# File provisioningapi.rb, line 541
                def retrieve_all_owners(group_id)
                        xml_response = request(:all_owners_retrieve, group_id+'/owner', @headers)
                        list_feed = Feed.new(xml_response.elements["feed"], OwnerEntry)
                        list_feed = add_next_feeds(list_feed, xml_response, OwnerEntry)
                end