backup. before shop update

lib/models/image_url.dart

@@ -0,0 +1,20 @@
+import 'dart:convert';
+
+class ImageUrl {
+  int id;
+  String imageUrl;
+
+  ImageUrl.fromJson(Map<String, dynamic> json)
+    : id = json['id'],
+      imageUrl = json['image_url'];
+
+  Map<String, dynamic> toJson() => {
+    'id': id,
+    'image_url': imageUrl
+  };
+
+  @override
+  String toString() {
+    return json.encode(this);
+  }
+}