Add part3

part3/phonebook/node_modules/yargs/index.mjs

@@ -0,0 +1,8 @@
+'use strict';
+
+// Bootstraps yargs for ESM:
+import esmPlatformShim from './lib/platform-shims/esm.mjs';
+import {YargsFactory} from './build/lib/yargs-factory.js';
+
+const Yargs = YargsFactory(esmPlatformShim);
+export default Yargs;