@property<EOL><INDENT>def xmlschema(self):<DEDENT>
if self.XSD_SCHEMA:<EOL><INDENT>return loadSchema(self.XSD_SCHEMA)<EOL><DEDENT>
A parsed XSD schema instance of
        :class:`lxml.etree.XMLSchema`; will be loaded the first time
        it is requested on any instance of this class if XSD_SCHEMA is
        set and xmlchema is None.  If you wish to load and parse the
        schema at class definition time, instead of at class instance
        initialization time, you may want to define your schema in
        your subclass like this::

          XSD_SCHEMA = "http://www.openarchives.org/OAI/2.0/oai_dc.xsd"
          xmlschema = xmlmap.loadSchema(XSD_SCHEMA)