Usage edit

This template will return a translatable page in the user's interface language if such a page exists; else, it'll return the "/en" page.

If "/en" page also doesn't exist, this will return the source page of the target template.

It is the same as using {{TNT|Foo|uselang={{int:lang}}}} and this template was created to avoid the template looping issue when {{TNT}} is used on TNT again.