diff --git a/api/@ohos.app.ability.autoFillManager.d.ts b/api/@ohos.app.ability.autoFillManager.d.ts
index 08abf86c63c1d6f251cd97462aa259f9efa24e00..59c3caf071ad56836d558dd7b83a99519a66de41 100644
--- a/api/@ohos.app.ability.autoFillManager.d.ts
+++ b/api/@ohos.app.ability.autoFillManager.d.ts
@@ -52,6 +52,30 @@ import { UIContext } from './@ohos.arkui.UIContext';
  * @arkts 1.1&1.2
  */
 declare namespace autoFillManager {
+  /**
+   * Called when auto save request is successfully handled.
+   *
+   * @typedef { function }
+   * @syscap SystemCapability.Ability.AbilityRuntime.AbilityCore
+   * @stagemodelonly
+   * @atomicservice
+   * @since arkts {'1.1':'12', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  type OnSuccessFn = () => void;
+
+  /**
+   * Called when auto save request is failed to be handled.
+   *
+   * @typedef { function }
+   * @syscap SystemCapability.Ability.AbilityRuntime.AbilityCore
+   * @stagemodelonly
+   * @atomicservice
+   * @since arkts {'1.1':'12', '1.2':'20'}
+   * @arkts 1.1&1.2
+   */
+  type OnFailureFn = () => void;
+
   /**
    * Auto save callback.
    *
@@ -81,13 +105,14 @@ declare namespace autoFillManager {
     /**
      * Called when auto save request is successfully handled.
      *
+     * @type { OnSuccessFn }
      * @syscap SystemCapability.Ability.AbilityRuntime.AbilityCore
      * @stagemodelonly
      * @atomicservice
      * @since arkts {'1.1':'12', '1.2':'20'}
      * @arkts 1.1&1.2
      */
-    onSuccess(): void;
+    onSuccess: OnSuccessFn;
 
     /**
      * Called when auto save request is failed to be handled.
@@ -99,13 +124,14 @@ declare namespace autoFillManager {
     /**
      * Called when auto save request is failed to be handled.
      *
+     * @type { OnFailureFn }
      * @syscap SystemCapability.Ability.AbilityRuntime.AbilityCore
      * @stagemodelonly
      * @atomicservice
      * @since arkts {'1.1':'12', '1.2':'20'}
      * @arkts 1.1&1.2
      */
-    onFailure(): void;
+    onFailure: OnFailureFn;
   }
 
   /**
diff --git a/api/@ohos.application.testRunner.d.ts b/api/@ohos.application.testRunner.d.ts
index ea86d1c15bdffb3c8d6cba4fe063a05a8d754121..ebd8837d3ff1e5422ef584cfac24be8cf8e809b0 100644
--- a/api/@ohos.application.testRunner.d.ts
+++ b/api/@ohos.application.testRunner.d.ts
@@ -18,6 +18,28 @@
  * @kit TestKit
  */
 
+/**
+ * Prepare the unit testing environment for running test cases.
+ *
+ * @typedef { Function }
+ * @syscap SystemCapability.Ability.AbilityRuntime.Core
+ * @atomicservice
+ * @since arkts {'1.1':'11', '1.2':'20'}
+ * @arkts 1.1&1.2
+ */
+type OnPrepareFn = () => void;
+
+/**
+ * Run all test cases.
+ * 
+ * @typedef { Function }
+ * @syscap SystemCapability.Ability.AbilityRuntime.Core
+ * @atomicservice
+ * @since arkts {'1.1':'11', '1.2':'20'}
+ * @arkts 1.1&1.2
+ */
+type OnRunFn = () => void;
+
 /**
  * Base class for the test framework.
  * If you want to implement your own unit test framework, you must inherit this class and overrides all its methods.
@@ -45,13 +67,14 @@ interface TestRunner {
    */
   /**
    * Prepare the unit testing environment for running test cases.
-   *
+   * 
+   * @type { OnPrepareFn }
    * @syscap SystemCapability.Ability.AbilityRuntime.Core
    * @atomicservice
    * @since arkts {'1.1':'11', '1.2':'20'}
    * @arkts 1.1&1.2
    */
-  onPrepare(): void;
+  onPrepare: OnPrepareFn;
 
