export default DataManager;
declare class DataManager extends EventEmitter<string | symbol> {
    constructor(data?: {});
    _epoch: number;
    _data: {};
    _diffs: any[];
    mergeData(source: any, epochIncrease?: boolean, deleteNullObj?: boolean): void;
    _mergeObject(target: any, source: any, _epoch?: number, deleteNullObj?: boolean): void;
    /**
     * 判断 某个路径下 或者 某个数据对象 最近有没有更新
     * @param {Array | Object} pathArray | object
     */
    isChanging(pathArray: any[] | any): boolean;
    setDefault(pathArray: any, defaultValue?: {}, root?: {}): any;
    getByPath(pathArray: any, root?: {}): {};
}
import EventEmitter from "eventemitter3";