/**
 *  获取树状结构，如果已经是树状结构，直接返回
 *  @param dataSource
 *  @returns {*[]|*}
 */
export declare function getTreeData(dataSource: any): any;
/**
 *  转换为树状结构
 *  @param rows
 *  @param keyField
 *  @param parentKeyField
 *  @returns {*[]|*}
 */
export declare function convertToTree(rows: any, keyField?: string, parentKeyField?: string): any;
/**
 *  获取所有的父节点
 *  @param treeData 树状结构数据
 *  @param fieldValue 用于查找的值
 *  @param field 用户查找的键，默认id
 *  @returns {*|[]*}
 */
export declare function findParentNodes(treeData: any, fieldValue: any, field?: string): any;
/**
 *  查找keys中对应树的叶子节点，如果keys为null或undefined，查找树中所有叶子节点
 *  @param treeData
 *  @param keys
 *  @param keyField
 */
export declare function findLeafNodes(treeData: any, keys: any, keyField?: string): any;
/**
 *  删除节点
 *  @param treeData
 *  @param key
 *  @param keyField
 */
export declare function removeNode(treeData: any, key: any, keyField?: string): null | undefined;
/**
 *  过滤树
 *  @param treeData
 *  @param filter 过滤函数
 *  @returns {*[]|*}
 */
export declare function filterTree(treeData: any, filter?: (node: any) => boolean): any;
/**
 * 将树平展
 */
export declare function treeToArr(data: any, res?: any, status?: boolean): any;