diff --git a/frontend/app_flowy/packages/appflowy_editor/lib/src/extensions/text_node_extensions.dart b/frontend/app_flowy/packages/appflowy_editor/lib/src/extensions/text_node_extensions.dart
index d4d7857286..4d8c44b9fa 100644
--- a/frontend/app_flowy/packages/appflowy_editor/lib/src/extensions/text_node_extensions.dart
+++ b/frontend/app_flowy/packages/appflowy_editor/lib/src/extensions/text_node_extensions.dart
@@ -6,7 +6,7 @@ import 'package:appflowy_editor/src/document/text_delta.dart';
 import 'package:appflowy_editor/src/document/built_in_attribute_keys.dart';
 
 extension TextNodeExtension on TextNode {
-  dynamic getAttributeInSelection(Selection selection, String styleKey) {
+  T? getAttributeInSelection<T>(Selection selection, String styleKey) {
     final ops = delta.whereType<TextInsert>();
     final startOffset =
         selection.isBackward ? selection.start.offset : selection.end.offset;
@@ -29,40 +29,42 @@ extension TextNodeExtension on TextNode {
   }
 
   bool allSatisfyLinkInSelection(Selection selection) =>
-      allSatisfyInSelection(selection, BuiltInAttributeKey.href, (value) {
+      allSatisfyInSelection(selection, BuiltInAttributeKey.href, <bool>(value) {
         return value != null;
       });
 
   bool allSatisfyBoldInSelection(Selection selection) =>
-      allSatisfyInSelection(selection, BuiltInAttributeKey.bold, (value) {
+      allSatisfyInSelection(selection, BuiltInAttributeKey.bold, <bool>(value) {
         return value == true;
       });
 
   bool allSatisfyItalicInSelection(Selection selection) =>
-      allSatisfyInSelection(selection, BuiltInAttributeKey.italic, (value) {
+      allSatisfyInSelection(selection, BuiltInAttributeKey.italic,
+          <bool>(value) {
         return value == true;
       });
 
   bool allSatisfyUnderlineInSelection(Selection selection) =>
-      allSatisfyInSelection(selection, BuiltInAttributeKey.underline, (value) {
+      allSatisfyInSelection(selection, BuiltInAttributeKey.underline,
+          <bool>(value) {
         return value == true;
       });
 
   bool allSatisfyStrikethroughInSelection(Selection selection) =>
       allSatisfyInSelection(selection, BuiltInAttributeKey.strikethrough,
-          (value) {
+          <bool>(value) {
         return value == true;
       });
 
   bool allSatisfyCodeInSelection(Selection selection) =>
-      allSatisfyInSelection(selection, BuiltInAttributeKey.code, (value) {
+      allSatisfyInSelection(selection, BuiltInAttributeKey.code, <bool>(value) {
         return value == true;
       });
 
   bool allSatisfyInSelection(
     Selection selection,
     String styleKey,
-    bool Function(dynamic value) test,
+    bool Function<T>(T value) test,
   ) {
     if (BuiltInAttributeKey.globalStyleKeys.contains(styleKey)) {
       if (attributes.containsKey(styleKey)) {
@@ -127,40 +129,40 @@ extension TextNodesExtension on List<TextNode> {
   bool allSatisfyBoldInSelection(Selection selection) => allSatisfyInSelection(
         selection,
         BuiltInAttributeKey.bold,
-        (value) => value == true,
+        <bool>(value) => value == true,
       );
 
   bool allSatisfyItalicInSelection(Selection selection) =>
       allSatisfyInSelection(
         selection,
         BuiltInAttributeKey.italic,
-        (value) => value == true,
+        <bool>(value) => value == true,
       );
 
   bool allSatisfyUnderlineInSelection(Selection selection) =>
       allSatisfyInSelection(
         selection,
         BuiltInAttributeKey.underline,
-        (value) => value == true,
+        <bool>(value) => value == true,
       );
 
   bool allSatisfyStrikethroughInSelection(Selection selection) =>
       allSatisfyInSelection(
         selection,
         BuiltInAttributeKey.strikethrough,
-        (value) => value == true,
+        <bool>(value) => value == true,
       );
 
