code: def validateOneElement(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.xmlValidateOneElement(self._o, doc__o, elem__o)
          return ret
docs: Try to validate a single element and it's attributes,
            basically it does the following checks as described by the
            XML-1.0 recommendation: - [ VC: Element Valid ] - [ VC:
            Required Attribute ] Then call xmlValidateOneAttribute()
            for each attribute present.  The ID/IDREF checkings are
             done separately