code: def main():
      args = parse_args(sys.argv[1:])
      if hasattr(args, "func"):
          func = args.func
          delattr(args, "func")
          func(vars(args))
  
file_path: sklearn-porter/sklearn_porter/cli/__main__.py
imports: import sys
  from os import environ
  from argparse import ArgumentParser, RawTextHelpFormatter
  from textwrap import dedent
  from sklearn_porter import __version__
  from sklearn_porter.cli.command import port, save, show
  from sklearn_porter.cli.common import arg_help, arg_version
label_desc: Use image node_id 2 for calling a global function with example usage: main() without return types