public boolean notify(String platformTag, int platformId, Notification notification,
            String channel) throws RemoteException {
        Bundle args = new NotifyNotificationArgs(platformTag, platformId, notification, channel)
                .toBundle();
        return ResultArgs.fromBundle(mService.notifyNotificationWithChannel(args)).success;
    }
Requests a notification be shown.
@param platformTag The tag to identify the notification.
@param platformId The id to identify the notification.
@param notification The notification.
@param channel The name of the channel in the Trusted Web Activity client app to display the
               notification on.
@return Whether notifications or the notification channel are blocked for the client app.
@throws RemoteException If the Service dies while responding to the request.
@throws SecurityException If verification with the TrustedWebActivityService fails.
customtabs/src/android/support/customtabs/trusted/TrustedWebActivityServiceWrapper.java