Template:Stub is used to identify and categorize templates that are meant to be transcluded into other templates, rather than viewed directly.
Usage
It accepts one optional string parameter, a page name.
Return
If the optional parameter is excluded, e.g. {{Stub}}, returns:
Stub
This page is a Stub, meant to be transcluded into another page rather than viewed directly.
If the optional parameter is included, e.g. {{Stub|Template:Stub}}, returns:
Stub
This page is a Stub, meant to be transcluded into Template:Stub rather than viewed directly.