Go into a folder in my iCloud Drive and download all files in the folder labeled 'Samples' and any subfolders within that folder.

ript
function downloadFiles(folder) {
  var files = folder.getFiles();
  for (var i = 0; i < files.length; i++) {
    var file = files[i];
    var fileName = file.getName();
    var filePath = file.getPath();
    var fileExt = fileName.split('.').pop();
    var fileSize = file