working sync complete

lib/models/sync_data.dart

@@ -0,0 +1,20 @@
+import "package:freezed_annotation/freezed_annotation.dart";
+import "package:nexus/models/room.dart";
+part "sync_data.freezed.dart";
+part "sync_data.g.dart";
+
+@freezed
+abstract class SyncData with _$SyncData {
+  const factory SyncData({
+    @Default(false) bool clearState,
+    // required Map<String, AccountData> accountData,
+    @Default({}) Map<String, Room> rooms,
+    @Default([]) List<String> leftRooms,
+    // required List<InvitedRoom> invitedRooms,
+    // required List<SpaceEdge> spaceEdges,
+    @Default([]) List<String> topLevelSpaces,
+  }) = _SyncData;
+
+  factory SyncData.fromJson(Map<String, Object?> json) =>
+      _$SyncDataFromJson(json);
+}