fix tests

packages/stream_chat/test/src/client/channel_test.dart

@@ -118,9 +118,9 @@ void main() {
 
     setUpAll(() {
       // Fallback values
-      registerFallbackValue<Message>(FakeMessage());
+      registerFallbackValue(FakeMessage());
-      registerFallbackValue<List<Message>>(<Message>[]);
+      registerFallbackValue(<Message>[]);
-      registerFallbackValue<AttachmentFile>(FakeAttachmentFile());
+      registerFallbackValue(FakeAttachmentFile());
 
       // detached loggers
       when(() => client.detachedLogger(any())).thenAnswer((invocation) {
@@ -176,9 +176,9 @@ void main() {
 
     setUpAll(() {
       // Fallback values
-      registerFallbackValue<Message>(FakeMessage());
+      registerFallbackValue(FakeMessage());
-      registerFallbackValue<AttachmentFile>(FakeAttachmentFile());
+      registerFallbackValue(FakeAttachmentFile());
-      registerFallbackValue<Event>(FakeEvent());
+      registerFallbackValue(FakeEvent());
 
       // detached loggers
       when(() => client.detachedLogger(any())).thenAnswer((invocation) {

packages/stream_chat/test/src/client/client_test.dart

@@ -31,7 +31,7 @@ void main() {
 
     setUpAll(() {
       // fallback values
-      registerFallbackValue<User>(FakeUser());
+      registerFallbackValue(FakeUser());
     });
 
     setUp(() {
@@ -230,7 +230,7 @@ void main() {
 
     setUpAll(() {
       // fallback values
-      registerFallbackValue<User>(FakeUser());
+      registerFallbackValue(FakeUser());
     });
 
     setUp(() {
@@ -311,7 +311,7 @@ void main() {
 
     setUpAll(() {
       // fallback values
-      registerFallbackValue<User>(FakeUser());
+      registerFallbackValue(FakeUser());
     });
 
     setUp(() {
@@ -399,7 +399,7 @@ void main() {
 
     setUpAll(() {
       // fallback values
-      registerFallbackValue<User>(FakeUser());
+      registerFallbackValue(FakeUser());
     });
 
     setUp(() {
@@ -523,9 +523,9 @@ void main() {
 
     setUpAll(() {
       // fallback values
-      registerFallbackValue<Event>(FakeEvent());
+      registerFallbackValue(FakeEvent());
-      registerFallbackValue<PaginationParams>(const PaginationParams());
+      registerFallbackValue(const PaginationParams());
-      registerFallbackValue<ChannelState>(FakeChannelState());
+      registerFallbackValue(FakeChannelState());
     });
 
     setUp(() async {
@@ -827,9 +827,9 @@ void main() {
 
     setUpAll(() {
       // fallback values
-      registerFallbackValue<Event>(FakeEvent());
+      registerFallbackValue(FakeEvent());
-      registerFallbackValue<Message>(FakeMessage());
+      registerFallbackValue(FakeMessage());
-      registerFallbackValue<PaginationParams>(const PaginationParams());
+      registerFallbackValue(const PaginationParams());
     });
 
     setUp(() async {

packages/stream_chat/test/src/core/api/attachment_file_uploader_test.dart

@@ -15,7 +15,7 @@ void main() {
 
   setUp(() {
     fileUploader = StreamAttachmentFileUploader(client);
-    registerFallbackValue<MultipartFile>(FakeMultiPartFile());
+    registerFallbackValue(FakeMultiPartFile());
   });
 
   Response successResponse(String path, {Object? data}) => Response(

packages/stream_chat_flutter/test/scrollable_positioned_list/horizontal_scrollable_positioned_list_test.dart

@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'dart:async';
 import 'dart:ui';
 
 import 'package:flutter/material.dart';

packages/stream_chat_flutter/test/scrollable_positioned_list/reversed_scrollable_positioned_list_test.dart

@@ -3,6 +3,7 @@
 // found in the LICENSE file.
 
 import 'dart:ui';
+import 'dart:async';
 
 import 'package:flutter/material.dart';
 import 'package:flutter_test/flutter_test.dart';

packages/stream_chat_flutter/test/scrollable_positioned_list/scrollable_positioned_list_test.dart

@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'dart:async';
 import 'dart:math';
 import 'dart:ui';
 

packages/stream_chat_flutter/test/scrollable_positioned_list/separated_scrollable_positioned_list_test.dart

@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'dart:async';
 import 'dart:ui';
 
 import 'package:flutter/material.dart';

packages/stream_chat_flutter/test/scrollable_positioned_list/seperated_horizontal_scrollable_positioned_list_test.dart

@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'dart:async';
 import 'dart:ui';
 
 import 'package:flutter/material.dart';

packages/stream_chat_flutter_core/test/channels_bloc_test.dart

@@ -10,7 +10,7 @@ import 'mocks.dart';
 
 void main() {
   setUpAll(() {
-    registerFallbackValue<PaginationParams>(const PaginationParams());
+    registerFallbackValue(const PaginationParams());
   });
 
   List<Channel> _generateChannels(