code: def emit(self, record):
      
      try:
        message = self.format(record)
        log_record = LogRecord(
            record.levelno, record.name, os.path.basename(record.pathname),
            record.lineno, int(record.created * 1000), message,
        )
        self._test_record.add_log_record(log_record)
        self._notify_update()
      except Exception:  # pylint: disable=broad-except
        self.handleError(record)
docs: Save a logging.LogRecord to our test record.
  
      Logs carry useful metadata such as the logger name and level information.
      We capture this in a structured format in the test record to enable
      filtering by client applications.
  
      Args:
        record: A logging.LogRecord to record.