def remove(self, id):
        raise NotImplementedError()
Returns a reference for the datastore. Validates where 
dataset/ETHPy150Open slimta/python-slimta/slimta/queue/__init__.py/QueueStorage.remove--crossover with--dataset/ETHPy150Open AppScale/appscale/AppDB/appscale_datastore_batch.py/DatastoreFactory.getDatastore