diff --git a/api/@ohos.file.environment.d.ts b/api/@ohos.file.environment.d.ts
index 5d89e2c967fc799815049604852d2b59344036a2..cb5c78b0fd6a47e2f5d2dedc6d893ae01600dffb 100644
--- a/api/@ohos.file.environment.d.ts
+++ b/api/@ohos.file.environment.d.ts
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2021-2023 Huawei Device Co., Ltd.
+ * Copyright (C) 2021-2025 Huawei Device Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
@@ -25,7 +25,8 @@ import type { AsyncCallback } from './@ohos.base';
  *
  * @namespace Environment
  * @syscap SystemCapability.FileManagement.File.Environment
- * @since 11
+ * @since arkts {'1.1':'11','1.2':'20'}
+ * @arkts 1.1&1.2
  */
 declare namespace Environment {
   /**
@@ -37,7 +38,8 @@ declare namespace Environment {
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.Environment
    * @systemapi
-   * @since 8
+   * @since arkts {'1.1':'8','1.2':'20'}
+   * @arkts 1.1&1.2
    */
   function getStorageDataDir(): Promise<string>;
 
@@ -50,7 +52,8 @@ declare namespace Environment {
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.Environment
    * @systemapi
-   * @since 8
+   * @since arkts {'1.1':'8','1.2':'20'}
+   * @arkts 1.1&1.2
    */
   function getStorageDataDir(callback: AsyncCallback<string>): void;
 
@@ -63,7 +66,8 @@ declare namespace Environment {
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.Environment
    * @systemapi
-   * @since 8
+   * @since arkts {'1.1':'8','1.2':'20'}
+   * @arkts 1.1&1.2
    */
   function getUserDataDir(): Promise<string>;
 
@@ -76,7 +80,8 @@ declare namespace Environment {
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.Environment
    * @systemapi
-   * @since 8
+   * @since arkts {'1.1':'8','1.2':'20'}
+   * @arkts 1.1&1.2
    */
   function getUserDataDir(callback: AsyncCallback<string>): void;
 
@@ -98,7 +103,8 @@ declare namespace Environment {
    * @throws { BusinessError } 801 - Capability not supported.
    * @throws { BusinessError } 13900042 - Unknown error.
    * @syscap SystemCapability.FileManagement.File.Environment.FolderObtain
-   * @since 12
+   * @since arkts {'1.1':'12','1.2':'20'}
+   * @arkts 1.1&1.2
    */
   function getUserDownloadDir(): string;
 
@@ -120,7 +126,8 @@ declare namespace Environment {
    * @throws { BusinessError } 801 - Capability not supported.
    * @throws { BusinessError } 13900042 - Unknown error.
    * @syscap SystemCapability.FileManagement.File.Environment.FolderObtain
-   * @since 12
+   * @since arkts {'1.1':'12','1.2':'20'}
+   * @arkts 1.1&1.2
    */
   function getUserDesktopDir(): string;
 
@@ -142,7 +149,8 @@ declare namespace Environment {
    * @throws { BusinessError } 801 - Capability not supported.
    * @throws { BusinessError } 13900042 - Unknown error.
    * @syscap SystemCapability.FileManagement.File.Environment.FolderObtain
-   * @since 12
+   * @since arkts {'1.1':'12','1.2':'20'}
+   * @arkts 1.1&1.2
    */
   function getUserDocumentDir(): string;
 
@@ -157,7 +165,8 @@ declare namespace Environment {
    * @throws { BusinessError } 13900042 - Unknown error.
    * @syscap SystemCapability.FileManagement.File.Environment.FolderObtain
    * @systemapi Hide this for inner system use.
-   * @since 11
+   * @since arkts {'1.1':'11','1.2':'20'}
+   * @arkts 1.1&1.2
    */
   function getExternalStorageDir(): string;
 
@@ -172,7 +181,8 @@ declare namespace Environment {
    * @throws { BusinessError } 13900042 - Unknown error.
    * @syscap SystemCapability.FileManagement.File.Environment.FolderObtain
    * @systemapi Hide this for inner system use.
-   * @since 11
+   * @since arkts {'1.1':'11','1.2':'20'}
+   * @arkts 1.1&1.2
    */
   function getUserHomeDir(): string;
 }
diff --git a/api/@ohos.file.fs.d.ets b/api/@ohos.file.fs.d.ets
index bba5b665e5a7b4ddee43c4517b67aead1a428e73..de66fce23e5c76a836db8164273df9fe7e70432c 100644
--- a/api/@ohos.file.fs.d.ets
+++ b/api/@ohos.file.fs.d.ets
@@ -21,32 +21,6 @@
 import { AsyncCallback } from './@ohos.base';
 import stream from './@ohos.util.stream';
 
-export default fileIo;
-
-/**
- * FileIO
- *
- * @namespace fileIo
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * FileIO
- *
- * @namespace fileIo
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * FileIO
- *
- * @namespace fileIo
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
 /**
  * FileIO
  *
@@ -54,107 +28,10 @@ export default fileIo;
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @crossplatform
  * @atomicservice
- * @since 12
+ * @since 20
  */
 declare namespace fileIo {
-  export { access };
-  export { accessSync };
-  export { close };
-  export { closeSync };
-  export { copy };
-  export { copyDir };
-  export { copyDirSync };
-  export { copyFile };
-  export { copyFileSync };
-  export { createRandomAccessFile };
-  export { createRandomAccessFileSync };
-  export { createStream };
-  export { createStreamSync };
-  export { createReadStream };
-  export { createWriteStream };
-  export { createWatcher };
-  export { dup };
-  export { fdatasync };
-  export { fdatasyncSync };
-  export { fdopenStream };
-  export { fdopenStreamSync };
-  export { fsync };
-  export { fsyncSync };
-  export { getxattr };
-  export { getxattrSync };
-  export { listFile };
-  export { listFileSync };
-  export { lseek };
-  export { lstat };
-  export { lstatSync };
-  export { mkdir };
-  export { mkdirSync };
-  export { mkdtemp };
-  export { mkdtempSync };
-  export { moveDir };
-  export { moveDirSync };
-  export { moveFile };
-  export { moveFileSync };
-  export { open };
-  export { openSync };
-  export { read };
-  export { readSync };
-  export { readLines };
-  export { readLinesSync };
-  export { readText };
-  export { readTextSync };
-  export { rename };
-  export { renameSync };
-  export { rmdir };
-  export { rmdirSync };
-  export { setxattr };
-  export { setxattrSync };
-  export { stat };
-  export { statSync };
-  export { symlink };
-  export { symlinkSync };
-  export { truncate };
-  export { truncateSync };
-  export { unlink };
-  export { unlinkSync };
-  export { utimes };
-  export { write };
-  export { writeSync };
-  export { AccessModeType };
-  export { AccessFlagType };
-  export { File };
-  export { OpenMode };
-  export { RandomAccessFile };
-  export { ReaderIterator };
-  export { Stat };
-  export { Stream };
-  export { ReadStream };
-  export { WriteStream };
-  export { Watcher };
-  export { WhenceType };
-  export { TaskSignal };
-  export { connectDfs };
-  export { disconnectDfs };
-  export { Progress };
-  export { CopyOptions };
-  export { ProgressListener };
-  export type { DfsListeners };
 
-  /**
-   * Mode Indicates the open flags.
-   *
-   * @namespace OpenMode
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
-   */
-  /**
-   * Mode Indicates the open flags.
-   *
-   * @namespace OpenMode
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @crossplatform
-   * @since 10
-   */
    /**
    * Mode Indicates the open flags.
    *
@@ -162,24 +39,9 @@ declare namespace fileIo {
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
    * @atomicservice
-   * @since 11
+   * @since 20
    */
   namespace OpenMode {
-  /**
-   * Read only Permission.
-   *
-   * @constant
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
-   */
-  /**
-   * Read only Permission.
-   *
-   * @constant
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @crossplatform
-   * @since 10
-   */
   /**
    * Read only Permission.
    *
@@ -187,24 +49,9 @@ declare namespace fileIo {
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
    * @atomicservice
-   * @since 11
+   * @since 20
    */
     const READ_ONLY = 0o0;
-  /**
-   * Write only Permission.
-   *
-   * @constant
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
-   */
-  /**
-   * Write only Permission.
-   *
-   * @constant
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @crossplatform
-   * @since 10
-   */
   /**
    * Write only Permission.
    *
@@ -212,24 +59,9 @@ declare namespace fileIo {
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
    * @atomicservice
-   * @since 11
+   * @since 20
    */
     const WRITE_ONLY = 0o1;
-  /**
-   * Write and Read Permission.
-   *
-   * @constant
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
-   */
-  /**
-   * Write and Read Permission.
-   *
-   * @constant
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @crossplatform
-   * @since 10
-   */
   /**
    * Write and Read Permission.
    *
@@ -237,24 +69,9 @@ declare namespace fileIo {
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
    * @atomicservice
-   * @since 11
+   * @since 20
    */
     const READ_WRITE = 0o2;
-  /**
-   * If not exist, create file.
-   *
-   * @constant
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
-   */
-  /**
-   * If not exist, create file.
-   *
-   * @constant
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @crossplatform
-   * @since 10
-   */
   /**
    * If not exist, create file.
    *
@@ -262,24 +79,9 @@ declare namespace fileIo {
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
    * @atomicservice
-   * @since 11
+   * @since 20
    */
     const CREATE = 0o100;
-  /**
-   * File truncate len 0.
-   *
-   * @constant
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
-   */
-  /**
-   * File truncate len 0.
-   *
-   * @constant
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @crossplatform
-   * @since 10
-   */
   /**
    * File truncate len 0.
    *
@@ -287,24 +89,9 @@ declare namespace fileIo {
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
    * @atomicservice
-   * @since 11
+   * @since 20
    */
     const TRUNC = 0o1000;
-  /**
-   * File append write.
-   *
-   * @constant
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
-   */
-  /**
-   * File append write.
-   *
-   * @constant
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @crossplatform
-   * @since 10
-   */
   /**
    * File append write.
    *
@@ -312,81 +99,53 @@ declare namespace fileIo {
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
    * @atomicservice
-   * @since 11
+   * @since 20
    */
     const APPEND = 0o2000;
-  /**
-   * File open in nonblocking mode.
-   *
-   * @constant
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
-   */
   /**
    * File open in nonblocking mode.
    *
    * @constant
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
-   * @since 10
+   * @since 20
    */
     const NONBLOCK = 0o4000;
-  /**
-   * File is Dir.
-   *
-   * @constant
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
-   */
   /**
    * File is Dir.
    *
    * @constant
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
-   * @since 10
+   * @since 20
    */
     const DIR = 0o200000;
-  /**
-   * File is not symbolic link.
-   *
-   * @constant
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
-   */
   /**
    * File is not symbolic link.
    *
    * @constant
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
-   * @since 10
+   * @since 20
    */
     const NOFOLLOW = 0o400000;
-  /**
-   * SYNC IO.
-   *
-   * @constant
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
-   */
   /**
    * SYNC IO.
    *
    * @constant
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
-   * @since 10
+   * @since 20
    */
     const SYNC = 0o4010000;
   }
-}
 
 /**
  * Access file.
  *
  * @param { string } path - path.
- * @returns { Promise<boolean> } return Promise
+ * @param { AccessModeType } [mode = fs.AccessModeType.EXIST] - accessibility mode.
+ * @returns { Promise<boolean> } Returns the file is accessible or not in promise mode.
  * @throws { BusinessError } 13900002 - No such file or directory
  * @throws { BusinessError } 13900005 - I/O error
  * @throws { BusinessError } 13900008 - Bad file descriptor
@@ -400,13 +159,17 @@ declare namespace fileIo {
  * @throws { BusinessError } 13900033 - Too many symbolic links encountered
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
+ * @crossplatform
+ * @atomicservice
+ * @since 20
  */
+function access(path: string, mode?: AccessModeType): Promise<boolean>;
+
 /**
  * Access file.
  *
  * @param { string } path - path.
- * @returns { Promise<boolean> } Returns the file is accessible or not in promise mode.
+ * @param { AsyncCallback<boolean> } callback - The callback is used to return the file is accessible or not.
  * @throws { BusinessError } 13900002 - No such file or directory
  * @throws { BusinessError } 13900005 - I/O error
  * @throws { BusinessError } 13900008 - Bad file descriptor
@@ -421,16 +184,21 @@ declare namespace fileIo {
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @crossplatform
- * @since 10
+ * @atomicservice
+ * @since 20
  */
+function access(path: string, callback: AsyncCallback<boolean>): void;
+
 /**
  * Access file.
  *
- * @param { string } path - path.
+ * @param { string } path - file path that needs to be checked whether the calling process can access.
+ * @param { AccessModeType } mode - accessibility mode.
+ * @param { AccessFlagType } flag - accessibility flag.
  * @returns { Promise<boolean> } Returns the file is accessible or not in promise mode.
- * @throws { BusinessError } 13900002 - No such file or directory
+ * @throws { BusinessError } 401 - Parameter error.Possible causes:1.Mandatory parameters are left unspecified;
+ * <br>2.Incorrect parameter types.
  * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
  * @throws { BusinessError } 13900011 - Out of memory
  * @throws { BusinessError } 13900012 - Permission denied
  * @throws { BusinessError } 13900013 - Bad address
@@ -439,18 +207,18 @@ declare namespace fileIo {
  * @throws { BusinessError } 13900023 - Text file busy
  * @throws { BusinessError } 13900030 - File name too long
  * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
+ * @since 20
  */
+function access(path: string, mode: AccessModeType, flag: AccessFlagType): Promise<boolean>;
+
 /**
- * Access file.
+ *  
+ * Access file with sync interface.
  *
  * @param { string } path - path.
  * @param { AccessModeType } [mode = fs.AccessModeType.EXIST] - accessibility mode.
- * @returns { Promise<boolean> } Returns the file is accessible or not in promise mode.
+ * @returns { boolean } Returns the file is accessible or not.
  * @throws { BusinessError } 13900002 - No such file or directory
  * @throws { BusinessError } 13900005 - I/O error
  * @throws { BusinessError } 13900008 - Bad file descriptor
@@ -466,18 +234,20 @@ declare namespace fileIo {
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @crossplatform
  * @atomicservice
- * @since 12
+ * @since 20
  */
-declare function access(path: string, mode?: AccessModeType): Promise<boolean>;
+function accessSync(path: string, mode?: AccessModeType): boolean;
 
 /**
- * Access file.
+ * Access file with sync interface.
  *
- * @param { string } path - path.
- * @param { AsyncCallback<boolean> } callback - The callback is used to return the file is accessible or not.
- * @throws { BusinessError } 13900002 - No such file or directory
+ * @param { string } path - file path that needs to be checked whether the calling process can access.
+ * @param { AccessModeType } mode - accessibility mode.
+ * @param { AccessFlagType } flag - accessibility flag.
+ * @returns { boolean } Returns the file is accessible or not.
+ * @throws { BusinessError } 401 - Parameter error.Possible causes:1.Mandatory parameters are left unspecified;
+ * <br>2.Incorrect parameter types.
  * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
  * @throws { BusinessError } 13900011 - Out of memory
  * @throws { BusinessError } 13900012 - Permission denied
  * @throws { BusinessError } 13900013 - Bad address
@@ -486,5554 +256,2422 @@ declare function access(path: string, mode?: AccessModeType): Promise<boolean>;
  * @throws { BusinessError } 13900023 - Text file busy
  * @throws { BusinessError } 13900030 - File name too long
  * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
+ * @since 20
  */
+function accessSync(path: string, mode: AccessModeType, flag: AccessFlagType): boolean;
+
 /**
- * Access file.
+ * Close file or fd.
  *
- * @param { string } path - path.
- * @param { AsyncCallback<boolean> } callback - The callback is used to return the file is accessible or not.
- * @throws { BusinessError } 13900002 - No such file or directory
+ * @param { number | File } file - file object or fd.
+ * @returns { Promise<void> } The promise returned by the function.
+ * @throws { BusinessError } 13900004 - Interrupted system call
  * @throws { BusinessError } 13900005 - I/O error
  * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+ * @throws { BusinessError } 13900025 - No space left on device
+ * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @crossplatform
- * @since 10
+ * @atomicservice
+ * @since 20
  */
+function close(file: number | File): Promise<void>;
+
 /**
- * Access file.
+ * Close file or fd.
  *
- * @param { string } path - path.
- * @param { AsyncCallback<boolean> } callback - The callback is used to return the file is accessible or not.
- * @throws { BusinessError } 13900002 - No such file or directory
+ * @param { number | File } file - file object or fd.
+ * @param { AsyncCallback<void> } callback - Return the callback function.
+ * @throws { BusinessError } 13900004 - Interrupted system call
  * @throws { BusinessError } 13900005 - I/O error
  * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+ * @throws { BusinessError } 13900025 - No space left on device
+ * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @crossplatform
  * @atomicservice
- * @since 11
+ * @since 20
  */
-declare function access(path: string, callback: AsyncCallback<boolean>): void;
+function close(file: number | File, callback: AsyncCallback<void>): void;
 
 /**
- * Access file.
+ * Close file or fd with sync interface.
  *
- * @param { string } path - file path that needs to be checked whether the calling process can access.
- * @param { AccessModeType } mode - accessibility mode.
- * @param { AccessFlagType } flag - accessibility flag.
- * @returns { Promise<boolean> } Returns the file is accessible or not in promise mode.
- * @throws { BusinessError } 401 - Parameter error.Possible causes:1.Mandatory parameters are left unspecified;
- * <br>2.Incorrect parameter types.
+ * @param { number | File } file - file object or fd.
+ * @throws { BusinessError } 13900004 - Interrupted system call
  * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+ * @throws { BusinessError } 13900008 - Bad file descriptor
+ * @throws { BusinessError } 13900025 - No space left on device
+ * @throws { BusinessError } 13900041 - Quota exceeded
+ * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 12
+ * @crossplatform
+ * @atomicservice
+ * @since 20
  */
-declare function access(path: string, mode: AccessModeType, flag: AccessFlagType): Promise<boolean>;
+function closeSync(file: number | File): void;
 
