def _ParseInformationalOptions(self, options):
    """Parses the informational options.

    Args:
      options (argparse.Namespace): command line arguments.
    """
    self._debug_mode = getattr(options, 'debug', False)
    self._quiet_mode = getattr(options, 'quiet', False)

    if self._debug_mode and self._quiet_mode:
      logger.warning(
          'Cannot use debug and quiet mode at the same time, defaulting to '
          'debug output.')
Parses the informational options.

    Args:
      options (argparse.Namespace): command line arguments.