/**
 * @obj
 * @desc 操作对象的相关方法。所有函数不会改变实参的值，会返回操作后的结果。
 * @method valueEqual - 判断两个对象的值是否相等
 */
interface ObjectModule {
  shallowCompare: (firstObj: AnyObject, secondObj: AnyObject) => boolean;
  deepCompare: (firstObj: AnyObject, secondObj: AnyObject) => boolean;
  has: (object: AnyObject, key: string) => boolean;
}