$qrCodeUrl = $totp->generateUrl($totpSecret, $this->currentOrLastAttemptedUser());
$svg = $totp->generateQrCodeSvg($qrCodeUrl);
$qrCodeUrl = $totp->generateUrl($totpSecret, $this->currentOrLastAttemptedUser());
$svg = $totp->generateQrCodeSvg($qrCodeUrl);