render method Null safety

Future<int> render()

Pre-renders the reCAPTCHA widget on the page.

Returns a Future that resolves with the reCAPTCHA widget ID.

If you do not pre-render the widget, it will be rendered before the sign-in request is called. Depending on the network connection speed, this may cause a small delay before the widget is displayed.


Future<int> render() async {
  throw UnimplementedError('render() is not implemented');