> 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/2019/01/11.md).

# 11

![](https://385430918-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-M8iFCzaIpXf8zXqpE6I%2F-MTTyjPF8w4rC-dAZlB8%2F-MTTzgohSemgQ7XIL26z%2Fimage.png?alt=media\&token=80a7d4ab-b1e5-475e-84ca-b344403a210b)