Util function library
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.cn-greasyfork.org/scripts/405927/1549485/UtilLibrary.js
!!! NOT MEANT FOR PUBLIC USE !!!
Feel free to use the library, if you find it useful, but the library is not meant for public use.
I would recommend copying the code into your own library, rather than using this library as-is.
If you do decide to use the library, be ready to expect:
