human
I wrote the below code

    def list(params):
        '\n                                List    all    mod    configuration\n                                '
        from colorama import init, Fore
        from tabulate import tabulate
        init()
        mod_config_path = get_mod_config_path(generate=True)
        mod_config = load_mod_config(mod_config_path, loader=yaml.Loader)
        table = []
        for (mod_name, mod) in six.iteritems(mod_config['mod']):
            table.append([(Fore.RESET + mod_name), (((Fore.GREEN + 'enabled') + Fore.RESET) if mod['enabled'] else ((Fore.RED + 'disabled') + Fore.RESET))])
        headers = [(Fore.CYAN + 'name'), ((Fore.CYAN + 'status') + Fore.RESET)]
        six.print_(tabulate(table, headers=headers, tablefmt='psql'))
        six.print_((Fore.LIGHTYELLOW_EX + 'You    can    use    `rqalpha    mod    list/install/uninstall/enable/disable`    to    manage    your    mods'))
    def install(params):
        '\n                                Install    third-party    Mod\n                                '
        from pip import main as pip_main
        from pip.commands.install import InstallCommand
        params = [param for param in params]
        (options, mod_list) = InstallCommand().parse_args(params)
        params = (['install'] + params)
        for mod_name in mod_list:
            mod_name_index = params.index(mod_name)
            if mod_name.startswith('rqalpha_mod_sys_'):
                six.print_('System    Mod    can    not    be    installed    or    uninstalled')
                return
            if ('rqalpha_mod_' in mod_name):
                lib_name = mod_name
            else:
                lib_name = ('rqalpha_mod_' + mod_name)
            params[mod_name_index] = lib_name
        installed_result = pip_main(params)
        mod_config_path = get_mod_config_path(generate=True)
        mod_config = load_mod_config(mod_config_path, loader=yaml.Loader)
        if (installed_result == 0):
            if (len(mod_list) == 0):
                '\n                 ...

What's a good function header?

Here's a good function header?
assistant
#Here's a good function header.

@cli.command(context_settings=dict(ignore_unknown_options=True))
@click.help_option('-h', '--help')
@click.argument('cmd', nargs=1, type=click.Choice(['list', 'enable', 'disable', 'install', 'uninstall']))
@click.argument('params', nargs=(-1))
def mod(cmd, params):