getBiometricAuth method
Implementation
@override
Future<String> getBiometricAuth({IOSPolicy? iosPolicy}) async {
const methodChannel = MethodChannel('biometric_callback');
final bioMetrics = await methodChannel
.invokeMethod<String>('authenticateWithBiometrics', <String, dynamic>{
'iosPolicy': iosPolicy?.name,
});
return bioMetrics ?? "";
}