diff --git a/api/@internal/component/ets/common.d.ts b/api/@internal/component/ets/common.d.ts
index 788077c39fb0883d7b6d70778d9c6677263cc551..ca5a28f447a3f830484b78515e5528f2271387f2 100644
--- a/api/@internal/component/ets/common.d.ts
+++ b/api/@internal/component/ets/common.d.ts
@@ -180,6 +180,20 @@ declare function $r(value: string, ...params: any[]): Resource;
  */
 declare function $rawfile(value: string): Resource;
 
+/**
+ * global getContentStorage function
+ * @since 8
+ */
+declare function getContentStorage(value: any): ContentStorage;
+
+declare type Context = any;
+
+/**
+ * global getContext function
+ * @since 8
+ */
+declare function getContext(value: any): Context;
+
 interface AnimateToParam {
   duration?: number;
   tempo?: number;
diff --git a/api/@internal/component/ets/stateManagement.d.ts b/api/@internal/component/ets/stateManagement.d.ts
index ca532e1754d9397d6e0b8d4e882d60f598e9ef4c..0fea7d5697cf83487c3a9badf7fe6e022265c017 100644
--- a/api/@internal/component/ets/stateManagement.d.ts
+++ b/api/@internal/component/ets/stateManagement.d.ts
@@ -502,6 +502,89 @@ declare abstract class SubscribaleAbstract {
   public removeOwningPropertyById(subscriberId: number): void;
 }
 
+/**
+ * @since 8
+ */
+ declare class ContentStorage {
+  /**
+   * Called when a link is set.
+   * @since 8
+   */
+  link(propName: string): any;
+
+  /**
+   * Called when a hyperlink is set.
+   * @since 8
+   */
+  setAndLink<T>(propName: string, defaultValue: T): SubscribedAbstractProperty<T>;
+
+  /**
+   * Called when a property is set.
+   * @since 8
+   */
+  prop(propName: string): any;
+
+  /**
+   * Called when dynamic properties are set.
+   * @since 8
+   */
+  setAndProp<S>(propName: string, defaultValue: S): SubscribedAbstractProperty<S>;
+
+  /**
+   * Called when owning or not.
+   * @since 8
+   */
+  has(propName: string): boolean;
+
+  /**
+   * Called when data is obtained.
+   * @since 8
+   */
+  get<T>(propName: string): T | undefined;
+
+  /**
+   * Called when setting.
+   * @since 8
+   */
+  set<T>(propName: string, newValue: T): boolean;
+
+  /**
+   * Called when setting or creating.
+   * @since 8
+   */
+  setOrCreate<T>(propName: string, newValue: T): void;
+
+  /**
+   * Called when a deletion is made.
+   * @since 8
+   */
+  delete(propName: string): boolean;
+
+  /**
+   * Called when a dictionary is sorted.
+   * @since 8
+   */
+  keys(): IterableIterator<string>;
+
+  /**
+   * Called when a cleanup occurs.
+   * @since 8
+   */
+  clear(): boolean;
+
+  /**
+   * Called when the data can be changed.
+   * @since 8
+   */
+  isMutable(propName: string): boolean;
+
+  /**
+   * Called when you check how much data is stored.
+   * @since 8
+   */
+  size(): number;
+}
+
 /**
  * @since 7
  */