def METHOD_NAME(admin_client, future_event):
    to_be_frozen = Event.objects.values_list("pk", flat=True)
    data = {"action": "freeze_action", "_selected_action": to_be_frozen}
    change_url = reverse("admin:core_event_changelist")
    response = admin_client.post(change_url, data, follow=True)
    assert response.status_code == 200
    assert Event.objects.filter(is_frozen=True).count() == 1
    assert Event.objects.filter(is_on_homepage=False).count() == 1