How to use the py3status.docstrings.update_docstrings function in py3status

msg = "missing positional or optional arguments"
            sps["list"].error(msg)
        docstrings.show_modules(config, modules)

    # docstring formatting and checking
    elif config["command"] == "docstring":
        if config["check"]:
            docstrings.check_docstrings(False, config, modules)
        elif config["diff"]:
            docstrings.check_docstrings(True, config, None)
        elif config["update"]:
            if not modules:
                msg = "missing positional arguments or `modules`"
                sps["docstring"].error(msg)
            if "modules" in modules:
                docstrings.update_docstrings()
            else:
                docstrings.update_readme_for_modules(modules)
        else:
            msg = "missing positional or optional arguments"
            sps["docstring"].error(msg)