public function getFcm()
    {
        if (!isset($this->_fcm)) {
            $this->_fcm = $this->createFcm();
        }
        return $this->_fcm;
    }
public function getFcm()
    {
        if (!isset($this->_fcm)) {
            $this->_fcm = $this->createFcm();
        }
        return $this->_fcm;
    }
public function getFcm ( ) { if ( ! isset ( $ this -> _fcm ) ) { $ this -> _fcm = $ this -> createFcm ( ) ; } return $ this -> _fcm ; }
Returns FCM client
@return \paragraph1\phpFCM\Client
Returns FCM client