@property
  def check_cmd(self):
    return self._check_cmd
Wait until the callback returns a non empty response or the
dataset/ETHPy150Open ucb-sts/sts/sts/entities/controllers.py/ControllerConfig.check_cmd--crossover with--dataset/ETHPy150Open matrix-org/synapse/synapse/notifier.py/Notifier.wait_for_events