diff --git a/en/application-dev/file-management/photoAccessHelper-notify-guidelines.md b/en/application-dev/file-management/photoAccessHelper-notify-guidelines.md
index 12e1f2c5beb2db4a666ad0cb7ec1b8b2989a071f..c216c76b8587b1d5e899c624de247f04ae25f511 100644
--- a/en/application-dev/file-management/photoAccessHelper-notify-guidelines.md
+++ b/en/application-dev/file-management/photoAccessHelper-notify-guidelines.md
@@ -81,7 +81,7 @@ import dataSharePredicates from '@ohos.data.dataSharePredicates';
 import photoAccessHelper from '@ohos.file.photoAccessHelper';
 
 let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
-let albumName = photoAccessHelper.AlbumKey.ALBUM_NAME;
+let albumName: photoAccessHelper.AlbumKeys = photoAccessHelper.AlbumKey.ALBUM_NAME;
 predicates.equalTo(albumName, 'albumName');
 let fetchOptions: dataSharePredicates.FetchOptions = {
   fetchColumns: [],
diff --git a/en/application-dev/file-management/photoAccessHelper-overview.md b/en/application-dev/file-management/photoAccessHelper-overview.md
index e8317f562e6ea8f8b0948606cb2d42f1e164480c..719da5ea9e1851316038dc0e92095154e715c7e6 100644
--- a/en/application-dev/file-management/photoAccessHelper-overview.md
+++ b/en/application-dev/file-management/photoAccessHelper-overview.md
@@ -108,7 +108,7 @@ The required permissions must be authorized by the user (user_grant). After addi
     onWindowStageCreate(windowStage) {
       let list : Array<Permissions> = ['ohos.permission.READ_IMAGEVIDEO', 'ohos.permission.WRITE_IMAGEVIDEO'];
       let permissionRequestResult;
-      let atManager = abilityAccessCtrl.createAtManager();
+      let atManager: abilityAccessCtrl.AtManager = abilityAccessCtrl.createAtManager();
       atManager.requestPermissionsFromUser(this.context, list, (err, result) => {
         if (err) {
           console.error('requestPermissionsFromUserError: ' + JSON.stringify(err));
diff --git a/en/application-dev/file-management/photoAccessHelper-resource-guidelines.md b/en/application-dev/file-management/photoAccessHelper-resource-guidelines.md
index a517b4fb4cb1b6b2cd7711fdb68277292b7c6f7f..1d9a2406ea9416ec02e52dcb9f699807546ed72f 100644
--- a/en/application-dev/file-management/photoAccessHelper-resource-guidelines.md
+++ b/en/application-dev/file-management/photoAccessHelper-resource-guidelines.md
@@ -99,8 +99,8 @@ import dataSharePredicates from '@ohos.data.dataSharePredicates';
 import photoAccessHelper from '@ohos.file.photoAccessHelper';
 
