def _add_sensor(self, sensorid):
"""Add sensor node. Return sensor node instance."""
self.gateway.sensors[sensorid] = Sensor(sensorid)
return self.gateway.sensors[sensorid]
def get_sensor(sensor_id, gateway):
"""Add sensor on gateway and return sensor instance."""
gateway.sensors[sensor_id] = Sensor(sensor_id)
return gateway.sensors[sensor_id]