# lib/Art.pm
    package Art {

      use Zydeco;

      class Place {
        has space;
        include Place::Behavior::Exhibit;
        include Wildlife::Behavior::Buyer;

        class Gallery with Exhibit, Buyer {
          has artwork (  type => ArrayRef );
          has artist (  type => ArrayRef );
          has event ( type => ArrayRef );
          has owner;
          has public;
        }
      }
    }