   bool allSatisfyInSelection(
     Selection selection,
     String styleKey,
-    bool Function(dynamic value) test,
+    bool Function<T>(T value) test,
   ) {
     if (isEmpty) {
       return false;
     }
     if (length == 1) {
-      return first.allSatisfyInSelection(selection, styleKey, (value) {
+      return first.allSatisfyInSelection(selection, styleKey, <bool>(value) {
         return test(value);
       });
     } else {
diff --git a/frontend/app_flowy/packages/appflowy_editor/lib/src/render/toolbar/toolbar_item.dart b/frontend/app_flowy/packages/appflowy_editor/lib/src/render/toolbar/toolbar_item.dart
index 6407f81cb3..1b531f306b 100644
--- a/frontend/app_flowy/packages/appflowy_editor/lib/src/render/toolbar/toolbar_item.dart
+++ b/frontend/app_flowy/packages/appflowy_editor/lib/src/render/toolbar/toolbar_item.dart
@@ -73,7 +73,7 @@ List<ToolbarItem> defaultToolbarItems = [
     highlightCallback: (editorState) => _allSatisfy(
       editorState,
       BuiltInAttributeKey.heading,
-      (value) => value == BuiltInAttributeKey.h1,
+      <bool>(value) => value == BuiltInAttributeKey.h1,
     ),
     handler: (editorState, context) =>
         formatHeading(editorState, BuiltInAttributeKey.h1),
@@ -90,7 +90,7 @@ List<ToolbarItem> defaultToolbarItems = [
     highlightCallback: (editorState) => _allSatisfy(
       editorState,
       BuiltInAttributeKey.heading,
-      (value) => value == BuiltInAttributeKey.h2,
+      <bool>(value) => value == BuiltInAttributeKey.h2,
     ),
     handler: (editorState, context) =>
         formatHeading(editorState, BuiltInAttributeKey.h2),
@@ -107,7 +107,7 @@ List<ToolbarItem> defaultToolbarItems = [
     highlightCallback: (editorState) => _allSatisfy(
       editorState,
       BuiltInAttributeKey.heading,
-      (value) => value == BuiltInAttributeKey.h3,
+      <bool>(value) => value == BuiltInAttributeKey.h3,
     ),
     handler: (editorState, context) =>
         formatHeading(editorState, BuiltInAttributeKey.h3),
@@ -124,7 +124,7 @@ List<ToolbarItem> defaultToolbarItems = [
     highlightCallback: (editorState) => _allSatisfy(
       editorState,
       BuiltInAttributeKey.bold,
-      (value) => value == true,
+      <bool>(value) => value == true,
     ),
     handler: (editorState, context) => formatBold(editorState),
   ),
@@ -140,7 +140,7 @@ List<ToolbarItem> defaultToolbarItems = [
     highlightCallback: (editorState) => _allSatisfy(
       editorState,
       BuiltInAttributeKey.italic,
-      (value) => value == true,
+      <bool>(value) => value == true,
     ),
     handler: (editorState, context) => formatItalic(editorState),
   ),
@@ -156,7 +156,7 @@ List<ToolbarItem> defaultToolbarItems = [
     highlightCallback: (editorState) => _allSatisfy(
       editorState,
       BuiltInAttributeKey.underline,
-      (value) => value == true,
+      <bool>(value) => value == true,
     ),
     handler: (editorState, context) => formatUnderline(editorState),
   ),
@@ -172,7 +172,7 @@ List<ToolbarItem> defaultToolbarItems = [
     highlightCallback: (editorState) => _allSatisfy(
       editorState,
       BuiltInAttributeKey.strikethrough,
-      (value) => value == true,
+      <bool>(value) => value == true,
     ),
     handler: (editorState, context) => formatStrikethrough(editorState),
   ),
@@ -188,7 +188,7 @@ List<ToolbarItem> defaultToolbarItems = [
     highlightCallback: (editorState) => _allSatisfy(
       editorState,
       BuiltInAttributeKey.code,
-      (value) => value == true,
+      <bool>(value) => value == true,
     ),
     handler: (editorState, context) => formatEmbedCode(editorState),
   ),
@@ -204,7 +204,7 @@ List<ToolbarItem> defaultToolbarItems = [
     highlightCallback: (editorState) => _allSatisfy(
       editorState,
       BuiltInAttributeKey.subtype,
-      (value) => value == BuiltInAttributeKey.quote,
+      <bool>(value) => value == BuiltInAttributeKey.quote,
     ),
     handler: (editorState, context) => formatQuote(editorState),
   ),
@@ -220,7 +220,7 @@ List<ToolbarItem> defaultToolbarItems = [
     highlightCallback: (editorState) => _allSatisfy(
       editorState,
       BuiltInAttributeKey.subtype,
-      (value) => value == BuiltInAttributeKey.bulletedList,
+      <bool>(value) => value == BuiltInAttributeKey.bulletedList,
     ),
     handler: (editorState, context) => formatBulletedList(editorState),
   ),
@@ -236,7 +236,7 @@ List<ToolbarItem> defaultToolbarItems = [
     highlightCallback: (editorState) => _allSatisfy(
       editorState,
       BuiltInAttributeKey.href,
-      (value) => value != null,
+      <bool>(value) => value != null,
     ),
     handler: (editorState, context) => showLinkMenu(context, editorState),
   ),
@@ -252,7 +252,7 @@ List<ToolbarItem> defaultToolbarItems = [
     highlightCallback: (editorState) => _allSatisfy(
       editorState,
       BuiltInAttributeKey.backgroundColor,
-      (value) => value != null,
+      <bool>(value) => value != null,
     ),
     handler: (editorState, context) => formatHighlight(
       editorState,
@@ -284,7 +284,7 @@ ToolbarItemValidator _showInBuiltInTextSelection = (editorState) {
 bool _allSatisfy(
   EditorState editorState,
   String styleKey,
-  bool Function(dynamic value) test,
+  bool Function<T>(T value) test,
 ) {
   final selection = editorState.service.selectionService.currentSelection.value;
   return selection != null &&
@@ -333,8 +333,10 @@ void showLinkMenu(
   final textNode = node.first as TextNode;
   String? linkText;
   if (textNode.allSatisfyLinkInSelection(selection)) {
-    linkText =
-        textNode.getAttributeInSelection(selection, BuiltInAttributeKey.href);
+    linkText = textNode.getAttributeInSelection<String>(
+      selection,
+      BuiltInAttributeKey.href,
+    );
   }
   _linkMenuOverlay = OverlayEntry(builder: (context) {
     return Positioned(
diff --git a/frontend/app_flowy/packages/appflowy_editor/lib/src/service/default_text_operations/format_rich_text_style.dart b/frontend/app_flowy/packages/appflowy_editor/lib/src/service/default_text_operations/format_rich_text_style.dart
index 053d9e542a..0377b9e37c 100644
--- a/frontend/app_flowy/packages/appflowy_editor/lib/src/service/default_text_operations/format_rich_text_style.dart
+++ b/frontend/app_flowy/packages/appflowy_editor/lib/src/service/default_text_operations/format_rich_text_style.dart
@@ -188,7 +188,7 @@ bool _allSatisfyInSelection(
     return false;
   }
 
