Can not get svg download to work

[urban-hostel]

I have the issue that I woul like to download the svg fiel but I cant get the code to work

downloadQRCodeAsSVG(event: Event): void {
event.preventDefault();
const qrData = this.qrCodeForm.get('qrCodeResult.customUrl')?.value || '';

if (!qrData) {
  return;
}

QRCode.toString(qrData, { type: 'svg', errorCorrectionLevel: 'medium' }, (err: Error | null, svgString: string) => {
  if (err) {
    console.error('Error generating QR code:', err);
    return;
  }

  const blob = new Blob([svgString], { type: 'image/svg+xml' });
  const url = URL.createObjectURL(blob);
  const link = document.createElement('a');
  link.href = url;
  link.download = 'qr-code.svg';
  link.click();
  URL.revokeObjectURL(url);
});

}

I get the error

Expected 0 arguments, but got 3.ts(2554)
(property) type: string

But to my understanding the arguments are needed or not?

Thank you for you support in advance!
Mike