diff --git a/api/@internal/component/ets/common_ts_ets_api.d.ts b/api/@internal/component/ets/common_ts_ets_api.d.ts
index 2e33d8736dc0b52564bf4e07e49c5c7d72a1b5cb..340a574e2bec61656d8b94514f619b0fc25232f5 100644
--- a/api/@internal/component/ets/common_ts_ets_api.d.ts
+++ b/api/@internal/component/ets/common_ts_ets_api.d.ts
@@ -110,6 +110,10 @@ declare class AppStorage {
  * @since 7
  * @systemapi
  */
+/**
+ * Defines the subscribed abstract property.
+ * @since 9
+ */
 declare abstract class SubscribedAbstractProperty<T> {
   /**
    * Setting Subscribers.
@@ -170,6 +174,10 @@ declare abstract class SubscribedAbstractProperty<T> {
    * @since 7
    * @systemapi
    */
+  /**
+   * Called when data is obtained.
+   * @since 9
+   */
   abstract get(): T;
 
   /**
@@ -177,6 +185,10 @@ declare abstract class SubscribedAbstractProperty<T> {
    * @since 7
    * @systemapi
    */
+  /**
+   * Called when data is created.
+   * @since 9
+   */
   abstract set(newValue: T): void;
 
   /**