This script is intended to work with @require only. Exposes an instance of the Notifications class of this script to window.UserScript.Notifications
此脚本不应直接安装。它是供其他脚本使用的外部库，要使用该库请加入元指令 // @require https://update.greasyforks.org/scripts/438798/1019652/UserScript%20Notification%20Framework.js
Not intended for installation, only used with @require
Exposes an instance of the Notifications class of this script to window.UserScript.Notifications
Example usage: window.UserScript.Notifications.notify('This is a notification', 'You got notified!', 'https://some-icon.png');