 let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
-let startTime = Date.parse(new Date('2022-06-01').toString()) / 1000; // The value of the start time is the number of seconds elapsed since the Epoch time.
-let endTime = Date.parse(new Date('2023-06-01').toString()) / 1000;  // The value of the end time is the number of seconds elapsed since the Epoch time.
+let startTime: Number = Date.parse(new Date('2022-06-01').toString()) / 1000; // The value of the start time is the number of seconds elapsed since the Epoch time.
+let endTime: Number = Date.parse(new Date('2023-06-01').toString()) / 1000;  // The value of the end time is the number of seconds elapsed since the Epoch time.
 let date_added: photoAccessHelper.PhotoKeys = photoAccessHelper.PhotoKeys.DATE_ADDED;
 predicates.between(date_added, startTime, endTime);
 predicates.orderByDesc(date_added); // Sort the obtained records in descending order.
@@ -152,9 +152,10 @@ Example: Obtain the thumbnail of 720 x 720 of an image.
 ```ts
 import dataSharePredicates from '@ohos.data.dataSharePredicates';
 import photoAccessHelper from '@ohos.file.photoAccessHelper';
+import image from '@ohos.multimedia.image';
 
 let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
-let fetchOptions: dataSharePredicates.FetchOptions = {
+let fetchOptions: photoAccessHelper.FetchOptions = {
   fetchColumns: [],
   predicates: predicates
 };
@@ -163,9 +164,9 @@ try {
   let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await phAccessHelper.getAssets(fetchOptions);
   let fileAsset: photoAccessHelper.PhotoAsset = await fetchResult.getFirstObject();
   console.info('getAssets fileAsset.displayName : ' + fileAsset.displayName);
-  let size = { width: 720, height: 720 };
-  let pixelMap =  await fileAsset.getThumbnail(size);
-  let imageInfo = await pixelMap.getImageInfo()
+  let size: image.Size = { width: 720, height: 720 };
+  let pixelMap: image.PixelMap =  await fileAsset.getThumbnail(size);
+  let imageInfo: image.ImageInfo = await pixelMap.getImageInfo()
   console.info('getThumbnail successful, pixelMap ImageInfo size: ' + JSON.stringify(imageInfo.size));
   fetchResult.close();
 } catch (err) {
@@ -195,12 +196,12 @@ Example: Create an image asset.
 import photoAccessHelper from '@ohos.file.photoAccessHelper';
 
 try {
-  let displayName = 'testPhoto' + Date.now() + '.jpg';
+  let displayName: string = 'testPhoto' + Date.now() + '.jpg';
   let createOption: photoAccessHelper.CreateOptions = {
     subType: photoAccessHelper.PhotoSubtype.DEFAULT
   };
 
-  let fileAsset = await phAccessHelper.createAsset(displayName, createOption);
+  let fileAsset: photoAccessHelper.PhotoAsset = await phAccessHelper.createAsset(displayName, createOption);
   console.info('createAsset successfully, file displayName: ' + fileAsset.displayName);
 } catch (err) {
   console.error('createAsset failed, message = ', err);
@@ -235,7 +236,7 @@ import dataSharePredicates from '@ohos.data.dataSharePredicates';
 import photoAccessHelper from '@ohos.file.photoAccessHelper';
 
 let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
-let fetchOptions: dataSharePredicates.FetchOptions = {
+let fetchOptions: photoAccessHelper.FetchOptions = {
   fetchColumns: ['title'],
   predicates: predicates
 };
@@ -280,7 +281,7 @@ import dataSharePredicates from '@ohos.data.dataSharePredicates';
 import photoAccessHelper from '@ohos.file.photoAccessHelper';
 
 let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
-let fetchOptions: dataSharePredicates.FetchOptions = {
+let fetchOptions: photoAccessHelper.FetchOptions = {
   fetchColumns: [],
   predicates: predicates
 };
diff --git a/en/application-dev/file-management/photoAccessHelper-systemAlbum-guidelines.md b/en/application-dev/file-management/photoAccessHelper-systemAlbum-guidelines.md
index 19c3434cca92143b5ff3fc104a81762c934b9e9b..b6b7b75d098724db75545a560bdda061096e04af 100644
--- a/en/application-dev/file-management/photoAccessHelper-systemAlbum-guidelines.md
+++ b/en/application-dev/file-management/photoAccessHelper-systemAlbum-guidelines.md
@@ -62,16 +62,16 @@ Example: Favorite an image.
 import dataSharePredicates from '@ohos.data.dataSharePredicates';
 import photoAccessHelper from '@ohos.file.photoAccessHelper';
 
-let predicates: dataSharePredicates = new dataSharePredicates.DataSharePredicates();
+let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
 predicates.equalTo(photoAccessHelper.ImageVideoKey.DISPLAY_NAME, 'test.jpg');
-let fetchOptions: dataSharePredicates.FetchOptions = {
+let fetchOptions: photoAccessHelper.FetchOptions = {
   fetchColumns: [],
   predicates: predicates
 };
 
 try {
-  let photoFetchResult: photoAccessHelper.FetchResult<photoAccessHelper.Album> = await phAccessHelper.getAssets(fetchOptions);
-  let fileAsset = await photoFetchResult.getFirstObject();
+  let photoFetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await phAccessHelper.getAssets(fetchOptions);
+  let fileAsset: photoAccessHelper.PhotoAsset = await photoFetchResult.getFirstObject();
   console.info('getAssets fileAsset.displayName : ' + fileAsset.displayName);
   let favoriteState = true;
   await fileAsset.setFavorite(favoriteState);
@@ -102,8 +102,8 @@ Example: Obtain an image from **Favorites**.
 import dataSharePredicates from '@ohos.data.dataSharePredicates';
 import photoAccessHelper from '@ohos.file.photoAccessHelper';
 
-let predicates: dataSharePredicates = new dataSharePredicates.DataSharePredicates();
-let fetchOptions: dataSharePredicates.FetchOptions = {
+let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
+let fetchOptions: photoAccessHelper.FetchOptions = {
   fetchColumns: [],
   predicates: predicates
 };
@@ -113,8 +113,8 @@ try {
   let album: photoAccessHelper.Album = await albumFetchResult.getFirstObject();
   console.info('get favorite Album successfully, albumUri: ' + album.albumUri);
 
-  let photoFetchResult = await album.getAssets(fetchOptions);
-  let fileAsset = await photoFetchResult.getFirstObject();
+  let photoFetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await album.getAssets(fetchOptions);
+  let fileAsset: photoAccessHelper.PhotoAsset = await photoFetchResult.getFirstObject();
   console.info('favorite album getAssets successfully, albumName: ' + fileAsset.displayName);
   photoFetchResult.close();
   albumFetchResult.close();
@@ -145,8 +145,8 @@ Example: Unfavorite an image.
 import dataSharePredicates from '@ohos.data.dataSharePredicates';
 import photoAccessHelper from '@ohos.file.photoAccessHelper';
 
-let predicates: dataSharePredicates = new dataSharePredicates.DataSharePredicates();
-let fetchOptions: dataSharePredicates.FetchOptions = {
+let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
+let fetchOptions: photoAccessHelper.FetchOptions = {
   fetchColumns: [],
   predicates: predicates
 };
@@ -156,8 +156,8 @@ try {
   let album: photoAccessHelper.Album = await albumFetchResult.getFirstObject();
   console.info('get favorite Album successfully, albumUri: ' + album.albumUri);
 
-  let photoFetchResult = await album.getAssets(fetchOptions);
-  let fileAsset = await photoFetchResult.getFirstObject();
+  let photoFetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await album.getAssets(fetchOptions);
+  let fileAsset: photoAccessHelper.PhotoAsset = await photoFetchResult.getFirstObject();
   console.info('favorite album getAssets successfully, albumName: ' + fileAsset.displayName);
   let favoriteState = false;
   await fileAsset.setFavorite(favoriteState);
@@ -221,8 +221,8 @@ Example: Obtain a video in **Videos**.
 import dataSharePredicates from '@ohos.data.dataSharePredicates';
 import photoAccessHelper from '@ohos.file.photoAccessHelper';
 
-let predicates: dataSharePredicates = new dataSharePredicates.DataSharePredicates();
-let fetchOptions: dataSharePredicates.FetchOptions = {
+let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
+let fetchOptions: photoAccessHelper.FetchOptions = {
   fetchColumns: [],
   predicates: predicates
 };
@@ -232,8 +232,8 @@ try {
   let album: photoAccessHelper.Album = await albumFetchResult.getFirstObject();
   console.info('get video Album successfully, albumUri: ' + album.albumUri);
 
-  let videoFetchResult = await album.getAssets(fetchOptions);
-  let fileAsset = await videoFetchResult.getFirstObject();
+  let videoFetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await album.getAssets(fetchOptions);
+  let fileAsset: photoAccessHelper.PhotoAsset = await videoFetchResult.getFirstObject();
   console.info('video album getAssets successfully, albumName: ' + fileAsset.displayName);
   videoFetchResult.close();
   albumFetchResult.close();
@@ -295,8 +295,8 @@ Example: Obtain a media asset from **Screenshots**.
 import dataSharePredicates from '@ohos.data.dataSharePredicates';
 import photoAccessHelper from '@ohos.file.photoAccessHelper';
 
-let predicates: dataSharePredicates = new dataSharePredicates.DataSharePredicates();
-let fetchOptions: dataSharePredicates.FetchOptions = {
+let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
+let fetchOptions: photoAccessHelper.FetchOptions = {
   fetchColumns: [],
   predicates: predicates
 };
@@ -306,8 +306,8 @@ try {
   let album: photoAccessHelper.Album = await albumFetchResult.getFirstObject();
   console.info('get screenshot album successfully, albumUri: ' + album.albumUri);
 
-  let screenshotFetchResult = await album.getAssets(fetchOptions);
-  let fileAsset = await screenshotFetchResult.getFirstObject();
+  let screenshotFetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await album.getAssets(fetchOptions);
+  let fileAsset: photoAccessHelper.PhotoAsset = await screenshotFetchResult.getFirstObject();
