module org-open-road-m-device {
    namespace "http://org/openroadm/device";
    prefix org-open-road-m-device;

    leaf uri {
        type string;
    }

    grouping device-common {
        leaf node-id {
            type union {
                type leafref {
                    path "/uri";
                }
                type string;
            }
            description
                "Globally unique identifier for a device.";
            config true;
            default "open-road-m";
        }
    }

    list node {
        config false;
        uses device-common;
    }
}