class BackupManagerService {

    public void restoreAtInstall(@UserIdInt int userId, String packageName, int token) {
        UserBackupManagerService userBackupManagerService =
                getServiceForUserIfCallerHasPermission(userId, "restoreAtInstall()");

        if (userBackupManagerService != null) {
            userBackupManagerService.restoreAtInstall(packageName, token);
        }
    }

    public  BackupManagerService(
            Context context, Trampoline trampoline, HandlerThread backupThread);

}