def non_deleted(self):

        return (self.added or []) +\
            (self.unchanged or [])
Convert rogue and mysterious data types.
dataset/ETHPy150Open RoseOu/flasky/venv/lib/python2.7/site-packages/sqlalchemy/orm/attributes.py/History.non_deleted--crossover with--dataset/ETHPy150Open aparo/django-elasticsearch/django_elasticsearch/serializer.py/Encoder.default