def _update_prop(self, bch, obj_uuid, prop_name, new_props):
    if (new_props[prop_name] is None):
        self._cassandra_driver.remove(obj_uuid, columns=[('prop:' + prop_name)], batch=bch)
    else:
        self._cassandra_driver.insert(obj_uuid, {('prop:' + prop_name): json.dumps(new_props[prop_name])}, batch=bch)
    del new_props[prop_name]
def _update_prop(self, bch, obj_uuid, prop_name, new_props):
    if (new_props[prop_name] is None):
        self._cassandra_driver.remove(obj_uuid, columns=[('prop:' + prop_name)], batch=bch)
    else:
        self._cassandra_driver.insert(obj_uuid, {('prop:' + prop_name): json.dumps(new_props[prop_name])}, batch=bch)
    del new_props[prop_name]