\MongoDB\Aggregation\Stage\Out::__construct PHP Method

    public function __construct(Builder $builder, $collection)
    {
        parent::__construct($builder);
        $this->out($collection);
    }

 /**
  * @param Builder $builder
  * @param string $collection
  * @param DocumentManager $documentManager
  */
 public function __construct(Builder $builder, $collection, DocumentManager $documentManager)
 {
     $this->dm = $documentManager;
     parent::__construct($builder, $collection);
 }