code: function (storeOrEditor, fn) {
      debug('Processing entries in in-memory store.');
      var store = (storeOrEditor && storeOrEditor.store ? storeOrEditor.store : storeOrEditor);
      store.each(function (file) {
        fn.call(this, file, store);
      });
    }
docs: Calls fn(entry) for each entry in the store.
  
  @param {!Store|!EditionInterface} storeOrEditor
  @param {Function(String, !Store)} fn called with each entry and the store