/**
 * @file Util
 * @author yumao<yuzhang.lille@gmail.com>
 */
export declare function isDate(value: any): boolean;
export declare function isRegExp(value: any): boolean;
export declare function isWindow(obj: any): boolean;
export declare function isFunction(value: any): boolean;
export declare function isDefined(value: any): boolean;
export declare function equals(o1: any, o2: any): any;