This template is used to show that templates have been converted to Lua. It is placed at the top of the template's /doc page. It automatically adds the template to Category:Lua-based templates, or to one of its subcategories.
This template adds pages to Category:Lua-based templates if the page is in the template namespace, and it is not on any of the subpages /doc, /sandbox, /sandbox2 or /testcases. You can specify a different category with the |category= parameter, e.g. |category=Lua String-based templates.