=\r\n | ((...args: any[]) => { payload: P })\r\n | ((...args: any[]) => { payload: P; meta: any })\r\n | ((...args: any[]) => { payload: P; error: any })\r\n | ((...args: any[]) => { payload: P; meta: any; error: any })\r\n\r\n/**\r\n * Internal version of `ActionCreatorWithPreparedPayload`. Not to be used externally.\r\n *\r\n * @internal\r\n */\r\nexport type _ActionCreatorWithPreparedPayload<\r\n PA extends PrepareAction | void = void\r\n> = IfPrepareActionMethodProvided<\r\n PA,\r\n _ActionCreatorWithPreparedPayload (\r\n type: T\r\n): PayloadActionCreator = PayloadActionCreator \r\n\r\n/**\r\n * The return value of `createSlice`\r\n *\r\n * @public\r\n */\r\nexport interface Slice<\r\n State = any,\r\n CaseReducers extends SliceCaseReducers = <\r\n O extends Partial {\r\n return function curriedGetDefaultMiddleware(options) {\r\n return getDefaultMiddleware(options)\r\n }\r\n}\r\n\r\n/**\r\n * Returns any array containing the default middleware installed by\r\n * `configureStore()`. Useful if you want to configure your store with a custom\r\n * `middleware` array but still keep the default set.\r\n *\r\n * @return The default middleware used by `configureStore()`.\r\n *\r\n * @public\r\n *\r\n * @deprecated Prefer to use the callback notation for the `middleware` option in `configureStore`\r\n * to access a pre-typed `getDefaultMiddleware` instead.\r\n */\r\nexport function getDefaultMiddleware<\r\n S = any,\r\n O extends Partial = Middlewares,\r\n E extends Enhancers = Enhancers\r\n> {\r\n /**\r\n * A single reducer function that will be used as the root reducer, or an\r\n * object of slice reducers that will be passed to `combineReducers()`.\r\n */\r\n reducer: Reducer) => M) | M\r\n\r\n /**\r\n * Whether to enable Redux DevTools integration. Defaults to `true`.\r\n *\r\n * Additional configuration can be done by passing Redux DevTools options\r\n */\r\n devTools?: boolean | DevToolsOptions\r\n\r\n /**\r\n * The initial state, same as Redux's createStore.\r\n * You may optionally specify it to hydrate the state\r\n * from the server in universal apps, or to restore a previously serialized\r\n * user session. If you use `combineReducers()` to produce the root reducer\r\n * function (either directly or indirectly by passing an object as `reducer`),\r\n * this must be an object with the same shape as the reducer map keys.\r\n */\r\n /*\r\n Not 100% correct but the best approximation we can get:\r\n - if S is a `CombinedState` applying a second `CombinedState` on it does not change anything.\r\n - if it is not, there could be two cases:\r\n - `ReducersMapObject` is correct\r\n - `Reducer` is wrong and `S` would be correct.\r\n As we cannot distinguish between those two cases without adding another generic parameter,\r\n we just make the pragmatic assumption that the latter almost never happens.\r\n */\r\n preloadedState?: PreloadedState = ReadonlyArray = Middlewares\r\n> extends Store = Middlewares,\r\n E extends Enhancers = Enhancers\r\n> = ToolkitStore, A, M> &\r\n ExtractStoreExtensions = [ThunkMiddlewareFor],\r\n E extends Enhancers = [StoreEnhancer]\r\n>(options: ConfigureStoreOptions()\r\n\r\n const {\r\n reducer = undefined,\r\n middleware = curriedGetDefaultMiddleware(),\r\n devTools = true,\r\n preloadedState = undefined,\r\n enhancers = undefined,\r\n } = options || {}\r\n\r\n let rootReducer: Reducer(\r\n builderCallback: (builder: ActionReducerMapBuilder) => void\r\n): [\r\n CaseReducers,\r\n CaseReducer = []\r\n let defaultCaseReducer: CaseReducer\r\n ) {\r\n if (process.env.NODE_ENV !== 'production') {\r\n /*\r\n to keep the definition by the user in line with actual behavior,\r\n we enforce `addCase` to always be called before calling `addMatcher`\r\n as matching cases take precedence over matchers\r\n */\r\n if (actionMatchers.length > 0) {\r\n throw new Error(\r\n '`builder.addCase` should only be called before calling `builder.addMatcher`'\r\n )\r\n }\r\n if (defaultCaseReducer) {\r\n throw new Error(\r\n '`builder.addCase` should only be called before calling `builder.addDefaultCase`'\r\n )\r\n }\r\n }\r\n const type =\r\n typeof typeOrActionCreator === 'string'\r\n ? typeOrActionCreator\r\n : typeOrActionCreator.type\r\n if (!type) {\r\n throw new Error(\r\n '`builder.addCase` cannot be called with an empty action type'\r\n )\r\n }\r\n if (type in actionsMap) {\r\n throw new Error(\r\n '`builder.addCase` cannot be called with two reducers for the same action type'\r\n )\r\n }\r\n actionsMap[type] = reducer\r\n return builder\r\n },\r\n addMatcher(\r\n matcher: TypeGuard,\r\n reducer: CaseReducer\r\n> = ACR &\r\n {\r\n [T in keyof ACR]: ACR[T] extends {\r\n reducer(s: S, action?: infer A): any\r\n }\r\n ? {\r\n prepare(...a: never[]): Omit = ReadonlyArray<\r\n ActionMatcherDescription = Array<\r\n ActionMatcherDescription = (\r\n state: Draft,\r\n action: A\r\n) => NoInfer | void | Draft(x: unknown): x is () => S {\r\n return typeof x === 'function'\r\n}\r\n\r\nexport type ReducerWithInitialState> = Reducer & {\r\n getInitialState: () => S\r\n}\r\n\r\nlet hasWarnedAboutObjectNotation = false\r\n\r\n/**\r\n * A utility function that allows defining a reducer as a mapping from action\r\n * type to *case reducer* functions that handle these action types. The\r\n * reducer's initial state is passed as the first argument.