def METHOD_NAME(get, post, admin, notification_template, inventory_source):
    url = reverse('api:inventory_source_notification_templates_started_list', kwargs={'pk': inventory_source.pk})
    response = post(url, dict(id=notification_template.id, associate=True), admin)
    assert response.status_code == 204
    response = get(url, admin)
    assert response.status_code == 200
    assert len(response.data['results']) == 1