def METHOD_NAME(self) -> None:
    hamlet = self.example_user("hamlet")
    cordelia = self.example_user("cordelia")
    othello = self.example_user("othello")
    iago = self.example_user("iago")
    message_ids = [
        self.send_huddle_message(hamlet, [cordelia, othello], "test"),
        self.send_huddle_message(cordelia, [hamlet, othello, iago], "test"),
    ]
    messages = Message.objects.filter(id__in=message_ids).order_by("id")
    first_huddle_recipient = messages[0].recipient
    first_huddle_user_ids = set(get_huddle_user_ids(first_huddle_recipient))
    second_huddle_recipient = messages[1].recipient
    second_huddle_user_ids = set(get_huddle_user_ids(second_huddle_recipient))
    huddle_user_ids = bulk_get_huddle_user_ids(
        [first_huddle_recipient.id, second_huddle_recipient.id]
    )
    self.assertEqual(huddle_user_ids[first_huddle_recipient.id], first_huddle_user_ids)
    self.assertEqual(huddle_user_ids[second_huddle_recipient.id], second_huddle_user_ids)