backup. before shop update

lib/models/category.dart

@@ -0,0 +1,21 @@
+
+import 'dart:convert';
+
+class Category {
+  int id;
+  String name;
+
+  Category.fromJson(Map<String, dynamic> json)
+    : id = json['id'],
+      name = json['name'];
+
+  Map<String, dynamic> toJson() => {
+    'id': id,
+    'name': name,
+  };
+
+  @override
+  String toString() {
+    return json.encode(this);
+  }
+}