intro-to-flutter-14.dart

@override
Widget build(BuildContext context) => MultiProvider(
      providers: [
        Provider<RestClient>.value(value: _restClient),
        Provider<MessagesRepository>.value(value: _messagesRepository),
        Provider<ThreadDataLayer>.value(
          value: ApiThreadDataLayer(
            _restClient,
            () => _imageUrlProvider.baseImageUrl().first,
          ),
        ),
      ],
      child: …
    );