How to use the greynoise.cli.subcommand.setup function in greynoise

def test_save_api_key(self, key_option):
        """Save API key to configuration file."""
        runner = CliRunner()
        api_key = ""
        expected_config = {
            "api_key": api_key,
            "api_server": DEFAULT_CONFIG["api_server"],
            "timeout": DEFAULT_CONFIG["timeout"],
        }
        expected_output = "Configuration saved to {!r}\n".format(CONFIG_FILE)

        with patch("greynoise.cli.subcommand.save_config") as save_config:
            result = runner.invoke(subcommand.setup, [key_option, api_key])
        assert result.exit_code == 0
        assert result.output == expected_output
        save_config.assert_called_with(expected_config)

def test_setup(self, api_key_option):
        """Setup subcommand called."""
        args = parse_arguments(["setup", api_key_option, ""])
        assert args.func == setup

parser.add_argument("-k", "--api-key", help="Key to include in API requests")
    parser.add_argument(
        "-f",
        "--format",
        choices=["json", "xml"],
        default="json",
        help="Output format (%(default)s by default",
    )

    subparsers = parser.add_subparsers(help="Subcommands")

    setup_parser = subparsers.add_parser("setup", help=setup.__doc__.rstrip("."))
    setup_parser.add_argument(
        "-k", "--api-key", required=True, help="Key to include in API requests"
    )
    setup_parser.set_defaults(func=setup)

    noise_parser = subparsers.add_parser("noise", help=noise.__doc__.rstrip("."))
    noise_parser.add_argument(
        "-d",
        "--date",
        type=date_parameter,
        help="Date to use as filter (format: YYYY-MM-DD)",
    )
    noise_parser.set_defaults(func=noise)

    context_parser = subparsers.add_parser("context", help=context.__doc__.rstrip("."))
    context_parser.add_argument(
        "ip_address", type=ip_address_parameter, help="IP address"
    )
    context_parser.set_defaults(func=context)

def parse_arguments(argv):
    """Parse command line arguments."""
    parser = ArgumentParser(description=__doc__)
    parser.set_defaults(func=lambda args: parser.print_help())
    parser.add_argument("-k", "--api-key", help="Key to include in API requests")
    parser.add_argument(
        "-f",
        "--format",
        choices=["json", "xml"],
        default="json",
        help="Output format (%(default)s by default",
    )

    subparsers = parser.add_subparsers(help="Subcommands")

    setup_parser = subparsers.add_parser("setup", help=setup.__doc__.rstrip("."))
    setup_parser.add_argument(
        "-k", "--api-key", required=True, help="Key to include in API requests"
    )
    setup_parser.set_defaults(func=setup)

    noise_parser = subparsers.add_parser("noise", help=noise.__doc__.rstrip("."))
    noise_parser.add_argument(
        "-d",
        "--date",
        type=date_parameter,
        help="Date to use as filter (format: YYYY-MM-DD)",
    )
    noise_parser.set_defaults(func=noise)

    context_parser = subparsers.add_parser("context", help=context.__doc__.rstrip("."))
    context_parser.add_argument(