> For the complete documentation index, see [llms.txt](https://se4ma.gitbook.io/book/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://se4ma.gitbook.io/book/readme.md).

# Introduction

![](https://22926349-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Falpu33fQFigNZbz44g4b%2Fuploads%2Fgit-blob-b977d88187483caf7470fc793dc631fd90481cf4%2Fportada.png?alt=media)