setupLocator function
        
dynamic
setupLocator()
        
     
    
    
Implementation
setupLocator() {
  locator.registerLazySingleton(() => NotifierService());
  locator.registerLazySingleton(() => NavigationService());
  locator.registerLazySingleton(() => API());
  locator.registerLazySingleton(() => WidgetsService());
  locator.registerLazySingleton(() => FlySwitchService());
  locator.registerLazySingleton(() => JsonRegistryService());
  locator.registerFactory(() => WidgetLoaderController());
}