code: def RelaxNGValidateCtxt(self, ctxt, options):
          
          if ctxt is None: ctxt__o = None
          else: ctxt__o = ctxt._o
          ret = libxml2mod.xmlTextReaderRelaxNGValidateCtxt(self._o, ctxt__o, options)
          return ret
docs: Use RelaxNG schema context to validate the document as it
            is processed. Activation is only possible before the first
            Read(). If @ctxt is None, then RelaxNG schema validation is
             deactivated.