Krang::ElementClass::Cover - cover element base class
package my::Cover; use Krang::ClassLoader base => 'ElementClass::Cover';
This is now a deprecated class: Previous to version 3 of Krang, types that subclassed Cover always ignored their slug value; now slugs are available and optional for all story types.
As a result, the only remaining behavior is a slug_use()
value of 'discourage': When a new Cover-based story is created in the CGI,
it will by default have no slug, but the user can override this.
All the normal Krang::ElementClass attributes are available.