Template:WPBannerMeta/istemplate/doc

This subtemplate decides whether the banner instance is on the main templatepage, that is, whether the banner should display in its 'demo' version with all options demonstrated. It performs two checks


 * 1) Is the pagename the BANNER_NAME, or is the page a subpage of that page?
 * 2) Is the no parameter set?

And then combines them together either with "and" (default) or another logical operator, eg "or"; this can be specified in the first unnamed parameter.