   console.info('screenshot album getAssets successfully, albumName: ' + fileAsset.displayName);
   screenshotFetchResult.close();
   albumFetchResult.close();
diff --git a/en/application-dev/file-management/photoAccessHelper-userAlbum-guidelines.md b/en/application-dev/file-management/photoAccessHelper-userAlbum-guidelines.md
index db6c3a8058cef3e921b6ce15c5df09bac0cb6b5f..60d59a4448371c313bec743319910d9b0a3ebf04 100644
--- a/en/application-dev/file-management/photoAccessHelper-userAlbum-guidelines.md
+++ b/en/application-dev/file-management/photoAccessHelper-userAlbum-guidelines.md
@@ -37,8 +37,8 @@ Example: Create a user album.
 import photoAccessHelper from '@ohos.file.photoAccessHelper';
 
 try {
-  let albumName: photoAccessHelper.AlbumName = 'albumName';
-  let album: photoAccessHelper.Album = await phAccessHelper.createAlbum(albumName);
+  let albumName = 'albumName';
+  let album = await phAccessHelper.createAlbum(albumName);
   console.info('createAlbum successfully, album: ' + album.albumName + ' album uri: ' + album.albumUri);
 } catch (err) {
   console.error('createAlbum failed with err: ' + err);
@@ -66,10 +66,10 @@ Example: Obtain the user album named **albumName**.
 import dataSharePredicates from '@ohos.data.dataSharePredicates';
 import photoAccessHelper from '@ohos.file.photoAccessHelper';
 
-let predicates: dataSharePredicates = new dataSharePredicates.DataSharePredicates();
-let albumName: photoAccessHelper = photoAccessHelper.AlbumKey.ALBUM_NAME;
+let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
+let albumName: photoAccessHelper.AlbumKeys  = photoAccessHelper.AlbumKey.ALBUM_NAME;
 predicates.equalTo(albumName, 'albumName');
-let fetchOptions: dataSharePredicates.FetchOptions = {
+let fetchOptions: photoAccessHelper.FetchOptions = {
   fetchColumns: [],
   predicates: predicates
 };
@@ -111,10 +111,10 @@ Example: Rename an album named **albumName**.
 import dataSharePredicates from '@ohos.data.dataSharePredicates';
 import photoAccessHelper from '@ohos.file.photoAccessHelper';
 
-let predicates: dataSharePredicates = new dataSharePredicates.DataSharePredicates();
-let albumName: photoAccessHelper = photoAccessHelper.AlbumKey.ALBUM_NAME;
+let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
+let albumName: photoAccessHelper..AlbumKeys = photoAccessHelper.AlbumKey.ALBUM_NAME;
 predicates.equalTo(albumName, 'albumName');
-let fetchOptions: dataSharePredicates.FetchOptions = {
+let fetchOptions: photoAccessHelper.FetchOptions = {
   fetchColumns: [],
   predicates: predicates
 };
@@ -156,16 +156,16 @@ Example: Add an image to the album **albumName**.
 import dataSharePredicates from '@ohos.data.dataSharePredicates';
 import photoAccessHelper from '@ohos.file.photoAccessHelper';
 
-let albumPredicates: dataSharePredicates = new dataSharePredicates.DataSharePredicates();
-let albumName: photoAccessHelper = photoAccessHelper.AlbumKey.ALBUM_NAME;
+let albumPredicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
+let albumName: photoAccessHelper..AlbumKeys = photoAccessHelper.AlbumKey.ALBUM_NAME;
 albumPredicates.equalTo(albumName, 'albumName');
 let albumFetchOptions: dataSharePredicates.FetchOptions = {
   fetchColumns: [],
   predicates: albumPredicates
 };
 
-let photoPredicates: dataSharePredicates = new dataSharePredicates.DataSharePredicates();
-let photoFetchOptions: dataSharePredicates.FetchOptions = {
+let photoPredicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
+let photoFetchOptions: photoAccessHelper.FetchOptions = {
   fetchColumns: [],
   predicates: photoPredicates
 };
@@ -174,8 +174,8 @@ try {
   let albumFetchResult: photoAccessHelper.FetchResult<photoAccessHelper.Album> = await phAccessHelper.getAlbums(photoAccessHelper.AlbumType.USER, photoAccessHelper.AlbumSubtype.USER_GENERIC, albumFetchOptions);
   let album: photoAccessHelper.Album = await albumFetchResult.getFirstObject();
   console.info('getAlbums successfully, albumName: ' + album.albumName);
-  let photoFetchResult = await phAccessHelper.getAssets(photoFetchOptions);
-  let fileAsset = await photoFetchResult.getFirstObject();
+  let photoFetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await phAccessHelper.getAssets(photoFetchOptions);
+  let fileAsset: photoAccessHelper.PhotoAsset = await photoFetchResult.getFirstObject();
   console.info('getAssets successfully, albumName: ' + fileAsset.displayName);
   await album.addAssets([fileAsset]);
   albumFetchResult.close();
@@ -209,16 +209,16 @@ Example: Obtain an image in the user album **albumName**.
 import dataSharePredicates from '@ohos.data.dataSharePredicates';
 import photoAccessHelper from '@ohos.file.photoAccessHelper';
 
-let albumPredicates: dataSharePredicates = new dataSharePredicates.DataSharePredicates();
-let albumName: photoAccessHelper = photoAccessHelper.AlbumKey.ALBUM_NAME;
+let albumPredicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
+let albumName: photoAccessHelper.AlbumKeys = photoAccessHelper.AlbumKey.ALBUM_NAME;
 albumPredicates.equalTo(albumName, 'albumName');
-let albumFetchOptions: dataSharePredicates.FetchOptions = {
+let albumFetchOptions: photoAccessHelper.FetchOptions = {
   fetchColumns: [],
   predicates: albumPredicates
 };
 
-let photoPredicates: dataSharePredicates = new dataSharePredicates.DataSharePredicates();
-let photoFetchOptions: dataSharePredicates.FetchOptions = {
+let photoPredicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
+let photoFetchOptions: photoAccessHelper.FetchOptions = {
   fetchColumns: [],
   predicates: photoPredicates
 };
@@ -227,8 +227,8 @@ try {
   let albumFetchResult: photoAccessHelper.FetchResult<photoAccessHelper.Album> = await phAccessHelper.getAlbums(photoAccessHelper.AlbumType.USER, photoAccessHelper.AlbumSubtype.USER_GENERIC, albumFetchOptions);
   let album: photoAccessHelper.Album = await albumFetchResult.getFirstObject();
   console.info('getAlbums successfully, albumName: ' + album.albumName);
-  let photoFetchResult = await album.getAssets(photoFetchOptions);
-  let fileAsset = await photoFetchResult.getFirstObject();
+  let photoFetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await album.getAssets(photoFetchOptions);
+  let fileAsset: photoAccessHelper.PhotoAsset = await photoFetchResult.getFirstObject();
   console.info('album getAssets successfully, albumName: ' + fileAsset.displayName);
   albumFetchResult.close();
   photoFetchResult.close();
@@ -264,16 +264,16 @@ Example: Remove an image from the album named **albumName**.
 import dataSharePredicates from '@ohos.data.dataSharePredicates';
 import photoAccessHelper from '@ohos.file.photoAccessHelper';
 
-let albumPredicates: dataSharePredicates = new dataSharePredicates.DataSharePredicates();
-let albumName: photoAccessHelper = photoAccessHelper.AlbumKey.ALBUM_NAME;
+let albumPredicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
+let albumName: photoAccessHelper.AlbumKeys = photoAccessHelper.AlbumKey.ALBUM_NAME;
 albumPredicates.equalTo(albumName, 'albumName');
-let albumFetchOptions: dataSharePredicates.FetchOptions = {
+let albumFetchOptions: photoAccessHelper.FetchOptions = {
   fetchColumns: [],
   predicates: albumPredicates
 };
 
-let photoPredicates: dataSharePredicates = new dataSharePredicates.DataSharePredicates();
-let photoFetchOptions: dataSharePredicates.FetchOptions = {
+let photoPredicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
+let photoFetchOptions: photoAccessHelper.FetchOptions = {
   fetchColumns: [],
   predicates: photoPredicates
 };
@@ -282,8 +282,8 @@ try {
   let albumFetchResult: photoAccessHelper.FetchResult<photoAccessHelper.Album> = await phAccessHelper.getAlbums(photoAccessHelper.AlbumType.USER, photoAccessHelper.AlbumSubtype.USER_GENERIC, albumFetchOptions);
   let album: photoAccessHelper.Album = await albumFetchResult.getFirstObject();
   console.info('getAlbums successfully, albumName: ' + album.albumName);
-  let photoFetchResult = await album.getAssets(photoFetchOptions);
-  let fileAsset = await photoFetchResult.getFirstObject();
+  let photoFetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await album.getAssets(photoFetchOptions);
+  let fileAsset: photoAccessHelper.PhotoAsset = await photoFetchResult.getFirstObject();
   console.info('album getAssets successfully, albumName: ' + fileAsset.displayName);
   await album.removeAssets([fileAsset]);
   albumFetchResult.close();
@@ -315,10 +315,10 @@ Example: Delete a user album named **albumName**.
 import dataSharePredicates from '@ohos.data.dataSharePredicates';
 import photoAccessHelper from '@ohos.file.photoAccessHelper';
 
-let predicates: dataSharePredicates = new dataSharePredicates.DataSharePredicates();
-let albumName: photoAccessHelper.AlbumName = photoAccessHelper.AlbumKey.ALBUM_NAME;
+let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
+let albumName: photoAccessHelper.AlbumKeys = photoAccessHelper.AlbumKey.ALBUM_NAME;
 predicates.equalTo(albumName, '%albumName%');
-let fetchOptions: dataSharePredicates.FetchOptions = {
+let fetchOptions: photoAccessHelper.FetchOptions = {
   fetchColumns: [],
   predicates: predicates
 };
diff --git a/zh-cn/application-dev/file-management/photoAccessHelper-notify-guidelines.md b/zh-cn/application-dev/file-management/photoAccessHelper-notify-guidelines.md
index 9e4e15b41f6b00a9f2b5715a2b362efcfcad44a2..a6568e442d847946af56ba3a189f0010c391569c 100644
--- a/zh-cn/application-dev/file-management/photoAccessHelper-notify-guidelines.md
+++ b/zh-cn/application-dev/file-management/photoAccessHelper-notify-guidelines.md
@@ -33,20 +33,21 @@ photoAccessHelper提供监听媒体资源变更的接口，供开发者对指定
 
