public function backupTotp(AccountTwoFactorTotpBackupRequest $request)
    {
        $currentUser = $request->user($this->getGuard());
        $twoFactor = $currentUser->getTwoFactor();
        $twoFactor['totp']['backup'] = $this->generateTotpBackups();
        $twoFactor['totp']['backup_at'] = now()->toDateTimeString();

        $currentUser->fill(['two_factor' => $twoFactor])->forceSave();

        return intend([
            'back' => true,
            'with' => ['success' => trans('cortex/auth::messages.verification.twofactor.totp.rebackup')],
        ]);
    }