> 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/2019/04/06.md).

# 06

<figure><img src="https://385430918-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-M8iFCzaIpXf8zXqpE6I%2Fuploads%2F5WFJo8H31k1kXsqwIrnF%2Fimage.png?alt=media&amp;token=600060ee-10a4-44be-9ad5-3d6f1b7cf852" alt=""><figcaption></figcaption></figure>