-  return textNodes.allSatisfyInSelection(selection, styleKey, (value) {
+  return textNodes.allSatisfyInSelection(selection, styleKey, <bool>(value) {
     return value == matchValue;
   });
 }
diff --git a/frontend/app_flowy/packages/appflowy_editor/test/extensions/text_node_extensions_test.dart b/frontend/app_flowy/packages/appflowy_editor/test/extensions/text_node_extensions_test.dart
new file mode 100644
index 0000000000..bec92362f4
--- /dev/null
+++ b/frontend/app_flowy/packages/appflowy_editor/test/extensions/text_node_extensions_test.dart
@@ -0,0 +1,10 @@
+import 'package:appflowy_editor/appflowy_editor.dart';
+import 'package:flutter_test/flutter_test.dart';
+
+void main() {
+  group('TextNodeExtension::', () {
+    test('description', () {
+      final selecion = Selection.single(path: [0, 1, 2], startOffset: 0);
+    });
+  });
+}
diff --git a/frontend/app_flowy/packages/appflowy_editor/test/render/rich_text/toolbar_rich_text_test.dart b/frontend/app_flowy/packages/appflowy_editor/test/render/rich_text/toolbar_rich_text_test.dart
index c9d9ef9e70..49990b4662 100644
--- a/frontend/app_flowy/packages/appflowy_editor/test/render/rich_text/toolbar_rich_text_test.dart
+++ b/frontend/app_flowy/packages/appflowy_editor/test/render/rich_text/toolbar_rich_text_test.dart
@@ -229,7 +229,7 @@ void main() async {
         node.allSatisfyInSelection(
           code,
           BuiltInAttributeKey.code,
-          (value) {
+          <bool>(value) {
             return value == true;
           },
         ),
@@ -319,7 +319,7 @@ void main() async {
         node.allSatisfyInSelection(
           selection,
           BuiltInAttributeKey.backgroundColor,
-          (value) {
+          <bool>(value) {
             return value == blue;
           },
         ),
diff --git a/frontend/app_flowy/packages/appflowy_editor/test/service/internal_key_event_handlers/format_style_handler_test.dart b/frontend/app_flowy/packages/appflowy_editor/test/service/internal_key_event_handlers/format_style_handler_test.dart
index 0cb4c71600..684e7d21f1 100644
--- a/frontend/app_flowy/packages/appflowy_editor/test/service/internal_key_event_handlers/format_style_handler_test.dart
+++ b/frontend/app_flowy/packages/appflowy_editor/test/service/internal_key_event_handlers/format_style_handler_test.dart
@@ -111,7 +111,7 @@ Future<void> _testUpdateTextStyleByCommandX(
       textNode.allSatisfyInSelection(
         selection,
         matchStyle,
-        (value) {
+        <bool>(value) {
           return value == matchValue;
         },
       ),
@@ -138,7 +138,7 @@ Future<void> _testUpdateTextStyleByCommandX(
       textNode.allSatisfyInSelection(
         selection,
         matchStyle,
-        (value) {
+        <bool>(value) {
           return value == matchValue;
         },
       ),
@@ -192,7 +192,7 @@ Future<void> _testUpdateTextStyleByCommandX(
           endOffset: text.length,
         ),
         matchStyle,
-        (value) {
+        <bool>(value) {
           return value == matchValue;
         },
       ),
@@ -266,7 +266,7 @@ Future<void> _testLinkMenuInSingleTextSelection(WidgetTester tester) async {
       node.allSatisfyInSelection(
         selection,
         BuiltInAttributeKey.href,
-        (value) => value == link,
+        <bool>(value) => value == link,
       ),
       true);
 
@@ -303,7 +303,7 @@ Future<void> _testLinkMenuInSingleTextSelection(WidgetTester tester) async {
       node.allSatisfyInSelection(
         selection,
         BuiltInAttributeKey.href,
-        (value) => value == link,
+        <bool>(value) => value == link,
       ),
       false);
 }