=item cust_location_or_main
If this package is associated with a location, returns the locaiton (see
L<FS::cust_location>), otherwise returns the customer (see L<FS::cust_main>).
=item cust_location_or_main
If this package is associated with a location, returns the locaiton (see
L<FS::cust_location>), otherwise returns the customer (see L<FS::cust_main>).