How to use the nvchecker.lib.nicelogger.enable_pretty_logging function in nvchecker

def process_common_arguments(args):
  '''return True if should stop'''
  processors = [
    slogconf.exc_info,
    slogconf.filter_exc,
  ]
  logger_factory = None

  if args.logger in ['pretty', 'both']:
    slogconf.fix_logging()
    nicelogger.enable_pretty_logging(
      getattr(logging, args.logging.upper()))
    processors.append(slogconf.stdlib_renderer)
    if args.logger == 'pretty':
      logger_factory=structlog.PrintLoggerFactory(
        file=open(os.devnull, 'w'),
      )
      processors.append(slogconf.null_renderer)
  if args.logger in ['json', 'both']:
    processors.extend([
      structlog.processors.format_exc_info,
      slogconf.json_renderer,
    ])

  if logger_factory is None:
    logfile = args.json_log_fd or sys.stdout
    logger_factory = structlog.PrintLoggerFactory(file=logfile)