code: def validateRoot(self, doc):
          
          if doc is None: doc__o = None
          else: doc__o = doc._o
          ret = libxml2mod.xmlValidateRoot(self._o, doc__o)
          return ret
docs: Try to validate a the root element basically it does the
            following check as described by the XML-1.0 recommendation:
            - [ VC: Root Element Type ] it doesn't try to recurse or
             apply other check to the element