code: def validateElement(self, doc, elem):
          
          if doc is None: doc__o = None
          else: doc__o = doc._o
          if elem is None: elem__o = None
          else: elem__o = elem._o
          ret = libxml2mod.xmlValidateElement(self._o, doc__o, elem__o)
          return ret
docs: Try to validate the subtree under an element