code: def init_parser():
      
      parser = argparse.ArgumentParser(
          description="Automated development environment initialization")
  
      parser.add_argument('--version', action='version',
          version='%(prog)s ' + __version__)
  
      subparsers = parser.add_subparsers(title="commands")
  
      # List command
      parser_list = subparsers.add_parser("list",
          help="list all the available environment types")
  
      # New command
      parser_new = subparsers.add_parser("new",
          help="define a new environment type")
      parser_new.add_argument("environment", help="name for the environment")
  
      # Remove command
      parser_remove = subparsers.add_parser("remove",
          help="remove an environment type from the configuration file")
      parser_remove.add_argument("environment", help="name of the environment")
  
      # Show command
      parser_show = subparsers.add_parser("show",
          help="show the commands performed for a specific environment")
      parser_show.add_argument("environment", help="name of the environment")
  
      # Start command
      parser_start = subparsers.add_parser("start",
          help="start a new environment")
      parser_start.add_argument("environment", help="name of the environment")
      parser_start.add_argument("path", nargs="?",
          help="path in which to initialize the environment")
  
      return parser
docs: Initialize the arguments parser.