> 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/2017/04/02.md).

# 02

![](https://385430918-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-M8iFCzaIpXf8zXqpE6I%2F-MidMVdTIMB_0Mju8lj2%2F-MidMcJpvE2hgyl1cFmk%2Fimage.png?alt=media\&token=f72fde7a-a8f6-4da1-9feb-12d67805a4aa)