 /**
- * Access file with sync interface.
+ * Copy file or directory.
  *
- * @param { string } path - path.
- * @returns { boolean } Returns the file is accessible or not.
+ * @param { string } srcUri - src uri.
+ * @param { string } destUri - dest uri.
+ * @param { CopyOptions } [options] - options.
+ * @returns { Promise<void> } The promise returned by the function.
+ * @throws { BusinessError } 401 - Parameter error.Possible causes:1.Mandatory parameters are left unspecified;
+ * <br>2.Incorrect parameter types.
+ * @throws { BusinessError } 13900001 - Operation not permitted
  * @throws { BusinessError } 13900002 - No such file or directory
+ * @throws { BusinessError } 13900004 - Interrupted system call
  * @throws { BusinessError } 13900005 - I/O error
  * @throws { BusinessError } 13900008 - Bad file descriptor
+ * @throws { BusinessError } 13900010 - Try again
  * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Access file with sync interface.
- *
- * @param { string } path - path.
- * @returns { boolean } Returns the file is accessible or not.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Access file with sync interface.
- *
- * @param { string } path - path.
- * @returns { boolean } Returns the file is accessible or not.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-/**
- *  
- * Access file with sync interface.
- *
- * @param { string } path - path.
- * @param { AccessModeType } [mode = fs.AccessModeType.EXIST] - accessibility mode.
- * @returns { boolean } Returns the file is accessible or not.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 12
- */
-declare function accessSync(path: string, mode?: AccessModeType): boolean;
-
-/**
- * Access file with sync interface.
- *
- * @param { string } path - file path that needs to be checked whether the calling process can access.
- * @param { AccessModeType } mode - accessibility mode.
- * @param { AccessFlagType } flag - accessibility flag.
- * @returns { boolean } Returns the file is accessible or not.
- * @throws { BusinessError } 401 - Parameter error.Possible causes:1.Mandatory parameters are left unspecified;
- * <br>2.Incorrect parameter types.
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 12
- */
-declare function accessSync(path: string, mode: AccessModeType, flag: AccessFlagType): boolean;
-
-/**
- * Close file or fd.
- *
- * @param { number | File } file - file object or fd.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Close file or fd.
- *
- * @param { number | File } file - file object or fd.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Close file or fd.
- *
- * @param { number | File } file - file object or fd.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-declare function close(file: number | File): Promise<void>;
-
-/**
- * Close file or fd.
- *
- * @param { number | File } file - file object or fd.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Close file or fd.
- *
- * @param { number | File } file - file object or fd.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Close file or fd.
- *
- * @param { number | File } file - file object or fd.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-declare function close(file: number | File, callback: AsyncCallback<void>): void;
-
-/**
- * Close file or fd with sync interface.
- *
- * @param { number | File } file - file object or fd.
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Close file or fd with sync interface.
- *
- * @param { number | File } file - file object or fd.
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Close file or fd with sync interface.
- *
- * @param { number | File } file - file object or fd.
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-declare function closeSync(file: number | File): void;
-
-/**
- * Copy file or directory.
- *
- * @param { string } srcUri - src uri.
- * @param { string } destUri - dest uri.
- * @param { CopyOptions } [options] - options.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 401 - Parameter error.Possible causes:1.Mandatory parameters are left unspecified;
- * <br>2.Incorrect parameter types.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied by the file system
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900021 - File table overflow
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 11
- */
-/**
- * Copy file or directory.
- *
- * @param { string } srcUri - src uri.
- * @param { string } destUri - dest uri.
- * @param { CopyOptions } [options] - options.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 401 - Parameter error.Possible causes:1.Mandatory parameters are left unspecified;
- * <br>2.Incorrect parameter types.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied by the file system
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900021 - File table overflow
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @throws { BusinessError } 13900044 - Network is unreachable
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 12
- */
-declare function copy(srcUri: string, destUri: string, options?: CopyOptions): Promise<void>;
-
-/**
- * Copy file or directory.
- *
- * @param { string } srcUri - src uri.
- * @param { string } destUri - dest uri.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 401 - Parameter error.Possible causes:1.Mandatory parameters are left unspecified;
- * <br>2.Incorrect parameter types.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied by the file system
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900021 - File table overflow
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 11
- */
-declare function copy(srcUri: string, destUri: string, callback: AsyncCallback<void>): void;
-
-/**
- * Copy file or directory.
- *
- * @param { string } srcUri - src uri.
- * @param { string } destUri - dest uri.
- * @param { CopyOptions } options - options.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 401 - Parameter error.Possible causes:1.Mandatory parameters are left unspecified;
- * <br>2.Incorrect parameter types.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied by the file system
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900021 - File table overflow
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 11
- */
-declare function copy(srcUri: string, destUri: string, options: CopyOptions, callback: AsyncCallback<void>): void;
-
-/**
- * Copy directory.
- *
- * @param { string } src - source path.
- * @param { string } dest - destination path.
- * @param { number } [mode = 0] - mode.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 10
- */
-/**
- * Copy directory.
- *
- * @param { string } src - source path.
- * @param { string } dest - destination path.
- * @param { number } [mode = 0] - mode.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @throws { BusinessError } 13900044 - Network is unreachable
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 12
- */
-declare function copyDir(src: string, dest: string, mode?: number): Promise<void>;
-
-/**
- * Copy directory.
- *
- * @param { string } src - source path.
- * @param { string } dest - destination path.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 10
- */
-declare function copyDir(src: string, dest: string, callback: AsyncCallback<void>): void;
-
-/**
- * Copy directory.
- *
- * @param { string } src - source path.
- * @param { string } dest - destination path.
- * @param { AsyncCallback<void, Array<ConflictFiles>> } callback - Return the callback function.
- * @throws { BusinessError } 13900015 - File exists
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 10
- */
-declare function copyDir(src: string, dest: string, callback: AsyncCallback<void, Array<ConflictFiles>>): void;
-
-
-/**
- * Copy directory.
- *
- * @param { string } src - source path.
- * @param { string } dest - destination path.
- * @param { number } mode - mode.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 10
- */
-declare function copyDir(src: string, dest: string, mode: number, callback: AsyncCallback<void>): void;
-
-/**
- * Copy directory.
- *
- * @param { string } src - source path.
- * @param { string } dest - destination path.
- * @param { number } mode - mode.
- * @param { AsyncCallback<void, Array<ConflictFiles>> } callback - Return the callback function.
- * @throws { BusinessError } 13900015 - File exists
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 10
- */
-declare function copyDir(src: string, dest: string, mode: number, callback: AsyncCallback<void, Array<ConflictFiles>>): void;
-
-/**
- * Copy directory with sync interface.
- *
- * @param { string } src - source path.
- * @param { string } dest - destination path.
- * @param { number } [mode = 0] - mode.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 10
- */
-/**
- * Copy directory with sync interface.
- *
- * @param { string } src - source path.
- * @param { string } dest - destination path.
- * @param { number } [mode = 0] - mode.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @throws { BusinessError } 13900044 - Network is unreachable
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 12
- */
-declare function copyDirSync(src: string, dest: string, mode?: number): void;
-
-/**
- * Copy file.
- *
- * @param { string | number } src - src.
- * @param { string | number } dest - dest.
- * @param { number } [mode = 0] - mode.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Copy file.
- *
- * @param { string | number } src - src.
- * @param { string | number } dest - dest.
- * @param { number } [mode = 0] - mode.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Copy file.
- *
- * @param { string | number } src - src.
- * @param { string | number } dest - dest.
- * @param { number } [mode = 0] - mode.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-/**
- * Copy file.
- *
- * @param { string | number } src - src.
- * @param { string | number } dest - dest.
- * @param { number } [mode = 0] - mode.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @throws { BusinessError } 13900044 - Network is unreachable
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 12
- */
-declare function copyFile(src: string | number, dest: string | number, mode?: number): Promise<void>;
-
-/**
- * Copy file.
- *
- * @param { string | number } src - src.
- * @param { string | number } dest - dest.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Copy file.
- *
- * @param { string | number } src - src.
- * @param { string | number } dest - dest.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Copy file.
- *
- * @param { string | number } src - src.
- * @param { string | number } dest - dest.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-declare function copyFile(src: string | number, dest: string | number, callback: AsyncCallback<void>): void;
-
-/**
- * Copy file.
- *
- * @param { string | number } src - src.
- * @param { string | number } dest - dest.
- * @param { number } [mode = 0] - mode.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Copy file.
- *
- * @param { string | number } src - src.
- * @param { string | number } dest - dest.
- * @param { number } [mode = 0] - mode.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Copy file.
- *
- * @param { string | number } src - src.
- * @param { string | number } dest - dest.
- * @param { number } [mode = 0] - mode.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-declare function copyFile(
-  src: string | number,
-  dest: string | number,
-  mode: number,
-  callback: AsyncCallback<void>
-): void;
-
-/**
- * Copy file with sync interface.
- *
- * @param { string | number } src - src.
- * @param { string | number } dest - dest.
- * @param { number } [mode = 0] - mode.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Copy file with sync interface.
- *
- * @param { string | number } src - src.
- * @param { string | number } dest - dest.
- * @param { number } [mode = 0] - mode.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Copy file with sync interface.
- *
- * @param { string | number } src - src.
- * @param { string | number } dest - dest.
- * @param { number } [mode = 0] - mode.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-/**
- * Copy file with sync interface.
- *
- * @param { string | number } src - src.
- * @param { string | number } dest - dest.
- * @param { number } [mode = 0] - mode.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @throws { BusinessError } 13900044 - Network is unreachable
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 12
- */
-declare function copyFileSync(src: string | number, dest: string | number, mode?: number): void;
-
-/**
- * Create class Stream.
- *
- * @param { string } path - path.
- * @param { string } mode - mode.
- * @returns { Promise<Stream> } return Promise
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900006 - No such device or address
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900017 - No such device
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900029 - Resource deadlock would occur
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Create class Stream.
- *
- * @param { string } path - path.
- * @param { string } mode - mode.
- * @returns { Promise<Stream> } return Promise
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900006 - No such device or address
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900017 - No such device
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900029 - Resource deadlock would occur
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @throws { BusinessError } 13900044 - Network is unreachable
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 12
- */
-declare function createStream(path: string, mode: string): Promise<Stream>;
-
-/**
- * Create class Stream.
- *
- * @param { string } path - path.
- * @param { string } mode - mode.
- * @param { AsyncCallback<Stream> } callback - callback.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900006 - No such device or address
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900017 - No such device
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900029 - Resource deadlock would occur
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-declare function createStream(path: string, mode: string, callback: AsyncCallback<Stream>): void;
-
-/**
- * Create class Stream with sync interface.
- *
- * @param { string } path - path.
- * @param { string } mode - mode.
- * @returns { Stream } createStream
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900006 - No such device or address
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900017 - No such device
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900029 - Resource deadlock would occur
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Create class Stream with sync interface.
- *
- * @param { string } path - path.
- * @param { string } mode - mode.
- * @returns { Stream } createStream
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900006 - No such device or address
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900017 - No such device
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900029 - Resource deadlock would occur
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @throws { BusinessError } 13900044 - Network is unreachable
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 12
- */
-declare function createStreamSync(path: string, mode: string): Stream;
-
-
-/**
- * Create class RandomAccessFile.
- *
- * @param { string | File } file - file path, object.
- * @param { number } [mode = OpenMode.READ_ONLY] - mode.
- * @returns { Promise<RandomAccessFile> } Returns the RandomAccessFile object which has been created in promise mode.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900006 - No such device or address
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900017 - No such device
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900029 - Resource deadlock would occur
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 10
- */
-/**
- * Create class RandomAccessFile.
- *
- * @param { string | File } file - file path, object.
- * @param { number } [mode = OpenMode.READ_ONLY] - mode.
- * @param { RandomAccessFileOptions } [options] - RandomAccessFile options
- * @returns { Promise<RandomAccessFile> } Returns the RandomAccessFile object which has been created in promise mode.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900006 - No such device or address
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900017 - No such device
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900029 - Resource deadlock would occur
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @throws { BusinessError } 13900044 - Network is unreachable
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 12
- */
-declare function createRandomAccessFile(file: string | File, mode?: number,
-  options?: RandomAccessFileOptions): Promise<RandomAccessFile>;
-
-/**
- * Create class RandomAccessFile.
- *
- * @param { string | File } file - file path, object.
- * @param { AsyncCallback<RandomAccessFile> } callback - The callback is used to return the RandomAccessFile object which has been created.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900006 - No such device or address
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900017 - No such device
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900029 - Resource deadlock would occur
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 10
- */
-declare function createRandomAccessFile(file: string | File, callback: AsyncCallback<RandomAccessFile>): void;
-
-/**
- * Create class RandomAccessFile.
- *
- * @param { string | File } file - file path, object.
- * @param { number } [mode = OpenMode.READ_ONLY] - mode.
- * @param { AsyncCallback<RandomAccessFile> } callback - The callback is used to return the RandomAccessFile object which has been created.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900006 - No such device or address
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900017 - No such device
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900029 - Resource deadlock would occur
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 10
- */
-declare function createRandomAccessFile(file: string | File, mode: number, callback: AsyncCallback<RandomAccessFile>): void;
-
-/**
- * Create class RandomAccessFile with sync interface.
- *
- * @param { string | File } file - file path, object.
- * @param { number } [mode = OpenMode.READ_ONLY] - mode.
- * @returns { RandomAccessFile } Returns the RandomAccessFile object which has been created.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900006 - No such device or address
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900017 - No such device
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900029 - Resource deadlock would occur
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 10
- */
-/**
- * Create class RandomAccessFile with sync interface.
- *
- * @param { string | File } file - file path, object.
- * @param { number } [mode = OpenMode.READ_ONLY] - mode.
- * @param { RandomAccessFileOptions } [options] - RandomAccessFile options
- * @returns { RandomAccessFile } Returns the RandomAccessFile object which has been created.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900006 - No such device or address
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900017 - No such device
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900029 - Resource deadlock would occur
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @throws { BusinessError } 13900044 - Network is unreachable
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 12
- */
-declare function createRandomAccessFileSync(file: string | File, mode?: number,
-  options?: RandomAccessFileOptions): RandomAccessFile;
-
-/**
- * Create file read stream.
- *
- * @param { string } path - file path.
- * @param { ReadStreamOptions } [options] - Optional parameters for ReadStream.
- * @returns { ReadStream } Returns the ReadStream object which has been created.
- * @throws { BusinessError } 401 - Parameter error
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900017 - No such device
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @throws { BusinessError } 13900044 - Network is unreachable
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 12
- */
-declare function createReadStream(path: string, options?: ReadStreamOptions): ReadStream;
-
-/**
- * Create file write stream.
- *
- * @param { string } path - file path.
- * @param { WriteStreamOptions } [options] - Optional parameters for ReadStream.
- * @returns { WriteStream } Returns the WriteStream object which has been created.
- * @throws { BusinessError } 401 - Parameter error
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900017 - No such device
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 12
- */
-declare function createWriteStream(path: string, options?: WriteStreamOptions): WriteStream;
-
-/**
- * Create watcher to listen for file changes.
- *
- * @param { string } path - path.
- * @param { number } events - listened events.
- * @param { WatchEventListener } listener - Callback to invoke when an event of the specified type occurs.
- * @returns { Watcher } Returns the Watcher object which has been created.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900021 - File table overflow
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 10
- */
-declare function createWatcher(path: string, events: number, listener: WatchEventListener): Watcher;
-
-/**
- * Duplicate fd to File Object.
- *
- * @param { number } fd - fd.
- * @returns { File } return File
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 10
- */
-declare function dup(fd: number): File;
-
-/**
- * Synchronize file metadata.
- *
- * @param { number } fd - fd.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Synchronize file metadata.
- *
- * @param { number } fd - fd.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-declare function fdatasync(fd: number): Promise<void>;
-
-/**
- * Synchronize file metadata.
- *
- * @param { number } fd - fd.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Synchronize file metadata.
- *
- * @param { number } fd - fd.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-declare function fdatasync(fd: number, callback: AsyncCallback<void>): void;
-
-/**
- * Synchronize file metadata with sync interface.
- *
- * @param { number } fd - fd.
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Synchronize file metadata with sync interface.
- *
- * @param { number } fd - fd.
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-declare function fdatasyncSync(fd: number): void;
-
-/**
- * Create class Stream by using fd.
- *
- * @param { number } fd - fd.
- * @param { string } mode - mode.
- * @returns { Promise<Stream> } Returns the Stream object in promise mode.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900006 - No such device or address
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900017 - No such device
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900029 - Resource deadlock would occur
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-declare function fdopenStream(fd: number, mode: string): Promise<Stream>;
-
-/**
- * Create class Stream by using fd.
- *
- * @param { number } fd - fd.
- * @param { string } mode - mode.
- * @param { AsyncCallback<Stream> } callback - The callback is used to return the Stream object.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900006 - No such device or address
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900017 - No such device
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900029 - Resource deadlock would occur
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-declare function fdopenStream(fd: number, mode: string, callback: AsyncCallback<Stream>): void;
-
-/**
- * Create class Stream by using fd with sync interface.
- *
- * @param { number } fd - fd.
- * @param { string } mode - mode.
- * @returns { Stream } Returns the Stream object.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900006 - No such device or address
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900017 - No such device
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900029 - Resource deadlock would occur
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-declare function fdopenStreamSync(fd: number, mode: string): Stream;
-
-/**
- * Synchronize file.
- *
- * @param { number } fd - fd.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Synchronize file.
- *
- * @param { number } fd - fd.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-declare function fsync(fd: number): Promise<void>;
-
-/**
- * Synchronize file.
- *
- * @param { number } fd - fd.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Synchronize file.
- *
- * @param { number } fd - fd.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-declare function fsync(fd: number, callback: AsyncCallback<void>): void;
-
-/**
- * Synchronize file with sync interface.
- *
- * @param { number } fd - fd.
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Synchronize file with sync interface.
- *
- * @param { number } fd - fd.
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-declare function fsyncSync(fd: number): void;
-
-/**
- * List file.
- *
- * @param { string } path - path.
- * @param { object } [options] - options.
- * @returns { Promise<string[]> } Returns an Array containing the name of files or directories that meet the filter criteria in promise mode.
- *      If present, Include the subdirectory structure.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * List file.
- *
- * @param { string } path - path.
- * @param { object } [options] - options.
- * @returns { Promise<string[]> } Returns an Array containing the name of files or directories that meet the filter criteria.
- *      If present, Include the subdirectory structure.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * List file.
- *
- * @param { string } path - path.
- * @param { ListFileOptions } [options] - options.
- * @returns { Promise<string[]> } Returns an Array containing the name of files or directories that meet the filter criteria.
- *      If present, Include the subdirectory structure.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-declare function listFile(
-  path: string,
-  options?: ListFileOptions
-): Promise<string[]>;
-
-/**
- * List file.
- *
- * @param { string } path - path.
- * @param { AsyncCallback<string[]> } callback - The callback is used to return an Array containing the name of files or directories 
- *      that meet the filter criteria in promise mode. If present, Include the subdirectory structure.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * List file.
- *
- * @param { string } path - path.
- * @param { AsyncCallback<string[]> } callback - The callback is used to return an Array containing the name of files or directories 
- *      that meet the filter criteria in promise mode. If present, Include the subdirectory structure.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * List file.
- *
- * @param { string } path - path.
- * @param { AsyncCallback<string[]> } callback - The callback is used to return an Array containing the name of files or directories 
- *      that meet the filter criteria in promise mode. If present, Include the subdirectory structure.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-declare function listFile(path: string, callback: AsyncCallback<string[]>): void;
-
-/**
- * List file.
- *
- * @param { string } path - path.
- * @param { object } [options] - options.
- * @param { AsyncCallback<string[]> } callback - The callback is used to return an Array containing the name of files or directories 
- *      that meet the filter criteria in promise mode. If present, Include the subdirectory structure.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * List file.
- *
- * @param { string } path - path.
- * @param { object } [options] - options.
- * @param { AsyncCallback<string[]> } callback - The callback is used to return an Array containing the name of files or directories 
- *      that meet the filter criteria in promise mode. If present, Include the subdirectory structure.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * List file.
- *
- * @param { string } path - path.
- * @param { ListFileOptions } [options] - options.
- * @param { AsyncCallback<string[]> } callback - The callback is used to return an Array containing the name of files or directories 
- *      that meet the filter criteria in promise mode. If present, Include the subdirectory structure.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-declare function listFile(
-  path: string,
-  options: ListFileOptions,
-  callback: AsyncCallback<string[]>
-): void;
-
-/**
- * List file with sync interface.
- *
- * @param { string } path - path.
- * @param { object } [options] - options.
- * @returns { string[] } Returns an Array containing the name of files or directories that meet the filter criteria.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * List file with sync interface.
- *
- * @param { string } path - path.
- * @param { object } [options] - options.
- * @returns { string[] } Returns an Array containing the name of files or directories that meet the filter criteria.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * List file with sync interface.
- *
- * @param { string } path - path.
- * @param { ListFileOptions } [options] - options.
- * @returns { string[] } Returns an Array containing the name of files or directories that meet the filter criteria.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-declare function listFileSync(
-  path: string,
-  options?: ListFileOptions
-): string[];
-
-/**
- *  Reposition file offset.
- *
- * @param { number } fd - file descriptor.
- * @param { number } offset - file offset.
- * @param { WhenceType } [whence = WhenceType.SEEK_SET] - directive whence.
- * @returns { number } Returns the file offset relative to starting position of file.
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900026 - Illegal seek
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 11
- */
-/**
- *  Reposition file offset.
- *
- * @param { number } fd - file descriptor.
- * @param { number } offset - file offset.
- * @param { WhenceType } [whence = WhenceType.SEEK_SET] - directive whence.
- * @returns { number } Returns the file offset relative to starting position of file.
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900026 - Illegal seek
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 12
- */
-declare function lseek(fd: number, offset: number, whence?: WhenceType): number;
-
-/**
- * Stat link file.
- *
- * @param { string } path - path.
- * @returns { Promise<Stat> } Returns the Stat object in promise mode.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-declare function lstat(path: string): Promise<Stat>;
-
-/**
- * Stat link file.
- *
- * @param { string } path - path.
- * @param { AsyncCallback<Stat> } callback - The callback is used to return the Stat object.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-declare function lstat(path: string, callback: AsyncCallback<Stat>): void;
-
-/**
- * Stat link file with sync interface.
- *
- * @param { string } path - path.
- * @returns { Stat } Returns the Stat object.
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-declare function lstatSync(path: string): Stat;
-
-/**
- * Make dir.
- *
- * @param { string } path - path.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Make dir.
- *
- * @param { string } path - path.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Make dir.
- *
- * @param { string } path - path.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-declare function mkdir(path: string): Promise<void>;
-
-/**
- * Make dir.
- *
- * @param { string } path - path.
- * @param { boolean } recursion - whether to recursively make directory.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @atomicservice
- * @since 11
- */
-declare function mkdir(path: string, recursion: boolean): Promise<void>;
-
-/**
- * Make dir.
- *
- * @param { string } path - path.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Make dir.
- *
- * @param { string } path - path.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Make dir.
- *
- * @param { string } path - path.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-declare function mkdir(path: string, callback: AsyncCallback<void>): void;
-
-/**
- * Make dir.
- *
- * @param { string } path - path.
- * @param { boolean } recursion - whether to recursively make directory.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @atomicservice
- * @since 11
- */
-declare function mkdir(path: string, recursion: boolean, callback: AsyncCallback<void>): void;
-
-/**
- * Make dir with sync interface.
- *
- * @param { string } path - path.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Make dir with sync interface.
- *
- * @param { string } path - path.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Make dir with sync interface.
- *
- * @param { string } path - path.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-declare function mkdirSync(path: string): void;
-
-/**
- * Make dir with sync interface.
- *
- * @param { string } path - path.
- * @param { boolean } recursion - whether to recursively make directory.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @atomicservice
- * @since 11
- */
-declare function mkdirSync(path: string, recursion: boolean): void;
-
-/**
- * Make temp dir.
- *
- * @param { string } prefix - dir prefix.
- * @returns { Promise<string> } Returns the path to the new directory in promise mode.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Make temp dir.
- *
- * @param { string } prefix - dir prefix.
- * @returns { Promise<string> } Returns the path to the new directory in promise mode.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-declare function mkdtemp(prefix: string): Promise<string>;
-
-/**
- * Make temp dir.
- *
- * @param { string } prefix - dir prefix.
- * @param { AsyncCallback<string> } callback - The callback is used to return the path to the new directory.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Make temp dir.
- *
- * @param { string } prefix - dir prefix.
- * @param { AsyncCallback<string> } callback - The callback is used to return the path to the new directory.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-declare function mkdtemp(prefix: string, callback: AsyncCallback<string>): void;
-
-/**
- * Make temp dir with sync interface.
- *
- * @param { string } prefix - dir prefix.
- * @returns { string } Returns the path to the new directory.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Make temp dir with sync interface.
- *
- * @param { string } prefix - dir prefix.
- * @returns { string } Returns the path to the new directory.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-declare function mkdtempSync(prefix: string): string;
-
-/**
- * Move directory.
- *
- * @param { string } src - source file path.
- * @param { string } dest - destination file path.
- * @param { number } [mode = 0] - move mode when duplicate file name exists.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900016 - Cross-device link
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900032 - Directory not empty
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 10
- */
-declare function moveDir(src: string, dest: string, mode?: number): Promise<void>;
-
-/**
- * Move directory.
- *
- * @param { string } src - source file path.
- * @param { string } dest - destination file path.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900016 - Cross-device link
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900032 - Directory not empty
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 10
- */
-declare function moveDir(src: string, dest: string, callback: AsyncCallback<void>): void;
-
-/**
- * Move directory.
- *
- * @param { string } src - source file path.
- * @param { string } dest - destination file path.
- * @param { AsyncCallback<void, Array<ConflictFiles>> } callback - Return the callback function.
- * @throws { BusinessError } 13900015 - File exists
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 10
- */
-declare function moveDir(src: string, dest: string, callback: AsyncCallback<void, Array<ConflictFiles>>): void;
-
-/**
- * Move directory.
- *
- * @param { string } src - source file path.
- * @param { string } dest - destination file path.
- * @param { number } mode - move mode when duplicate file name exists.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900016 - Cross-device link
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900032 - Directory not empty
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 10
- */
-declare function moveDir(src: string, dest: string, mode: number, callback: AsyncCallback<void>): void;
-
-/**
- * Move directory.
- *
- * @param { string } src - source file path.
- * @param { string } dest - destination file path.
- * @param { number } mode - move mode when duplicate file name exists.
- * @param { AsyncCallback<void, Array<ConflictFiles>> } callback - Return the callback function.
- * @throws { BusinessError } 13900015 - File exists
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 10
- */
-declare function moveDir(src: string, dest: string, mode: number, callback: AsyncCallback<void, Array<ConflictFiles>>): void;
-
-/**
- * Move directory with sync interface.
- *
- * @param { string } src - source file path.
- * @param { string } dest - destination file path.
- * @param { number } [mode = 0] - move mode when duplicate file name exists.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900016 - Cross-device link
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900032 - Directory not empty
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 10
- */
-declare function moveDirSync(src: string, dest: string, mode?: number): void;
-
-/**
- * Move file.
- *
- * @param { string } src - source file path.
- * @param { string } dest - destination file path.
- * @param { number } [mode = 0] - move mode when duplicate file name exists.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900016 - Cross-device link
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900032 - Directory not empty
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Move file.
- *
- * @param { string } src - source file path.
- * @param { string } dest - destination file path.
- * @param { number } [mode = 0] - move mode when duplicate file name exists.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900016 - Cross-device link
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900032 - Directory not empty
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-declare function moveFile(src: string, dest: string, mode?: number): Promise<void>;
-
-/**
- * Move file.
- *
- * @param { string } src - source file path.
- * @param { string } dest - destination file path.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900016 - Cross-device link
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900032 - Directory not empty
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Move file.
- *
- * @param { string } src - source file path.
- * @param { string } dest - destination file path.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900016 - Cross-device link
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900032 - Directory not empty
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-declare function moveFile(src: string, dest: string, callback: AsyncCallback<void>): void;
-
-/**
- * Move file.
- *
- * @param { string } src - source file path.
- * @param { string } dest - destination file path.
- * @param { number } [mode = 0] - move mode when duplicate file name exists.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900016 - Cross-device link
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900032 - Directory not empty
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Move file.
- *
- * @param { string } src - source file path.
- * @param { string } dest - destination file path.
- * @param { number } [mode = 0] - move mode when duplicate file name exists.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900016 - Cross-device link
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900032 - Directory not empty
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-declare function moveFile(src: string, dest: string, mode: number, callback: AsyncCallback<void>): void;
-
-/**
- * Move file with sync interface.
- *
- * @param { string } src - source file path.
- * @param { string } dest - destination file path.
- * @param { number } [mode = 0] - move mode when duplicate file name exists.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900016 - Cross-device link
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900032 - Directory not empty
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Move file with sync interface.
- *
- * @param { string } src - source file path.
- * @param { string } dest - destination file path.
- * @param { number } [mode = 0] - move mode when duplicate file name exists.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900016 - Cross-device link
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900032 - Directory not empty
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-declare function moveFileSync(src: string, dest: string, mode?: number): void;
-
-/**
- * Open file.
- *
- * @param { string } path - path.
- * @param { number } [mode = OpenMode.READ_ONLY] - mode.
- * @returns { Promise<File> } Returns the File object in Promise mode to record the file descriptor.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900006 - No such device or address
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900017 - No such device
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900029 - Resource deadlock would occur
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Open file.
- *
- * @param { string } path - path.
- * @param { number } [mode = OpenMode.READ_ONLY] - mode.
- * @returns { Promise<File> } Returns the File object in Promise mode to record the file descriptor.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900006 - No such device or address
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900017 - No such device
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900029 - Resource deadlock would occur
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Open file.
- *
- * @param { string } path - path.
- * @param { number } [mode = OpenMode.READ_ONLY] - mode.
- * @returns { Promise<File> } Returns the File object in Promise mode to record the file descriptor.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900006 - No such device or address
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900017 - No such device
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900029 - Resource deadlock would occur
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-/**
- * Open file.
- *
- * @param { string } path - path.
- * @param { number } [mode = OpenMode.READ_ONLY] - mode.
- * @returns { Promise<File> } Returns the File object in Promise mode to record the file descriptor.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900006 - No such device or address
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900017 - No such device
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900029 - Resource deadlock would occur
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @throws { BusinessError } 13900044 - Network is unreachable
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 12
- */
-declare function open(path: string, mode?: number): Promise<File>;
-
-/**
- * Open file.
- *
- * @param { string } path - path.
- * @param { AsyncCallback<File> } callback - The callback is used to return the File object to record the file descriptor.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900006 - No such device or address
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900017 - No such device
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900029 - Resource deadlock would occur
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Open file.
- *
- * @param { string } path - path.
- * @param { AsyncCallback<File> } callback - The callback is used to return the File object to record the file descriptor.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900006 - No such device or address
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900017 - No such device
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900029 - Resource deadlock would occur
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Open file.
- *
- * @param { string } path - path.
- * @param { AsyncCallback<File> } callback - The callback is used to return the File object to record the file descriptor.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900006 - No such device or address
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900017 - No such device
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900029 - Resource deadlock would occur
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-declare function open(path: string, callback: AsyncCallback<File>): void;
-
-/**
- * Open file.
- *
- * @param { string } path - path.
- * @param { number } [mode = OpenMode.READ_ONLY] - mode.
- * @param { AsyncCallback<File> } callback - The callback is used to return the File object to record the file descriptor.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900006 - No such device or address
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900017 - No such device
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900029 - Resource deadlock would occur
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Open file.
- *
- * @param { string } path - path.
- * @param { number } [mode = OpenMode.READ_ONLY] - mode.
- * @param { AsyncCallback<File> } callback - The callback is used to return the File object to record the file descriptor.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900006 - No such device or address
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900017 - No such device
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900029 - Resource deadlock would occur
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Open file.
- *
- * @param { string } path - path.
- * @param { number } [mode = OpenMode.READ_ONLY] - mode.
- * @param { AsyncCallback<File> } callback - The callback is used to return the File object to record the file descriptor.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900006 - No such device or address
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900017 - No such device
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900029 - Resource deadlock would occur
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
- */
-declare function open(path: string, mode: number, callback: AsyncCallback<File>): void;
-
-/**
- * Open file with sync interface.
- *
- * @param { string } path - path.
- * @param { number } [mode = OpenMode.READ_ONLY] - mode.
- * @returns { File } Returns the File object to record the file descriptor.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900006 - No such device or address
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900017 - No such device
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900029 - Resource deadlock would occur
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Open file with sync interface.
- *
- * @param { string } path - path.
- * @param { number } [mode = OpenMode.READ_ONLY] - mode.
- * @returns { File } Returns the File object to record the file descriptor.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900006 - No such device or address
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900017 - No such device
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900029 - Resource deadlock would occur
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900038 - Value too large for defined data type
- * @throws { BusinessError } 13900041 - Quota exceeded
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Open file with sync interface.
- *
- * @param { string } path - path.
- * @param { number } [mode = OpenMode.READ_ONLY] - mode.
- * @returns { File } Returns the File object to record the file descriptor.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900006 - No such device or address
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
+ * @throws { BusinessError } 13900012 - Permission denied by the file system
  * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900017 - No such device
  * @throws { BusinessError } 13900018 - Not a directory
  * @throws { BusinessError } 13900019 - Is a directory
  * @throws { BusinessError } 13900020 - Invalid argument
+ * @throws { BusinessError } 13900021 - File table overflow
  * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900023 - Text file busy
  * @throws { BusinessError } 13900024 - File too large
  * @throws { BusinessError } 13900025 - No space left on device
  * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900029 - Resource deadlock would occur
+ * @throws { BusinessError } 13900028 - Too many links
  * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+ * @throws { BusinessError } 13900031 - Function not implemented
  * @throws { BusinessError } 13900034 - Operation would block
  * @throws { BusinessError } 13900038 - Value too large for defined data type
  * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
+ * @throws { BusinessError } 13900044 - Network is unreachable
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
+ * @since 20
  */
+function copy(srcUri: string, destUri: string, options?: CopyOptions): Promise<void>;
+
 /**
- * Open file with sync interface.
+ * Copy file or directory.
  *
- * @param { string } path - path.
- * @param { number } [mode = OpenMode.READ_ONLY] - mode.
- * @returns { File } Returns the File object to record the file descriptor.
+ * @param { string } srcUri - src uri.
+ * @param { string } destUri - dest uri.
+ * @param { AsyncCallback<void> } callback - Return the callback function.
+ * @throws { BusinessError } 401 - Parameter error.Possible causes:1.Mandatory parameters are left unspecified;
+ * <br>2.Incorrect parameter types.
  * @throws { BusinessError } 13900001 - Operation not permitted
  * @throws { BusinessError } 13900002 - No such file or directory
  * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900006 - No such device or address
+ * @throws { BusinessError } 13900005 - I/O error
  * @throws { BusinessError } 13900008 - Bad file descriptor
+ * @throws { BusinessError } 13900010 - Try again
  * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
+ * @throws { BusinessError } 13900012 - Permission denied by the file system
  * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900017 - No such device
  * @throws { BusinessError } 13900018 - Not a directory
  * @throws { BusinessError } 13900019 - Is a directory
  * @throws { BusinessError } 13900020 - Invalid argument
+ * @throws { BusinessError } 13900021 - File table overflow
  * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900023 - Text file busy
  * @throws { BusinessError } 13900024 - File too large
  * @throws { BusinessError } 13900025 - No space left on device
  * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900029 - Resource deadlock would occur
+ * @throws { BusinessError } 13900028 - Too many links
  * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+ * @throws { BusinessError } 13900031 - Function not implemented
  * @throws { BusinessError } 13900034 - Operation would block
  * @throws { BusinessError } 13900038 - Value too large for defined data type
  * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
- * @throws { BusinessError } 13900044 - Network is unreachable
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 12
+ * @since 20
  */
-declare function openSync(path: string, mode?: number): File;
+function copy(srcUri: string, destUri: string, callback: AsyncCallback<void>): void;
 
