def mark_activities(self, activity_ids, seen=True, read=False):
        unseen_ids = activity_ids if seen else []
        unread_ids = activity_ids if read else []
        self.update_markers(unseen_ids=unseen_ids,
                            unread_ids=unread_ids,
                            operation='remove')
Marks all of the given aggregated activities as seen or read or both.
dataset/ETHPy150Open tschellenbach/Stream-Framework/stream_framework/feeds/notification_feed/base.py/BaseNotificationFeed.mark_activities