export declare type KeepScrollType = Partial<{
    scrollEl: HTMLElement;
    getScrollTop: () => number;
    setScrollTop: (scrollTop: number) => void;
}>;
export declare function useKeepScroll(keepScrollOpt: KeepScrollType): {
    onScroll: () => void;
    scrollFn: () => void;
    scrollTop: number;
};