def get_operational_state(self, taskable_resource_id):  # from Device
     retval = IonObject(OT.ComputedStringValue)
     retval.value = ""
     retval.status = ComputedValueAvailability.NOTAVAILABLE
     return retval
 def get_operational_state(self, taskable_resource_id):  # from Device
     retval = IonObject(OT.ComputedStringValue)
     retval.value = ''
     retval.status = ComputedValueAvailability.NOTAVAILABLE
     return retval