 ```ts
 import dataSharePredicates from '@ohos.data.dataSharePredicates';
+import photoAccessHelper from '@ohos.file.photoAccessHelper';
 
-let predicates = new dataSharePredicates.DataSharePredicates();
+let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
 predicates.equalTo(photoAccessHelper.ImageVideoKey.DISPLAY_NAME, 'test.jpg');
-let fetchOptions = {
+let fetchOptions: photoAccessHelper.FetchOptions = {
   fetchColumns: [],
   predicates: predicates
 };
 
 try {
-  let fetchResult = await phAccessHelper.getAssets(fetchOptions);
-  let fileAsset = await fetchResult.getFirstObject();
+  let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await phAccessHelper.getAssets(fetchOptions);
+  let fileAsset: photoAccessHelper.PhotoAsset = await fetchResult.getFirstObject();
   console.info('getAssets fileAsset.uri : ' + fileAsset.uri);
 
-  let onCallback = (changeData) => {
+  let onCallback = (changeData:dataSharePredicates.ChangeData) => {
     console.info('onCallback successfully, changData: ' + JSON.stringify(changeData));
   }
   phAccessHelper.registerChange(fileAsset.uri, false, onCallback);
@@ -77,21 +78,22 @@ try {
 
 ```ts
 import dataSharePredicates from '@ohos.data.dataSharePredicates';
+import photoAccessHelper from '@ohos.file.photoAccessHelper';
 
-let predicates = new dataSharePredicates.DataSharePredicates();
-let albumName = photoAccessHelper.AlbumKey.ALBUM_NAME;
+let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
+let albumName: photoAccessHelper.AlbumKeys = photoAccessHelper.AlbumKey.ALBUM_NAME;
 predicates.equalTo(albumName, 'albumName');
-let fetchOptions = {
+let fetchOptions: dataSharePredicates.FetchOptions = {
   fetchColumns: [],
   predicates: predicates
 };
 
 try {
-  let fetchResult = await phAccessHelper.getAlbums(photoAccessHelper.AlbumType.USER, photoAccessHelper.AlbumSubtype.USER_GENERIC, fetchOptions);
-  let album = await fetchResult.getFirstObject();
+  let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.Album> = await phAccessHelper.getAlbums(photoAccessHelper.AlbumType.USER, photoAccessHelper.AlbumSubtype.USER_GENERIC, fetchOptions);
+  let album: photoAccessHelper.Album = await fetchResult.getFirstObject();
   console.info('getAlbums successfullyfully, albumName: ' + album.albumUri);
 
-  let onCallback = (changeData) => {
+  let onCallback = (changeData: photoAccessHelper.ChangeData) => {
     console.info('onCallback successfully, changData: ' + JSON.stringify(changeData));
   }
   phAccessHelper.registerChange(album.albumUri, false, onCallback);
@@ -127,21 +129,22 @@ try {
 
 ```ts
 import dataSharePredicates from '@ohos.data.dataSharePredicates';
+import photoAccessHelper from '@ohos.file.photoAccessHelper';
 
-let onCallback = (changeData) => {
+let onCallback = (changeData:  dataSharePredicates.ChangeData) => {
   console.info('onCallback successfully, changData: ' + JSON.stringify(changeData));
 }
 phAccessHelper.registerChange(photoAccessHelper.DefaultChangeUri.DEFAULT_PHOTO_URI, true, onCallback);
 
-let predicates = new dataSharePredicates.DataSharePredicates();
-let fetchOptions = {
+let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
+let fetchOptions: photoAccessHelper.FetchOptions = {
   fetchColumns: [],
   predicates: predicates
 };
 
 try {
-  let fetchResult = await phAccessHelper.getAssets(fetchOptions);
-  let fileAsset = await fetchResult.getFirstObject();
+  let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await phAccessHelper.getAssets(fetchOptions);
+  let fileAsset: photoAccessHelper.PhotoAsset = await fetchResult.getFirstObject();
   console.info('getAssets fileAsset.uri : ' + fileAsset.uri);
   await fileAsset.favorite(true);
   fetchResult.close();
@@ -169,23 +172,24 @@ try {
 
 ```ts
 import dataSharePredicates from '@ohos.data.dataSharePredicates';
+import photoAccessHelper from '@ohos.file.photoAccessHelper';
 
-let predicates = new dataSharePredicates.DataSharePredicates();
+let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
 predicates.equalTo(photoAccessHelper.ImageVideoKey.DISPLAY_NAME, 'test.jpg');
-let fetchOptions = {
+let fetchOptions: photoAccessHelper.FetchOptions = {
   fetchColumns: [],
   predicates: predicates
 };
 
 try {
-  let fetchResult = await phAccessHelper.getAssets(fetchOptions);
-  let fileAsset = await fetchResult.getFirstObject();
+  let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await phAccessHelper.getAssets(fetchOptions);
+  let fileAsset: photoAccessHelper.PhotoAsset = await fetchResult.getFirstObject();
   console.info('getAssets fileAsset.uri : ' + fileAsset.uri);
 
-  let onCallback1 = (changeData) => {
+  let onCallback1 = (changeData: photoAccessHelper.ChangeData) => {
     console.info('onCallback1, changData: ' + JSON.stringify(changeData));
   }
-  let onCallback2 = (changeData) => {
+  let onCallback2 = (changeData: photoAccessHelper.ChangeData) => {
     console.info('onCallback2, changData: ' + JSON.stringify(changeData));
   }
   phAccessHelper.registerChange(fileAsset.uri, false, onCallback1);
diff --git a/zh-cn/application-dev/file-management/photoAccessHelper-overview.md b/zh-cn/application-dev/file-management/photoAccessHelper-overview.md
index 6b7f718a3c71276d0fde87f145b9aa4979badc03..9ac3deb5f0c76597d9e78415669c40e7d0168bb1 100644
--- a/zh-cn/application-dev/file-management/photoAccessHelper-overview.md
+++ b/zh-cn/application-dev/file-management/photoAccessHelper-overview.md
@@ -49,7 +49,7 @@ import photoAccessHelper from '@ohos.file.photoAccessHelper';
 
 // 此处获取的phAccessHelper实例为全局对象，后续文档中使用到的地方默认为使用此处获取的对象，如未添加此段代码报未定义的错误请自行添加。
 const context = getContext(this);
-let phAccessHelper = photoAccessHelper.getPhotoAccessHelper(context);
+let phAccessHelper: photoAccessHelper.PhotoAccessHelper = photoAccessHelper.getPhotoAccessHelper(context);
 ```
 
