Adding JSON example. (#1)

jsonexample/lib/json_serializable/serializable_simple_object.g.dart

@@ -0,0 +1,42 @@
+// Copyright 2018 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'serializable_simple_object.dart';
+
+// **************************************************************************
+// Generator: JsonSerializableGenerator
+// **************************************************************************
+
+SerializableSimpleObject _$SerializableSimpleObjectFromJson(
+        Map<String, dynamic> json) =>
+    new SerializableSimpleObject(
+        aString: json['aString'] as String,
+        anInt: json['anInt'] as int,
+        aDouble: (json['aDouble'] as num)?.toDouble(),
+        aListOfStrings:
+            (json['aListOfStrings'] as List)?.map((e) => e as String)?.toList(),
+        aListOfInts:
+            (json['aListOfInts'] as List)?.map((e) => e as int)?.toList(),
+        aListOfDoubles: (json['aListOfDoubles'] as List)
+            ?.map((e) => (e as num)?.toDouble())
+            ?.toList());
+
+abstract class _$SerializableSimpleObjectSerializerMixin {
+  String get aString;
+  int get anInt;
+  double get aDouble;
+  List<String> get aListOfStrings;
+  List<int> get aListOfInts;
+  List<double> get aListOfDoubles;
+  Map<String, dynamic> toJson() => <String, dynamic>{
+        'aString': aString,
+        'anInt': anInt,
+        'aDouble': aDouble,
+        'aListOfStrings': aListOfStrings,
+        'aListOfInts': aListOfInts,
+        'aListOfDoubles': aListOfDoubles
+      };
+}