   /**
    * Run all test cases.
@@ -62,12 +85,13 @@ interface TestRunner {
   /**
    * Run all test cases.
    *
+   * @typedef { OnRunFn }
    * @syscap SystemCapability.Ability.AbilityRuntime.Core
    * @atomicservice
    * @since arkts {'1.1':'11', '1.2':'20'}
    * @arkts 1.1&1.2
    */
-  onRun(): void;
+  onRun: OnRunFn;
 }
 
 /*** if arkts 1.1 */
diff --git a/api/ability/connectOptions.d.ts b/api/ability/connectOptions.d.ts
index ba55aa9e5dd74b7d6e5545c3d6f18fb24ab8c6f8..6206ab6a25160c33fae4c849f78a7ae3d00bbc3e 100644
--- a/api/ability/connectOptions.d.ts
+++ b/api/ability/connectOptions.d.ts
@@ -21,6 +21,40 @@
 import { ElementName } from '../bundleManager/ElementName';
 import rpc from './../@ohos.rpc';
 
+/**
+ * The callback interface was connect successfully.
+ *
+ * @typedef { Function }
+ * @param { ElementName } elementName - The ohos.bundleManager.ElementName object of the service ability
+ * @param { rpc.IRemoteObject } remote - The remote object instance
+ * @syscap SystemCapability.Ability.AbilityRuntime.Core
+ * @since arkts {'1.1':'12', '1.2':'20'}
+ * @arkts 1.1&1.2
+ */
+type OnConnectFn = (elementName: ElementName, remote: rpc.IRemoteObject) => void;
+
+/**
+ * The callback interface was disconnect successfully.
+ *
+ * typedef { Function }
+ * @param { ElementName } elementName - The ohos.bundleManager.ElementName object of the service ability
+ * @syscap SystemCapability.Ability.AbilityRuntime.Core
+ * @since arkts {'1.1':'12', '1.2':'20'}
+ * @arkts 1.1&1.2
+ */
+type OnDisconnectFn = (elementName: ElementName) => void;
+
+/**
+ * The callback interface was connect failed.
+ *
+ * @typedef { Function }
+ * @param { int } code - The error code of the failed.
+ * @syscap SystemCapability.Ability.AbilityRuntime.Core
+ * @since arkts {'1.1':'7', '1.2':'20'}
+ * @arkts 1.1&1.2
+ */
+type OnFailedFn = (code: int) => void;
+
 /**
  * As an input parameter when connecting a specified background service, it is used to receive
  * state changes during the connection.
@@ -42,13 +76,12 @@ export interface ConnectOptions {
   /**
    * The callback interface was connect successfully.
    *
-   * @param { ElementName } elementName - The ohos.bundleManager.ElementName object of the service ability
-   * @param { rpc.IRemoteObject } remote - The remote object instance
+   * @type { OnConnectFn }
    * @syscap SystemCapability.Ability.AbilityRuntime.Core
    * @since arkts {'1.1':'12', '1.2':'20'}
    * @arkts 1.1&1.2
    */
-  onConnect(elementName: ElementName, remote: rpc.IRemoteObject): void;
+  onConnect: OnConnectFn;
 
   /**
    * The callback interface was disconnect successfully.
@@ -60,20 +93,20 @@ export interface ConnectOptions {
   /**
    * The callback interface was disconnect successfully.
    *
-   * @param { ElementName } elementName - The ohos.bundleManager.ElementName object of the service ability
+   * @type { OnDisconnectFn }
    * @syscap SystemCapability.Ability.AbilityRuntime.Core
    * @since arkts {'1.1':'12', '1.2':'20'}
    * @arkts 1.1&1.2
    */
-  onDisconnect(elementName: ElementName): void;
+  onDisconnect: OnDisconnectFn;
 
   /**
    * The callback interface was connect failed.
    *
-   * @param { int } code - The error code of the failed.
+   * @typedef { OnFailedFn }
    * @syscap SystemCapability.Ability.AbilityRuntime.Core
    * @since arkts {'1.1':'7', '1.2':'20'}
    * @arkts 1.1&1.2
    */
-  onFailed(code: int): void;
+  onFailed: OnFailedFn;
 }