 /**
- * Read file.
- *
- * @param { number } fd - file descriptor.
- * @param { ArrayBuffer } buffer - buffer.
- * @param { object } [options] - options.
- * @returns { Promise<number> } Returns the number of file bytes read to buffer in promise mode.
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Read file.
- *
- * @param { number } fd - file descriptor.
- * @param { ArrayBuffer } buffer - buffer.
- * @param { object } [options] - options.
- * @returns { Promise<number> } Returns the number of file bytes read to buffer in promise mode.
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Read file.
+ * Copy file or directory.
  *
- * @param { number } fd - file descriptor.
- * @param { ArrayBuffer } buffer - buffer.
- * @param { ReadOptions } [options] - options.
- * @returns { Promise<number> } Returns the number of file bytes read to buffer in promise mode.
+ * @param { string } srcUri - src uri.
+ * @param { string } destUri - dest uri.
+ * @param { CopyOptions } options - options.
+ * @param { AsyncCallback<void> } callback - Return the callback function.
+ * @throws { BusinessError } 401 - Parameter error.Possible causes:1.Mandatory parameters are left unspecified;
+ * <br>2.Incorrect parameter types.
+ * @throws { BusinessError } 13900001 - Operation not permitted
+ * @throws { BusinessError } 13900002 - No such file or directory
  * @throws { BusinessError } 13900004 - Interrupted system call
  * @throws { BusinessError } 13900005 - I/O error
  * @throws { BusinessError } 13900008 - Bad file descriptor
  * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900013 - Bad address
+ * @throws { BusinessError } 13900011 - Out of memory
+ * @throws { BusinessError } 13900012 - Permission denied by the file system
+ * @throws { BusinessError } 13900015 - File exists
+ * @throws { BusinessError } 13900018 - Not a directory
  * @throws { BusinessError } 13900019 - Is a directory
  * @throws { BusinessError } 13900020 - Invalid argument
+ * @throws { BusinessError } 13900021 - File table overflow
+ * @throws { BusinessError } 13900022 - Too many open files
+ * @throws { BusinessError } 13900024 - File too large
+ * @throws { BusinessError } 13900025 - No space left on device
+ * @throws { BusinessError } 13900027 - Read-only file system
+ * @throws { BusinessError } 13900028 - Too many links
+ * @throws { BusinessError } 13900030 - File name too long
+ * @throws { BusinessError } 13900031 - Function not implemented
  * @throws { BusinessError } 13900034 - Operation would block
+ * @throws { BusinessError } 13900038 - Value too large for defined data type
+ * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
+ * @since 20
  */
+function copy(srcUri: string, destUri: string, options: CopyOptions, callback: AsyncCallback<void>): void;
+
 /**
- * Read file.
+ * Copy directory.
  *
- * @param { number } fd - file descriptor.
- * @param { ArrayBuffer } buffer - buffer.
- * @param { ReadOptions } [options] - options.
- * @returns { Promise<number> } Returns the number of file bytes read to buffer in promise mode.
+ * @param { string } src - source path.
+ * @param { string } dest - destination path.
+ * @param { number } [mode = 0] - mode.
+ * @returns { Promise<void> } The promise returned by the function.
+ * @throws { BusinessError } 13900002 - No such file or directory
  * @throws { BusinessError } 13900004 - Interrupted system call
  * @throws { BusinessError } 13900005 - I/O error
  * @throws { BusinessError } 13900008 - Bad file descriptor
  * @throws { BusinessError } 13900010 - Try again
+ * @throws { BusinessError } 13900011 - Out of memory
+ * @throws { BusinessError } 13900012 - Permission denied
  * @throws { BusinessError } 13900013 - Bad address
+ * @throws { BusinessError } 13900018 - Not a directory
  * @throws { BusinessError } 13900019 - Is a directory
  * @throws { BusinessError } 13900020 - Invalid argument
+ * @throws { BusinessError } 13900030 - File name too long
+ * @throws { BusinessError } 13900031 - Function not implemented
+ * @throws { BusinessError } 13900033 - Too many symbolic links encountered
  * @throws { BusinessError } 13900034 - Operation would block
+ * @throws { BusinessError } 13900038 - Value too large for defined data type
  * @throws { BusinessError } 13900042 - Unknown error
  * @throws { BusinessError } 13900044 - Network is unreachable
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 12
+ * @since 20
  */
-declare function read(
-  fd: number,
-  buffer: ArrayBuffer,
-  options?: ReadOptions
-): Promise<number>;
+function copyDir(src: string, dest: string, mode?: number): Promise<void>;
 
 /**
- * Read file.
- *
- * @param { number } fd - file descriptor.
- * @param { ArrayBuffer } buffer - buffer.
- * @param { AsyncCallback<number> } callback - The callback is used to return the number of file bytes read to buffer.
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Read file.
- *
- * @param { number } fd - file descriptor.
- * @param { ArrayBuffer } buffer - buffer.
- * @param { AsyncCallback<number> } callback - The callback is used to return the number of file bytes read to buffer.
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900042 - Unknown error
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Read file.
+ * Copy directory.
  *
- * @param { number } fd - file descriptor.
- * @param { ArrayBuffer } buffer - buffer.
- * @param { AsyncCallback<number> } callback - The callback is used to return the number of file bytes read to buffer.
+ * @param { string } src - source path.
+ * @param { string } dest - destination path.
+ * @param { AsyncCallback<void> } callback - Return the callback function.
+ * @throws { BusinessError } 13900002 - No such file or directory
  * @throws { BusinessError } 13900004 - Interrupted system call
  * @throws { BusinessError } 13900005 - I/O error
  * @throws { BusinessError } 13900008 - Bad file descriptor
  * @throws { BusinessError } 13900010 - Try again
+ * @throws { BusinessError } 13900011 - Out of memory
+ * @throws { BusinessError } 13900012 - Permission denied
  * @throws { BusinessError } 13900013 - Bad address
+ * @throws { BusinessError } 13900018 - Not a directory
  * @throws { BusinessError } 13900019 - Is a directory
  * @throws { BusinessError } 13900020 - Invalid argument
+ * @throws { BusinessError } 13900030 - File name too long
+ * @throws { BusinessError } 13900031 - Function not implemented
+ * @throws { BusinessError } 13900033 - Too many symbolic links encountered
  * @throws { BusinessError } 13900034 - Operation would block
+ * @throws { BusinessError } 13900038 - Value too large for defined data type
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
+ * @since 20
  */
-declare function read(fd: number, buffer: ArrayBuffer, callback: AsyncCallback<number>): void;
+function copyDir(src: string, dest: string, callback: AsyncCallback<void>): void;
 
 /**
- * Read file.
+ * Copy directory.
  *
- * @param { number } fd - file descriptor.
- * @param { ArrayBuffer } buffer - buffer.
- * @param { object } [options] - options.
- * @param { AsyncCallback<number> } callback - The callback is used to return the number of file bytes read to buffer.
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900042 - Unknown error
+ * @param { string } src - source path.
+ * @param { string } dest - destination path.
+ * @param { AsyncCallback<void, Array<ConflictFiles>> } callback - Return the callback function.
+ * @throws { BusinessError } 13900015 - File exists
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
+ * @since 20
  */
+function copyDir(src: string, dest: string, callback: AsyncCallback<void, Array<ConflictFiles>>): void;
+
 /**
- * Read file.
+ * Copy directory.
  *
- * @param { number } fd - file descriptor.
- * @param { ArrayBuffer } buffer - buffer.
- * @param { object } [options] - options.
- * @param { AsyncCallback<number> } callback - The callback is used to return the number of file bytes read to buffer.
+ * @param { string } src - source path.
+ * @param { string } dest - destination path.
+ * @param { number } mode - mode.
+ * @param { AsyncCallback<void> } callback - Return the callback function.
+ * @throws { BusinessError } 13900002 - No such file or directory
  * @throws { BusinessError } 13900004 - Interrupted system call
  * @throws { BusinessError } 13900005 - I/O error
  * @throws { BusinessError } 13900008 - Bad file descriptor
  * @throws { BusinessError } 13900010 - Try again
+ * @throws { BusinessError } 13900011 - Out of memory
+ * @throws { BusinessError } 13900012 - Permission denied
  * @throws { BusinessError } 13900013 - Bad address
+ * @throws { BusinessError } 13900018 - Not a directory
  * @throws { BusinessError } 13900019 - Is a directory
  * @throws { BusinessError } 13900020 - Invalid argument
+ * @throws { BusinessError } 13900030 - File name too long
+ * @throws { BusinessError } 13900031 - Function not implemented
+ * @throws { BusinessError } 13900033 - Too many symbolic links encountered
  * @throws { BusinessError } 13900034 - Operation would block
+ * @throws { BusinessError } 13900038 - Value too large for defined data type
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
+ * @since 20
  */
+function copyDir(src: string, dest: string, mode: number, callback: AsyncCallback<void>): void;
+
 /**
- * Read file.
+ * Copy directory.
  *
- * @param { number } fd - file descriptor.
- * @param { ArrayBuffer } buffer - buffer.
- * @param { ReadOptions } [options] - options.
- * @param { AsyncCallback<number> } callback - The callback is used to return the number of file bytes read to buffer.
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900042 - Unknown error
+ * @param { string } src - source path.
+ * @param { string } dest - destination path.
+ * @param { number } mode - mode.
+ * @param { AsyncCallback<void, Array<ConflictFiles>> } callback - Return the callback function.
+ * @throws { BusinessError } 13900015 - File exists
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
+ * @since 20
  */
-declare function read(
-  fd: number,
-  buffer: ArrayBuffer,
-  options: ReadOptions,
-  callback: AsyncCallback<number>
-): void;
+function copyDir(src: string, dest: string, mode: number, callback: AsyncCallback<void, Array<ConflictFiles>>): void;
 
 /**
- * Read file with sync interface.
- *
- * @param { number } fd - file descriptor.
- * @param { ArrayBuffer } buffer - buffer.
- * @param { object } [options] - options.
- * @returns { number } Returns the number of file bytes read to buffer.
+ * Copy directory with sync interface.
+ *
+ * @param { string } src - source path.
+ * @param { string } dest - destination path.
+ * @param { number } [mode = 0] - mode.
+ * @throws { BusinessError } 13900002 - No such file or directory
  * @throws { BusinessError } 13900004 - Interrupted system call
  * @throws { BusinessError } 13900005 - I/O error
  * @throws { BusinessError } 13900008 - Bad file descriptor
  * @throws { BusinessError } 13900010 - Try again
+ * @throws { BusinessError } 13900011 - Out of memory
+ * @throws { BusinessError } 13900012 - Permission denied
  * @throws { BusinessError } 13900013 - Bad address
+ * @throws { BusinessError } 13900015 - File exists
+ * @throws { BusinessError } 13900018 - Not a directory
  * @throws { BusinessError } 13900019 - Is a directory
  * @throws { BusinessError } 13900020 - Invalid argument
+ * @throws { BusinessError } 13900030 - File name too long
+ * @throws { BusinessError } 13900031 - Function not implemented
+ * @throws { BusinessError } 13900033 - Too many symbolic links encountered
  * @throws { BusinessError } 13900034 - Operation would block
+ * @throws { BusinessError } 13900038 - Value too large for defined data type
  * @throws { BusinessError } 13900042 - Unknown error
+ * @throws { BusinessError } 13900044 - Network is unreachable
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
+ * @since 20
  */
+function copyDirSync(src: string, dest: string, mode?: number): void;
+
 /**
- * Read file with sync interface.
+ * Copy file.
  *
- * @param { number } fd - file descriptor.
- * @param { ArrayBuffer } buffer - buffer.
- * @param { object } [options] - options.
- * @returns { number } Returns the number of file bytes read to buffer.
+ * @param { string | number } src - src.
+ * @param { string | number } dest - dest.
+ * @param { number } [mode = 0] - mode.
+ * @returns { Promise<void> } The promise returned by the function.
+ * @throws { BusinessError } 13900002 - No such file or directory
  * @throws { BusinessError } 13900004 - Interrupted system call
  * @throws { BusinessError } 13900005 - I/O error
  * @throws { BusinessError } 13900008 - Bad file descriptor
  * @throws { BusinessError } 13900010 - Try again
+ * @throws { BusinessError } 13900011 - Out of memory
+ * @throws { BusinessError } 13900012 - Permission denied
  * @throws { BusinessError } 13900013 - Bad address
+ * @throws { BusinessError } 13900018 - Not a directory
  * @throws { BusinessError } 13900019 - Is a directory
  * @throws { BusinessError } 13900020 - Invalid argument
+ * @throws { BusinessError } 13900030 - File name too long
+ * @throws { BusinessError } 13900031 - Function not implemented
+ * @throws { BusinessError } 13900033 - Too many symbolic links encountered
  * @throws { BusinessError } 13900034 - Operation would block
+ * @throws { BusinessError } 13900038 - Value too large for defined data type
  * @throws { BusinessError } 13900042 - Unknown error
+ * @throws { BusinessError } 13900044 - Network is unreachable
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @crossplatform
- * @since 10
+ * @atomicservice
+ * @since 20
  */
+function copyFile(src: string | number, dest: string | number, mode?: number): Promise<void>;
+
 /**
- * Read file with sync interface.
+ * Copy file.
  *
- * @param { number } fd - file descriptor.
- * @param { ArrayBuffer } buffer - buffer.
- * @param { ReadOptions } [options] - options.
- * @returns { number } Returns the number of file bytes read to buffer.
+ * @param { string | number } src - src.
+ * @param { string | number } dest - dest.
+ * @param { AsyncCallback<void> } callback - Return the callback function.
+ * @throws { BusinessError } 13900002 - No such file or directory
  * @throws { BusinessError } 13900004 - Interrupted system call
  * @throws { BusinessError } 13900005 - I/O error
  * @throws { BusinessError } 13900008 - Bad file descriptor
  * @throws { BusinessError } 13900010 - Try again
+ * @throws { BusinessError } 13900011 - Out of memory
+ * @throws { BusinessError } 13900012 - Permission denied
  * @throws { BusinessError } 13900013 - Bad address
+ * @throws { BusinessError } 13900018 - Not a directory
  * @throws { BusinessError } 13900019 - Is a directory
  * @throws { BusinessError } 13900020 - Invalid argument
+ * @throws { BusinessError } 13900030 - File name too long
+ * @throws { BusinessError } 13900031 - Function not implemented
+ * @throws { BusinessError } 13900033 - Too many symbolic links encountered
  * @throws { BusinessError } 13900034 - Operation would block
+ * @throws { BusinessError } 13900038 - Value too large for defined data type
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @crossplatform
  * @atomicservice
- * @since 11
+ * @since 20
  */
+function copyFile(src: string | number, dest: string | number, callback: AsyncCallback<void>): void;
+
 /**
- * Read file with sync interface.
+ * Copy file.
  *
- * @param { number } fd - file descriptor.
- * @param { ArrayBuffer } buffer - buffer.
- * @param { ReadOptions } [options] - options.
- * @returns { number } Returns the number of file bytes read to buffer.
+ * @param { string | number } src - src.
+ * @param { string | number } dest - dest.
+ * @param { number } [mode = 0] - mode.
+ * @param { AsyncCallback<void> } callback - Return the callback function.
+ * @throws { BusinessError } 13900002 - No such file or directory
  * @throws { BusinessError } 13900004 - Interrupted system call
  * @throws { BusinessError } 13900005 - I/O error
  * @throws { BusinessError } 13900008 - Bad file descriptor
  * @throws { BusinessError } 13900010 - Try again
+ * @throws { BusinessError } 13900011 - Out of memory
+ * @throws { BusinessError } 13900012 - Permission denied
  * @throws { BusinessError } 13900013 - Bad address
+ * @throws { BusinessError } 13900018 - Not a directory
  * @throws { BusinessError } 13900019 - Is a directory
  * @throws { BusinessError } 13900020 - Invalid argument
+ * @throws { BusinessError } 13900030 - File name too long
+ * @throws { BusinessError } 13900031 - Function not implemented
+ * @throws { BusinessError } 13900033 - Too many symbolic links encountered
  * @throws { BusinessError } 13900034 - Operation would block
+ * @throws { BusinessError } 13900038 - Value too large for defined data type
  * @throws { BusinessError } 13900042 - Unknown error
- * @throws { BusinessError } 13900044 - Network is unreachable
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @crossplatform
  * @atomicservice
- * @since 12
+ * @since 20
  */
-declare function readSync(
-  fd: number,
-  buffer: ArrayBuffer,
-  options?: ReadOptions
-): number;
+function copyFile(
+  src: string | number,
+  dest: string | number,
+  mode: number,
+  callback: AsyncCallback<void>
+): void;
 
 /**
- * Read content line by line.
+ * Copy file with sync interface.
  *
- * @param { string } filePath - file path.
- * @param { Options } [options] - optional parameters
- * @returns { Promise<ReaderIterator> } Returns the iterator object in promise mode.
+ * @param { string | number } src - src.
+ * @param { string | number } dest - dest.
+ * @param { number } [mode = 0] - mode.
  * @throws { BusinessError } 13900002 - No such file or directory
+ * @throws { BusinessError } 13900004 - Interrupted system call
+ * @throws { BusinessError } 13900005 - I/O error
+ * @throws { BusinessError } 13900008 - Bad file descriptor
+ * @throws { BusinessError } 13900010 - Try again
+ * @throws { BusinessError } 13900011 - Out of memory
  * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900015 - File exists
+ * @throws { BusinessError } 13900013 - Bad address
+ * @throws { BusinessError } 13900018 - Not a directory
  * @throws { BusinessError } 13900019 - Is a directory
  * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900022 - Too many open files
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
  * @throws { BusinessError } 13900030 - File name too long
+ * @throws { BusinessError } 13900031 - Function not implemented
  * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
+ * @throws { BusinessError } 13900034 - Operation would block
+ * @throws { BusinessError } 13900038 - Value too large for defined data type
  * @throws { BusinessError } 13900042 - Unknown error
+ * @throws { BusinessError } 13900044 - Network is unreachable
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 11
+ * @crossplatform
+ * @atomicservice
+ * @since 20
  */
+function copyFileSync(src: string | number, dest: string | number, mode?: number): void;
+
 /**
- * Read content line by line.
+ * Create class Stream.
  *
- * @param { string } filePath - file path.
- * @param { Options } [options] - optional parameters
- * @returns { Promise<ReaderIterator> } Returns the iterator object in promise mode.
+ * @param { string } path - path.
+ * @param { string } mode - mode.
+ * @returns { Promise<Stream> } return Promise
+ * @throws { BusinessError } 13900001 - Operation not permitted
  * @throws { BusinessError } 13900002 - No such file or directory
+ * @throws { BusinessError } 13900004 - Interrupted system call
+ * @throws { BusinessError } 13900006 - No such device or address
+ * @throws { BusinessError } 13900008 - Bad file descriptor
+ * @throws { BusinessError } 13900011 - Out of memory
  * @throws { BusinessError } 13900012 - Permission denied
+ * @throws { BusinessError } 13900013 - Bad address
+ * @throws { BusinessError } 13900014 - Device or resource busy
  * @throws { BusinessError } 13900015 - File exists
+ * @throws { BusinessError } 13900017 - No such device
+ * @throws { BusinessError } 13900018 - Not a directory
  * @throws { BusinessError } 13900019 - Is a directory
  * @throws { BusinessError } 13900020 - Invalid argument
  * @throws { BusinessError } 13900022 - Too many open files
+ * @throws { BusinessError } 13900023 - Text file busy
+ * @throws { BusinessError } 13900024 - File too large
  * @throws { BusinessError } 13900025 - No space left on device
  * @throws { BusinessError } 13900027 - Read-only file system
+ * @throws { BusinessError } 13900029 - Resource deadlock would occur
  * @throws { BusinessError } 13900030 - File name too long
  * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+ * @throws { BusinessError } 13900034 - Operation would block
+ * @throws { BusinessError } 13900038 - Value too large for defined data type
  * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
  * @throws { BusinessError } 13900044 - Network is unreachable
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 12
+ * @since 20
  */
-declare function readLines(filePath: string, options?: Options): Promise<ReaderIterator>;
+function createStream(path: string, mode: string): Promise<Stream>;
 
