message: keep listFilesLoop private
diff: @@ -462,6 +462,7 @@ export function deleteFile(path: string) {
  * @param {function} callback - the callback to invoke on each file. If it returns a falsey
  * value, then the loop stops. If it returns a truthy value, the loop continues.
  * @returns {Promise} that resolves to the number of files listed.
  + * @private
  */
  function listFilesLoop(hubConfig: GaiaHubConfig,
  page: string | null,
  