def register_url(url, handler, name=None, kwargs=None):
    if name is None and kwargs is None:
        app_config.urls.append((url, handler))
        return

    if name is None:
        app_config.urls.append((url, handler, kwargs))
        return

    app_config.urls.append((url, handler, kwargs, name))
insert url into tornado application handlers group
dataset/ETHPy150Open wecatch/app-turbo/turbo/register.py/register_url