import { Reducer } from 'redux';
export declare type primitive = string | number | boolean | undefined | null;
export declare type DeepReadonly<T> = T extends primitive ? T : T extends Array<infer U> ? DeepReadonlyArray<U> : DeepReadonlyObject<T>;
export interface DeepReadonlyArray<T> extends ReadonlyArray<DeepReadonly<T>> {
}
export declare type DeepReadonlyObject<T> = {
    readonly [P in keyof T]: DeepReadonly<T[P]>;
};
export declare type Action<T extends string, P> = {
    type: T;
    payload: P;
};
export declare type IntersectionOf<T> = ({
    [K in keyof T]: (x: T[K]) => void;
}) extends Record<keyof T, (x: infer V) => void> ? V : never;
export declare const action: <T extends string, P>(type: T, payload: P) => Action<T, P>;
export declare type ActionHandler<S, AC> = AC extends (...args: any[]) => Action<infer T, infer P> ? {
    [k in T]: (s: DeepReadonly<S>, p: P) => S;
} : never;
export declare type Handler<S, ACS> = IntersectionOf<{
    [K in keyof ACS]: ActionHandler<S, ACS[K]>;
}>;
export declare type PartialActionHandler<S, AC> = AC extends (...args: any[]) => Action<infer T, infer P> ? {
    [k in T]: (s: DeepReadonly<S>, p: P) => Partial<S>;
} : never;
export declare type PartialHandler<S, ACS> = IntersectionOf<{
    [K in keyof ACS]: PartialActionHandler<S, ACS[K]>;
}>;
export declare const createReducer: <S, ACs>(initialState: S, handler: IntersectionOf<{ [K in keyof ACs]: ActionHandler<S, ACs[K]>; }>) => Reducer<S>;
export declare const createMergeReducer: <S, ACs>(initialState: S, handler: IntersectionOf<{ [K in keyof ACs]: PartialActionHandler<S, ACs[K]>; }>) => Reducer<S>;
export declare const ResetState = "__create-reducer-extra-reset-state__";
export declare const resetState: () => Action<"__create-reducer-extra-reset-state__", {}>;
export declare const createResetReducer: <S, ACs>(initialState: S, handler: IntersectionOf<{ [K in keyof ACs]: ActionHandler<S, ACs[K]>; }>) => Reducer<S>;
export declare const createResetMergeReducer: <S, ACs>(initialState: S, handler: IntersectionOf<{ [K in keyof ACs]: PartialActionHandler<S, ACs[K]>; }>) => Reducer<S>;