Service component:

                    controller_uuid = controller.device_id.device_uuid.uuid

                    devices.setdefault(device_type, dict())[controller_uuid] = (controller, controller_drivers)

        LOGGER.debug('[get_devices_from_connection] devices = {:s}'.format(str(devices)))

        plain_devices = {

            device_type : {

                device_uuid : {

                    'grpc_object' : grpc_message_to_json_string(device_grpc),

                    'device_drivers' : list(device_drivers)

                }

                for device_uuid, (device_grpc, device_drivers) in device_dict.items()

            }

            for device_type, device_dict in devices.items()

        }

        LOGGER.debug('[get_device_type_drivers_for_connection] devices = {:s}'.format(str(plain_devices)))

        return devices