/** * 将origin的方法扩展到target * @param {class} target * @param {class} origin */ export declare function extend(Target: any, ...mixins: any[]): any; /** * 拷贝对象除(consturctor, prototype, name)之外的自身属性属性, 包括不可枚举属性 * @param {object} target * @param {object} source */ export declare function copyProperties(target: any, source: any): void;