 /**
- * Read content line by line.
+ * Create class Stream.
  *
- * @param { string } filePath - file path.
- * @param { AsyncCallback<ReaderIterator> } callback - The callback is used to return the iterator object.
+ * @param { string } path - path.
+ * @param { string } mode - mode.
+ * @param { AsyncCallback<Stream> } callback - callback.
+ * @throws { BusinessError } 13900001 - Operation not permitted
  * @throws { BusinessError } 13900002 - No such file or directory
+ * @throws { BusinessError } 13900004 - Interrupted system call
+ * @throws { BusinessError } 13900006 - No such device or address
+ * @throws { BusinessError } 13900008 - Bad file descriptor
+ * @throws { BusinessError } 13900011 - Out of memory
  * @throws { BusinessError } 13900012 - Permission denied
+ * @throws { BusinessError } 13900013 - Bad address
+ * @throws { BusinessError } 13900014 - Device or resource busy
  * @throws { BusinessError } 13900015 - File exists
+ * @throws { BusinessError } 13900017 - No such device
+ * @throws { BusinessError } 13900018 - Not a directory
  * @throws { BusinessError } 13900019 - Is a directory
  * @throws { BusinessError } 13900020 - Invalid argument
  * @throws { BusinessError } 13900022 - Too many open files
+ * @throws { BusinessError } 13900023 - Text file busy
+ * @throws { BusinessError } 13900024 - File too large
  * @throws { BusinessError } 13900025 - No space left on device
  * @throws { BusinessError } 13900027 - Read-only file system
+ * @throws { BusinessError } 13900029 - Resource deadlock would occur
  * @throws { BusinessError } 13900030 - File name too long
  * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+ * @throws { BusinessError } 13900034 - Operation would block
+ * @throws { BusinessError } 13900038 - Value too large for defined data type
  * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 11
+ * @since 20
  */
-declare function readLines(filePath: string, callback: AsyncCallback<ReaderIterator>): void;
+function createStream(path: string, mode: string, callback: AsyncCallback<Stream>): void;
 
 /**
- * Read content line by line.
+ * Create class Stream with sync interface.
  *
- * @param { string } filePath - file path.
- * @param { Options } options - optional parameters
- * @param { AsyncCallback<ReaderIterator> } callback - The callback is used to return the iterator object.
+ * @param { string } path - path.
+ * @param { string } mode - mode.
+ * @returns { Stream } createStream
+ * @throws { BusinessError } 13900001 - Operation not permitted
  * @throws { BusinessError } 13900002 - No such file or directory
+ * @throws { BusinessError } 13900004 - Interrupted system call
+ * @throws { BusinessError } 13900006 - No such device or address
+ * @throws { BusinessError } 13900008 - Bad file descriptor
+ * @throws { BusinessError } 13900011 - Out of memory
  * @throws { BusinessError } 13900012 - Permission denied
+ * @throws { BusinessError } 13900013 - Bad address
+ * @throws { BusinessError } 13900014 - Device or resource busy
  * @throws { BusinessError } 13900015 - File exists
+ * @throws { BusinessError } 13900017 - No such device
+ * @throws { BusinessError } 13900018 - Not a directory
  * @throws { BusinessError } 13900019 - Is a directory
  * @throws { BusinessError } 13900020 - Invalid argument
  * @throws { BusinessError } 13900022 - Too many open files
+ * @throws { BusinessError } 13900023 - Text file busy
+ * @throws { BusinessError } 13900024 - File too large
  * @throws { BusinessError } 13900025 - No space left on device
  * @throws { BusinessError } 13900027 - Read-only file system
+ * @throws { BusinessError } 13900029 - Resource deadlock would occur
  * @throws { BusinessError } 13900030 - File name too long
  * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+ * @throws { BusinessError } 13900034 - Operation would block
+ * @throws { BusinessError } 13900038 - Value too large for defined data type
  * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
+ * @throws { BusinessError } 13900044 - Network is unreachable
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 11
+ * @since 20
  */
-declare function readLines(filePath: string, options: Options, callback: AsyncCallback<ReaderIterator>): void;
+function createStreamSync(path: string, mode: string): Stream;
 
 /**
- * Read content line by line with sync interface.
+ * Create class RandomAccessFile.
  *
- * @param { string } filePath - file path.
- * @param { Options } [options] - optional parameters
- * @returns { ReaderIterator } Returns the iterator object.
+ * @param { string | File } file - file path, object.
+ * @param { number } [mode = OpenMode.READ_ONLY] - mode.
+ * @param { RandomAccessFileOptions } [options] - RandomAccessFile options
+ * @returns { Promise<RandomAccessFile> } Returns the RandomAccessFile object which has been created in promise mode.
+ * @throws { BusinessError } 13900001 - Operation not permitted
  * @throws { BusinessError } 13900002 - No such file or directory
+ * @throws { BusinessError } 13900004 - Interrupted system call
+ * @throws { BusinessError } 13900006 - No such device or address
+ * @throws { BusinessError } 13900008 - Bad file descriptor
+ * @throws { BusinessError } 13900011 - Out of memory
  * @throws { BusinessError } 13900012 - Permission denied
+ * @throws { BusinessError } 13900013 - Bad address
+ * @throws { BusinessError } 13900014 - Device or resource busy
  * @throws { BusinessError } 13900015 - File exists
+ * @throws { BusinessError } 13900017 - No such device
+ * @throws { BusinessError } 13900018 - Not a directory
  * @throws { BusinessError } 13900019 - Is a directory
  * @throws { BusinessError } 13900020 - Invalid argument
  * @throws { BusinessError } 13900022 - Too many open files
+ * @throws { BusinessError } 13900023 - Text file busy
+ * @throws { BusinessError } 13900024 - File too large
  * @throws { BusinessError } 13900025 - No space left on device
  * @throws { BusinessError } 13900027 - Read-only file system
+ * @throws { BusinessError } 13900029 - Resource deadlock would occur
  * @throws { BusinessError } 13900030 - File name too long
  * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+ * @throws { BusinessError } 13900034 - Operation would block
+ * @throws { BusinessError } 13900038 - Value too large for defined data type
  * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
+ * @throws { BusinessError } 13900044 - Network is unreachable
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 11
+ * @since 20
  */
+function createRandomAccessFile(file: string | File, mode?: number,
+  options?: RandomAccessFileOptions): Promise<RandomAccessFile>;
+
 /**
- * Read content line by line with sync interface.
+ * Create class RandomAccessFile.
  *
- * @param { string } filePath - file path.
- * @param { Options } [options] - optional parameters
- * @returns { ReaderIterator } Returns the iterator object.
+ * @param { string | File } file - file path, object.
+ * @param { AsyncCallback<RandomAccessFile> } callback - The callback is used to return the RandomAccessFile object which has been created.
+ * @throws { BusinessError } 13900001 - Operation not permitted
  * @throws { BusinessError } 13900002 - No such file or directory
+ * @throws { BusinessError } 13900004 - Interrupted system call
+ * @throws { BusinessError } 13900006 - No such device or address
+ * @throws { BusinessError } 13900008 - Bad file descriptor
+ * @throws { BusinessError } 13900011 - Out of memory
  * @throws { BusinessError } 13900012 - Permission denied
+ * @throws { BusinessError } 13900013 - Bad address
+ * @throws { BusinessError } 13900014 - Device or resource busy
  * @throws { BusinessError } 13900015 - File exists
+ * @throws { BusinessError } 13900017 - No such device
+ * @throws { BusinessError } 13900018 - Not a directory
  * @throws { BusinessError } 13900019 - Is a directory
  * @throws { BusinessError } 13900020 - Invalid argument
  * @throws { BusinessError } 13900022 - Too many open files
+ * @throws { BusinessError } 13900023 - Text file busy
+ * @throws { BusinessError } 13900024 - File too large
  * @throws { BusinessError } 13900025 - No space left on device
  * @throws { BusinessError } 13900027 - Read-only file system
+ * @throws { BusinessError } 13900029 - Resource deadlock would occur
  * @throws { BusinessError } 13900030 - File name too long
  * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+ * @throws { BusinessError } 13900034 - Operation would block
+ * @throws { BusinessError } 13900038 - Value too large for defined data type
  * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
- * @throws { BusinessError } 13900044 - Network is unreachable
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 12
+ * @since 20
  */
-declare function readLinesSync(filePath: string, options?: Options): ReaderIterator;
+function createRandomAccessFile(file: string | File, callback: AsyncCallback<RandomAccessFile>): void;
 
 /**
- * Read text.
+ * Create class RandomAccessFile.
  *
- * @param { string } filePath - file path.
- * @param { object } [options] - options.
- * @returns { Promise<string> } Returns the contents of the read file in promise mode.
+ * @param { string | File } file - file path, object.
+ * @param { number } [mode = OpenMode.READ_ONLY] - mode.
+ * @param { AsyncCallback<RandomAccessFile> } callback - The callback is used to return the RandomAccessFile object which has been created.
  * @throws { BusinessError } 13900001 - Operation not permitted
+ * @throws { BusinessError } 13900002 - No such file or directory
  * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
+ * @throws { BusinessError } 13900006 - No such device or address
  * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
+ * @throws { BusinessError } 13900011 - Out of memory
+ * @throws { BusinessError } 13900012 - Permission denied
  * @throws { BusinessError } 13900013 - Bad address
+ * @throws { BusinessError } 13900014 - Device or resource busy
+ * @throws { BusinessError } 13900015 - File exists
+ * @throws { BusinessError } 13900017 - No such device
+ * @throws { BusinessError } 13900018 - Not a directory
  * @throws { BusinessError } 13900019 - Is a directory
  * @throws { BusinessError } 13900020 - Invalid argument
+ * @throws { BusinessError } 13900022 - Too many open files
+ * @throws { BusinessError } 13900023 - Text file busy
  * @throws { BusinessError } 13900024 - File too large
  * @throws { BusinessError } 13900025 - No space left on device
+ * @throws { BusinessError } 13900027 - Read-only file system
+ * @throws { BusinessError } 13900029 - Resource deadlock would occur
+ * @throws { BusinessError } 13900030 - File name too long
+ * @throws { BusinessError } 13900033 - Too many symbolic links encountered
  * @throws { BusinessError } 13900034 - Operation would block
+ * @throws { BusinessError } 13900038 - Value too large for defined data type
  * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
+ * @since 20
  */
+function createRandomAccessFile(file: string | File, mode: number, callback: AsyncCallback<RandomAccessFile>): void;
+
 /**
- * Read text.
+ * Create class RandomAccessFile with sync interface.
  *
- * @param { string } filePath - file path.
- * @param { object } [options] - options.
- * @returns { Promise<string> } Returns the contents of the read file in promise mode.
+ * @param { string | File } file - file path, object.
+ * @param { number } [mode = OpenMode.READ_ONLY] - mode.
+ * @param { RandomAccessFileOptions } [options] - RandomAccessFile options
+ * @returns { RandomAccessFile } Returns the RandomAccessFile object which has been created.
  * @throws { BusinessError } 13900001 - Operation not permitted
+ * @throws { BusinessError } 13900002 - No such file or directory
  * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
+ * @throws { BusinessError } 13900006 - No such device or address
  * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
+ * @throws { BusinessError } 13900011 - Out of memory
+ * @throws { BusinessError } 13900012 - Permission denied
  * @throws { BusinessError } 13900013 - Bad address
+ * @throws { BusinessError } 13900014 - Device or resource busy
+ * @throws { BusinessError } 13900015 - File exists
+ * @throws { BusinessError } 13900017 - No such device
+ * @throws { BusinessError } 13900018 - Not a directory
  * @throws { BusinessError } 13900019 - Is a directory
  * @throws { BusinessError } 13900020 - Invalid argument
+ * @throws { BusinessError } 13900022 - Too many open files
+ * @throws { BusinessError } 13900023 - Text file busy
  * @throws { BusinessError } 13900024 - File too large
  * @throws { BusinessError } 13900025 - No space left on device
+ * @throws { BusinessError } 13900027 - Read-only file system
+ * @throws { BusinessError } 13900029 - Resource deadlock would occur
+ * @throws { BusinessError } 13900030 - File name too long
+ * @throws { BusinessError } 13900033 - Too many symbolic links encountered
  * @throws { BusinessError } 13900034 - Operation would block
+ * @throws { BusinessError } 13900038 - Value too large for defined data type
  * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
+ * @throws { BusinessError } 13900044 - Network is unreachable
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
+ * @since 20
  */
+function createRandomAccessFileSync(file: string | File, mode?: number,
+  options?: RandomAccessFileOptions): RandomAccessFile;
+
 /**
- * Read text.
+ * Create file read stream.
  *
- * @param { string } filePath - file path.
- * @param { ReadTextOptions } [options] - options.
- * @returns { Promise<string> } Returns the contents of the read file in promise mode.
+ * @param { string } path - file path.
+ * @param { ReadStreamOptions } [options] - Optional parameters for ReadStream.
+ * @returns { ReadStream } Returns the ReadStream object which has been created.
+ * @throws { BusinessError } 401 - Parameter error
  * @throws { BusinessError } 13900001 - Operation not permitted
+ * @throws { BusinessError } 13900002 - No such file or directory
  * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900013 - Bad address
+ * @throws { BusinessError } 13900011 - Out of memory
+ * @throws { BusinessError } 13900012 - Permission denied
+ * @throws { BusinessError } 13900017 - No such device
  * @throws { BusinessError } 13900019 - Is a directory
  * @throws { BusinessError } 13900020 - Invalid argument
+ * @throws { BusinessError } 13900022 - Too many open files
  * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900034 - Operation would block
+ * @throws { BusinessError } 13900030 - File name too long
+ * @throws { BusinessError } 13900038 - Value too large for defined data type
  * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
+ * @throws { BusinessError } 13900044 - Network is unreachable
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
+ * @since 20
  */
+function createReadStream(path: string, options?: ReadStreamOptions): ReadStream;
+
 /**
- * Read text.
+ * Create file write stream.
  *
- * @param { string } filePath - file path.
- * @param { ReadTextOptions } [options] - options.
- * @returns { Promise<string> } Returns the contents of the read file in promise mode.
+ * @param { string } path - file path.
+ * @param { WriteStreamOptions } [options] - Optional parameters for ReadStream.
+ * @returns { WriteStream } Returns the WriteStream object which has been created.
+ * @throws { BusinessError } 401 - Parameter error
  * @throws { BusinessError } 13900001 - Operation not permitted
+ * @throws { BusinessError } 13900002 - No such file or directory
  * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900013 - Bad address
+ * @throws { BusinessError } 13900011 - Out of memory
+ * @throws { BusinessError } 13900012 - Permission denied
+ * @throws { BusinessError } 13900015 - File exists
+ * @throws { BusinessError } 13900017 - No such device
  * @throws { BusinessError } 13900019 - Is a directory
  * @throws { BusinessError } 13900020 - Invalid argument
+ * @throws { BusinessError } 13900022 - Too many open files
  * @throws { BusinessError } 13900024 - File too large
  * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900034 - Operation would block
+ * @throws { BusinessError } 13900027 - Read-only file system
+ * @throws { BusinessError } 13900030 - File name too long
+ * @throws { BusinessError } 13900038 - Value too large for defined data type
  * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
- * @throws { BusinessError } 13900044 - Network is unreachable
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 12
+ * @since 20
  */
-declare function readText(
-  filePath: string,
-  options?: ReadTextOptions
-): Promise<string>;
+function createWriteStream(path: string, options?: WriteStreamOptions): WriteStream;
 
 /**
- * Read text.
+ * Create watcher to listen for file changes.
  *
- * @param { string } filePath - file path.
- * @param { AsyncCallback<string> } callback - The callback is used to return the contents of the read file.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
+ * @param { string } path - path.
+ * @param { number } events - listened events.
+ * @param { WatchEventListener } listener - Callback to invoke when an event of the specified type occurs.
+ * @returns { Watcher } Returns the Watcher object which has been created.
+ * @throws { BusinessError } 13900002 - No such file or directory
  * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
+ * @throws { BusinessError } 13900011 - Out of memory
+ * @throws { BusinessError } 13900012 - Permission denied
  * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900019 - Is a directory
+ * @throws { BusinessError } 13900015 - File exists
+ * @throws { BusinessError } 13900018 - Not a directory
  * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900024 - File too large
+ * @throws { BusinessError } 13900021 - File table overflow
+ * @throws { BusinessError } 13900022 - Too many open files
  * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900041 - Quota exceeded
+ * @throws { BusinessError } 13900030 - File name too long
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
+ * @since 20
  */
+function createWatcher(path: string, events: number, listener: WatchEventListener): Watcher;
+
 /**
- * Read text.
+ * Duplicate fd to File Object.
  *
- * @param { string } filePath - file path.
- * @param { AsyncCallback<string> } callback - The callback is used to return the contents of the read file.
- * @throws { BusinessError } 13900001 - Operation not permitted
+ * @param { number } fd - fd.
+ * @returns { File } return File
  * @throws { BusinessError } 13900004 - Interrupted system call
  * @throws { BusinessError } 13900005 - I/O error
  * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900019 - Is a directory
+ * @throws { BusinessError } 13900014 - Device or resource busy
  * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900041 - Quota exceeded
+ * @throws { BusinessError } 13900022 - Too many open files
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
+ * @since 20
  */
+function dup(fd: number): File;
+
 /**
- * Read text.
+ * Synchronize file metadata.
  *
- * @param { string } filePath - file path.
- * @param { AsyncCallback<string> } callback - The callback is used to return the contents of the read file.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900004 - Interrupted system call
+ * @param { number } fd - fd.
+ * @returns { Promise<void> } The promise returned by the function.
  * @throws { BusinessError } 13900005 - I/O error
  * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900019 - Is a directory
  * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900024 - File too large
  * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900034 - Operation would block
+ * @throws { BusinessError } 13900027 - Read-only file system
  * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @crossplatform
- * @atomicservice
- * @since 11
+ * @since 20
  */
-declare function readText(filePath: string, callback: AsyncCallback<string>): void;
+function fdatasync(fd: number): Promise<void>;
 
 /**
- * Read text.
+ * Synchronize file metadata.
  *
- * @param { string } filePath - file path.
- * @param { object } [options] - options.
- * @param { AsyncCallback<string> } callback - The callback is used to return the contents of the read file.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900004 - Interrupted system call
+ * @param { number } fd - fd.
+ * @param { AsyncCallback<void> } callback - Return the callback function.
  * @throws { BusinessError } 13900005 - I/O error
  * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900019 - Is a directory
  * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900024 - File too large
  * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900034 - Operation would block
+ * @throws { BusinessError } 13900027 - Read-only file system
  * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
+ * @crossplatform
+ * @since 20
  */
+function fdatasync(fd: number, callback: AsyncCallback<void>): void;
+
 /**
- * Read text.
+ * Synchronize file metadata with sync interface.
  *
- * @param { string } filePath - file path.
- * @param { object } [options] - options.
- * @param { AsyncCallback<string> } callback - The callback is used to return the contents of the read file.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900004 - Interrupted system call
+ * @param { number } fd - fd.
  * @throws { BusinessError } 13900005 - I/O error
  * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900019 - Is a directory
  * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900024 - File too large
  * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900034 - Operation would block
+ * @throws { BusinessError } 13900027 - Read-only file system
  * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @crossplatform
- * @since 10
+ * @since 20
  */
+function fdatasyncSync(fd: number): void;
+
 /**
- * Read text.
+ * Create class Stream by using fd.
  *
- * @param { string } filePath - file path.
- * @param { ReadTextOptions } [options] - options.
- * @param { AsyncCallback<string> } callback - The callback is used to return the contents of the read file.
+ * @param { number } fd - fd.
+ * @param { string } mode - mode.
+ * @returns { Promise<Stream> } Returns the Stream object in promise mode.
  * @throws { BusinessError } 13900001 - Operation not permitted
+ * @throws { BusinessError } 13900002 - No such file or directory
  * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
+ * @throws { BusinessError } 13900006 - No such device or address
  * @throws { BusinessError } 13900008 - Bad file descriptor
  * @throws { BusinessError } 13900010 - Try again
+ * @throws { BusinessError } 13900011 - Out of memory
+ * @throws { BusinessError } 13900012 - Permission denied
  * @throws { BusinessError } 13900013 - Bad address
+ * @throws { BusinessError } 13900014 - Device or resource busy
+ * @throws { BusinessError } 13900015 - File exists
+ * @throws { BusinessError } 13900017 - No such device
+ * @throws { BusinessError } 13900018 - Not a directory
  * @throws { BusinessError } 13900019 - Is a directory
  * @throws { BusinessError } 13900020 - Invalid argument
+ * @throws { BusinessError } 13900022 - Too many open files
+ * @throws { BusinessError } 13900023 - Text file busy
  * @throws { BusinessError } 13900024 - File too large
  * @throws { BusinessError } 13900025 - No space left on device
+ * @throws { BusinessError } 13900027 - Read-only file system
+ * @throws { BusinessError } 13900029 - Resource deadlock would occur
+ * @throws { BusinessError } 13900030 - File name too long
+ * @throws { BusinessError } 13900033 - Too many symbolic links encountered
  * @throws { BusinessError } 13900034 - Operation would block
+ * @throws { BusinessError } 13900038 - Value too large for defined data type
  * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
+ * @since 20
  */
-declare function readText(
-  filePath: string,
-  options: ReadTextOptions,
-  callback: AsyncCallback<string>
-): void;
+function fdopenStream(fd: number, mode: string): Promise<Stream>;
 
