import React from 'react';
import { CascadeData, LoadData } from './interface';
declare const _default: React.MemoExoticComponent<({ items, selectedKey, expandedKey, disabled, parents, loadData, topExtraRender, index }: {
    items?: CascadeData[] | undefined;
    selectedKey?: string | undefined;
    expandedKey?: string | undefined;
    disabled?: boolean | undefined;
    parents?: CascadeData[] | undefined;
    loadData?: LoadData | undefined;
    topExtraRender?: ((props: {
        index: number;
        parents?: CascadeData[] | undefined;
        items?: CascadeData[] | undefined;
    }) => React.ReactNode) | undefined;
    index: number;
}) => JSX.Element>;
export default _default;