 ## 申请相册管理模块功能相关权限
@@ -108,7 +108,7 @@ let phAccessHelper = photoAccessHelper.getPhotoAccessHelper(context);
     onWindowStageCreate(windowStage) {
       let list : Array<Permissions> = ['ohos.permission.READ_IMAGEVIDEO', 'ohos.permission.WRITE_IMAGEVIDEO'];
       let permissionRequestResult;
-      let atManager = abilityAccessCtrl.createAtManager();
+      let atManager: abilityAccessCtrl.AtManager = abilityAccessCtrl.createAtManager();
       atManager.requestPermissionsFromUser(this.context, list, (err, result) => {
         if (err) {
           console.error('requestPermissionsFromUserError: ' + JSON.stringify(err));
diff --git a/zh-cn/application-dev/file-management/photoAccessHelper-resource-guidelines.md b/zh-cn/application-dev/file-management/photoAccessHelper-resource-guidelines.md
index edc9d8695da6154a9ba8136f98ba87cb8bf5cb3d..a728ea8e283eebd21343551c0030731692ec5069 100644
--- a/zh-cn/application-dev/file-management/photoAccessHelper-resource-guidelines.md
+++ b/zh-cn/application-dev/file-management/photoAccessHelper-resource-guidelines.md
@@ -33,10 +33,11 @@
 
 ```ts
 import dataSharePredicates from '@ohos.data.dataSharePredicates';
+import photoAccessHelper from '@ohos.file.photoAccessHelper';
 
-let predicates = new dataSharePredicates.DataSharePredicates();
+let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
 predicates.equalTo(photoAccessHelper.PhotoKeys.DISPLAY_NAME, 'test.jpg');
-let fetchOptions = {
+let fetchOptions: photoAccessHelper.FetchOptions = {
   fetchColumns: [],
   predicates: predicates
 };
@@ -45,9 +46,11 @@ let fetchOptions = {
 调用PhotoAccessHelper.getAssets接口获取图片资源。
 
 ```ts
+import photoAccessHelper from '@ohos.file.photoAccessHelper';
+
 try {
-  let fetchResult = await phAccessHelper.getAssets(fetchOptions);
-  let fileAsset = await fetchResult.getFirstObject();
+  let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await phAccessHelper.getAssets(fetchOptions);
+  let fileAsset: photoAccessHelper.PhotoAsset = await fetchResult.getFirstObject();
   console.info('getAssets fileAsset.displayName : ' + fileAsset.displayName);
   fetchResult.close();
 } catch (err) {
@@ -61,10 +64,11 @@ try {
 
 ```ts
 import dataSharePredicates from '@ohos.data.dataSharePredicates';
+import photoAccessHelper from '@ohos.file.photoAccessHelper';
 
-let predicates = new dataSharePredicates.DataSharePredicates();
+let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
 predicates.equalTo(photoAccessHelper.PhotoKeys.URI, 'file://media/Photo/1');
-let fetchOptions = {
+let fetchOptions: photoAccessHelper.FetchOptions = {
   fetchColumns: [],
   predicates: predicates
 };
@@ -73,9 +77,11 @@ let fetchOptions = {
 调用PhotoAccessHelper.getAssets接口获取图片资源。
 
 ```ts
+import photoAccessHelper from '@ohos.file.photoAccessHelper';
+
 try {
-  let fetchResult = await phAccessHelper.getAssets(fetchOptions);
-  let fileAsset = await fetchResult.getFirstObject();
+  let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await phAccessHelper.getAssets(fetchOptions);
+  let fileAsset: photoAccessHelper.PhotoAsset = await fetchResult.getFirstObject();
   console.info('getAssets fileAsset.uri : ' + fileAsset.uri);
   fetchResult.close();
 } catch (err) {
@@ -90,15 +96,16 @@ try {
 
 ```ts
 import dataSharePredicates from '@ohos.data.dataSharePredicates';
+import photoAccessHelper from '@ohos.file.photoAccessHelper';
 
-let predicates = new dataSharePredicates.DataSharePredicates();
-let startTime = Date.parse(new Date('2022-06-01').toString()) / 1000; // 查询起始时间距1970年1月1日的秒数值。
-let endTime = Date.parse(new Date('2023-06-01').toString()) / 1000; // 查询结束时间距1970年1月1日的秒数值。
-let date_added = photoAccessHelper.PhotoKeys.DATE_ADDED;
+let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
+let startTime: Number = Date.parse(new Date('2022-06-01').toString()) / 1000; // The value of the start time is the number of seconds elapsed since the Epoch time.
+let endTime: Number = Date.parse(new Date('2023-06-01').toString()) / 1000;  // The value of the end time is the number of seconds elapsed since the Epoch time.
+let date_added: photoAccessHelper.PhotoKeys = photoAccessHelper.PhotoKeys.DATE_ADDED;
 predicates.between(date_added, startTime, endTime);
-predicates.orderByDesc(date_added); // 查询结果按照降序排序。
-let fetchOptions = {
-  fetchColumns: [date_added], // date_added属性不属于默认查询列，需要自行添加。
+predicates.orderByDesc(date_added); // Sort the obtained records in descending order.
+let fetchOptions: photoAccessHelper.FetchOptions = {
+  fetchColumns: [date_added], // The date_added attribute is not a default option and needs to be added.
   predicates: predicates
 };
 ```
@@ -106,10 +113,12 @@ let fetchOptions = {
 调用PhotoAccessHelper.getAssets接口获取图片资源。
 
 ```ts
+import photoAccessHelper from '@ohos.file.photoAccessHelper';
+
 try {
-  let fetchResult = await phAccessHelper.getAssets(fetchOptions);
+  let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await phAccessHelper.getAssets(fetchOptions);
   console.info('getAssets count: ' + fetchResult.getCount());
-  let fileAsset = await fetchResult.getFirstObject();
+  let fileAsset: photoAccessHelper.PhotoAsset = await fetchResult.getFirstObject();
   console.info('getAssets fileAsset.displayName : ' + fileAsset.displayName);
   fetchResult.close();
 } catch (err) {
@@ -142,20 +151,22 @@ try {
 
 ```ts
 import dataSharePredicates from '@ohos.data.dataSharePredicates';
+import photoAccessHelper from '@ohos.file.photoAccessHelper';
+import image from '@ohos.multimedia.image';
 
-let predicates = new dataSharePredicates.DataSharePredicates();
-let fetchOptions = {
+let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
+let fetchOptions: photoAccessHelper.FetchOptions = {
   fetchColumns: [],
   predicates: predicates
 };
 
 try {
-  let fetchResult = await phAccessHelper.getAssets(fetchOptions);
-  let fileAsset = await fetchResult.getFirstObject();
+  let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await phAccessHelper.getAssets(fetchOptions);
+  let fileAsset: photoAccessHelper.PhotoAsset = await fetchResult.getFirstObject();
   console.info('getAssets fileAsset.displayName : ' + fileAsset.displayName);
-  let size = { width: 720, height: 720 };
-  let pixelMap =  await fileAsset.getThumbnail(size);
-  let imageInfo = await pixelMap.getImageInfo()
+  let size: image.Size = { width: 720, height: 720 };
+  let pixelMap: image.PixelMap =  await fileAsset.getThumbnail(size);
+  let imageInfo: image.ImageInfo = await pixelMap.getImageInfo()
   console.info('getThumbnail successful, pixelMap ImageInfo size: ' + JSON.stringify(imageInfo.size));
   fetchResult.close();
 } catch (err) {
@@ -182,13 +193,15 @@ try {
 2. 调用createAsset接口创建图片资源。
 
 ```ts
+import photoAccessHelper from '@ohos.file.photoAccessHelper';
+
 try {
-  let displayName = 'testPhoto' + Date.now() + '.jpg';
-  let createOption = {
+  let displayName: string = 'testPhoto' + Date.now() + '.jpg';
+  let createOption: photoAccessHelper.CreateOptions = {
     subType: photoAccessHelper.PhotoSubtype.DEFAULT
   };
 
-  let fileAsset = await phAccessHelper.createAsset(displayName, createOption);
+  let fileAsset: photoAccessHelper.photoAsset = await phAccessHelper.createAsset(displayName, createOption);
   console.info('createAsset successfully, file displayName: ' + fileAsset.displayName);
 } catch (err) {
   console.error('createAsset failed, message = ', err);
@@ -220,19 +233,20 @@ try {
 
