> For the complete documentation index, see [llms.txt](https://docs.otland.net/ots-guide/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.otland.net/ots-guide/tfs-documentation/metatables.md).

# Metatables

TFS uses lua as the scripting language. Lua contains a unique data type known as a "metatable". These metatables are lua's representation of Object Orientated Programming. Here we can find all the methods for the predefined "Objects" sent to lua.