How to use the xkcdpass.xkcd_password.XkcdPassArgumentParser function in xkcdpass

def make_password(arg_string=None):
    if arg_string is None:
        arg_string = "-w safe6 -n 4 --min 1 --max=6"
    argv = arg_string.split()
    parser = xkcd_password.XkcdPassArgumentParser(prog="xkcdpass")

    options = parser.parse_args(argv)
    xkcd_password.validate_options(parser, options)

    my_wordlist = xkcd_password.generate_wordlist(
        wordfile=options.wordfile,
        min_length=options.min_length,
        max_length=options.max_length,
        valid_chars=options.valid_chars)

    if options.verbose:
        xkcd_password.verbose_reports(my_wordlist, options)

    return xkcd_password.generate_xkcdpassword(
        my_wordlist,
        interactive=options.interactive,

def main(argv=None):
    """ Mainline code for this program. """

    if argv is None:
        argv = sys.argv

    exit_status = 0

    try:
        program_name = os.path.basename(argv[0])
        parser = XkcdPassArgumentParser(prog=program_name)

        options = parser.parse_args(argv[1:])
        validate_options(parser, options)

        my_wordlist = generate_wordlist(
            wordfile=options.wordfile,
            min_length=options.min_length,
            max_length=options.max_length,
            valid_chars=options.valid_chars)

        if options.interactive:
            initialize_interactive_run(options)
        
        if options.verbose:
            verbose_reports(my_wordlist, options)

def __init__(self, *args, **kwargs):
        super(XkcdPassArgumentParser, self).__init__(*args, **kwargs)

        self._add_arguments()

def __init__(self, *args, **kwargs):
        super(XkcdPassArgumentParser, self).__init__(*args, **kwargs)

        self._add_arguments()

def main(argv=None):
    """ Mainline code for this program. """

    if argv is None:
        argv = sys.argv

    exit_status = 0

    try:
        program_name = os.path.basename(argv[0])
        parser = XkcdPassArgumentParser(prog=program_name)

        options = parser.parse_args(argv[1:])
        validate_options(parser, options)

        my_wordlist = generate_wordlist(
            wordfile=options.wordfile,
            min_length=options.min_length,
            max_length=options.max_length,
            valid_chars=options.valid_chars)

        if options.verbose:
            verbose_reports(my_wordlist, options)

        emit_passwords(my_wordlist, options)

    except SystemExit as exc: