Photoshop | Creating an Action with a closed Group

/*
Expand / collapse a group via JavaScript?
https://community.adobe.com/t5/photoshop-ecosystem/expand-collapse-a-group-via-javascript/m-p/7286298
By Vova_p, 16th February 2016

Modified by Stephen Marsh, 29th July 2021
https://gist.github.com/MarshySwamp/a39e3e1efee41174b3b92ee68c40fcd8
*/

#target photoshop

if (app.documents.length > 0) {

    if (app.activeDocument.activeLayer.typename === "LayerSet" && app.activeDocument.activeLayer.layers.length > 0) {
        collapseSelectedGroup();
    } else {
        //alert("This layer type is NOT a layer set/group")
    }

    function collapseSelectedGroup() {
        // Collapse selected layer group/set
        // remember name of group
        var groupname = app.activeDocument.activeLayer.name;
        // This part from  Script Listener - ungroup group
        var idungroupLayersEvent = stringIDToTypeID("ungroupLayersEvent");
        var desc14 = new ActionDescriptor();
        var idnull = charIDToTypeID("null");
        var ref13 = new ActionReference();
        var idLyr = charIDToTypeID("Lyr ");
        var idOrdn = charIDToTypeID("Ordn");
        var idTrgt = charIDToTypeID("Trgt");
        ref13.putEnumerated(idLyr, idOrdn, idTrgt);
        desc14.putReference(idnull, ref13);
        executeAction(idungroupLayersEvent, desc14, DialogModes.NO);
        // This part from  Script Listener - group selected layers
        var idMk = charIDToTypeID("Mk  ");
        var desc15 = new ActionDescriptor();
        var idnull = charIDToTypeID("null");
        var ref14 = new ActionReference();
        var idlayerSection = stringIDToTypeID("layerSection");
        ref14.putClass(idlayerSection);
        desc15.putReference(idnull, ref14);
        var idFrom = charIDToTypeID("From");
        var ref15 = new ActionReference();
        var idLyr = charIDToTypeID("Lyr ");
        var idOrdn = charIDToTypeID("Ordn");
        var idTrgt = charIDToTypeID("Trgt");
        ref15.putEnumerated(idLyr, idOrdn, idTrgt);
        desc15.putReference(idFrom, ref15);
        executeAction(idMk, desc15, DialogModes.NO);
        // Recall group name
        app.activeDocument.activeLayer.name = groupname;
    }
} else {
    alert('A document must be open to use this script!');
}