The shipping carrier. At the current time, the United States Postal Service (USPS) is the only supported carrier.
The shipping service name. For example, for the USPS, these include 'Priority', 'Express', 'Media Mail' and others.
The price in US dollars to ship using the associated carrier and service.
ID of the shipment that this Rate object relates to
serialized form of Rate objects
returns a new Rate object that is a deep-copy of this Rate object
Mark Allen <email@example.com>, Hunter McMillen <firstname.lastname@example.org>
This software is copyright (c) 2012 by Mark Allen.
This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.