+ def to_xml
+ doc = OSM::API.new.get_xml_doc
+ doc.root << to_xml_node()
+ return doc
+ end
+
+ def to_xml_node
+ el1 = XML::Node.new 'user'
+ el1['display_name'] = self.display_name.to_s
+ el1['account_created'] = self.creation_time.xmlschema
+ return el1
+ end