 /**
- * Read text with sync interface.
+ * Create class Stream by using fd.
  *
- * @param { string } filePath - file path.
- * @param { object } [options] - options.
- * @returns { string } Returns the contents of the read file.
+ * @param { number } fd - fd.
+ * @param { string } mode - mode.
+ * @param { AsyncCallback<Stream> } callback - The callback is used to return the Stream object.
  * @throws { BusinessError } 13900001 - Operation not permitted
+ * @throws { BusinessError } 13900002 - No such file or directory
  * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
+ * @throws { BusinessError } 13900006 - No such device or address
  * @throws { BusinessError } 13900008 - Bad file descriptor
  * @throws { BusinessError } 13900010 - Try again
+ * @throws { BusinessError } 13900011 - Out of memory
+ * @throws { BusinessError } 13900012 - Permission denied
  * @throws { BusinessError } 13900013 - Bad address
+ * @throws { BusinessError } 13900014 - Device or resource busy
+ * @throws { BusinessError } 13900015 - File exists
+ * @throws { BusinessError } 13900017 - No such device
+ * @throws { BusinessError } 13900018 - Not a directory
  * @throws { BusinessError } 13900019 - Is a directory
  * @throws { BusinessError } 13900020 - Invalid argument
+ * @throws { BusinessError } 13900022 - Too many open files
+ * @throws { BusinessError } 13900023 - Text file busy
  * @throws { BusinessError } 13900024 - File too large
  * @throws { BusinessError } 13900025 - No space left on device
+ * @throws { BusinessError } 13900027 - Read-only file system
+ * @throws { BusinessError } 13900029 - Resource deadlock would occur
+ * @throws { BusinessError } 13900030 - File name too long
+ * @throws { BusinessError } 13900033 - Too many symbolic links encountered
  * @throws { BusinessError } 13900034 - Operation would block
+ * @throws { BusinessError } 13900038 - Value too large for defined data type
  * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
+ * @since 20
  */
+function fdopenStream(fd: number, mode: string, callback: AsyncCallback<Stream>): void;
+
 /**
- * Read text with sync interface.
+ * Create class Stream by using fd with sync interface.
  *
- * @param { string } filePath - file path.
- * @param { object } [options] - options.
- * @returns { string } Returns the contents of the read file.
+ * @param { number } fd - fd.
+ * @param { string } mode - mode.
+ * @returns { Stream } Returns the Stream object.
  * @throws { BusinessError } 13900001 - Operation not permitted
+ * @throws { BusinessError } 13900002 - No such file or directory
  * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
+ * @throws { BusinessError } 13900006 - No such device or address
  * @throws { BusinessError } 13900008 - Bad file descriptor
  * @throws { BusinessError } 13900010 - Try again
+ * @throws { BusinessError } 13900011 - Out of memory
+ * @throws { BusinessError } 13900012 - Permission denied
  * @throws { BusinessError } 13900013 - Bad address
+ * @throws { BusinessError } 13900014 - Device or resource busy
+ * @throws { BusinessError } 13900015 - File exists
+ * @throws { BusinessError } 13900017 - No such device
+ * @throws { BusinessError } 13900018 - Not a directory
  * @throws { BusinessError } 13900019 - Is a directory
  * @throws { BusinessError } 13900020 - Invalid argument
+ * @throws { BusinessError } 13900022 - Too many open files
+ * @throws { BusinessError } 13900023 - Text file busy
  * @throws { BusinessError } 13900024 - File too large
  * @throws { BusinessError } 13900025 - No space left on device
+ * @throws { BusinessError } 13900027 - Read-only file system
+ * @throws { BusinessError } 13900029 - Resource deadlock would occur
+ * @throws { BusinessError } 13900030 - File name too long
+ * @throws { BusinessError } 13900033 - Too many symbolic links encountered
  * @throws { BusinessError } 13900034 - Operation would block
+ * @throws { BusinessError } 13900038 - Value too large for defined data type
  * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
+ * @since 20
  */
+function fdopenStreamSync(fd: number, mode: string): Stream;
+
 /**
- * Read text with sync interface.
+ * Synchronize file.
  *
- * @param { string } filePath - file path.
- * @param { ReadTextOptions } [options] - options.
- * @returns { string } Returns the contents of the read file.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900004 - Interrupted system call
+ * @param { number } fd - fd.
+ * @returns { Promise<void> } The promise returned by the function.
  * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900019 - Is a directory
+ * @throws { BusinessError } 13900008 - Bad file descriptor
  * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900024 - File too large
  * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900034 - Operation would block
+ * @throws { BusinessError } 13900027 - Read-only file system
  * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @crossplatform
- * @atomicservice
- * @since 11
+ * @since 20
  */
+function fsync(fd: number): Promise<void>;
+
 /**
- * Read text with sync interface.
+ * Synchronize file.
  *
- * @param { string } filePath - file path.
- * @param { ReadTextOptions } [options] - options.
- * @returns { string } Returns the contents of the read file.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900004 - Interrupted system call
+ * @param { number } fd - fd.
+ * @param { AsyncCallback<void> } callback - Return the callback function.
  * @throws { BusinessError } 13900005 - I/O error
  * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900019 - Is a directory
  * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900024 - File too large
  * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900034 - Operation would block
+ * @throws { BusinessError } 13900027 - Read-only file system
  * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
- * @throws { BusinessError } 13900044 - Network is unreachable
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @crossplatform
- * @atomicservice
- * @since 12
+ * @since 20
  */
-declare function readTextSync(
-  filePath: string,
-  options?: ReadTextOptions
-): string;
+function fsync(fd: number, callback: AsyncCallback<void>): void;
 
 /**
- * Rename file.
+ * Synchronize file with sync interface.
  *
- * @param { string } oldPath - oldPath.
- * @param { string } newPath - newPath.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
+ * @param { number } fd - fd.
+ * @throws { BusinessError } 13900005 - I/O error
  * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900016 - Cross-device link
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
  * @throws { BusinessError } 13900020 - Invalid argument
  * @throws { BusinessError } 13900025 - No space left on device
  * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900032 - Directory not empty
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
  * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
+ * @crossplatform
+ * @since 20
  */
+function fsyncSync(fd: number): void;
+
 /**
- * Rename file.
+ * List file.
  *
- * @param { string } oldPath - oldPath.
- * @param { string } newPath - newPath.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 13900001 - Operation not permitted
+ * @param { string } path - path.
+ * @param { ListFileOptions } [options] - options.
+ * @returns { Promise<string[]> } Returns an Array containing the name of files or directories that meet the filter criteria.
+ *      If present, Include the subdirectory structure.
  * @throws { BusinessError } 13900002 - No such file or directory
  * @throws { BusinessError } 13900008 - Bad file descriptor
  * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900016 - Cross-device link
  * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900032 - Directory not empty
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @crossplatform
- * @since 10
+ * @atomicservice
+ * @since 20
  */
+function listFile(
+  path: string,
+  options?: ListFileOptions
+): Promise<string[]>;
+
 /**
- * Rename file.
+ * List file.
  *
- * @param { string } oldPath - oldPath.
- * @param { string } newPath - newPath.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 13900001 - Operation not permitted
+ * @param { string } path - path.
+ * @param { AsyncCallback<string[]> } callback - The callback is used to return an Array containing the name of files or directories 
+ *      that meet the filter criteria in promise mode. If present, Include the subdirectory structure.
  * @throws { BusinessError } 13900002 - No such file or directory
  * @throws { BusinessError } 13900008 - Bad file descriptor
  * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900016 - Cross-device link
  * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900032 - Directory not empty
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @crossplatform
  * @atomicservice
- * @since 11
+ * @since 20
  */
-declare function rename(oldPath: string, newPath: string): Promise<void>;
+function listFile(path: string, callback: AsyncCallback<string[]>): void;
 
 /**
- * Rename file.
+ * List file.
  *
- * @param { string } oldPath - oldPath.
- * @param { string } newPath - newPath.
- * @param { AsyncCallback<void> } callback - Returns the callback function.
- * @throws { BusinessError } 13900001 - Operation not permitted
+ * @param { string } path - path.
+ * @param { ListFileOptions } [options] - options.
+ * @param { AsyncCallback<string[]> } callback - The callback is used to return an Array containing the name of files or directories 
+ *      that meet the filter criteria in promise mode. If present, Include the subdirectory structure.
  * @throws { BusinessError } 13900002 - No such file or directory
  * @throws { BusinessError } 13900008 - Bad file descriptor
  * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900016 - Cross-device link
  * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900032 - Directory not empty
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
+ * @crossplatform
+ * @atomicservice
+ * @since 20
  */
+function listFile(
+  path: string,
+  options: ListFileOptions,
+  callback: AsyncCallback<string[]>
+): void;
+
 /**
- * Rename file.
+ * List file with sync interface.
  *
- * @param { string } oldPath - oldPath.
- * @param { string } newPath - newPath.
- * @param { AsyncCallback<void> } callback - Returns the callback function.
- * @throws { BusinessError } 13900001 - Operation not permitted
+ * @param { string } path - path.
+ * @param { ListFileOptions } [options] - options.
+ * @returns { string[] } Returns an Array containing the name of files or directories that meet the filter criteria.
  * @throws { BusinessError } 13900002 - No such file or directory
  * @throws { BusinessError } 13900008 - Bad file descriptor
  * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900016 - Cross-device link
  * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900032 - Directory not empty
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @crossplatform
- * @since 10
+ * @atomicservice
+ * @since 20
  */
+function listFileSync(
+  path: string,
+  options?: ListFileOptions
+): string[];
+
 /**
- * Rename file.
+ *  Reposition file offset.
  *
- * @param { string } oldPath - oldPath.
- * @param { string } newPath - newPath.
- * @param { AsyncCallback<void> } callback - Returns the callback function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
+ * @param { number } fd - file descriptor.
+ * @param { number } offset - file offset.
+ * @param { WhenceType } [whence = WhenceType.SEEK_SET] - directive whence.
+ * @returns { number } Returns the file offset relative to starting position of file.
  * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900011 - Out of memory
- * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900016 - Cross-device link
- * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
  * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900032 - Directory not empty
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
+ * @throws { BusinessError } 13900026 - Illegal seek
+ * @throws { BusinessError } 13900038 - Value too large for defined data type
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @crossplatform
- * @atomicservice
- * @since 11
+ * @since 20
  */
-declare function rename(oldPath: string, newPath: string, callback: AsyncCallback<void>): void;
+function lseek(fd: number, offset: number, whence?: WhenceType): number;
 
 /**
- * Rename file with sync interface.
+ * Stat link file.
  *
- * @param { string } oldPath - oldPath.
- * @param { string } newPath - newPath.
- * @throws { BusinessError } 13900001 - Operation not permitted
+ * @param { string } path - path.
+ * @returns { Promise<Stat> } Returns the Stat object in promise mode.
  * @throws { BusinessError } 13900002 - No such file or directory
  * @throws { BusinessError } 13900008 - Bad file descriptor
  * @throws { BusinessError } 13900011 - Out of memory
  * @throws { BusinessError } 13900012 - Permission denied
  * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900016 - Cross-device link
  * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900032 - Directory not empty
+ * @throws { BusinessError } 13900030 - File name too long
  * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
+ * @throws { BusinessError } 13900038 - Value too large for defined data type
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
+ * @since 20
  */
+function lstat(path: string): Promise<Stat>;
+
 /**
- * Rename file with sync interface.
+ * Stat link file.
  *
- * @param { string } oldPath - oldPath.
- * @param { string } newPath - newPath.
- * @throws { BusinessError } 13900001 - Operation not permitted
+ * @param { string } path - path.
+ * @param { AsyncCallback<Stat> } callback - The callback is used to return the Stat object.
  * @throws { BusinessError } 13900002 - No such file or directory
  * @throws { BusinessError } 13900008 - Bad file descriptor
  * @throws { BusinessError } 13900011 - Out of memory
  * @throws { BusinessError } 13900012 - Permission denied
  * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900016 - Cross-device link
  * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900032 - Directory not empty
+ * @throws { BusinessError } 13900030 - File name too long
  * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
+ * @throws { BusinessError } 13900038 - Value too large for defined data type
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
+ * @since 20
  */
+function lstat(path: string, callback: AsyncCallback<Stat>): void;
+
 /**
- * Rename file with sync interface.
+ * Stat link file with sync interface.
  *
- * @param { string } oldPath - oldPath.
- * @param { string } newPath - newPath.
- * @throws { BusinessError } 13900001 - Operation not permitted
+ * @param { string } path - path.
+ * @returns { Stat } Returns the Stat object.
  * @throws { BusinessError } 13900002 - No such file or directory
  * @throws { BusinessError } 13900008 - Bad file descriptor
  * @throws { BusinessError } 13900011 - Out of memory
  * @throws { BusinessError } 13900012 - Permission denied
  * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
- * @throws { BusinessError } 13900015 - File exists
- * @throws { BusinessError } 13900016 - Cross-device link
  * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900028 - Too many links
- * @throws { BusinessError } 13900032 - Directory not empty
+ * @throws { BusinessError } 13900030 - File name too long
  * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900041 - Quota exceeded
+ * @throws { BusinessError } 13900038 - Value too large for defined data type
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
+ * @since 20
  */
-declare function renameSync(oldPath: string, newPath: string): void;
+function lstatSync(path: string): Stat;
 
 /**
- * Delete dir.
+ * Make dir.
  *
  * @param { string } path - path.
  * @returns { Promise<void> } The promise returned by the function.
  * @throws { BusinessError } 13900001 - Operation not permitted
  * @throws { BusinessError } 13900002 - No such file or directory
+ * @throws { BusinessError } 13900008 - Bad file descriptor
  * @throws { BusinessError } 13900011 - Out of memory
  * @throws { BusinessError } 13900012 - Permission denied
  * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
+ * @throws { BusinessError } 13900015 - File exists
  * @throws { BusinessError } 13900018 - Not a directory
  * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900027 - Read-only file system1
+ * @throws { BusinessError } 13900025 - No space left on device
+ * @throws { BusinessError } 13900028 - Too many links
  * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900032 - Directory not empty
+ * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+ * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
+ * @crossplatform
+ * @atomicservice
+ * @since 20
  */
+function mkdir(path: string): Promise<void>;
+
 /**
- * Delete dir.
+ * Make dir.
  *
  * @param { string } path - path.
+ * @param { boolean } recursion - whether to recursively make directory.
  * @returns { Promise<void> } The promise returned by the function.
  * @throws { BusinessError } 13900001 - Operation not permitted
  * @throws { BusinessError } 13900002 - No such file or directory
+ * @throws { BusinessError } 13900008 - Bad file descriptor
  * @throws { BusinessError } 13900011 - Out of memory
  * @throws { BusinessError } 13900012 - Permission denied
  * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
+ * @throws { BusinessError } 13900015 - File exists
  * @throws { BusinessError } 13900018 - Not a directory
  * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900027 - Read-only file system1
+ * @throws { BusinessError } 13900025 - No space left on device
+ * @throws { BusinessError } 13900028 - Too many links
  * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900032 - Directory not empty
+ * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+ * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
+ * @atomicservice
+ * @since 20
  */
+function mkdir(path: string, recursion: boolean): Promise<void>;
+
 /**
- * Delete dir.
+ * Make dir.
  *
  * @param { string } path - path.
- * @returns { Promise<void> } The promise returned by the function.
+ * @param { AsyncCallback<void> } callback - Return the callback function.
  * @throws { BusinessError } 13900001 - Operation not permitted
  * @throws { BusinessError } 13900002 - No such file or directory
+ * @throws { BusinessError } 13900008 - Bad file descriptor
  * @throws { BusinessError } 13900011 - Out of memory
  * @throws { BusinessError } 13900012 - Permission denied
  * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
+ * @throws { BusinessError } 13900015 - File exists
  * @throws { BusinessError } 13900018 - Not a directory
  * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900027 - Read-only file system1
+ * @throws { BusinessError } 13900025 - No space left on device
+ * @throws { BusinessError } 13900028 - Too many links
  * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900032 - Directory not empty
+ * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+ * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @crossplatform
  * @atomicservice
- * @since 11
+ * @since 20
  */
-declare function rmdir(path: string): Promise<void>;
+function mkdir(path: string, callback: AsyncCallback<void>): void;
 
 /**
- * Delete dir.
+ * Make dir.
  *
  * @param { string } path - path.
+ * @param { boolean } recursion - whether to recursively make directory.
  * @param { AsyncCallback<void> } callback - Return the callback function.
  * @throws { BusinessError } 13900001 - Operation not permitted
  * @throws { BusinessError } 13900002 - No such file or directory
+ * @throws { BusinessError } 13900008 - Bad file descriptor
  * @throws { BusinessError } 13900011 - Out of memory
  * @throws { BusinessError } 13900012 - Permission denied
  * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
+ * @throws { BusinessError } 13900015 - File exists
  * @throws { BusinessError } 13900018 - Not a directory
  * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900027 - Read-only file system1
+ * @throws { BusinessError } 13900025 - No space left on device
+ * @throws { BusinessError } 13900028 - Too many links
  * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900032 - Directory not empty
+ * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+ * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
+ * @atomicservice
+ * @since 20
  */
+function mkdir(path: string, recursion: boolean, callback: AsyncCallback<void>): void;
+
 /**
- * Delete dir.
+ * Make dir with sync interface.
  *
  * @param { string } path - path.
- * @param { AsyncCallback<void> } callback - Return the callback function.
  * @throws { BusinessError } 13900001 - Operation not permitted
  * @throws { BusinessError } 13900002 - No such file or directory
+ * @throws { BusinessError } 13900008 - Bad file descriptor
  * @throws { BusinessError } 13900011 - Out of memory
  * @throws { BusinessError } 13900012 - Permission denied
  * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
+ * @throws { BusinessError } 13900015 - File exists
  * @throws { BusinessError } 13900018 - Not a directory
  * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900027 - Read-only file system1
+ * @throws { BusinessError } 13900025 - No space left on device
+ * @throws { BusinessError } 13900028 - Too many links
  * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900032 - Directory not empty
+ * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+ * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @crossplatform
- * @since 10
+ * @atomicservice
+ * @since 20
  */
+function mkdirSync(path: string): void;
+
 /**
- * Delete dir.
+ * Make dir with sync interface.
  *
  * @param { string } path - path.
- * @param { AsyncCallback<void> } callback - Return the callback function.
+ * @param { boolean } recursion - whether to recursively make directory.
  * @throws { BusinessError } 13900001 - Operation not permitted
  * @throws { BusinessError } 13900002 - No such file or directory
+ * @throws { BusinessError } 13900008 - Bad file descriptor
  * @throws { BusinessError } 13900011 - Out of memory
  * @throws { BusinessError } 13900012 - Permission denied
  * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
+ * @throws { BusinessError } 13900015 - File exists
  * @throws { BusinessError } 13900018 - Not a directory
  * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900027 - Read-only file system1
+ * @throws { BusinessError } 13900025 - No space left on device
+ * @throws { BusinessError } 13900028 - Too many links
  * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900032 - Directory not empty
+ * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+ * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
  * @atomicservice
- * @since 11
+ * @since 20
  */
-declare function rmdir(path: string, callback: AsyncCallback<void>): void;
+function mkdirSync(path: string, recursion: boolean): void;
 
 /**
- * Delete dir with sync interface.
+ * Make temp dir.
  *
- * @param { string } path - path.
+ * @param { string } prefix - dir prefix.
+ * @returns { Promise<string> } Returns the path to the new directory in promise mode.
  * @throws { BusinessError } 13900001 - Operation not permitted
  * @throws { BusinessError } 13900002 - No such file or directory
+ * @throws { BusinessError } 13900008 - Bad file descriptor
  * @throws { BusinessError } 13900011 - Out of memory
  * @throws { BusinessError } 13900012 - Permission denied
  * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
+ * @throws { BusinessError } 13900015 - File exists
  * @throws { BusinessError } 13900018 - Not a directory
  * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900027 - Read-only file system1
+ * @throws { BusinessError } 13900025 - No space left on device
+ * @throws { BusinessError } 13900028 - Too many links
  * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900032 - Directory not empty
+ * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+ * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
+ * @crossplatform
+ * @since 20
  */
+function mkdtemp(prefix: string): Promise<string>;
+
 /**
- * Delete dir with sync interface.
+ * Make temp dir.
  *
- * @param { string } path - path.
+ * @param { string } prefix - dir prefix.
+ * @param { AsyncCallback<string> } callback - The callback is used to return the path to the new directory.
  * @throws { BusinessError } 13900001 - Operation not permitted
  * @throws { BusinessError } 13900002 - No such file or directory
+ * @throws { BusinessError } 13900008 - Bad file descriptor
  * @throws { BusinessError } 13900011 - Out of memory
  * @throws { BusinessError } 13900012 - Permission denied
  * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
+ * @throws { BusinessError } 13900015 - File exists
  * @throws { BusinessError } 13900018 - Not a directory
  * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900027 - Read-only file system1
+ * @throws { BusinessError } 13900025 - No space left on device
+ * @throws { BusinessError } 13900028 - Too many links
  * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900032 - Directory not empty
+ * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+ * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @crossplatform
- * @since 10
+ * @since 20
  */
+function mkdtemp(prefix: string, callback: AsyncCallback<string>): void;
+
 /**
- * Delete dir with sync interface.
+ * Make temp dir with sync interface.
  *
- * @param { string } path - path.
+ * @param { string } prefix - dir prefix.
+ * @returns { string } Returns the path to the new directory.
  * @throws { BusinessError } 13900001 - Operation not permitted
  * @throws { BusinessError } 13900002 - No such file or directory
+ * @throws { BusinessError } 13900008 - Bad file descriptor
  * @throws { BusinessError } 13900011 - Out of memory
  * @throws { BusinessError } 13900012 - Permission denied
  * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
+ * @throws { BusinessError } 13900015 - File exists
  * @throws { BusinessError } 13900018 - Not a directory
  * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900027 - Read-only file system1
+ * @throws { BusinessError } 13900025 - No space left on device
+ * @throws { BusinessError } 13900028 - Too many links
  * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900032 - Directory not empty
+ * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+ * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @crossplatform
- * @atomicservice
- * @since 11
+ * @since 20
  */
-declare function rmdirSync(path: string): void;
+function mkdtempSync(prefix: string): string;
 
 /**
- * Get file information.
+ * Move directory.
  *
- * @param { string | number } file - path or file descriptor.
- * @returns { Promise<Stat> } Returns the Stat object in promise mode.
+ * @param { string } src - source file path.
+ * @param { string } dest - destination file path.
+ * @param { number } [mode = 0] - move mode when duplicate file name exists.
+ * @returns { Promise<void> } The promise returned by the function.
+ * @throws { BusinessError } 13900001 - Operation not permitted
  * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
  * @throws { BusinessError } 13900008 - Bad file descriptor
  * @throws { BusinessError } 13900011 - Out of memory
  * @throws { BusinessError } 13900012 - Permission denied
  * @throws { BusinessError } 13900013 - Bad address
+ * @throws { BusinessError } 13900014 - Device or resource busy
+ * @throws { BusinessError } 13900015 - File exists
+ * @throws { BusinessError } 13900016 - Cross-device link
  * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
+ * @throws { BusinessError } 13900019 - Is a directory
+ * @throws { BusinessError } 13900020 - Invalid argument
+ * @throws { BusinessError } 13900025 - No space left on device
+ * @throws { BusinessError } 13900027 - Read-only file system
+ * @throws { BusinessError } 13900028 - Too many links
+ * @throws { BusinessError } 13900032 - Directory not empty
  * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900038 - Value too large for defined data type
+ * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
+ * @since 20
  */
+function moveDir(src: string, dest: string, mode?: number): Promise<void>;
+
 /**
- * Get file information.
+ * Move directory.
  *
- * @param { string | number } file - path or file descriptor.
- * @returns { Promise<Stat> } Returns the Stat object in promise mode.
+ * @param { string } src - source file path.
+ * @param { string } dest - destination file path.
+ * @param { AsyncCallback<void> } callback - Return the callback function.
+ * @throws { BusinessError } 13900001 - Operation not permitted
  * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
  * @throws { BusinessError } 13900008 - Bad file descriptor
  * @throws { BusinessError } 13900011 - Out of memory
  * @throws { BusinessError } 13900012 - Permission denied
  * @throws { BusinessError } 13900013 - Bad address
+ * @throws { BusinessError } 13900014 - Device or resource busy
+ * @throws { BusinessError } 13900016 - Cross-device link
  * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
+ * @throws { BusinessError } 13900019 - Is a directory
+ * @throws { BusinessError } 13900020 - Invalid argument
+ * @throws { BusinessError } 13900025 - No space left on device
+ * @throws { BusinessError } 13900027 - Read-only file system
+ * @throws { BusinessError } 13900028 - Too many links
+ * @throws { BusinessError } 13900032 - Directory not empty
  * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900038 - Value too large for defined data type
+ * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
+ * @since 20
  */
+function moveDir(src: string, dest: string, callback: AsyncCallback<void>): void;
+
 /**
- * Get file information.
+ * Move directory.
  *
- * @param { string | number } file - path or file descriptor.
- * @returns { Promise<Stat> } Returns the Stat object in promise mode.
+ * @param { string } src - source file path.
+ * @param { string } dest - destination file path.
+ * @param { AsyncCallback<void, Array<ConflictFiles>> } callback - Return the callback function.
+ * @throws { BusinessError } 13900015 - File exists
+ * @syscap SystemCapability.FileManagement.File.FileIO
+ * @since 20
+ */
+function moveDir(src: string, dest: string, callback: AsyncCallback<void, Array<ConflictFiles>>): void;
+
+/**
+ * Move directory.
+ *
+ * @param { string } src - source file path.
+ * @param { string } dest - destination file path.
+ * @param { number } mode - move mode when duplicate file name exists.
+ * @param { AsyncCallback<void> } callback - Return the callback function.
+ * @throws { BusinessError } 13900001 - Operation not permitted
  * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
  * @throws { BusinessError } 13900008 - Bad file descriptor
  * @throws { BusinessError } 13900011 - Out of memory
  * @throws { BusinessError } 13900012 - Permission denied
  * @throws { BusinessError } 13900013 - Bad address
+ * @throws { BusinessError } 13900014 - Device or resource busy
+ * @throws { BusinessError } 13900016 - Cross-device link
  * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
+ * @throws { BusinessError } 13900019 - Is a directory
+ * @throws { BusinessError } 13900020 - Invalid argument
+ * @throws { BusinessError } 13900025 - No space left on device
+ * @throws { BusinessError } 13900027 - Read-only file system
+ * @throws { BusinessError } 13900028 - Too many links
+ * @throws { BusinessError } 13900032 - Directory not empty
  * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900038 - Value too large for defined data type
+ * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
+ * @since 20
  */
-declare function stat(file: string | number): Promise<Stat>;
+function moveDir(src: string, dest: string, mode: number, callback: AsyncCallback<void>): void;
 
