Is there a way to call Collect Files with Extendscript?

Not sure where their file went, but here is a function I rewrote for my own workflow. Hopefully this works for yours as well.

function collect_files(target_path){

    // extract project name, removing the .ae
    var project_name = app.project.file.name.slice(0,-4);

    var project_dir = new Folder(target_path.toString() + "/" + project_name + "_COLLECT");
    var footage_dir = new Folder(project_dir.absoluteURI + "\\(Footage)\\");


    for (i = 1; i <= app.project.numItems; i++){
        item = app.project.item(i)

        // Check these before continuing.
        if (item instanceof FootageItem == false){continue};
        if (item.file == null){continue};
        if (item.footageMissing){continue};

        // Get item's extension. Will be used to differentiate between image sequences and other media.
        var item_extension = item.file.name.substring(item.file.name.lastIndexOf(".") + 1).toLowerCase();
     
        // Make the item's directory if it doesn't exist
        var item_dir = new Folder(footage_dir.absoluteURI + "\\" + item.parentFolder.name);
        if (!item_dir.exists){item_dir.create()};

        // Create target dir and target file variables
        var target_dir = new Folder(footage_dir.absoluteURI + "\\" + item.parentFolder.name);
        var target_file = new File(target_dir.absoluteURI + "\\" + item.file.name);

        // Break if target file already exists
        if (target_file.exists){continue}

        // If the target is a still.
        if (item.mainSource.isStill){
            item.file.copy(target_dir.absoluteURI + "\\" + item.file.name);
            item.replace(target_file);
            continue
        }

        // list of still image extensions
        var still_extensions = ['jpg', 'jpeg', 'png', 'gif', 'bmp', 'svg', 'webp', 'ico', 'tif', 'tiff', 'eps', 'raw', 'ai', 'ps', 'indd', 'pdf', 'xcf', 'sketch', 'xd', 'cin', 'dpx','exr','pxr','rla','hdr','tga'];
        
        // If it's a video file (doesn't contain an image extension)
        if (still_extensions.indexOf(item_extension) == -1){
            item.file.copy(target_dir.absoluteURI + "\\" + item.file.name);
            item.replace(target_file);
            continue
        }

        // If it's a image sequence.
        if (still_extensions.indexOf(item_extension) != -1){
            var source_folder = item.file.parent;
            var frames = source_folder.getFiles();

            for (f = 0; f<frames.length; f++){
                frame = frames[f]
                frame.copy(target_dir.toString() + "\\" + frame.name)
            }

            try {
                item.replaceWithSequence(target_file, true)
            } catch (e){
                alert(item.name)
            }

 
        }
    }

    app.project.save(new File(project_dir.absoluteURI + "\\" + app.project.file.name));
}