code: def main():
      
      parser = argparse.ArgumentParser(
          description='Start an instance of the Cheroot WSGI/HTTP server.',
      )
      for arg, spec in _arg_spec.items():
          parser.add_argument(arg, **spec)
      raw_args = parser.parse_args()
  
      # ensure cwd in sys.path
      '' in sys.path or sys.path.insert(0, '')
  
      # create a server based on the arguments provided
      raw_args._wsgi_app.server(raw_args).safe_start()
docs: Create a new Cheroot instance with arguments from the command line.