 ```ts
 import dataSharePredicates from '@ohos.data.dataSharePredicates';
+import photoAccessHelper from '@ohos.file.photoAccessHelper';
 
-let predicates = new dataSharePredicates.DataSharePredicates();
-let fetchOptions = {
+let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
+let fetchOptions: photoAccessHelper.FetchOptions = {
   fetchColumns: ['title'],
   predicates: predicates
 };
 let newTitle = 'newTestPhoto';
 
 try {
-  let fetchResult = await phAccessHelper.getAssets(fetchOptions);
-  let fileAsset = await fetchResult.getFirstObject();
-  let title = photoAccessHelper.PhotoKeys.TITLE;
-  let fileAssetTitle = fileAsset.get(title);
+  let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await phAccessHelper.getAssets(fetchOptions);
+  let fileAsset: photoAccessHelper.PhotoAsset = await fetchResult.getFirstObject();
+  let title: photoAccessHelper.PhotoKeys = photoAccessHelper.PhotoKeys.TITLE;
+  let fileAssetTitle: photoAccessHelper.MemberType = fileAsset.get(title);
   console.info('getAssets fileAsset.title : ' + fileAssetTitle);
   fileAsset.set(title, newTitle);
   await fileAsset.commitModify();
@@ -264,16 +278,17 @@ try {
 
 ```ts
 import dataSharePredicates from '@ohos.data.dataSharePredicates';
+import photoAccessHelper from '@ohos.file.photoAccessHelper';
 
-let predicates = new dataSharePredicates.DataSharePredicates();
-let fetchOptions = {
+let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
+let fetchOptions: photoAccessHelper.FetchOptions = {
   fetchColumns: [],
   predicates: predicates
 };
 
 try {
-  let fetchResult = await phAccessHelper.getAssets(fetchOptions);
-  let fileAsset = await fetchResult.getFirstObject();
+  let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await phAccessHelper.getAssets(fetchOptions);
+  let fileAsset: photoAccessHelper.PhotoAsset = await fetchResult.getFirstObject();
   console.info('getAssets fileAsset.uri : ' + fileAsset.uri);
   await phAccessHelper.deleteAssets([fileAsset.uri]);
   fetchResult.close();
diff --git a/zh-cn/application-dev/file-management/photoAccessHelper-systemAlbum-guidelines.md b/zh-cn/application-dev/file-management/photoAccessHelper-systemAlbum-guidelines.md
index c28fa585240c448563b44c15f4e91093731fe4c5..11fdee073158b8bddb39d5c8736ef63cad4e37a1 100644
--- a/zh-cn/application-dev/file-management/photoAccessHelper-systemAlbum-guidelines.md
+++ b/zh-cn/application-dev/file-management/photoAccessHelper-systemAlbum-guidelines.md
@@ -29,9 +29,11 @@ photoAccessHelper仅提供开发者对收藏夹、视频相册、截屏和录屏
 2. 调用getAlbums接口获取收藏夹对象。
 
 ```ts
+import photoAccessHelper from '@ohos.file.photoAccessHelper';
+
 try {
-  let fetchResult = await phAccessHelper.getAlbums(photoAccessHelper.AlbumType.SYSTEM, photoAccessHelper.AlbumSubtype.FAVORITE);
-  let album = await fetchResult.getFirstObject();
+  let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.Album> = await phAccessHelper.getAlbums(photoAccessHelper.AlbumType.SYSTEM, photoAccessHelper.AlbumSubtype.FAVORITE);
+  let album: photoAccessHelper.Album = await fetchResult.getFirstObject();
   console.info('get favorite Album successfully, albumUri: ' + album.albumUri);
   fetchResult.close();
 } catch (err) {
@@ -58,17 +60,18 @@ try {
 
 ```ts
 import dataSharePredicates from '@ohos.data.dataSharePredicates';
+import photoAccessHelper from '@ohos.file.photoAccessHelper';
 
-let predicates = new dataSharePredicates.DataSharePredicates();
+let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
 predicates.equalTo(photoAccessHelper.ImageVideoKey.DISPLAY_NAME, 'test.jpg');
-let fetchOptions = {
+let fetchOptions: photoAccessHelper.FetchOptions = {
   fetchColumns: [],
   predicates: predicates
 };
 
 try {
-  let photoFetchResult = await phAccessHelper.getAssets(fetchOptions);
-  let fileAsset = await photoFetchResult.getFirstObject();
+  let photoFetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await phAccessHelper.getAssets(fetchOptions);
+  let fileAsset: photoAccessHelper.PhotoAsset = await photoFetchResult.getFirstObject();
   console.info('getAssets fileAsset.displayName : ' + fileAsset.displayName);
   let favoriteState = true;
   await fileAsset.setFavorite(favoriteState);
@@ -97,20 +100,21 @@ try {
 
 ```ts
 import dataSharePredicates from '@ohos.data.dataSharePredicates';
+import photoAccessHelper from '@ohos.file.photoAccessHelper';
 
-let predicates = new dataSharePredicates.DataSharePredicates();
-let fetchOptions = {
+let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
+let fetchOptions: photoAccessHelper.FetchOptions = {
   fetchColumns: [],
   predicates: predicates
 };
 
 try {
-  let albumFetchResult = await phAccessHelper.getAlbums(photoAccessHelper.AlbumType.SYSTEM, photoAccessHelper.AlbumSubtype.FAVORITE);
-  let album = await albumFetchResult.getFirstObject();
+  let albumFetchResult: photoAccessHelper.FetchResult<photoAccessHelper.Album> = await phAccessHelper.getAlbums(photoAccessHelper.AlbumType.SYSTEM, photoAccessHelper.AlbumSubtype.FAVORITE);
+  let album: photoAccessHelper.Album = await albumFetchResult.getFirstObject();
   console.info('get favorite Album successfully, albumUri: ' + album.albumUri);
 
-  let photoFetchResult = await album.getAssets(fetchOptions);
-  let fileAsset = await photoFetchResult.getFirstObject();
+  let photoFetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await album.getAssets(fetchOptions);
+  let fileAsset: photoAccessHelper.PhotoAsset = await photoFetchResult.getFirstObject();
   console.info('favorite album getAssets successfully, albumName: ' + fileAsset.displayName);
   photoFetchResult.close();
   albumFetchResult.close();
@@ -139,20 +143,21 @@ try {
 
 ```ts
 import dataSharePredicates from '@ohos.data.dataSharePredicates';
+import photoAccessHelper from '@ohos.file.photoAccessHelper';
 
-let predicates = new dataSharePredicates.DataSharePredicates();
-let fetchOptions = {
+let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
+let fetchOptions: photoAccessHelper.FetchOptions = {
   fetchColumns: [],
   predicates: predicates
 };
 
 try {
-  let albumFetchResult = await phAccessHelper.getAlbums(photoAccessHelper.AlbumType.SYSTEM, photoAccessHelper.AlbumSubtype.FAVORITE);
-  let album = await albumFetchResult.getFirstObject();
+  let albumFetchResult: photoAccessHelper.FetchResult<photoAccessHelper.Album> = await phAccessHelper.getAlbums(photoAccessHelper.AlbumType.SYSTEM, photoAccessHelper.AlbumSubtype.FAVORITE);
+  let album: photoAccessHelper.Album = await albumFetchResult.getFirstObject();
   console.info('get favorite Album successfully, albumUri: ' + album.albumUri);
 
-  let photoFetchResult = await album.getAssets(fetchOptions);
-  let fileAsset = await photoFetchResult.getFirstObject();
+  let photoFetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await album.getAssets(fetchOptions);
+  let fileAsset: photoAccessHelper.PhotoAsset = await photoFetchResult.getFirstObject();
   console.info('favorite album getAssets successfully, albumName: ' + fileAsset.displayName);
   let favoriteState = false;
   await fileAsset.setFavorite(favoriteState);
@@ -182,9 +187,11 @@ try {
 2. 调用getAlbums接口获取视频相册。
 
