https://blog.wongcw.com/2020/10/28/%e6%b0%a3%e5%8b%a2%e5%8d%81%e8%b6%b3%ef%bc%9a%e7%b6%b2%e5%8f%8b%e5%8d%87%e7%b4%9a%e7%89%88super-scope%e5%8f%af%e5%9c%a8%e6%b6%b2%e6%99%b6%e9%9b%bb%e8%a6%96%e4%b8%8a%e4%bd%bf%e7%94%a8/