def _processRelayDropCell(self, cell, origin):
        msg = "Circuit {} received a RelayDropCell.".format(self.circuit_id)
        logging.debug(msg)
Returns a boolean on whether the upstream tasks are in a SUCCESS state
dataset/ETHPy150Open nskinkel/oppy/oppy/circuit/circuit.py/Circuit._processRelayDropCell--crossover with--dataset/ETHPy150Open airbnb/airflow/airflow/models.py/TaskInstance.are_dependencies_met