class MyWidget extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MultiRepositoryProvider(
      providers: [
        RepositoryProvider<RepositoryA>(
          builder: (context) => RepositoryA(),
        ),
        RepositoryProvider<RepositoryB>(
          builder: (context) => RepositoryB(),
        ),
        RepositoryProvider<RepositoryC>(
          builder: (context) => RepositoryC(),
        ),
      ],
      child: ChildA(),
    );
  }
}