def configuration_hash(self):
        return self._hash
Blocks the thread until the configuration is received
dataset/ETHPy150Open ClusterHQ/flocker/flocker/control/_persistence.py/ConfigurationPersistenceService.configuration_hash--crossover with--dataset/ETHPy150Open UniversalDevicesInc/Polyglot/polyglot/nodeserver_api.py/PolyglotConnector.wait_for_config