    def fetch_bangumi_calendar(self) -> List[WebsiteBangumi]:  # pragma: no cover
        """
        return a list of all bangumi and a list of all subtitle group

        list of bangumi dict, update time should be one of
        ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Unknown']
        """
        raise NotImplementedError
return a list of all bangumi and a list of all subtitle group

list of bangumi dict, update time should be one of
['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Unknown']
bgmi/website/base.py