-- | The MQTT configuration for this device registry.
drMqttConfig :: Lens' DeviceRegistry (Maybe MqttConfig)
drMqttConfig
  = lens _drMqttConfig (\ s a -> s{_drMqttConfig = a})
drMqttConfig :: Lens' DeviceRegistry (Maybe MqttConfig)
drMqttConfig
  = lens _drMqttConfig (\ s a -> s{_drMqttConfig = a})
drMqttConfig
  = lens _drMqttConfig (\ s a -> s{_drMqttConfig = a})