code: def main():
      
      parser = ArgumentParser(
          description="Dynamic Bayes Net Executable Model",
          formatter_class=ArgumentDefaultsHelpFormatter,
      )
  
      def add_flag(short_arg: str, long_arg: str, help: str):
          parser.add_argument(
              "-" + short_arg, "--" + long_arg, help=help, action="store_true"
          )
  
      subparsers = parser.add_subparsers()
  
      parser_execute = subparsers.add_parser("execute", help="Model execution")
      parser_execute.set_defaults(func=execute)
  
      # ==========================================================================
      # Model execution options
      # ==========================================================================
  
      parser_execute.add_argument(
          "--input_dressed_cag",
          help="Path to the input dressed cag",
          type=str,
          default="delphi_model.pkl",
      )
  
      parser_execute.add_argument(
          "--steps",
          help="Number of time steps to take",
          type=partial(positive_int, "steps"),
          default=5,
      )
  
      parser_execute.add_argument(
          "--samples",
          help="Number of sequences to sample",
          type=partial(positive_int, "samples"),
          default=100,
      )
  
      parser_execute.add_argument(
          "--output_sequences",
          help="Output file containing sampled sequences",
          type=str,
          default="dbn_sampled_sequences.csv",
      )
  
      parser_execute.add_argument(
          "--input_variables",
          help="Path to the variables of the input dressed cag",
          type=str,
          default="bmi_config.txt",
      )
  
      args = parser.parse_args()
  
      if len(sys.argv) == 1:
          parser.print_help()
  
      else:
          args.func(args)
docs: Run the CLI.