class BackupManagerService {

    public boolean beginFullBackup(@UserIdInt int userId, FullBackupJob scheduledJob) {
        UserBackupManagerService userBackupManagerService =
                getServiceForUserIfCallerHasPermission(userId, "beginFullBackup()");

        return userBackupManagerService != null
                && userBackupManagerService.beginFullBackup(scheduledJob);
    }

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

}