code: def critical(self, event=None, *args, **kw):
          
          if not self._logger.isEnabledFor(logging.CRITICAL):
              return
  
          kw = self._add_base_info(kw)
          kw['level'] = "critical"
          return self._proxy_to_logger('critical', event, *args, **kw)
docs: Process event and call :meth:`logging.Logger.critical` with the result.