def set_group_exists(self, group_id: str, exists: bool) -> None:
self.redis.set(RedisKeys.group_exists(group_id), '1' if exists else '0')
def get_group_exists(self, group_id: str) -> Optional[bool]:
value = self.redis.get(RedisKeys.group_exists(group_id))
if value is None:
return None
return str(value, 'utf-8') == '1'