# Teal definitions and sources This directory contains files written in the [Teal](https://github.com/teal-language/tl) language, a typed dialect of Lua. There are two kinds of files, `.tl` Teal source code and `.d.tl` type definitions files for modules written in Lua. The later allows writing type-aware Teal using regular Lua or C code. ## Setup The Teal compiler can be installed from LuaRocks using: ```bash luarocks install tl ``` ## Checking types ```bash tl check teal-src/prosody/util/example.tl ``` Some editors and IDEs also have support, see [text editor support](https://github.com/teal-language/tl#text-editor-support) ## Files of note `module.d.tl` : Describes the module environment.