import { Reducers } from "./types";
export declare const has: (obj: any, key: string) => boolean, get: (obj: any, key: string, defaultValue: any) => any, set: (obj: any, keys: any, val: any) => void;
export declare class CombineReducersError extends Error {
    reducers: Reducers;
    constructor(message: string, reducers: Reducers);
}