src/SmsGatewayChannel.php
public function send($notifiable, Notification $notification)
    {
        $to = $this->getTo($notifiable);

        $message = $notification->toSmsGateway($notifiable);

        if (is_string($message)) {
            $message = new SmsGatewayMessage($message);
        }

        return $this->client->send($this->buildParams($message, $to));
    }
public function send($notifiable, Notification $notification)
    {
        $to = $this->getTo($notifiable);

        $message = $notification->toSmsGateway($notifiable);

        if (is_string($message)) {
            $message = new SmsGatewayMessage($message);
        }

        return $this->client->send($this->buildParams($message, $to));
    }
Send the given notification.

@param mixed        $notifiable
@param Notification $notification

@return array|void