Function generateMfaAuthenticatorAppQrCodeUrl

generateMfaAuthenticatorAppQrCodeUrl(
    mfaAuthenticatorAppSetup:
        | {
            mfaCodeCallback: (code: string) => Promise<void>;
            secretCode: string | undefined;
        }
        | undefined,
): string
| undefined
Generate a QR code link to display to a user after they have initiated authenticator app MFA setup.

Example
```
const mfaAuthenticatorAppSetupQrCodeUrl =
  mfaService.generateMfaAuthenticatorAppQrCodeUrl()
if (mfaAuthenticatorAppSetupQrCodeUrl) {
  // use mfaAuthenticatorAppSetupQrCodeUrl to display QR code to user
}
```
Parameters
- mfaAuthenticatorAppSetup:
      | {
          mfaCodeCallback: (code: string) => Promise<void>;
          secretCode: string | undefined;
      }
      | undefined
Returns string | undefined
- Defined in src/apps/services/cognito.ts:439