Changes to Update a return

added the new required request property data/relationships/stock_location/data

request property data/type was restricted to a list of enum values

removed the request property data/relationships/stock_location/id

removed the request property data/relationships/stock_location/type

added the new optional request property data/attributes/_add_tags

added the new optional request property data/attributes/_refund

added the new optional request property data/attributes/_refund_amount_cents

added the new optional request property data/attributes/_remove_tags

added the new optional request property data/relationships/reference_capture

added the new optional request property data/relationships/tags

the request property data/attributes/metadata became nullable

the request property data/attributes/reference became nullable

the request property data/attributes/reference_origin became nullable

the type request property default value returns was removed

added the new returns enum value to the request property data/type

added the media type application/vnd.api+json for the response with the status 200