L<FS::part_pkg_msgcat> - Package definition localization class
+L<FS::part_pkg_usageprice> - Package definition usage pricing add-on class
+
+L<FS::cust_pkg_usageprice> - Customer package usage pricing add-on class
+
L<FS::part_pkg_currency> - Package definition local currency prices
L<FS::currency_exchange> - Currency exchange rates