\r\n *\r\n * @remarks\r\n * The body of every case reducer is implicitly wrapped with a call to\r\n * `produce()` from the [immer](https://github.com/mweststrate/immer) library.\r\n * This means that rather than returning a new state object, you can also\r\n * mutate the passed-in state object directly; these mutations will then be\r\n * automatically and efficiently translated into copies, giving you both\r\n * convenience and immutability.\r\n *\r\n * @overloadSummary\r\n * This overload accepts a callback function that receives a `builder` object as its argument.\r\n * That builder provides `addCase`, `addMatcher` and `addDefaultCase` functions that may be\r\n * called to define what actions this reducer will handle.\r\n *\r\n * @param initialState - `State | (() => State)`: The initial state that should be used when the reducer is called the first time. This may also be a \"lazy initializer\" function, which should return an initial state value when called. This will be used whenever the reducer is called with `undefined` as its state value, and is primarily useful for cases like reading initial state from `localStorage`.\r\n * @param builderCallback - `(builder: Builder) => void` A callback that receives a *builder* object to define\r\n * case reducers via calls to `builder.addCase(actionCreatorOrType, reducer)`.\r\n * @example\r\n```ts\r\nimport {\r\n createAction,\r\n createReducer,\r\n AnyAction,\r\n PayloadAction,\r\n} from \"@reduxjs/toolkit\";\r\n\r\nconst increment = createAction>(\r\n initialState: S | (() => S),\r\n builderCallback: (builder: ActionReducerMapBuilder) => void\r\n): ReducerWithInitialState\r\n\r\n/**\r\n * A utility function that allows defining a reducer as a mapping from action\r\n * type to *case reducer* functions that handle these action types. The\r\n * reducer's initial state is passed as the first argument.\r\n *\r\n * The body of every case reducer is implicitly wrapped with a call to\r\n * `produce()` from the [immer](https://github.com/mweststrate/immer) library.\r\n * This means that rather than returning a new state object, you can also\r\n * mutate the passed-in state object directly; these mutations will then be\r\n * automatically and efficiently translated into copies, giving you both\r\n * convenience and immutability.\r\n * \r\n * @overloadSummary\r\n * This overload accepts an object where the keys are string action types, and the values\r\n * are case reducer functions to handle those action types.\r\n *\r\n * @param initialState - `State | (() => State)`: The initial state that should be used when the reducer is called the first time. This may also be a \"lazy initializer\" function, which should return an initial state value when called. This will be used whenever the reducer is called with `undefined` as its state value, and is primarily useful for cases like reading initial state from `localStorage`.\r\n * @param actionsMap - An object mapping from action types to _case reducers_, each of which handles one specific action type.\r\n * @param actionMatchers - An array of matcher definitions in the form `{matcher, reducer}`.\r\n * All matching reducers will be executed in order, independently if a case reducer matched or not.\r\n * @param defaultCaseReducer - A \"default case\" reducer that is executed if no case reducer and no matcher\r\n * reducer was executed for this action.\r\n *\r\n * @example\r\n```js\r\nconst counterReducer = createReducer(0, {\r\n increment: (state, action) => state + action.payload,\r\n decrement: (state, action) => state - action.payload\r\n})\r\n\r\n// Alternately, use a \"lazy initializer\" to provide the initial state\r\n// (works with either form of createReducer)\r\nconst initialState = () => 0\r\nconst counterReducer = createReducer(initialState, {\r\n increment: (state, action) => state + action.payload,\r\n decrement: (state, action) => state - action.payload\r\n})\r\n```\r\n \r\n * Action creators that were generated using [`createAction`](./createAction) may be used directly as the keys here, using computed property syntax:\r\n\r\n```js\r\nconst increment = createAction('increment')\r\nconst decrement = createAction('decrement')\r\n\r\nconst counterReducer = createReducer(0, {\r\n [increment]: (state, action) => state + action.payload,\r\n [decrement.type]: (state, action) => state - action.payload\r\n})\r\n```\r\n * @public\r\n */\r\nexport function createReducer<\r\n S extends NotFunction,\r\n defaultCaseReducer?: CaseReducer\r\n): ReducerWithInitialState\r\n\r\nexport function createReducer>(\r\n initialState: S | (() => S),\r\n mapOrBuilderCallback:\r\n | CaseReducers) => void),\r\n actionMatchers: ReadonlyActionMatcherDescriptionCollection