> For the complete documentation index, see [llms.txt](https://www.oulan.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://www.oulan.com/2017/01/24.md).

# 24

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![](https://385430918-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-M8iFCzaIpXf8zXqpE6I%2F-MSkNBqMI_8SEWklI9Xp%2F-MSkNlD3327kugzNUnbw%2Fimage.png?alt=media\&token=2932b2b4-6010-44b5-8535-813b1ef11da9)