fix: use ChildrenState for children_state in the room hierarchy response

lib/src/generated/api.dart

@@ -4,6 +4,7 @@ import '../model/auth/authentication_identifier.dart';
 import '../model/matrix_keys.dart';
 import '../model/sync_update.dart';
 import '../model/matrix_event.dart';
+import '../model/children_state.dart';
 
 import 'model.dart';
 import 'fixed_model.dart';
@@ -1977,7 +1978,7 @@ class Api {
   /// returns `global`:
   /// The global ruleset.
   Future<PushRuleSet> getPushRules() async {
-    final requestUri = Uri(path: '_matrix/client/v3/pushrules');
+    final requestUri = Uri(path: '_matrix/client/v3/pushrules/');
     final request = Request('GET', baseUri!.resolveUri(requestUri));
     request.headers['authorization'] = 'Bearer ${bearerToken!}';
     final response = await httpClient.send(request);

lib/src/generated/model.dart

@@ -4,6 +4,7 @@ import '../model/auth/authentication_identifier.dart';
 import '../model/matrix_keys.dart';
 import '../model/sync_update.dart';
 import '../model/matrix_event.dart';
+import '../model/children_state.dart';
 
 import 'internal.dart';
 import 'package:enhanced_enum/enhanced_enum.dart';
@@ -169,7 +170,7 @@ class SpaceRoomsChunkBase {
 
   SpaceRoomsChunkBase.fromJson(Map<String, dynamic> json)
       : childrenState = (json['children_state'] as List)
-            .map((v) => MatrixEvent.fromJson(v))
+            .map((v) => ChildrenState.fromJson(v))
             .toList(),
         roomType = ((v) => v != null ? v as String : null)(json['room_type']);
   Map<String, dynamic> toJson() {
@@ -184,7 +185,7 @@ class SpaceRoomsChunkBase {
   /// as [Stripped State Events](#stripped-state) with an added `origin_server_ts` key.
   ///
   /// If the room is not a space-room, this should be empty.
-  List<MatrixEvent> childrenState;
+  List<ChildrenState> childrenState;
 
   /// The `type` of room (from [`m.room.create`](https://spec.matrix.org/unstable/client-server-api/#mroomcreate)), if any.
   String? roomType;
@@ -219,7 +220,7 @@ class SpaceRoomsChunk implements PublicRoomsChunk, SpaceRoomsChunkBase {
         topic = ((v) => v != null ? v as String : null)(json['topic']),
         worldReadable = json['world_readable'] as bool,
         childrenState = (json['children_state'] as List)
-            .map((v) => MatrixEvent.fromJson(v))
+            .map((v) => ChildrenState.fromJson(v))
             .toList(),
         roomType = ((v) => v != null ? v as String : null)(json['room_type']);
   Map<String, dynamic> toJson() {
@@ -278,7 +279,7 @@ class SpaceRoomsChunk implements PublicRoomsChunk, SpaceRoomsChunkBase {
   /// as [Stripped State Events](#stripped-state) with an added `origin_server_ts` key.
   ///
   /// If the room is not a space-room, this should be empty.
-  List<MatrixEvent> childrenState;
+  List<ChildrenState> childrenState;
 
   /// The `type` of room (from [`m.room.create`](https://spec.matrix.org/unstable/client-server-api/#mroomcreate)), if any.
   String? roomType;

lib/src/model/children_state.dart

@@ -0,0 +1,52 @@
+/* MIT License
+* 
+* Copyright (C) 2022 Famedly GmbH
+* 
+* Permission is hereby granted, free of charge, to any person obtaining a copy
+* of this software and associated documentation files (the "Software"), to deal
+* in the Software without restriction, including without limitation the rights
+* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+* copies of the Software, and to permit persons to whom the Software is
+* furnished to do so, subject to the following conditions:
+* 
+* The above copyright notice and this permission notice shall be included in all
+* copies or substantial portions of the Software.
+* 
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+* SOFTWARE.
+*/
+
+import 'stripped_state_event.dart';
+
+class ChildrenState extends StrippedStateEvent {
+  DateTime originServerTs;
+
+  ChildrenState({
+    required String type,
+    required Map<String, dynamic> content,
+    required String senderId,
+    required String stateKey,
+    required this.originServerTs,
+  }) : super(
+            type: type,
+            content: content,
+            senderId: senderId,
+            stateKey: stateKey);
+
+  ChildrenState.fromJson(Map<String, dynamic> json)
+      : originServerTs =
+            DateTime.fromMillisecondsSinceEpoch(json['origin_server_ts']),
+        super.fromJson(json);
+
+  @override
+  Map<String, dynamic> toJson() {
+    final data = super.toJson();
+    data['origin_server_ts'] = originServerTs.millisecondsSinceEpoch;
+    return data;
+  }
+}