/**
 * @author       Richard Davey <rich@photonstorm.com>
 * @copyright    2018 Photon Storm Ltd.
 * @license      {@link https://github.com/photonstorm/phaser/blob/master/license.txt|MIT License}
 */
/**
 * This is a slightly modified version of jQuery.isPlainObject.
 * A plain object is an object whose internal class property is [object Object].
 *
 * @function Phaser.Utils.Object.IsPlainObject
 * @since 3.0.0
 *
 * @param {object} obj - The object to inspect.
 *
 * @return {boolean} `true` if the object is plain, otherwise `false`.
 */
declare var IsPlainObject: any;