public abstract class DBusServiceProxy : Object {
    protected const string DBUS_PATH = "/net/buzzert/kordophonecd/daemon";
    protected const string DBUS_NAME = "net.buzzert.kordophonecd";

    protected DBusServiceProxy() {
    }
} 

protected errordomain DBusServiceProxyError {
    NOT_CONNECTED, 
    PASSWORD_STORAGE;
}