def _handler(self,msg):
        self._data[msg.key] = (msg.value, msg.currency)
Update an object with PATCH method.
dataset/ETHPy150Open sjev/trading-with-python/lib/interactiveBrokers/handlers.py/Account._handler--crossover with--dataset/ETHPy150Open openstack/python-solumclient/solumclient/openstack/common/apiclient/base.py/BaseManager._patch