 ```ts
+import photoAccessHelper from '@ohos.file.photoAccessHelper';
+
 try {
-  let fetchResult = await phAccessHelper.getAlbums(photoAccessHelper.AlbumType.SYSTEM, photoAccessHelper.AlbumSubtype.VIDEO);
-  let album = await fetchResult.getFirstObject();
+  let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.Album> = await phAccessHelper.getAlbums(photoAccessHelper.AlbumType.SYSTEM, photoAccessHelper.AlbumSubtype.VIDEO);
+  let album: photoAccessHelper.Album = await fetchResult.getFirstObject();
   console.info('get video Album successfully, albumUri: ' + album.albumUri);
   fetchResult.close();
 } catch (err) {
@@ -212,20 +219,21 @@ try {
 
 ```ts
 import dataSharePredicates from '@ohos.data.dataSharePredicates';
+import photoAccessHelper from '@ohos.file.photoAccessHelper';
 
-let predicates = new dataSharePredicates.DataSharePredicates();
-let fetchOptions = {
+let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
+let fetchOptions: photoAccessHelper.FetchOptions = {
   fetchColumns: [],
   predicates: predicates
 };
 
 try {
-  let albumFetchResult = await phAccessHelper.getAlbums(photoAccessHelper.AlbumType.SYSTEM, photoAccessHelper.AlbumSubtype.VIDEO);
-  let album = await albumFetchResult.getFirstObject();
+  let albumFetchResult: photoAccessHelper.FetchResult<photoAccessHelper.Album> = await phAccessHelper.getAlbums(photoAccessHelper.AlbumType.SYSTEM, photoAccessHelper.AlbumSubtype.VIDEO);
+  let album: photoAccessHelper.Album = await albumFetchResult.getFirstObject();
   console.info('get video Album successfully, albumUri: ' + album.albumUri);
 
-  let videoFetchResult = await album.getAssets(fetchOptions);
-  let fileAsset = await videoFetchResult.getFirstObject();
+  let videoFetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await album.getAssets(fetchOptions);
+  let fileAsset: photoAccessHelper.PhotoAsset = await videoFetchResult.getFirstObject();
   console.info('video album getAssets successfully, albumName: ' + fileAsset.displayName);
   videoFetchResult.close();
   albumFetchResult.close();
@@ -253,9 +261,11 @@ try {
 2. 调用getAlbums接口获取截屏和录屏相册。
 
 ```ts
+import photoAccessHelper from '@ohos.file.photoAccessHelper';
+
 try {
-  let fetchResult = await phAccessHelper.getAlbums(photoAccessHelper.AlbumType.SYSTEM, photoAccessHelper.AlbumSubtype.SCREENSHOT);
-  let album = await fetchResult.getFirstObject();
+  let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.Album> = await phAccessHelper.getAlbums(photoAccessHelper.AlbumType.SYSTEM, photoAccessHelper.AlbumSubtype.SCREENSHOT);
+  let album: photoAccessHelper.Album = await fetchResult.getFirstObject();
   console.info('get screenshot Album successfully, albumUri: ' + album.albumUri);
   fetchResult.close();
 } catch (err) {
@@ -283,20 +293,21 @@ try {
 
 ```ts
 import dataSharePredicates from '@ohos.data.dataSharePredicates';
+import photoAccessHelper from '@ohos.file.photoAccessHelper';
 
-let predicates = new dataSharePredicates.DataSharePredicates();
-let fetchOptions = {
+let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
+let fetchOptions: photoAccessHelper.FetchOptions = {
   fetchColumns: [],
   predicates: predicates
 };
 
 try {
-  let albumFetchResult = await phAccessHelper.getAlbums(photoAccessHelper.AlbumType.SYSTEM, photoAccessHelper.AlbumSubtype.SCREENSHOT);
-  let album = await albumFetchResult.getFirstObject();
+  let albumFetchResult: photoAccessHelper.FetchResult<photoAccessHelper.Album> = await phAccessHelper.getAlbums(photoAccessHelper.AlbumType.SYSTEM, photoAccessHelper.AlbumSubtype.SCREENSHOT);
+  let album: photoAccessHelper.Album = await albumFetchResult.getFirstObject();
   console.info('get screenshot album successfully, albumUri: ' + album.albumUri);
 
-  let screenshotFetchResult = await album.getAssets(fetchOptions);
-  let fileAsset = await screenshotFetchResult.getFirstObject();
+  let screenshotFetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await album.getAssets(fetchOptions);
+  let fileAsset: photoAccessHelper.PhotoAsset = await screenshotFetchResult.getFirstObject();
   console.info('screenshot album getAssets successfully, albumName: ' + fileAsset.displayName);
   screenshotFetchResult.close();
   albumFetchResult.close();
diff --git a/zh-cn/application-dev/file-management/photoAccessHelper-userAlbum-guidelines.md b/zh-cn/application-dev/file-management/photoAccessHelper-userAlbum-guidelines.md
index 475f76b615abc96cfe420f356c7d543c5a724ddf..1480b71b26ccde6e849a80f2f9fa8c952846e82b 100644
--- a/zh-cn/application-dev/file-management/photoAccessHelper-userAlbum-guidelines.md
+++ b/zh-cn/application-dev/file-management/photoAccessHelper-userAlbum-guidelines.md
@@ -34,9 +34,11 @@ photoAccessHelper提供用户相册相关的接口，供开发者创建、删除
 2. 调用createAlbum接口创建相册。
 
 ```ts
+import photoAccessHelper from '@ohos.file.photoAccessHelper';
+
 try {
-  let albumName = 'albumName';
-  let album = await phAccessHelper.createAlbum(albumName);
+  let albumName: photoAccessHelper.AlbumName = 'albumName';
+  let album: photoAccessHelper.Album = await phAccessHelper.createAlbum(albumName);
   console.info('createAlbum successfully, album: ' + album.albumName + ' album uri: ' + album.albumUri);
 } catch (err) {
   console.error('createAlbum failed with err: ' + err);
@@ -62,18 +64,19 @@ try {
 
 ```ts
 import dataSharePredicates from '@ohos.data.dataSharePredicates';
+import photoAccessHelper from '@ohos.file.photoAccessHelper';
 
-let predicates = new dataSharePredicates.DataSharePredicates();
-let albumName = photoAccessHelper.AlbumKey.ALBUM_NAME;
+let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
+let albumName: photoAccessHelper = photoAccessHelper.AlbumKey.ALBUM_NAME;
 predicates.equalTo(albumName, 'albumName');
-let fetchOptions = {
+let fetchOptions: photoAccessHelper.FetchOptions = {
   fetchColumns: [],
   predicates: predicates
 };
 
 try {
-  let fetchResult = await phAccessHelper.getAlbums(photoAccessHelper.AlbumType.USER, photoAccessHelper.AlbumSubtype.USER_GENERIC, fetchOptions);
-  let album = await fetchResult.getFirstObject();
+  let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.Album> = await phAccessHelper.getAlbums(photoAccessHelper.AlbumType.USER, photoAccessHelper.AlbumSubtype.USER_GENERIC, fetchOptions);
+  let album: photoAccessHelper.Album = await fetchResult.getFirstObject();
   console.info('getAlbums successfully, albumName: ' + album.albumName);
   fetchResult.close();
 } catch (err) {
@@ -108,18 +111,19 @@ try {
 
 ```ts
 import dataSharePredicates from '@ohos.data.dataSharePredicates';
+import photoAccessHelper from '@ohos.file.photoAccessHelper';
 
