def saveable(self):
        for k, v in sorted(self.items()):
            if k not in DONT_SAVE:
                yield k, v
MetaData object stored in odm extension contains aggregated data
dataset/ETHPy150Open ohmu/poni/poni/core.py/Item.saveable--crossover with--dataset/ETHPy150Open quantmind/lux/lux/extensions/odm/commands/alembic.py/Command.get_metadata