Template:Parameter/Documentation

Template:Parameter is used with in the template namespace to identify and categorize templates based on their usage of parameters.

Usage

It accepts one mandatory parameter, one of mandatory, optional, no, or none.

It also accepts one optional string parameter, any arbitrary text.

Return

It's invoked twice above, but for clarity sake...

{{Parameter|mandatory}} add the template to the Templates With Mandatory Pareameters category and returns:

mandatory parameter

optional string parameter