Example of GoRouter usage with codegen replacement for ChangeNotifier

[hajajmaor]

Using GoRouter, using refreshListenable: ref.watch(userStateProvider), must be a Listenableobject.
Using Firebase auth, as a demo, the userStateProvider will look something like this:

final ChangeNotifierProvider<UserNotifier> userStateProvider =
    ChangeNotifierProvider<UserNotifier>(
  (ChangeNotifierProviderRef<Object?> ref) => UserNotifier(ref),
);

class UserNotifier extends ChangeNotifier {
  Ref ref;
  UserNotifier(this.ref) {
    _init();
  }

  void _init() {
    FirebaseAuth.instance.authStateChanges().listen((User? user) {
      _user = user;
      if (user != null) {
      /// perform something
      } else {
      /// perform something else
      }
      notifyListeners();
    });
  }

GoRouter

import './routes.dart';

part 'router.g.dart';

@Riverpod(keepAlive: true)
GoRouter goRouter(GoRouterRef ref) {
  return GoRouter(
    routes: $appRoutes,
    debugLogDiagnostics: true,
    refreshListenable: ref.watch(userStateProvider),
  );
}

With codegen, an info is showing:
Generated providers should only depend on other generated providers. Failing to do so may break rules such as "provider_dependencies".dart(avoid_manual_providers_as_generated_provider_dependency)

How should the 'userStateProvider' be generated to use with GoRouter's refreshListenable field?

Describe why existing examples/articles do not cover this case
There is no example of using GoRouter with the use of the refreshListenable field with the codegen provider.

Additional context
Add any other context or screenshots about the documentation request here.

[rrousselGit]

See https://github.com/rrousselGit/riverpod/tree/master/packages/riverpod_lint#unsupported_provider_value-riverpod_generator-only