Template:Not in template

This is the documentation for the template Template:Not in template

*Template:Not in template/Doc:*
The template `{{Not in template\|...}}` includes the body (argument 1) only if it's being executed not in a template. This is useful when e.g. you want to create a subst: template that will assign a category. E.g. see Template:Based On Template.

To see how this template is implemented, edit this page and examine the portion between <includeonly> and </includeonly>.