@t_start.setter
    def t_start(self, start):
        if start is None:
            raise ValueError('t_start cannot be None')
        self._t_start = start
Report that a config agent is ready for duty.
dataset/ETHPy150Open NeuralEnsemble/python-neo/neo/core/analogsignal.py/BaseAnalogSignal.t_start--crossover with--dataset/ETHPy150Open openstack/networking-cisco/networking_cisco/plugins/cisco/cfg_agent/cfg_agent.py/CiscoDeviceManagementApi.register_for_duty