diff --git a/ui2abc/libarkts/generator/options.json5 b/ui2abc/libarkts/generator/options.json5
index d0b6e2709f65b82c36cd1e6e2132c906f5b23d01..3dfd6a7337b0663c7e99f580be82d8e051d36acc 100644
--- a/ui2abc/libarkts/generator/options.json5
+++ b/ui2abc/libarkts/generator/options.json5
@@ -253,7 +253,16 @@
                     types: ["returnType"]
                 }
             ]
-        }
+        },
+        {
+            name: "ClassDeclaration",
+            methods: [
+                {
+                    name: "Definition",
+                    types: ["returnType"]
+                }
+            ]
+        },
     ],
     fragments: [
         {
diff --git a/ui2abc/libarkts/src/generated/factory.ts b/ui2abc/libarkts/src/generated/factory.ts
index 92cbab944acfadc76675424ffc73dba79d4756bd..530293ff5dec7fc3e1868b22ffc1ad3a09b69569 100644
--- a/ui2abc/libarkts/src/generated/factory.ts
+++ b/ui2abc/libarkts/src/generated/factory.ts
@@ -1052,11 +1052,11 @@ export const factory = {
         return updateNodeByNode(TSAnyKeyword.createTSAnyKeyword(), original)
     }
     ,
-    createClassDeclaration(definition?: ClassDefinition, modifierFlags?: Es2pandaModifierFlags): ClassDeclaration {
+    createClassDeclaration(definition: ClassDefinition, modifierFlags?: Es2pandaModifierFlags): ClassDeclaration {
         return ClassDeclaration.createClassDeclaration(definition, modifierFlags)
     }
     ,
-    updateClassDeclaration(original: ClassDeclaration, definition?: ClassDefinition, modifierFlags?: Es2pandaModifierFlags): ClassDeclaration {
+    updateClassDeclaration(original: ClassDeclaration, definition: ClassDefinition, modifierFlags?: Es2pandaModifierFlags): ClassDeclaration {
         if (isSameNativeObject(definition, original.definition) && isSameNativeObject(modifierFlags, original.modifierFlags))
             return original
         return updateNodeByNode(ClassDeclaration.createClassDeclaration(definition, modifierFlags), original)
diff --git a/ui2abc/libarkts/src/generated/peers/ClassDeclaration.ts b/ui2abc/libarkts/src/generated/peers/ClassDeclaration.ts
index 08c1b62066ac7af0082c891148c9d6ab124c0bd3..e547e21949ed89b11b48964270d71ec8116d09a9 100644
--- a/ui2abc/libarkts/src/generated/peers/ClassDeclaration.ts
+++ b/ui2abc/libarkts/src/generated/peers/ClassDeclaration.ts
@@ -61,8 +61,8 @@ export class ClassDeclaration extends Statement {
         result.setChildrenParentPtr()
         return result
     }
-    get definition(): ClassDefinition | undefined {
-        return unpackNode(global.generatedEs2panda._ClassDeclarationDefinition(global.context, this.peer))
+    get definition(): ClassDefinition {
+        return unpackNonNullableNode(global.generatedEs2panda._ClassDeclarationDefinition(global.context, this.peer))
     }
     /** @deprecated */
     emplaceDecorators(decorators?: Decorator): this {