} else if (vn1 instanceof VisualSyncComponent) {    //vn1
                    if (vn2 instanceof VisualFunctionComponent) {
                        writeJsonOutFunction(vnet, (VisualFunctionComponent) vn2);
                    } else if (vn2 instanceof VisualQueueComponent) {
                        writeJsonOutQueue(vnet, (VisualQueueComponent) vn2);