Swift_Transport_Esmtp_AuthHandler::setUsername PHP Method

    public function setUsername($username)
    {
        $this->_username = $username;
    }

 protected function getSwiftmailer_Mailer_Default_TransportService()
 {
     $a = new \Swift_Transport_Esmtp_AuthHandler(array(0 => $this->get('d7b86ba75496549983e49587f82792eac0988f5ebef144382419adbfa6a6b9ca_1'), 1 => $this->get('d7b86ba75496549983e49587f82792eac0988f5ebef144382419adbfa6a6b9ca_2'), 2 => $this->get('d7b86ba75496549983e49587f82792eac0988f5ebef144382419adbfa6a6b9ca_3')));
     $a->setUsername('*****@*****.**');
     $a->setPassword('Alaa_Essam');
     $a->setAuthMode('login');
     $this->services['swiftmailer.mailer.default.transport'] = $instance = new \Swift_Transport_EsmtpTransport(new \Swift_Transport_StreamBuffer(new \Swift_StreamFilters_StringReplacementFilterFactory()), array(0 => $a), new \Swift_Events_SimpleEventDispatcher());
     $instance->setHost('smtp.gmail.com');
     $instance->setPort(465);
     $instance->setEncryption('ssl');
     $instance->setTimeout(30);
     $instance->setSourceIp(NULL);
     return $instance;
 }