anchor.diff:    }
   
     static Reducer<T> _createReducer<T>(
  -      Map<String, Dependent<T>> slots, Reducer<T> reducer) {
  -    final Map<String, SubReducer<T>> subReducerMap = slots.map((String path,
  +      Map<String, Dependent<T>> pages, Reducer<T> reducer) {
  +    final Map<String, SubReducer<T>> subReducerMap = pages.map((String path,
               Dependent<T> dependent) =>
           MapEntry<String, SubReducer<T>>(path, dependent.createSubReducer()));
   
  
positive.code:     List<Middleware<T>> middleware,
    })  : assert(preloadedState != null,
              'Expected the preloadedState to be non-null value.'),
          assert(pages != null, 'Expected the slots to be non-null value.'),
          _store = createPageStore<T>(
            preloadedState,
            _createReducer<T>(pages, reducer),
  
negative.code: ///             AppRoutes<T>(
  ///               preloadedState: T(),
  ///               middleware:[],
  ///               pages: {
  ///                 'message': MsgConn() + MessageComponent(),
  ///                 'personal': PersonalConn() + PersonalComponent(),
  ///               },
  