def get_historical_spreads(self, **params):
        endpoint = 'labs/v1/spreads'
        return self.request(endpoint, params=params)
If L{LengthEnforcingConsumer.write} calls the producer's
dataset/ETHPy150Open jamesmawm/Mastering-Python-for-Finance-source-codes/B03898_08_codes/oandapy.py/EndpointsMixin.get_historical_spreads--crossover with--dataset/ETHPy150Open kuri65536/python-for-android/python-modules/twisted/twisted/web/test/test_newclient.py/LengthEnforcingConsumerTests.test_stopProducingRaises