import { SafeAny } from '@ngx-simple/core/types';
export declare function initCloneObject(object: SafeAny): any;
export declare function copyArray(source: SafeAny): any[];
/**
 * 深度克隆
 * @param target 克隆目标
 * @param cache 缓存(解决循环依赖问题)
 * @returns 返回克隆的目标值
 */
export declare function clone<T>(target: T, cache?: WeakMap<object, T>): T;