code: def queue(users, label, extra_context=None, sender=None):
      
      if extra_context is None:
          extra_context = {}
      if isinstance(users, QuerySet):
          users = [row["pk"] for row in users.values("pk")]
      else:
          users = [user.pk for user in users]
      notices = []
      for user in users:
          notices.append((user, label, extra_context, sender))
      NoticeQueueBatch(pickled_data=base64.b64encode(pickle.dumps(notices))).save()
docs: Queue the notification in NoticeQueueBatch. This allows for large amounts
      of user notifications to be deferred to a seperate process running outside
      the webserver.