+ quotation provider

frontend/pshared/lib/data/dto/payment/endpoint.dart

@@ -0,0 +1,20 @@
+import 'package:json_annotation/json_annotation.dart';
+
+part 'endpoint.g.dart';
+
+
+@JsonSerializable()
+class PaymentEndpointDTO {
+  final String type;
+  final Map<String, dynamic> data;
+  final Map<String, String>? metadata;
+
+  const PaymentEndpointDTO({
+    required this.type,
+    required this.data,
+    this.metadata,
+  });
+
+  factory PaymentEndpointDTO.fromJson(Map<String, dynamic> json) => _$PaymentEndpointDTOFromJson(json);
+  Map<String, dynamic> toJson() => _$PaymentEndpointDTOToJson(this);
+}