> For the complete documentation index, see [llms.txt](https://thinking.simonaking.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://thinking.simonaking.com/archives/2020/11/19.md).

# 19

1. ![image-20201122151223459](/files/-MPZDbk-VqmBZOrsnIvK)
2. ![image-20201122151229577](/files/-MPZDbk2YES7b1GJ4fM7)