Returns the location object, if any (see FS::cust_location).
If this package is associated with a location, returns the locaiton (see FS::cust_location), otherwise returns the customer (see FS::cust_main).
Returns the label of the location object (see FS::cust_location).
Returns a hash of values for the location, either from the location object, the cust_main shipping address, or the cust_main address, whichever is present first.
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