-let predicates = new dataSharePredicates.DataSharePredicates();
-let albumName = photoAccessHelper.AlbumKey.ALBUM_NAME;
+let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
+let albumName: photoAccessHelper = photoAccessHelper.AlbumKey.ALBUM_NAME;
 predicates.equalTo(albumName, 'albumName');
-let fetchOptions = {
+let fetchOptions: photoAccessHelper.FetchOptions = {
   fetchColumns: [],
   predicates: predicates
 };
 
 try {
-  let fetchResult = await phAccessHelper.getAlbums(photoAccessHelper.AlbumType.USER, photoAccessHelper.AlbumSubtype.USER_GENERIC, fetchOptions);
-  let album = await fetchResult.getFirstObject();
+  let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.Album> = await phAccessHelper.getAlbums(photoAccessHelper.AlbumType.USER, photoAccessHelper.AlbumSubtype.USER_GENERIC, fetchOptions);
+  let album: photoAccessHelper.Album = await fetchResult.getFirstObject();
   console.info('getAlbums successfully, albumName: ' + album.albumName);
   album.albumName = 'newAlbumName';
   await album.commitModify();
@@ -152,24 +156,25 @@ try {
 
 ```ts
 import dataSharePredicates from '@ohos.data.dataSharePredicates';
+import photoAccessHelper from '@ohos.file.photoAccessHelper';
 
-let albumPredicates = new dataSharePredicates.DataSharePredicates();
-let albumName = photoAccessHelper.AlbumKey.ALBUM_NAME;
+let albumPredicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
+let albumName: photoAccessHelper = photoAccessHelper.AlbumKey.ALBUM_NAME;
 albumPredicates.equalTo(albumName, 'albumName');
-let albumFetchOptions = {
+let albumFetchOptions: dataSharePredicates.FetchOptions = {
   fetchColumns: [],
   predicates: albumPredicates
 };
 
-let photoPredicates = new dataSharePredicates.DataSharePredicates();
-let photoFetchOptions = {
+let photoPredicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
+let photoFetchOptions: photoAccessHelper.FetchOptions = {
   fetchColumns: [],
   predicates: photoPredicates
 };
 
 try {
-  let albumFetchResult = await phAccessHelper.getAlbums(photoAccessHelper.AlbumType.USER, photoAccessHelper.AlbumSubtype.USER_GENERIC, albumFetchOptions);
-  let album = await albumFetchResult.getFirstObject();
+  let albumFetchResult: photoAccessHelper.FetchResult<photoAccessHelper.Album> = await phAccessHelper.getAlbums(photoAccessHelper.AlbumType.USER, photoAccessHelper.AlbumSubtype.USER_GENERIC, albumFetchOptions);
+  let album: photoAccessHelper.Album = await albumFetchResult.getFirstObject();
   console.info('getAlbums successfully, albumName: ' + album.albumName);
   let photoFetchResult = await phAccessHelper.getAssets(photoFetchOptions);
   let fileAsset = await photoFetchResult.getFirstObject();
@@ -204,24 +209,25 @@ try {
 
 ```ts
 import dataSharePredicates from '@ohos.data.dataSharePredicates';
+import photoAccessHelper from '@ohos.file.photoAccessHelper';
 
-let albumPredicates = new dataSharePredicates.DataSharePredicates();
+let albumPredicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
 let albumName = photoAccessHelper.AlbumKey.ALBUM_NAME;
 albumPredicates.equalTo(albumName, 'albumName');
-let albumFetchOptions = {
+let albumFetchOptions: photoAccessHelper.FetchOptions = {
   fetchColumns: [],
   predicates: albumPredicates
 };
 
-let photoPredicates = new dataSharePredicates.DataSharePredicates();
-let photoFetchOptions = {
+let photoPredicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
+let photoFetchOptions: photoAccessHelper.FetchOptions = {
   fetchColumns: [],
   predicates: photoPredicates
 };
 
 try {
-  let albumFetchResult = await phAccessHelper.getAlbums(photoAccessHelper.AlbumType.USER, photoAccessHelper.AlbumSubtype.USER_GENERIC, albumFetchOptions);
-  let album = await albumFetchResult.getFirstObject();
+  let albumFetchResult: photoAccessHelper.FetchResult<photoAccessHelper.Album> = await phAccessHelper.getAlbums(photoAccessHelper.AlbumType.USER, photoAccessHelper.AlbumSubtype.USER_GENERIC, albumFetchOptions);
+  let album: photoAccessHelper.Album = await albumFetchResult.getFirstObject();
   console.info('getAlbums successfully, albumName: ' + album.albumName);
   let photoFetchResult = await album.getAssets(photoFetchOptions);
   let fileAsset = await photoFetchResult.getFirstObject();
@@ -258,24 +264,25 @@ try {
 
 ```ts
 import dataSharePredicates from '@ohos.data.dataSharePredicates';
+import photoAccessHelper from '@ohos.file.photoAccessHelper';
 
-let albumPredicates = new dataSharePredicates.DataSharePredicates();
+let albumPredicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
 let albumName = photoAccessHelper.AlbumKey.ALBUM_NAME;
 albumPredicates.equalTo(albumName, 'albumName');
-let albumFetchOptions = {
+let albumFetchOptions: photoAccessHelper.FetchOptions = {
   fetchColumns: [],
   predicates: albumPredicates
 };
 
-let photoPredicates = new dataSharePredicates.DataSharePredicates();
-let photoFetchOptions = {
+let photoPredicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
+let photoFetchOptions: photoAccessHelper.FetchOptions = {
   fetchColumns: [],
   predicates: photoPredicates
 };
 
 try {
-  let albumFetchResult = await phAccessHelper.getAlbums(photoAccessHelper.AlbumType.USER, photoAccessHelper.AlbumSubtype.USER_GENERIC, albumFetchOptions);
-  let album = await albumFetchResult.getFirstObject();
+  let albumFetchResult: photoAccessHelper.FetchResult<photoAccessHelper.Album> = await phAccessHelper.getAlbums(photoAccessHelper.AlbumType.USER, photoAccessHelper.AlbumSubtype.USER_GENERIC, albumFetchOptions);
+  let album: photoAccessHelper.Album = await albumFetchResult.getFirstObject();
   console.info('getAlbums successfully, albumName: ' + album.albumName);
   let photoFetchResult = await album.getAssets(photoFetchOptions);
   let fileAsset = await photoFetchResult.getFirstObject();
@@ -308,18 +315,19 @@ try {
 
 ```ts
 import dataSharePredicates from '@ohos.data.dataSharePredicates';
+import photoAccessHelper from '@ohos.file.photoAccessHelper';
 
-let predicates = new dataSharePredicates.DataSharePredicates();
+let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
 let albumName = photoAccessHelper.AlbumKey.ALBUM_NAME;
 predicates.equalTo(albumName, '%albumName%');
-let fetchOptions = {
+let fetchOptions: photoAccessHelper.FetchOptions = {
   fetchColumns: [],
   predicates: predicates
 };
 
 try {
-  let fetchResult = await phAccessHelper.getAlbums(photoAccessHelper.AlbumType.USER, photoAccessHelper.AlbumSubtype.USER_GENERIC, fetchOptions);
-  let album = await fetchResult.getFirstObject();
+  let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.Album> = await phAccessHelper.getAlbums(photoAccessHelper.AlbumType.USER, photoAccessHelper.AlbumSubtype.USER_GENERIC, fetchOptions);
+  let album: photoAccessHelper.Album = await fetchResult.getFirstObject();
   console.info('getAlbums successfully, albumName: ' + album.albumName);
   phAccessHelper.deleteAlbums([album]);
   fetchResult.close();