def _val_is_null(self, val):
        return val is None
Transfer item data from source item to target item
dataset/ETHPy150Open datastax/python-driver/cassandra/cqlengine/columns.py/Column._val_is_null--crossover with--dataset/ETHPy150Open Esri/ops-server-config/Publish/Portal/PublishHostedServices.py/transfer_item_data