public function ref($id): Reference
	{
		$ref = new $this->reference_class($this->smalldb, $this, $id);
		if ($this->debug_logger) {
			$this->debug_logger->afterReferenceCreated(null, $ref);
		}
		return $ref;
	}
public function ref($id): Reference
	{
		$ref = new $this->reference_class($this->smalldb, $this, $id);
		if ($this->debug_logger) {
			$this->debug_logger->afterReferenceCreated(null, $ref);
		}
		return $ref;
	}
public function ref ( $ id ) : Reference { $ ref = new $ this -> reference_class ( $ this -> smalldb , $ this , $ id ) ; if ( $ this -> debug_logger ) { $ this -> debug_logger -> afterReferenceCreated ( null , $ ref ) ; } return $ ref ; }
Helper to create Reference to this machine.

@see AbstractBackend::ref
Helper to create Reference to this machine .