 /**
- * Get file information.
+ * Move directory.
  *
- * @param { string | number } file - path or file descriptor.
- * @param { AsyncCallback<Stat> } callback - The callback is used to return the Stat object.
+ * @param { string } src - source file path.
+ * @param { string } dest - destination file path.
+ * @param { number } mode - move mode when duplicate file name exists.
+ * @param { AsyncCallback<void, Array<ConflictFiles>> } callback - Return the callback function.
+ * @throws { BusinessError } 13900015 - File exists
+ * @syscap SystemCapability.FileManagement.File.FileIO
+ * @since 20
+ */
+function moveDir(src: string, dest: string, mode: number, callback: AsyncCallback<void, Array<ConflictFiles>>): void;
+
+/**
+ * Move directory with sync interface.
+ *
+ * @param { string } src - source file path.
+ * @param { string } dest - destination file path.
+ * @param { number } [mode = 0] - move mode when duplicate file name exists.
+ * @throws { BusinessError } 13900001 - Operation not permitted
  * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
  * @throws { BusinessError } 13900008 - Bad file descriptor
  * @throws { BusinessError } 13900011 - Out of memory
  * @throws { BusinessError } 13900012 - Permission denied
  * @throws { BusinessError } 13900013 - Bad address
+ * @throws { BusinessError } 13900014 - Device or resource busy
+ * @throws { BusinessError } 13900015 - File exists
+ * @throws { BusinessError } 13900016 - Cross-device link
  * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
+ * @throws { BusinessError } 13900019 - Is a directory
+ * @throws { BusinessError } 13900020 - Invalid argument
+ * @throws { BusinessError } 13900025 - No space left on device
+ * @throws { BusinessError } 13900027 - Read-only file system
+ * @throws { BusinessError } 13900028 - Too many links
+ * @throws { BusinessError } 13900032 - Directory not empty
  * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900038 - Value too large for defined data type
+ * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
+ * @since 20
  */
+function moveDirSync(src: string, dest: string, mode?: number): void;
+
 /**
- * Get file information.
+ * Move file.
  *
- * @param { string | number } file - path or file descriptor.
- * @param { AsyncCallback<Stat> } callback - The callback is used to return the Stat object.
+ * @param { string } src - source file path.
+ * @param { string } dest - destination file path.
+ * @param { number } [mode = 0] - move mode when duplicate file name exists.
+ * @returns { Promise<void> } The promise returned by the function.
+ * @throws { BusinessError } 13900001 - Operation not permitted
  * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
  * @throws { BusinessError } 13900008 - Bad file descriptor
  * @throws { BusinessError } 13900011 - Out of memory
  * @throws { BusinessError } 13900012 - Permission denied
  * @throws { BusinessError } 13900013 - Bad address
+ * @throws { BusinessError } 13900014 - Device or resource busy
+ * @throws { BusinessError } 13900015 - File exists
+ * @throws { BusinessError } 13900016 - Cross-device link
  * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
+ * @throws { BusinessError } 13900019 - Is a directory
+ * @throws { BusinessError } 13900020 - Invalid argument
+ * @throws { BusinessError } 13900025 - No space left on device
+ * @throws { BusinessError } 13900027 - Read-only file system
+ * @throws { BusinessError } 13900028 - Too many links
+ * @throws { BusinessError } 13900032 - Directory not empty
  * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900038 - Value too large for defined data type
+ * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @crossplatform
- * @since 10
+ * @since 20
  */
+function moveFile(src: string, dest: string, mode?: number): Promise<void>;
+
 /**
- * Get file information.
+ * Move file.
  *
- * @param { string | number } file - path or file descriptor.
- * @param { AsyncCallback<Stat> } callback - The callback is used to return the Stat object.
+ * @param { string } src - source file path.
+ * @param { string } dest - destination file path.
+ * @param { AsyncCallback<void> } callback - Return the callback function.
+ * @throws { BusinessError } 13900001 - Operation not permitted
  * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
  * @throws { BusinessError } 13900008 - Bad file descriptor
  * @throws { BusinessError } 13900011 - Out of memory
  * @throws { BusinessError } 13900012 - Permission denied
  * @throws { BusinessError } 13900013 - Bad address
+ * @throws { BusinessError } 13900014 - Device or resource busy
+ * @throws { BusinessError } 13900015 - File exists
+ * @throws { BusinessError } 13900016 - Cross-device link
  * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
+ * @throws { BusinessError } 13900019 - Is a directory
+ * @throws { BusinessError } 13900020 - Invalid argument
+ * @throws { BusinessError } 13900025 - No space left on device
+ * @throws { BusinessError } 13900027 - Read-only file system
+ * @throws { BusinessError } 13900028 - Too many links
+ * @throws { BusinessError } 13900032 - Directory not empty
  * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900038 - Value too large for defined data type
+ * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @crossplatform
- * @atomicservice
- * @since 11
+ * @since 20
  */
-declare function stat(file: string | number, callback: AsyncCallback<Stat>): void;
+function moveFile(src: string, dest: string, callback: AsyncCallback<void>): void;
 
 /**
- * Get file information with sync interface.
+ * Move file.
  *
- * @param { string | number } file - path or file descriptor.
- * @returns { Stat } Returns the Stat object.
+ * @param { string } src - source file path.
+ * @param { string } dest - destination file path.
+ * @param { number } [mode = 0] - move mode when duplicate file name exists.
+ * @param { AsyncCallback<void> } callback - Return the callback function.
+ * @throws { BusinessError } 13900001 - Operation not permitted
  * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
  * @throws { BusinessError } 13900008 - Bad file descriptor
  * @throws { BusinessError } 13900011 - Out of memory
  * @throws { BusinessError } 13900012 - Permission denied
  * @throws { BusinessError } 13900013 - Bad address
+ * @throws { BusinessError } 13900014 - Device or resource busy
+ * @throws { BusinessError } 13900015 - File exists
+ * @throws { BusinessError } 13900016 - Cross-device link
  * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
+ * @throws { BusinessError } 13900019 - Is a directory
+ * @throws { BusinessError } 13900020 - Invalid argument
+ * @throws { BusinessError } 13900025 - No space left on device
+ * @throws { BusinessError } 13900027 - Read-only file system
+ * @throws { BusinessError } 13900028 - Too many links
+ * @throws { BusinessError } 13900032 - Directory not empty
  * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900038 - Value too large for defined data type
+ * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
+ * @crossplatform
+ * @since 20
  */
+function moveFile(src: string, dest: string, mode: number, callback: AsyncCallback<void>): void;
+
 /**
- * Get file information with sync interface.
+ * Move file with sync interface.
  *
- * @param { string | number } file - path or file descriptor.
- * @returns { Stat } Returns the Stat object.
+ * @param { string } src - source file path.
+ * @param { string } dest - destination file path.
+ * @param { number } [mode = 0] - move mode when duplicate file name exists.
+ * @throws { BusinessError } 13900001 - Operation not permitted
  * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
  * @throws { BusinessError } 13900008 - Bad file descriptor
  * @throws { BusinessError } 13900011 - Out of memory
  * @throws { BusinessError } 13900012 - Permission denied
  * @throws { BusinessError } 13900013 - Bad address
+ * @throws { BusinessError } 13900014 - Device or resource busy
+ * @throws { BusinessError } 13900015 - File exists
+ * @throws { BusinessError } 13900016 - Cross-device link
  * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
+ * @throws { BusinessError } 13900019 - Is a directory
+ * @throws { BusinessError } 13900020 - Invalid argument
+ * @throws { BusinessError } 13900025 - No space left on device
+ * @throws { BusinessError } 13900027 - Read-only file system
+ * @throws { BusinessError } 13900028 - Too many links
+ * @throws { BusinessError } 13900032 - Directory not empty
  * @throws { BusinessError } 13900033 - Too many symbolic links encountered
- * @throws { BusinessError } 13900038 - Value too large for defined data type
+ * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @crossplatform
- * @since 10
+ * @since 20
  */
+function moveFileSync(src: string, dest: string, mode?: number): void;
+
 /**
- * Get file information with sync interface.
+ * Open file.
  *
- * @param { string | number } file - path or file descriptor.
- * @returns { Stat } Returns the Stat object.
+ * @param { string } path - path.
+ * @param { number } [mode = OpenMode.READ_ONLY] - mode.
+ * @returns { Promise<File> } Returns the File object in Promise mode to record the file descriptor.
+ * @throws { BusinessError } 13900001 - Operation not permitted
  * @throws { BusinessError } 13900002 - No such file or directory
  * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
+ * @throws { BusinessError } 13900006 - No such device or address
  * @throws { BusinessError } 13900008 - Bad file descriptor
  * @throws { BusinessError } 13900011 - Out of memory
  * @throws { BusinessError } 13900012 - Permission denied
  * @throws { BusinessError } 13900013 - Bad address
+ * @throws { BusinessError } 13900014 - Device or resource busy
+ * @throws { BusinessError } 13900015 - File exists
+ * @throws { BusinessError } 13900017 - No such device
  * @throws { BusinessError } 13900018 - Not a directory
+ * @throws { BusinessError } 13900019 - Is a directory
+ * @throws { BusinessError } 13900020 - Invalid argument
+ * @throws { BusinessError } 13900022 - Too many open files
+ * @throws { BusinessError } 13900023 - Text file busy
+ * @throws { BusinessError } 13900024 - File too large
+ * @throws { BusinessError } 13900025 - No space left on device
+ * @throws { BusinessError } 13900027 - Read-only file system
+ * @throws { BusinessError } 13900029 - Resource deadlock would occur
  * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900031 - Function not implemented
  * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+ * @throws { BusinessError } 13900034 - Operation would block
  * @throws { BusinessError } 13900038 - Value too large for defined data type
+ * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
+ * @throws { BusinessError } 13900044 - Network is unreachable
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @crossplatform
  * @atomicservice
- * @since 11
+ * @since 20
  */
-declare function statSync(file: string | number): Stat;
+function open(path: string, mode?: number): Promise<File>;
 
 /**
- * Link file.
+ * Open file.
  *
- * @param { string } target - target.
- * @param { string } srcPath - srcPath.
- * @returns { Promise<void> } The promise returned by the function.
+ * @param { string } path - path.
+ * @param { AsyncCallback<File> } callback - The callback is used to return the File object to record the file descriptor.
  * @throws { BusinessError } 13900001 - Operation not permitted
  * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900005 - I/O error
+ * @throws { BusinessError } 13900004 - Interrupted system call
+ * @throws { BusinessError } 13900006 - No such device or address
  * @throws { BusinessError } 13900008 - Bad file descriptor
  * @throws { BusinessError } 13900011 - Out of memory
  * @throws { BusinessError } 13900012 - Permission denied
  * @throws { BusinessError } 13900013 - Bad address
+ * @throws { BusinessError } 13900014 - Device or resource busy
  * @throws { BusinessError } 13900015 - File exists
+ * @throws { BusinessError } 13900017 - No such device
  * @throws { BusinessError } 13900018 - Not a directory
+ * @throws { BusinessError } 13900019 - Is a directory
+ * @throws { BusinessError } 13900020 - Invalid argument
+ * @throws { BusinessError } 13900022 - Too many open files
+ * @throws { BusinessError } 13900023 - Text file busy
+ * @throws { BusinessError } 13900024 - File too large
  * @throws { BusinessError } 13900025 - No space left on device
  * @throws { BusinessError } 13900027 - Read-only file system
+ * @throws { BusinessError } 13900029 - Resource deadlock would occur
  * @throws { BusinessError } 13900030 - File name too long
+ * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+ * @throws { BusinessError } 13900034 - Operation would block
+ * @throws { BusinessError } 13900038 - Value too large for defined data type
  * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
+ * @crossplatform
+ * @atomicservice
+ * @since 20
  */
-declare function symlink(target: string, srcPath: string): Promise<void>;
+function open(path: string, callback: AsyncCallback<File>): void;
 
 /**
- * Link file.
+ * Open file.
  *
- * @param { string } target - target.
- * @param { string } srcPath - srcPath.
- * @param { AsyncCallback<void> } callback - Return the callback function.
+ * @param { string } path - path.
+ * @param { number } [mode = OpenMode.READ_ONLY] - mode.
+ * @param { AsyncCallback<File> } callback - The callback is used to return the File object to record the file descriptor.
  * @throws { BusinessError } 13900001 - Operation not permitted
  * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900005 - I/O error
+ * @throws { BusinessError } 13900004 - Interrupted system call
+ * @throws { BusinessError } 13900006 - No such device or address
  * @throws { BusinessError } 13900008 - Bad file descriptor
  * @throws { BusinessError } 13900011 - Out of memory
  * @throws { BusinessError } 13900012 - Permission denied
  * @throws { BusinessError } 13900013 - Bad address
+ * @throws { BusinessError } 13900014 - Device or resource busy
  * @throws { BusinessError } 13900015 - File exists
+ * @throws { BusinessError } 13900017 - No such device
  * @throws { BusinessError } 13900018 - Not a directory
+ * @throws { BusinessError } 13900019 - Is a directory
+ * @throws { BusinessError } 13900020 - Invalid argument
+ * @throws { BusinessError } 13900022 - Too many open files
+ * @throws { BusinessError } 13900023 - Text file busy
+ * @throws { BusinessError } 13900024 - File too large
  * @throws { BusinessError } 13900025 - No space left on device
  * @throws { BusinessError } 13900027 - Read-only file system
+ * @throws { BusinessError } 13900029 - Resource deadlock would occur
  * @throws { BusinessError } 13900030 - File name too long
+ * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+ * @throws { BusinessError } 13900034 - Operation would block
+ * @throws { BusinessError } 13900038 - Value too large for defined data type
  * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
+ * @crossplatform
+ * @atomicservice
+ * @since 20
  */
-declare function symlink(target: string, srcPath: string, callback: AsyncCallback<void>): void;
+function open(path: string, mode: number, callback: AsyncCallback<File>): void;
 
 /**
- * Link file with sync interface.
+ * Open file with sync interface.
  *
- * @param { string } target - target.
- * @param { string } srcPath - srcPath.
+ * @param { string } path - path.
+ * @param { number } [mode = OpenMode.READ_ONLY] - mode.
+ * @returns { File } Returns the File object to record the file descriptor.
  * @throws { BusinessError } 13900001 - Operation not permitted
  * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900005 - I/O error
+ * @throws { BusinessError } 13900004 - Interrupted system call
+ * @throws { BusinessError } 13900006 - No such device or address
  * @throws { BusinessError } 13900008 - Bad file descriptor
  * @throws { BusinessError } 13900011 - Out of memory
  * @throws { BusinessError } 13900012 - Permission denied
  * @throws { BusinessError } 13900013 - Bad address
+ * @throws { BusinessError } 13900014 - Device or resource busy
  * @throws { BusinessError } 13900015 - File exists
+ * @throws { BusinessError } 13900017 - No such device
  * @throws { BusinessError } 13900018 - Not a directory
+ * @throws { BusinessError } 13900019 - Is a directory
+ * @throws { BusinessError } 13900020 - Invalid argument
+ * @throws { BusinessError } 13900022 - Too many open files
+ * @throws { BusinessError } 13900023 - Text file busy
+ * @throws { BusinessError } 13900024 - File too large
  * @throws { BusinessError } 13900025 - No space left on device
  * @throws { BusinessError } 13900027 - Read-only file system
+ * @throws { BusinessError } 13900029 - Resource deadlock would occur
  * @throws { BusinessError } 13900030 - File name too long
+ * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+ * @throws { BusinessError } 13900034 - Operation would block
+ * @throws { BusinessError } 13900038 - Value too large for defined data type
  * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
+ * @throws { BusinessError } 13900044 - Network is unreachable
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
+ * @crossplatform
+ * @atomicservice
+ * @since 20
  */
-declare function symlinkSync(target: string, srcPath: string): void;
+function openSync(path: string, mode?: number): File;
 
 /**
- * Truncate file.
+ * Read file.
  *
- * @param { string | number } file - path or file descriptor.
- * @param { number } [len = 0] - len.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
+ * @param { number } fd - file descriptor.
+ * @param { ArrayBuffer } buffer - buffer.
+ * @param { ReadOptions } [options] - options.
+ * @returns { Promise<number> } Returns the number of file bytes read to buffer in promise mode.
  * @throws { BusinessError } 13900004 - Interrupted system call
  * @throws { BusinessError } 13900005 - I/O error
  * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900012 - Permission denied
+ * @throws { BusinessError } 13900010 - Try again
  * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
  * @throws { BusinessError } 13900019 - Is a directory
  * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+ * @throws { BusinessError } 13900034 - Operation would block
  * @throws { BusinessError } 13900042 - Unknown error
+ * @throws { BusinessError } 13900044 - Network is unreachable
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
+ * @crossplatform
+ * @atomicservice
+ * @since 20
  */
+function read(
+  fd: number,
+  buffer: ArrayBuffer,
+  options?: ReadOptions
+): Promise<number>;
+
 /**
- * Truncate file.
+ * Read file.
  *
- * @param { string | number } file - path or file descriptor.
- * @param { number } [len = 0] - len.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
+ * @param { number } fd - file descriptor.
+ * @param { ArrayBuffer } buffer - buffer.
+ * @param { AsyncCallback<number> } callback - The callback is used to return the number of file bytes read to buffer.
  * @throws { BusinessError } 13900004 - Interrupted system call
  * @throws { BusinessError } 13900005 - I/O error
  * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900012 - Permission denied
+ * @throws { BusinessError } 13900010 - Try again
  * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
  * @throws { BusinessError } 13900019 - Is a directory
  * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+ * @throws { BusinessError } 13900034 - Operation would block
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @crossplatform
- * @since 10
+ * @atomicservice
+ * @since 20
  */
+function read(fd: number, buffer: ArrayBuffer, callback: AsyncCallback<number>): void;
+
 /**
- * Truncate file.
+ * Read file.
  *
- * @param { string | number } file - path or file descriptor.
- * @param { number } [len = 0] - len.
- * @returns { Promise<void> } The promise returned by the function.
- * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
+ * @param { number } fd - file descriptor.
+ * @param { ArrayBuffer } buffer - buffer.
+ * @param { ReadOptions } [options] - options.
+ * @param { AsyncCallback<number> } callback - The callback is used to return the number of file bytes read to buffer.
+ * @throws { BusinessError } 13900004 - Interrupted system call
+ * @throws { BusinessError } 13900005 - I/O error
+ * @throws { BusinessError } 13900008 - Bad file descriptor
+ * @throws { BusinessError } 13900010 - Try again
+ * @throws { BusinessError } 13900013 - Bad address
+ * @throws { BusinessError } 13900019 - Is a directory
+ * @throws { BusinessError } 13900020 - Invalid argument
+ * @throws { BusinessError } 13900034 - Operation would block
+ * @throws { BusinessError } 13900042 - Unknown error
+ * @syscap SystemCapability.FileManagement.File.FileIO
+ * @crossplatform
+ * @atomicservice
+ * @since 20
+ */
+function read(
+  fd: number,
+  buffer: ArrayBuffer,
+  options: ReadOptions,
+  callback: AsyncCallback<number>
+): void;
+
+/**
+ * Read file with sync interface.
+ *
+ * @param { number } fd - file descriptor.
+ * @param { ArrayBuffer } buffer - buffer.
+ * @param { ReadOptions } [options] - options.
+ * @returns { number } Returns the number of file bytes read to buffer.
  * @throws { BusinessError } 13900004 - Interrupted system call
  * @throws { BusinessError } 13900005 - I/O error
  * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900012 - Permission denied
+ * @throws { BusinessError } 13900010 - Try again
  * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
  * @throws { BusinessError } 13900019 - Is a directory
  * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+ * @throws { BusinessError } 13900034 - Operation would block
  * @throws { BusinessError } 13900042 - Unknown error
+ * @throws { BusinessError } 13900044 - Network is unreachable
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @crossplatform
  * @atomicservice
- * @since 11
+ * @since 20
  */
-declare function truncate(file: string | number, len?: number): Promise<void>;
+function readSync(
+  fd: number,
+  buffer: ArrayBuffer,
+  options?: ReadOptions
+): number;
 
 /**
- * Truncate file.
+ * Read content line by line.
  *
- * @param { string | number } file - path or file descriptor.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900001 - Operation not permitted
+ * @param { string } filePath - file path.
+ * @param { Options } [options] - optional parameters
+ * @returns { Promise<ReaderIterator> } Returns the iterator object in promise mode.
  * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
  * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
+ * @throws { BusinessError } 13900015 - File exists
  * @throws { BusinessError } 13900019 - Is a directory
  * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
+ * @throws { BusinessError } 13900022 - Too many open files
+ * @throws { BusinessError } 13900025 - No space left on device
  * @throws { BusinessError } 13900027 - Read-only file system
  * @throws { BusinessError } 13900030 - File name too long
  * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+ * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
+ * @throws { BusinessError } 13900044 - Network is unreachable
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
+ * @since 20
  */
+function readLines(filePath: string, options?: Options): Promise<ReaderIterator>;
+
 /**
- * Truncate file.
+ * Read content line by line.
  *
- * @param { string | number } file - path or file descriptor.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900001 - Operation not permitted
+ * @param { string } filePath - file path.
+ * @param { AsyncCallback<ReaderIterator> } callback - The callback is used to return the iterator object.
  * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
  * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
+ * @throws { BusinessError } 13900015 - File exists
  * @throws { BusinessError } 13900019 - Is a directory
  * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
+ * @throws { BusinessError } 13900022 - Too many open files
+ * @throws { BusinessError } 13900025 - No space left on device
  * @throws { BusinessError } 13900027 - Read-only file system
  * @throws { BusinessError } 13900030 - File name too long
  * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+ * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
+ * @since 20
  */
+function readLines(filePath: string, callback: AsyncCallback<ReaderIterator>): void;
+
 /**
- * Truncate file.
+ * Read content line by line.
  *
- * @param { string | number } file - path or file descriptor.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900001 - Operation not permitted
+ * @param { string } filePath - file path.
+ * @param { Options } options - optional parameters
+ * @param { AsyncCallback<ReaderIterator> } callback - The callback is used to return the iterator object.
  * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
  * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
+ * @throws { BusinessError } 13900015 - File exists
  * @throws { BusinessError } 13900019 - Is a directory
  * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
+ * @throws { BusinessError } 13900022 - Too many open files
+ * @throws { BusinessError } 13900025 - No space left on device
  * @throws { BusinessError } 13900027 - Read-only file system
  * @throws { BusinessError } 13900030 - File name too long
  * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+ * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
+ * @since 20
  */
-declare function truncate(file: string | number, callback: AsyncCallback<void>): void;
+function readLines(filePath: string, options: Options, callback: AsyncCallback<ReaderIterator>): void;
 
