    def search_by_tag(self, tag: str, subtitle: Optional[str] = None, count: Optional[int] = None) -> List[Episode]:
        """

        :param tag: search tag
        :param subtitle: search subtitle group name
        :param count: how many page to fetch from website
        :return: list of episode search result
        """
        raise NotImplementedError
:param tag: search tag
:param subtitle: search subtitle group name
:param count: how many page to fetch from website
:return: list of episode search result
bgmi/website/base.py