/**
 * 树形结构数据广度遍历
 * @param arr
 * @param fn
 */
export declare const breadthForEach: (tree: any[] | {
    [key: string]: any;
}, fn: Function, option?: {
    isFind?: boolean;
}) => any;
/**
 * 树形结构数据广度遍历查找数据，返回第一个满足条件的项，可以找到最短路径
 * @param arr
 * @param fn
 */
export declare const breadthFind: (arr: any[], fn: (item: any, parentItem: any) => boolean) => any;
/**
 * 获取树结构最大的广度数是多少
 */
export declare const getMaxBreadthNum: (tree: {
    [key: string]: any;
}, fn?: Function) => number;
/**
 * 获取树结构最深有多少层
 * @param tree
 */
export declare const getDepthLevel: (tree: any[] | {
    [key: string]: any;
}) => number;