 /**
- * Truncate file.
+ * Read content line by line with sync interface.
  *
- * @param { string | number } file - path or file descriptor.
- * @param { number } [len = 0] - len.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900001 - Operation not permitted
+ * @param { string } filePath - file path.
+ * @param { Options } [options] - optional parameters
+ * @returns { ReaderIterator } Returns the iterator object.
  * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
  * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
+ * @throws { BusinessError } 13900015 - File exists
  * @throws { BusinessError } 13900019 - Is a directory
  * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
+ * @throws { BusinessError } 13900022 - Too many open files
+ * @throws { BusinessError } 13900025 - No space left on device
  * @throws { BusinessError } 13900027 - Read-only file system
  * @throws { BusinessError } 13900030 - File name too long
  * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+ * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
+ * @throws { BusinessError } 13900044 - Network is unreachable
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
+ * @since 20
  */
+function readLinesSync(filePath: string, options?: Options): ReaderIterator;
+
 /**
- * Truncate file.
+ * Read text.
  *
- * @param { string | number } file - path or file descriptor.
- * @param { number } [len = 0] - len.
- * @param { AsyncCallback<void> } callback - Return the callback function.
+ * @param { string } filePath - file path.
+ * @param { ReadTextOptions } [options] - options.
+ * @returns { Promise<string> } Returns the contents of the read file in promise mode.
  * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
  * @throws { BusinessError } 13900004 - Interrupted system call
  * @throws { BusinessError } 13900005 - I/O error
  * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900012 - Permission denied
+ * @throws { BusinessError } 13900010 - Try again
  * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
  * @throws { BusinessError } 13900019 - Is a directory
  * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900023 - Text file busy
  * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+ * @throws { BusinessError } 13900025 - No space left on device
+ * @throws { BusinessError } 13900034 - Operation would block
+ * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
+ * @throws { BusinessError } 13900044 - Network is unreachable
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @crossplatform
- * @since 10
+ * @atomicservice
+ * @since 20
  */
+function readText(
+  filePath: string,
+  options?: ReadTextOptions
+): Promise<string>;
+
 /**
- * Truncate file.
+ * Read text.
  *
- * @param { string | number } file - path or file descriptor.
- * @param { number } [len = 0] - len.
- * @param { AsyncCallback<void> } callback - Return the callback function.
+ * @param { string } filePath - file path.
+ * @param { AsyncCallback<string> } callback - The callback is used to return the contents of the read file.
  * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
  * @throws { BusinessError } 13900004 - Interrupted system call
  * @throws { BusinessError } 13900005 - I/O error
  * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900012 - Permission denied
+ * @throws { BusinessError } 13900010 - Try again
  * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
  * @throws { BusinessError } 13900019 - Is a directory
  * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900023 - Text file busy
  * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+ * @throws { BusinessError } 13900025 - No space left on device
+ * @throws { BusinessError } 13900034 - Operation would block
+ * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @crossplatform
  * @atomicservice
- * @since 11
+ * @since 20
  */
-declare function truncate(file: string | number, len: number, callback: AsyncCallback<void>): void;
+function readText(filePath: string, callback: AsyncCallback<string>): void;
 
 /**
- * Truncate file with sync interface.
+ * Read text.
  *
- * @param { string | number } file - path or file descriptor.
- * @param { number } [len = 0] - len.
+ * @param { string } filePath - file path.
+ * @param { ReadTextOptions } [options] - options.
+ * @param { AsyncCallback<string> } callback - The callback is used to return the contents of the read file.
  * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
  * @throws { BusinessError } 13900004 - Interrupted system call
  * @throws { BusinessError } 13900005 - I/O error
  * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900012 - Permission denied
+ * @throws { BusinessError } 13900010 - Try again
  * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
  * @throws { BusinessError } 13900019 - Is a directory
  * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900023 - Text file busy
  * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+ * @throws { BusinessError } 13900025 - No space left on device
+ * @throws { BusinessError } 13900034 - Operation would block
+ * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
+ * @crossplatform
+ * @atomicservice
+ * @since 20
  */
+function readText(
+  filePath: string,
+  options: ReadTextOptions,
+  callback: AsyncCallback<string>
+): void;
+
 /**
- * Truncate file with sync interface.
+ * Read text with sync interface.
  *
- * @param { string | number } file - path or file descriptor.
- * @param { number } [len = 0] - len.
+ * @param { string } filePath - file path.
+ * @param { ReadTextOptions } [options] - options.
+ * @returns { string } Returns the contents of the read file.
  * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900002 - No such file or directory
  * @throws { BusinessError } 13900004 - Interrupted system call
  * @throws { BusinessError } 13900005 - I/O error
  * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900012 - Permission denied
+ * @throws { BusinessError } 13900010 - Try again
  * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900018 - Not a directory
  * @throws { BusinessError } 13900019 - Is a directory
  * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900023 - Text file busy
  * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+ * @throws { BusinessError } 13900025 - No space left on device
+ * @throws { BusinessError } 13900034 - Operation would block
+ * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
+ * @throws { BusinessError } 13900044 - Network is unreachable
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @crossplatform
- * @since 10
+ * @atomicservice
+ * @since 20
  */
+function readTextSync(
+  filePath: string,
+  options?: ReadTextOptions
+): string;
+
 /**
- * Truncate file with sync interface.
+ * Rename file.
  *
- * @param { string | number } file - path or file descriptor.
- * @param { number } [len = 0] - len.
+ * @param { string } oldPath - oldPath.
+ * @param { string } newPath - newPath.
+ * @returns { Promise<void> } The promise returned by the function.
  * @throws { BusinessError } 13900001 - Operation not permitted
  * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
  * @throws { BusinessError } 13900008 - Bad file descriptor
+ * @throws { BusinessError } 13900011 - Out of memory
  * @throws { BusinessError } 13900012 - Permission denied
  * @throws { BusinessError } 13900013 - Bad address
+ * @throws { BusinessError } 13900014 - Device or resource busy
+ * @throws { BusinessError } 13900015 - File exists
+ * @throws { BusinessError } 13900016 - Cross-device link
  * @throws { BusinessError } 13900018 - Not a directory
  * @throws { BusinessError } 13900019 - Is a directory
  * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900023 - Text file busy
- * @throws { BusinessError } 13900024 - File too large
+ * @throws { BusinessError } 13900025 - No space left on device
  * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900030 - File name too long
+ * @throws { BusinessError } 13900028 - Too many links
+ * @throws { BusinessError } 13900032 - Directory not empty
  * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+ * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @crossplatform
  * @atomicservice
- * @since 11
+ * @since 20
  */
-declare function truncateSync(file: string | number, len?: number): void;
+function rename(oldPath: string, newPath: string): Promise<void>;
 
 /**
- * Delete file.
+ * Rename file.
  *
- * @param { string } path - path.
- * @returns { Promise<void> } The promise returned by the function.
+ * @param { string } oldPath - oldPath.
+ * @param { string } newPath - newPath.
+ * @param { AsyncCallback<void> } callback - Returns the callback function.
  * @throws { BusinessError } 13900001 - Operation not permitted
  * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900005 - I/O error
  * @throws { BusinessError } 13900008 - Bad file descriptor
  * @throws { BusinessError } 13900011 - Out of memory
  * @throws { BusinessError } 13900012 - Permission denied
  * @throws { BusinessError } 13900013 - Bad address
  * @throws { BusinessError } 13900014 - Device or resource busy
+ * @throws { BusinessError } 13900015 - File exists
+ * @throws { BusinessError } 13900016 - Cross-device link
  * @throws { BusinessError } 13900018 - Not a directory
  * @throws { BusinessError } 13900019 - Is a directory
  * @throws { BusinessError } 13900020 - Invalid argument
+ * @throws { BusinessError } 13900025 - No space left on device
  * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900030 - File name too long
+ * @throws { BusinessError } 13900028 - Too many links
+ * @throws { BusinessError } 13900032 - Directory not empty
  * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+ * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
+ * @crossplatform
+ * @atomicservice
+ * @since 20
  */
+function rename(oldPath: string, newPath: string, callback: AsyncCallback<void>): void;
+
 /**
- * Delete file.
+ * Rename file with sync interface.
  *
- * @param { string } path - path.
- * @returns { Promise<void> } The promise returned by the function.
+ * @param { string } oldPath - oldPath.
+ * @param { string } newPath - newPath.
  * @throws { BusinessError } 13900001 - Operation not permitted
  * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900005 - I/O error
  * @throws { BusinessError } 13900008 - Bad file descriptor
  * @throws { BusinessError } 13900011 - Out of memory
  * @throws { BusinessError } 13900012 - Permission denied
  * @throws { BusinessError } 13900013 - Bad address
  * @throws { BusinessError } 13900014 - Device or resource busy
+ * @throws { BusinessError } 13900015 - File exists
+ * @throws { BusinessError } 13900016 - Cross-device link
  * @throws { BusinessError } 13900018 - Not a directory
  * @throws { BusinessError } 13900019 - Is a directory
  * @throws { BusinessError } 13900020 - Invalid argument
+ * @throws { BusinessError } 13900025 - No space left on device
  * @throws { BusinessError } 13900027 - Read-only file system
- * @throws { BusinessError } 13900030 - File name too long
+ * @throws { BusinessError } 13900028 - Too many links
+ * @throws { BusinessError } 13900032 - Directory not empty
  * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+ * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @crossplatform
- * @since 10
+ * @atomicservice
+ * @since 20
  */
+function renameSync(oldPath: string, newPath: string): void;
+
 /**
- * Delete file.
+ * Delete dir.
  *
  * @param { string } path - path.
  * @returns { Promise<void> } The promise returned by the function.
  * @throws { BusinessError } 13900001 - Operation not permitted
  * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
  * @throws { BusinessError } 13900011 - Out of memory
  * @throws { BusinessError } 13900012 - Permission denied
  * @throws { BusinessError } 13900013 - Bad address
  * @throws { BusinessError } 13900014 - Device or resource busy
  * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
  * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900027 - Read-only file system
+ * @throws { BusinessError } 13900027 - Read-only file system1
  * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+ * @throws { BusinessError } 13900032 - Directory not empty
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @crossplatform
  * @atomicservice
- * @since 11
+ * @since 20
  */
-declare function unlink(path: string): Promise<void>;
+function rmdir(path: string): Promise<void>;
 
 /**
- * Delete file.
+ * Delete dir.
  *
  * @param { string } path - path.
  * @param { AsyncCallback<void> } callback - Return the callback function.
  * @throws { BusinessError } 13900001 - Operation not permitted
  * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
  * @throws { BusinessError } 13900011 - Out of memory
  * @throws { BusinessError } 13900012 - Permission denied
  * @throws { BusinessError } 13900013 - Bad address
  * @throws { BusinessError } 13900014 - Device or resource busy
  * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
  * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900027 - Read-only file system
+ * @throws { BusinessError } 13900027 - Read-only file system1
  * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+ * @throws { BusinessError } 13900032 - Directory not empty
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
+ * @crossplatform
+ * @atomicservice
+ * @since 20
  */
+function rmdir(path: string, callback: AsyncCallback<void>): void;
+
 /**
- * Delete file.
+ * Delete dir with sync interface.
  *
  * @param { string } path - path.
- * @param { AsyncCallback<void> } callback - Return the callback function.
  * @throws { BusinessError } 13900001 - Operation not permitted
  * @throws { BusinessError } 13900002 - No such file or directory
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
  * @throws { BusinessError } 13900011 - Out of memory
  * @throws { BusinessError } 13900012 - Permission denied
  * @throws { BusinessError } 13900013 - Bad address
  * @throws { BusinessError } 13900014 - Device or resource busy
  * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
  * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900027 - Read-only file system
+ * @throws { BusinessError } 13900027 - Read-only file system1
  * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+ * @throws { BusinessError } 13900032 - Directory not empty
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @crossplatform
- * @since 10
+ * @atomicservice
+ * @since 20
  */
+function rmdirSync(path: string): void;
+
 /**
- * Delete file.
+ * Get file information.
  *
- * @param { string } path - path.
- * @param { AsyncCallback<void> } callback - Return the callback function.
- * @throws { BusinessError } 13900001 - Operation not permitted
+ * @param { string | number } file - path or file descriptor.
+ * @returns { Promise<Stat> } Returns the Stat object in promise mode.
  * @throws { BusinessError } 13900002 - No such file or directory
+ * @throws { BusinessError } 13900004 - Interrupted system call
  * @throws { BusinessError } 13900005 - I/O error
  * @throws { BusinessError } 13900008 - Bad file descriptor
  * @throws { BusinessError } 13900011 - Out of memory
  * @throws { BusinessError } 13900012 - Permission denied
  * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
  * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900027 - Read-only file system
  * @throws { BusinessError } 13900030 - File name too long
+ * @throws { BusinessError } 13900031 - Function not implemented
  * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+ * @throws { BusinessError } 13900038 - Value too large for defined data type
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @crossplatform
  * @atomicservice
- * @since 11
+ * @since 20
  */
-declare function unlink(path: string, callback: AsyncCallback<void>): void;
+function stat(file: string | number): Promise<Stat>;
 
 /**
- * Delete file with sync interface.
+ * Get file information.
  *
- * @param { string } path - path.
- * @throws { BusinessError } 13900001 - Operation not permitted
+ * @param { string | number } file - path or file descriptor.
+ * @param { AsyncCallback<Stat> } callback - The callback is used to return the Stat object.
  * @throws { BusinessError } 13900002 - No such file or directory
+ * @throws { BusinessError } 13900004 - Interrupted system call
  * @throws { BusinessError } 13900005 - I/O error
  * @throws { BusinessError } 13900008 - Bad file descriptor
  * @throws { BusinessError } 13900011 - Out of memory
  * @throws { BusinessError } 13900012 - Permission denied
  * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
  * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900027 - Read-only file system
  * @throws { BusinessError } 13900030 - File name too long
+ * @throws { BusinessError } 13900031 - Function not implemented
  * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+ * @throws { BusinessError } 13900038 - Value too large for defined data type
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
+ * @crossplatform
+ * @atomicservice
+ * @since 20
  */
+function stat(file: string | number, callback: AsyncCallback<Stat>): void;
+
 /**
- * Delete file with sync interface.
+ * Get file information with sync interface.
  *
- * @param { string } path - path.
- * @throws { BusinessError } 13900001 - Operation not permitted
+ * @param { string | number } file - path or file descriptor.
+ * @returns { Stat } Returns the Stat object.
  * @throws { BusinessError } 13900002 - No such file or directory
+ * @throws { BusinessError } 13900004 - Interrupted system call
  * @throws { BusinessError } 13900005 - I/O error
  * @throws { BusinessError } 13900008 - Bad file descriptor
  * @throws { BusinessError } 13900011 - Out of memory
  * @throws { BusinessError } 13900012 - Permission denied
  * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
  * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900027 - Read-only file system
  * @throws { BusinessError } 13900030 - File name too long
+ * @throws { BusinessError } 13900031 - Function not implemented
  * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+ * @throws { BusinessError } 13900038 - Value too large for defined data type
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @crossplatform
- * @since 10
+ * @atomicservice
+ * @since 20
  */
+function statSync(file: string | number): Stat;
+
 /**
- * Delete file with sync interface.
+ * Link file.
  *
- * @param { string } path - path.
+ * @param { string } target - target.
+ * @param { string } srcPath - srcPath.
+ * @returns { Promise<void> } The promise returned by the function.
  * @throws { BusinessError } 13900001 - Operation not permitted
  * @throws { BusinessError } 13900002 - No such file or directory
  * @throws { BusinessError } 13900005 - I/O error
@@ -6041,247 +2679,285 @@ declare function unlink(path: string, callback: AsyncCallback<void>): void;
  * @throws { BusinessError } 13900011 - Out of memory
  * @throws { BusinessError } 13900012 - Permission denied
  * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900014 - Device or resource busy
+ * @throws { BusinessError } 13900015 - File exists
  * @throws { BusinessError } 13900018 - Not a directory
- * @throws { BusinessError } 13900019 - Is a directory
- * @throws { BusinessError } 13900020 - Invalid argument
+ * @throws { BusinessError } 13900025 - No space left on device
  * @throws { BusinessError } 13900027 - Read-only file system
  * @throws { BusinessError } 13900030 - File name too long
- * @throws { BusinessError } 13900033 - Too many symbolic links encountered
+ * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
+ * @since 20
  */
-declare function unlinkSync(path: string): void;
+function symlink(target: string, srcPath: string): Promise<void>;
 
 /**
- * Change file mtime.
+ * Link file.
  *
- * @param { string } path - path.
- * @param { number } mtime - last modification time
+ * @param { string } target - target.
+ * @param { string } srcPath - srcPath.
+ * @param { AsyncCallback<void> } callback - Return the callback function.
  * @throws { BusinessError } 13900001 - Operation not permitted
  * @throws { BusinessError } 13900002 - No such file or directory
+ * @throws { BusinessError } 13900005 - I/O error
+ * @throws { BusinessError } 13900008 - Bad file descriptor
+ * @throws { BusinessError } 13900011 - Out of memory
  * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900020 - Invalid argument
+ * @throws { BusinessError } 13900013 - Bad address
+ * @throws { BusinessError } 13900015 - File exists
+ * @throws { BusinessError } 13900018 - Not a directory
+ * @throws { BusinessError } 13900025 - No space left on device
  * @throws { BusinessError } 13900027 - Read-only file system
+ * @throws { BusinessError } 13900030 - File name too long
+ * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 11
+ * @since 20
  */
+function symlink(target: string, srcPath: string, callback: AsyncCallback<void>): void;
+
 /**
- * Change file mtime.
+ * Link file with sync interface.
  *
- * @param { string } path - path.
- * @param { number } mtime - last modification time
+ * @param { string } target - target.
+ * @param { string } srcPath - srcPath.
  * @throws { BusinessError } 13900001 - Operation not permitted
  * @throws { BusinessError } 13900002 - No such file or directory
+ * @throws { BusinessError } 13900005 - I/O error
+ * @throws { BusinessError } 13900008 - Bad file descriptor
+ * @throws { BusinessError } 13900011 - Out of memory
  * @throws { BusinessError } 13900012 - Permission denied
- * @throws { BusinessError } 13900020 - Invalid argument
+ * @throws { BusinessError } 13900013 - Bad address
+ * @throws { BusinessError } 13900015 - File exists
+ * @throws { BusinessError } 13900018 - Not a directory
+ * @throws { BusinessError } 13900025 - No space left on device
  * @throws { BusinessError } 13900027 - Read-only file system
+ * @throws { BusinessError } 13900030 - File name too long
+ * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 12
+ * @since 20
  */
-declare function utimes(path: string, mtime: number): void;
+function symlinkSync(target: string, srcPath: string): void;
 
 /**
- * Write file.
+ * Truncate file.
  *
- * @param { number } fd - file descriptor.
- * @param { ArrayBuffer | string } buffer - buffer.
- * @param { object } [options] - options.
- * @returns { Promise<number> } Returns the number of bytes written to the file in promise mode.
+ * @param { string | number } file - path or file descriptor.
+ * @param { number } [len = 0] - len.
+ * @returns { Promise<void> } The promise returned by the function.
  * @throws { BusinessError } 13900001 - Operation not permitted
+ * @throws { BusinessError } 13900002 - No such file or directory
  * @throws { BusinessError } 13900004 - Interrupted system call
  * @throws { BusinessError } 13900005 - I/O error
  * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
+ * @throws { BusinessError } 13900012 - Permission denied
  * @throws { BusinessError } 13900013 - Bad address
+ * @throws { BusinessError } 13900018 - Not a directory
+ * @throws { BusinessError } 13900019 - Is a directory
  * @throws { BusinessError } 13900020 - Invalid argument
+ * @throws { BusinessError } 13900023 - Text file busy
  * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900041 - Quota exceeded
+ * @throws { BusinessError } 13900027 - Read-only file system
+ * @throws { BusinessError } 13900030 - File name too long
+ * @throws { BusinessError } 13900033 - Too many symbolic links encountered
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
+ * @crossplatform
+ * @atomicservice
+ * @since 20
  */
+function truncate(file: string | number, len?: number): Promise<void>;
+
 /**
- * Write file.
+ * Truncate file.
  *
- * @param { number } fd - file descriptor.
- * @param { ArrayBuffer | string } buffer - buffer.
- * @param { object } [options] - options.
- * @returns { Promise<number> } Returns the number of bytes written to the file in promise mode.
+ * @param { string | number } file - path or file descriptor.
+ * @param { AsyncCallback<void> } callback - Return the callback function.
  * @throws { BusinessError } 13900001 - Operation not permitted
+ * @throws { BusinessError } 13900002 - No such file or directory
  * @throws { BusinessError } 13900004 - Interrupted system call
  * @throws { BusinessError } 13900005 - I/O error
  * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
+ * @throws { BusinessError } 13900012 - Permission denied
  * @throws { BusinessError } 13900013 - Bad address
+ * @throws { BusinessError } 13900018 - Not a directory
+ * @throws { BusinessError } 13900019 - Is a directory
  * @throws { BusinessError } 13900020 - Invalid argument
+ * @throws { BusinessError } 13900023 - Text file busy
  * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900041 - Quota exceeded
+ * @throws { BusinessError } 13900027 - Read-only file system
+ * @throws { BusinessError } 13900030 - File name too long
+ * @throws { BusinessError } 13900033 - Too many symbolic links encountered
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @crossplatform
- * @since 10
+ * @atomicservice
+ * @since 20
  */
+function truncate(file: string | number, callback: AsyncCallback<void>): void;
+
 /**
- * Write file.
+ * Truncate file.
  *
- * @param { number } fd - file descriptor.
- * @param { ArrayBuffer | string } buffer - buffer.
- * @param { WriteOptions } [options] - options.
- * @returns { Promise<number> } Returns the number of bytes written to the file in promise mode.
+ * @param { string | number } file - path or file descriptor.
+ * @param { number } [len = 0] - len.
+ * @param { AsyncCallback<void> } callback - Return the callback function.
  * @throws { BusinessError } 13900001 - Operation not permitted
+ * @throws { BusinessError } 13900002 - No such file or directory
  * @throws { BusinessError } 13900004 - Interrupted system call
  * @throws { BusinessError } 13900005 - I/O error
  * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
+ * @throws { BusinessError } 13900012 - Permission denied
  * @throws { BusinessError } 13900013 - Bad address
+ * @throws { BusinessError } 13900018 - Not a directory
+ * @throws { BusinessError } 13900019 - Is a directory
  * @throws { BusinessError } 13900020 - Invalid argument
+ * @throws { BusinessError } 13900023 - Text file busy
  * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900041 - Quota exceeded
+ * @throws { BusinessError } 13900027 - Read-only file system
+ * @throws { BusinessError } 13900030 - File name too long
+ * @throws { BusinessError } 13900033 - Too many symbolic links encountered
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @crossplatform
  * @atomicservice
- * @since 11
+ * @since 20
  */
-declare function write(
-  fd: number,
-  buffer: ArrayBuffer | string,
-  options?: WriteOptions
-): Promise<number>;
+function truncate(file: string | number, len: number, callback: AsyncCallback<void>): void;
 
 /**
- * Write file.
+ * Truncate file with sync interface.
  *
- * @param { number } fd - file descriptor.
- * @param { ArrayBuffer | string } buffer - buffer.
- * @param { AsyncCallback<number> } callback - The callback is used to return the number of bytes written to the file.
+ * @param { string | number } file - path or file descriptor.
+ * @param { number } [len = 0] - len.
  * @throws { BusinessError } 13900001 - Operation not permitted
+ * @throws { BusinessError } 13900002 - No such file or directory
  * @throws { BusinessError } 13900004 - Interrupted system call
  * @throws { BusinessError } 13900005 - I/O error
  * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
+ * @throws { BusinessError } 13900012 - Permission denied
  * @throws { BusinessError } 13900013 - Bad address
+ * @throws { BusinessError } 13900018 - Not a directory
+ * @throws { BusinessError } 13900019 - Is a directory
  * @throws { BusinessError } 13900020 - Invalid argument
+ * @throws { BusinessError } 13900023 - Text file busy
  * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900041 - Quota exceeded
+ * @throws { BusinessError } 13900027 - Read-only file system
+ * @throws { BusinessError } 13900030 - File name too long
+ * @throws { BusinessError } 13900033 - Too many symbolic links encountered
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
+ * @crossplatform
+ * @atomicservice
+ * @since 20
  */
+function truncateSync(file: string | number, len?: number): void;
+
 /**
- * Write file.
+ * Delete file.
  *
- * @param { number } fd - file descriptor.
- * @param { ArrayBuffer | string } buffer - buffer.
- * @param { AsyncCallback<number> } callback - The callback is used to return the number of bytes written to the file.
+ * @param { string } path - path.
+ * @returns { Promise<void> } The promise returned by the function.
  * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900004 - Interrupted system call
+ * @throws { BusinessError } 13900002 - No such file or directory
  * @throws { BusinessError } 13900005 - I/O error
  * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
+ * @throws { BusinessError } 13900011 - Out of memory
+ * @throws { BusinessError } 13900012 - Permission denied
  * @throws { BusinessError } 13900013 - Bad address
+ * @throws { BusinessError } 13900014 - Device or resource busy
+ * @throws { BusinessError } 13900018 - Not a directory
+ * @throws { BusinessError } 13900019 - Is a directory
  * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900041 - Quota exceeded
+ * @throws { BusinessError } 13900027 - Read-only file system
+ * @throws { BusinessError } 13900030 - File name too long
+ * @throws { BusinessError } 13900033 - Too many symbolic links encountered
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @crossplatform
- * @since 10
+ * @atomicservice
+ * @since 20
  */
+function unlink(path: string): Promise<void>;
+
 /**
- * Write file.
+ * Delete file.
  *
- * @param { number } fd - file descriptor.
- * @param { ArrayBuffer | string } buffer - buffer.
- * @param { AsyncCallback<number> } callback - The callback is used to return the number of bytes written to the file.
+ * @param { string } path - path.
+ * @param { AsyncCallback<void> } callback - Return the callback function.
  * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900004 - Interrupted system call
+ * @throws { BusinessError } 13900002 - No such file or directory
  * @throws { BusinessError } 13900005 - I/O error
  * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
+ * @throws { BusinessError } 13900011 - Out of memory
+ * @throws { BusinessError } 13900012 - Permission denied
  * @throws { BusinessError } 13900013 - Bad address
- * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900041 - Quota exceeded
+ * @throws { BusinessError } 13900014 - Device or resource busy
+ * @throws { BusinessError } 13900018 - Not a directory
+ * @throws { BusinessError } 13900019 - Is a directory
+ * @throws { BusinessError } 13900020 - Invalid argument
+ * @throws { BusinessError } 13900027 - Read-only file system
+ * @throws { BusinessError } 13900030 - File name too long
+ * @throws { BusinessError } 13900033 - Too many symbolic links encountered
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @crossplatform
  * @atomicservice
- * @since 11
+ * @since 20
  */
-declare function write(fd: number, buffer: ArrayBuffer | string, callback: AsyncCallback<number>): void;
+function unlink(path: string, callback: AsyncCallback<void>): void;
 
