def put_attribute(self, attr_name, attr_value):
        self._updates[attr_name] = ("PUT", attr_value)
Helper method for calling a method across all extension drivers.
dataset/ETHPy150Open yyuu/botornado/boto/dynamodb/item.py/Item.put_attribute--crossover with--dataset/ETHPy150Open openstack/group-based-policy/gbpservice/neutron/services/grouppolicy/extension_manager.py/ExtensionManager._call_on_ext_drivers