Koha::ItemType - Koha Item type Object class
my $can_be_deleted = Koha::ItemType->can_be_deleted();
Counts up the number of biblioitems and items with itemtype (code) and hands back the combined number of biblioitems and items with the itemtype
    Returns true if it is likely possible to make an article request for
    this item type.
    Optional parameter: categorycode (for patron).