请问插件怎么修改component中的节点名

function onRenameNode(arg0: FairyEditor.FPackage) {

    let packageRoot = App.activeDoc.packageItem.owner;

    for (var i = 0; i < packageRoot.items.Count; ++i) {

        var packageItem = packageRoot.items.get_Item(i);

        if (packageItem.type == FairyEditor.FPackageItemType.COMPONENT){

            var fObj = FairyEditor.FObjectFactory.CreateObject(packageItem) as FairyEditor.FComponent;

            // console.log(fObj.objectType);

            fObj.children.ForEach((item) => {

                // console.log(item.name);

                item.name = item.name.toLowerCase();

            })

        }

            

    }

}