adding packages

deprecated/easy_google_maps/example/lib/api_key.dart

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+const kGoogleMapsApiKey = 'YOUR_API_KEY_HERE';

deprecated/easy_google_maps/example/lib/main.dart

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+import 'package:easy_google_maps_example/api_key.dart';
+import 'package:flutter/material.dart';
+import 'package:easy_google_maps/easy_google_maps.dart';
+
+void main() => runApp(MyApp());
+
+class MyApp extends StatelessWidget {
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(
+      home: Scaffold(
+        appBar: AppBar(
+          title: const Text('Easy Google Maps'),
+        ),
+        body: EasyGoogleMaps(
+          apiKey: kGoogleMapsApiKey,
+          address: 'Infinite Loop, Cupertino, CA 95014',
+          title: 'Apple Campus',
+        ),
+      ),
+    );
+  }
+}