Add part3

part3/phonebook/node_modules/async/internal/getIterator.js

@@ -0,0 +1,11 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+    value: true
+});
+
+exports.default = function (coll) {
+    return coll[Symbol.iterator] && coll[Symbol.iterator]();
+};
+
+module.exports = exports["default"];