def sleep(self):
        backoff = self.get_backoff_time()
        if backoff <= 0:
            return
        time.sleep(backoff)
Returns all messages in the desired queue
dataset/ETHPy150Open BergWerkGIS/QGIS-CKAN-Browser/CKAN-Browser/request/packages/urllib3/util/retry.py/Retry.sleep--crossover with--dataset/ETHPy150Open zulip/zulip/zerver/lib/queue.py/SimpleQueueClient.drain_queue