import React from 'react';
import { KeepAliveHookOptions } from '../../types';
export declare const useKeepAlive: (key: string, option?: KeepAliveHookOptions | undefined) => {
    isBack: boolean;
    useNotBackEffect: (func: Function, deps?: any[]) => void;
    useBackActive: (func: Function, deps?: any[]) => void;
    useMemState: <S>(state: S, keyName: string) => [S, React.Dispatch<React.SetStateAction<S>>];
    useMemRef: <S_1>(ref: S_1, keyName: string) => React.MutableRefObject<S_1>;
};
export default useKeepAlive;