code: def parse_args():
      
      parser = argparse.ArgumentParser(
          formatter_class=argparse.ArgumentDefaultsHelpFormatter,
          description='Diagnose script for checking the current system.')
      choices = ['python', 'pip', 'mxnet', 'os', 'hardware', 'network']
      for choice in choices:
          parser.add_argument('--' + choice, default=1, type=int,
                              help='Diagnose {}.'.format(choice))
      parser.add_argument('--region', default='', type=str,
                          help="Additional sites in which region(s) to test. \
                          Specify 'cn' for example to test mirror sites in China.")
      parser.add_argument('--timeout', default=10, type=int,
                          help="Connection test timeout threshold, 0 to disable.")
      args = parser.parse_args()
      return args
docs: Parse arguments.