def get_email_subject(self):
        return self._get_email_field('email_subject_tmpl', 'get_email_subject')
GET /users/<id>/memberships/@by-group/<id>.json (group)
dataset/ETHPy150Open Nomadblue/django-nomad-notifier/notifier/models.py/NotificationMixin.get_email_subject--crossover with--dataset/ETHPy150Open typepad/python-typepad-api/tests/test_typepad.py/TestGroup.test_1_GET_users_id_memberships_by_group_id