anchor.diff:  ])
   class AppComponent {
     final LeaderboardService _leaderboardService;
  -  final SocketService _socketService;
     
  -  AppComponent(this._leaderboardService, this._socketService) {}
  +  AppComponent(this._leaderboardService) {}
   }
  
positive.code: //    WelcomeComponent, PlayComponent, LeaderboardComponent,
      ROUTER_DIRECTIVES
    ],
    providers: const [materialProviders, ROUTER_PROVIDERS, SocketService, LeaderboardService],
  )
  @RouteConfig(const [
    const Route(path: '/welcome', name: 'Welcome', component: WelcomeComponent, useAsDefault: true),
  
negative.code: import 'package:simon/src/components/leaderboard/leaderboard_component.dart';
  
  import 'package:simon/src/services/leaderboard_service.dart';
  
  @Component(
    selector: 'my-app',
  