Started with integration of partial payments for iOS

ios/Classes/dropIn/dropInAdvancedFlow/models/EncodableBalance.swift

@@ -0,0 +1,17 @@
+import Adyen
+import Foundation
+
+extension Balance: Decodable {
+
+    public init(from decoder: any Decoder) throws {
+        let container = try decoder.container(keyedBy: CodingKeys.self)
+        let availableAmount = try container.decode(Amount.self, forKey: .availableAmount)
+        let transactionLimit = try container.decodeIfPresent(Amount.self, forKey: .transactionLimit)
+        self = .init(availableAmount: availableAmount, transactionLimit: transactionLimit)
+    }
+
+    private enum CodingKeys: String, CodingKey {
+        case availableAmount = "balance"
+        case transactionLimit
+    }
+}

lib/src/drop_in/drop_in.dart

@@ -241,6 +241,10 @@ class DropIn {
     final Map<String, dynamic> submitDataDecoded = jsonDecode(submitData);
     switch (advancedCheckout) {
       case AdvancedCheckout it:
+        if (submitDataDecoded[Constants.submitDataKey].containsKey("order")) {
+          _mapOrderToCompactOrder(submitDataDecoded);
+        }
+
         final PaymentEvent paymentEvent = await it.onSubmit(
           submitDataDecoded[Constants.submitDataKey],
           submitDataDecoded[Constants.submitExtraKey],
@@ -251,6 +255,14 @@ class DropIn {
     }
   }
 
+  void _mapOrderToCompactOrder(Map<String, dynamic> submitDataDecoded) {
+    final order = submitDataDecoded[Constants.submitDataKey]["order"];
+    submitDataDecoded[Constants.submitDataKey]["order"] = {
+      "pspReference": order["pspReference"],
+      "orderData": order["orderData"],
+    };
+  }
+
   Future<PaymentEvent> _getOnAdditionalDetailsPaymentEvent(
       PlatformCommunicationModel event, Checkout advancedCheckout) async {
     switch (advancedCheckout) {