def addRequest(self):
        with open(self.dataFile,'a') as f:
            f.write(dt.datetime.now().strftime(self._timeFormat)+'\n')
Create an ``EBSBlockDeviceAPI`` for use by tests.
dataset/ETHPy150Open cmorgan/trading-with-python/lib/interactivebrokers.py/TimeKeeper.addRequest--crossover with--dataset/ETHPy150Open ClusterHQ/flocker/flocker/node/agents/functional/test_ebs.py/ebsblockdeviceapi_for_test