 /**
- * Write file.
+ * Delete file with sync interface.
  *
- * @param { number } fd - file descriptor.
- * @param { ArrayBuffer | string } buffer - buffer.
- * @param { object } [options] - options.
- * @param { AsyncCallback<number> } callback - The callback is used to return the number of bytes written to the file.
+ * @param { string } path - path.
  * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900004 - Interrupted system call
+ * @throws { BusinessError } 13900002 - No such file or directory
  * @throws { BusinessError } 13900005 - I/O error
  * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
+ * @throws { BusinessError } 13900011 - Out of memory
+ * @throws { BusinessError } 13900012 - Permission denied
  * @throws { BusinessError } 13900013 - Bad address
+ * @throws { BusinessError } 13900014 - Device or resource busy
+ * @throws { BusinessError } 13900018 - Not a directory
+ * @throws { BusinessError } 13900019 - Is a directory
  * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900041 - Quota exceeded
+ * @throws { BusinessError } 13900027 - Read-only file system
+ * @throws { BusinessError } 13900030 - File name too long
+ * @throws { BusinessError } 13900033 - Too many symbolic links encountered
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
+ * @crossplatform
+ * @atomicservice
+ * @since 20
  */
+function unlinkSync(path: string): void;
+
 /**
- * Write file.
+ * Change file mtime.
  *
- * @param { number } fd - file descriptor.
- * @param { ArrayBuffer | string } buffer - buffer.
- * @param { object } [options] - options.
- * @param { AsyncCallback<number> } callback - The callback is used to return the number of bytes written to the file.
+ * @param { string } path - path.
+ * @param { number } mtime - last modification time
  * @throws { BusinessError } 13900001 - Operation not permitted
- * @throws { BusinessError } 13900004 - Interrupted system call
- * @throws { BusinessError } 13900005 - I/O error
- * @throws { BusinessError } 13900008 - Bad file descriptor
- * @throws { BusinessError } 13900010 - Try again
- * @throws { BusinessError } 13900013 - Bad address
+ * @throws { BusinessError } 13900002 - No such file or directory
+ * @throws { BusinessError } 13900012 - Permission denied
  * @throws { BusinessError } 13900020 - Invalid argument
- * @throws { BusinessError } 13900024 - File too large
- * @throws { BusinessError } 13900025 - No space left on device
- * @throws { BusinessError } 13900034 - Operation would block
- * @throws { BusinessError } 13900041 - Quota exceeded
+ * @throws { BusinessError } 13900027 - Read-only file system
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @crossplatform
- * @since 10
+ * @since 20
  */
+function utimes(path: string, mtime: number): void;
+
 /**
  * Write file.
  *
  * @param { number } fd - file descriptor.
  * @param { ArrayBuffer | string } buffer - buffer.
  * @param { WriteOptions } [options] - options.
- * @param { AsyncCallback<number> } callback - The callback is used to return the number of bytes written to the file.
+ * @returns { Promise<number> } Returns the number of bytes written to the file in promise mode.
  * @throws { BusinessError } 13900001 - Operation not permitted
  * @throws { BusinessError } 13900004 - Interrupted system call
  * @throws { BusinessError } 13900005 - I/O error
@@ -6297,22 +2973,20 @@ declare function write(fd: number, buffer: ArrayBuffer | string, callback: Async
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @crossplatform
  * @atomicservice
- * @since 11
+ * @since 20
  */
-declare function write(
+function write(
   fd: number,
   buffer: ArrayBuffer | string,
-  options: WriteOptions,
-  callback: AsyncCallback<number>
-): void;
+  options?: WriteOptions
+): Promise<number>;
 
 /**
- * Write file with sync interface.
+ * Write file.
  *
  * @param { number } fd - file descriptor.
  * @param { ArrayBuffer | string } buffer - buffer.
- * @param { object } [options] - options.
- * @returns { number } Returns the number of bytes written to the file.
+ * @param { AsyncCallback<number> } callback - The callback is used to return the number of bytes written to the file.
  * @throws { BusinessError } 13900001 - Operation not permitted
  * @throws { BusinessError } 13900004 - Interrupted system call
  * @throws { BusinessError } 13900005 - I/O error
@@ -6326,15 +3000,19 @@ declare function write(
  * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
+ * @crossplatform
+ * @atomicservice
+ * @since 20
  */
+function write(fd: number, buffer: ArrayBuffer | string, callback: AsyncCallback<number>): void;
+
 /**
- * Write file with sync interface.
+ * Write file.
  *
  * @param { number } fd - file descriptor.
  * @param { ArrayBuffer | string } buffer - buffer.
- * @param { object } [options] - options.
- * @returns { number } Returns the number of bytes written to the file.
+ * @param { WriteOptions } [options] - options.
+ * @param { AsyncCallback<number> } callback - The callback is used to return the number of bytes written to the file.
  * @throws { BusinessError } 13900001 - Operation not permitted
  * @throws { BusinessError } 13900004 - Interrupted system call
  * @throws { BusinessError } 13900005 - I/O error
@@ -6349,8 +3027,16 @@ declare function write(
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @crossplatform
- * @since 10
+ * @atomicservice
+ * @since 20
  */
+function write(
+  fd: number,
+  buffer: ArrayBuffer | string,
+  options: WriteOptions,
+  callback: AsyncCallback<number>
+): void;
+
 /**
  * Write file with sync interface.
  *
@@ -6373,9 +3059,9 @@ declare function write(
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @crossplatform
  * @atomicservice
- * @since 11
+ * @since 20
  */
-declare function writeSync(
+function writeSync(
   fd: number,
   buffer: ArrayBuffer | string,
   options?: WriteOptions
@@ -6394,9 +3080,9 @@ declare function writeSync(
  * @throws { BusinessError } 13900045 - Connection failed.
  * @throws { BusinessError } 13900046 - Software caused connection abort.
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 12
+ * @since 20
  */
-declare function connectDfs(networkId: string, listeners: DfsListeners): Promise<void>;
+function connectDfs(networkId: string, listeners: DfsListeners): Promise<void>;
 
 /**
  * Disconnect Distributed File System.
@@ -6409,9 +3095,9 @@ declare function connectDfs(networkId: string, listeners: DfsListeners): Promise
  * <br>2.Incorrect parameter types.
  * @throws { BusinessError } 13600004 - Unmount failed.
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 12
+ * @since 20
  */
-declare function disconnectDfs(networkId: string): Promise<void>;
+function disconnectDfs(networkId: string): Promise<void>;
 
 /**
  * Set extended attributes information of the file.
@@ -6432,9 +3118,9 @@ declare function disconnectDfs(networkId: string): Promise<void>;
  * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 12
+ * @since 20
  */
-declare function setxattr(path: string, key: string, value: string): Promise<void>;
+function setxattr(path: string, key: string, value: string): Promise<void>;
 
 /**
  * Set extended attributes information of the file.
@@ -6454,10 +3140,10 @@ declare function setxattr(path: string, key: string, value: string): Promise<voi
  * @throws { BusinessError } 13900041 - Quota exceeded
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 12
+ * @since 20
  */
 
-declare function setxattrSync(path: string, key: string, value: string): void;
+function setxattrSync(path: string, key: string, value: string): void;
 
 /**
  * Get extended attributes information of the file.
@@ -6475,9 +3161,9 @@ declare function setxattrSync(path: string, key: string, value: string): void;
  * @throws { BusinessError } 13900038 - Value too large for defined data type
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 12
+ * @since 20
  */
-declare function getxattr(path: string, key: string): Promise<string>;
+function getxattr(path: string, key: string): Promise<string>;
 
 /**
  * Get extended attributes information of the file with sync interface.
@@ -6495,23 +3181,23 @@ declare function getxattr(path: string, key: string): Promise<string>;
  * @throws { BusinessError } 13900038 - Value too large for defined data type
  * @throws { BusinessError } 13900042 - Unknown error
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 12
+ * @since 20
  */
-declare function getxattrSync(path: string, key: string): string;
+function getxattrSync(path: string, key: string): string;
 
 /**
  * Progress data of copyFile
  *
  * @typedef Progress
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 11
+ * @since 20
  */
 interface Progress {
   /**
    * @type { number }
    * @readonly
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 11
+   * @since 20
    */
   readonly processedSize: number;
 
@@ -6519,7 +3205,7 @@ interface Progress {
    * @type { number }
    * @readonly
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 11
+   * @since 20
    */
   readonly totalSize: number;
 }
@@ -6528,9 +3214,9 @@ interface Progress {
  * Task signal.
  *
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 12
+ * @since 20
  */
-declare class TaskSignal {
+class TaskSignal {
   /**
    * Cancel the copy task in progress.
    *
@@ -6538,7 +3224,7 @@ declare class TaskSignal {
    * @throws { BusinessError } 13900012 - Permission denied by the file system
    * @throws { BusinessError } 13900043 - No task can be canceled.
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 12
+   * @since 20
    */
   cancel(): void;
 
@@ -6550,7 +3236,7 @@ declare class TaskSignal {
    * @throws { BusinessError } 13900008 - Bad file descriptor
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 12
+   * @since 20
    */
   onCancel(): Promise<string>;
 }
@@ -6560,7 +3246,7 @@ declare class TaskSignal {
  *
  * @typedef CopyOptions
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 11
+ * @since 20
  */
 interface CopyOptions {
   /**
@@ -6568,7 +3254,7 @@ interface CopyOptions {
    *
    * @type { ?ProgressListener }
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 11
+   * @since 20
    */
   progressListener?: ProgressListener;
   /**
@@ -6576,7 +3262,7 @@ interface CopyOptions {
    *
    * @type { ?TaskSignal }
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 12
+   * @since 20
    */
   copySignal?: TaskSignal;
 }
@@ -6587,25 +3273,10 @@ interface CopyOptions {
  * @typedef { function } ProgressListener
  * @param { Progress } progress - indicates the progress data of copyFile
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 11
+ * @since 20
  */
-type ProgressListener = (progress: Progress) => void;
+export type ProgressListener = (progress: Progress) => void;
 
-/**
- * File object.
- *
- * @interface File
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * File object.
- *
- * @interface File
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
 /**
  * File object.
  *
@@ -6613,29 +3284,17 @@ type ProgressListener = (progress: Progress) => void;
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @crossplatform
  * @atomicservice
- * @since 11
+ * @since 20
  */
-declare interface File {
-  /**
-   * @type { number }
-   * @readonly
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
-   */
-  /**
-   * @type { number }
-   * @readonly
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @crossplatform
-   * @since 10
-   */
+interface File {
+
   /**
    * @type { number }
    * @readonly
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
    * @atomicservice
-   * @since 11
+   * @since 20
    */
   readonly fd: number;
 
@@ -6648,7 +3307,7 @@ declare interface File {
    * @throws { BusinessError } 13900042 - Unknown error
    * @throws { BusinessError } 14300002 - Invalid URI
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 10
+   * @since 20
    */
   readonly path: string;
 
@@ -6660,7 +3319,7 @@ declare interface File {
    * @throws { BusinessError } 13900005 - I/O error
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 10
+   * @since 20
    */
   readonly name: string;
 
@@ -6672,7 +3331,7 @@ declare interface File {
    * @throws { BusinessError } 13900042 - Unknown error
    * @throws { BusinessError } 14300002 - Invalid URI
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 11
+   * @since 20
    */
   getParent(): string;
 
@@ -6688,7 +3347,7 @@ declare interface File {
    * @throws { BusinessError } 13900042 - Unknown error
    * @throws { BusinessError } 13900043 - No record locks available
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
+   * @since 20
    */
   lock(exclusive?: boolean): Promise<void>;
 
@@ -6703,7 +3362,7 @@ declare interface File {
    * @throws { BusinessError } 13900042 - Unknown error
    * @throws { BusinessError } 13900043 - No record locks available
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
+   * @since 20
    */
   lock(callback: AsyncCallback<void>): void;
 
@@ -6719,7 +3378,7 @@ declare interface File {
    * @throws { BusinessError } 13900042 - Unknown error
    * @throws { BusinessError } 13900043 - No record locks available
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
+   * @since 20
    */
   lock(exclusive: boolean, callback: AsyncCallback<void>): void;
 
@@ -6734,7 +3393,7 @@ declare interface File {
    * @throws { BusinessError } 13900042 - Unknown error
    * @throws { BusinessError } 13900043 - No record locks available
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
+   * @since 20
    */
   tryLock(exclusive?: boolean): void;
 
@@ -6748,7 +3407,7 @@ declare interface File {
    * @throws { BusinessError } 13900042 - Unknown error
    * @throws { BusinessError } 13900043 - No record locks available
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
+   * @since 20
    */
   unlock(): void;
 }
@@ -6758,9 +3417,9 @@ declare interface File {
  *
  * @interface RandomAccessFile
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 10
+ * @since 20
  */
-declare interface RandomAccessFile {
+interface RandomAccessFile {
 
   /**
    * File descriptor
@@ -6768,7 +3427,7 @@ declare interface RandomAccessFile {
    * @type { number }
    * @readonly
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 10
+   * @since 20
    */
   readonly fd: number;
 
@@ -6778,7 +3437,7 @@ declare interface RandomAccessFile {
    * @type { number }
    * @readonly
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 10
+   * @since 20
    */
   readonly filePointer: number;
 
@@ -6792,7 +3451,7 @@ declare interface RandomAccessFile {
    * @throws { BusinessError } 13900020 - Invalid argument
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 10
+   * @since 20
    */
   setFilePointer(filePointer: number): void;
 
@@ -6806,31 +3465,10 @@ declare interface RandomAccessFile {
    * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 10
+   * @since 20
    */
   close(): void;
 
-  /**
-   * Write randomAccessFile.
-   *
-   * @param { ArrayBuffer | string } buffer - buffer.
-   * @param { object } [options] - options.
-   * @returns { Promise<number> } Returns the number of bytes written to the file in promise mode.
-   * @throws { BusinessError } 13900001 - Operation not permitted
-   * @throws { BusinessError } 13900004 - Interrupted system call
-   * @throws { BusinessError } 13900005 - I/O error
-   * @throws { BusinessError } 13900008 - Bad file descriptor
-   * @throws { BusinessError } 13900010 - Try again
-   * @throws { BusinessError } 13900013 - Bad address
-   * @throws { BusinessError } 13900020 - Invalid argument
-   * @throws { BusinessError } 13900024 - File too large
-   * @throws { BusinessError } 13900025 - No space left on device
-   * @throws { BusinessError } 13900034 - Operation would block
-   * @throws { BusinessError } 13900041 - Quota exceeded
-   * @throws { BusinessError } 13900042 - Unknown error
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 10
-   */
   /**
    * Write randomAccessFile.
    *
@@ -6850,7 +3488,7 @@ declare interface RandomAccessFile {
    * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 11
+   * @since 20
    */
   write(
     buffer: ArrayBuffer | string,
@@ -6875,31 +3513,10 @@ declare interface RandomAccessFile {
    * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 10
+   * @since 20
    */
   write(buffer: ArrayBuffer | string, callback: AsyncCallback<number>): void;
 
-  /**
-   * Write randomAccessFile.
-   *
-   * @param { ArrayBuffer | string } buffer - buffer.
-   * @param { object } [options] - options.
-   * @param { AsyncCallback<number> } callback - The callback is used to return the number of bytes written to the file.
-   * @throws { BusinessError } 13900001 - Operation not permitted
-   * @throws { BusinessError } 13900004 - Interrupted system call
-   * @throws { BusinessError } 13900005 - I/O error
-   * @throws { BusinessError } 13900008 - Bad file descriptor
-   * @throws { BusinessError } 13900010 - Try again
-   * @throws { BusinessError } 13900013 - Bad address
-   * @throws { BusinessError } 13900020 - Invalid argument
-   * @throws { BusinessError } 13900024 - File too large
-   * @throws { BusinessError } 13900025 - No space left on device
-   * @throws { BusinessError } 13900034 - Operation would block
-   * @throws { BusinessError } 13900041 - Quota exceeded
-   * @throws { BusinessError } 13900042 - Unknown error
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 10
-   */
   /**
    * Write randomAccessFile.
    *
@@ -6919,7 +3536,7 @@ declare interface RandomAccessFile {
    * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 11
+   * @since 20
    */
   write(
     buffer: ArrayBuffer | string,
@@ -6927,27 +3544,6 @@ declare interface RandomAccessFile {
     callback: AsyncCallback<number>
   ): void;
 
-  /**
-   * Write randomAccessFile with sync interface.
-   *
-   * @param { ArrayBuffer | string } buffer - buffer.
-   * @param { object } [options] - options.
-   * @returns { number } Returns the number of bytes written to the file.
-   * @throws { BusinessError } 13900001 - Operation not permitted
-   * @throws { BusinessError } 13900004 - Interrupted system call
-   * @throws { BusinessError } 13900005 - I/O error
-   * @throws { BusinessError } 13900008 - Bad file descriptor
-   * @throws { BusinessError } 13900010 - Try again
-   * @throws { BusinessError } 13900013 - Bad address
-   * @throws { BusinessError } 13900020 - Invalid argument
-   * @throws { BusinessError } 13900024 - File too large
-   * @throws { BusinessError } 13900025 - No space left on device
-   * @throws { BusinessError } 13900034 - Operation would block
-   * @throws { BusinessError } 13900041 - Quota exceeded
-   * @throws { BusinessError } 13900042 - Unknown error
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 10
-   */
   /**
    * Write randomAccessFile with sync interface.
    *
@@ -6967,49 +3563,13 @@ declare interface RandomAccessFile {
    * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 11
+   * @since 20
    */
   writeSync(
     buffer: ArrayBuffer | string,
     options?: WriteOptions
   ): number;
 
-  /**
-   * Read randomAccessFile.
-   *
-   * @param { ArrayBuffer } buffer - buffer.
-   * @param { object } [options] - options.
-   * @returns { Promise<number> } Returns the number of file bytes read to buffer in promise mode.
-   * @throws { BusinessError } 13900004 - Interrupted system call
-   * @throws { BusinessError } 13900005 - I/O error
-   * @throws { BusinessError } 13900008 - Bad file descriptor
-   * @throws { BusinessError } 13900010 - Try again
-   * @throws { BusinessError } 13900013 - Bad address
-   * @throws { BusinessError } 13900019 - Is a directory
-   * @throws { BusinessError } 13900020 - Invalid argument
-   * @throws { BusinessError } 13900034 - Operation would block
-   * @throws { BusinessError } 13900042 - Unknown error
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 10
-   */
-  /**
-   * Read randomAccessFile.
-   *
-   * @param { ArrayBuffer } buffer - buffer.
-   * @param { ReadOptions } [options] - options.
-   * @returns { Promise<number> } Returns the number of file bytes read to buffer in promise mode.
-   * @throws { BusinessError } 13900004 - Interrupted system call
-   * @throws { BusinessError } 13900005 - I/O error
-   * @throws { BusinessError } 13900008 - Bad file descriptor
-   * @throws { BusinessError } 13900010 - Try again
-   * @throws { BusinessError } 13900013 - Bad address
-   * @throws { BusinessError } 13900019 - Is a directory
-   * @throws { BusinessError } 13900020 - Invalid argument
-   * @throws { BusinessError } 13900034 - Operation would block
-   * @throws { BusinessError } 13900042 - Unknown error
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 11
-   */
   /**
    * Read randomAccessFile.
    *
@@ -7027,7 +3587,7 @@ declare interface RandomAccessFile {
    * @throws { BusinessError } 13900042 - Unknown error
    * @throws { BusinessError } 13900044 - Network is unreachable
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 12
+   * @since 20
    */
   read(
     buffer: ArrayBuffer,
@@ -7049,28 +3609,10 @@ declare interface RandomAccessFile {
    * @throws { BusinessError } 13900034 - Operation would block
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 10
+   * @since 20
    */
   read(buffer: ArrayBuffer, callback: AsyncCallback<number>): void;
 
-  /**
-   * Read randomAccessFile.
-   *
-   * @param { ArrayBuffer } buffer - buffer.
-   * @param { object } [options] - options.
-   * @param { AsyncCallback<number> } callback - The callback is used to return the number of file bytes read to buffer.
-   * @throws { BusinessError } 13900004 - Interrupted system call
-   * @throws { BusinessError } 13900005 - I/O error
-   * @throws { BusinessError } 13900008 - Bad file descriptor
-   * @throws { BusinessError } 13900010 - Try again
-   * @throws { BusinessError } 13900013 - Bad address
-   * @throws { BusinessError } 13900019 - Is a directory
-   * @throws { BusinessError } 13900020 - Invalid argument
-   * @throws { BusinessError } 13900034 - Operation would block
-   * @throws { BusinessError } 13900042 - Unknown error
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 10
-   */
   /**
   * Read randomAccessFile.
   *
@@ -7087,7 +3629,7 @@ declare interface RandomAccessFile {
   * @throws { BusinessError } 13900034 - Operation would block
   * @throws { BusinessError } 13900042 - Unknown error
   * @syscap SystemCapability.FileManagement.File.FileIO
-  * @since 11
+  * @since 20
   */
   read(
     buffer: ArrayBuffer,
@@ -7095,42 +3637,6 @@ declare interface RandomAccessFile {
     callback: AsyncCallback<number>
   ): void;
 
-  /**
-   * Read randomAccessFile with sync interface.
-   *
-   * @param { ArrayBuffer } buffer - buffer.
-   * @param { object } [options] - options.
-   * @returns { number } Returns the number of file bytes read to buffer.
-   * @throws { BusinessError } 13900004 - Interrupted system call
-   * @throws { BusinessError } 13900005 - I/O error
-   * @throws { BusinessError } 13900008 - Bad file descriptor
-   * @throws { BusinessError } 13900010 - Try again
-   * @throws { BusinessError } 13900013 - Bad address
-   * @throws { BusinessError } 13900019 - Is a directory
-   * @throws { BusinessError } 13900020 - Invalid argument
-   * @throws { BusinessError } 13900034 - Operation would block
-   * @throws { BusinessError } 13900042 - Unknown error
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 10
-   */
-  /**
-   * Read randomAccessFile with sync interface.
-   *
-   * @param { ArrayBuffer } buffer - buffer.
-   * @param { ReadOptions } [options] - options.
-   * @returns { number } Returns the number of file bytes read to buffer.
-   * @throws { BusinessError } 13900004 - Interrupted system call
-   * @throws { BusinessError } 13900005 - I/O error
-   * @throws { BusinessError } 13900008 - Bad file descriptor
-   * @throws { BusinessError } 13900010 - Try again
-   * @throws { BusinessError } 13900013 - Bad address
-   * @throws { BusinessError } 13900019 - Is a directory
-   * @throws { BusinessError } 13900020 - Invalid argument
-   * @throws { BusinessError } 13900034 - Operation would block
-   * @throws { BusinessError } 13900042 - Unknown error
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 11
-   */
   /**
    * Read randomAccessFile with sync interface.
    *
@@ -7148,7 +3654,7 @@ declare interface RandomAccessFile {
    * @throws { BusinessError } 13900042 - Unknown error
    * @throws { BusinessError } 13900044 - Network is unreachable
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 12
+   * @since 20
    */
   readSync(
     buffer: ArrayBuffer,
@@ -7166,7 +3672,7 @@ declare interface RandomAccessFile {
    * @throws { BusinessError } 13900020 - Invalid argument
    * @throws { BusinessError } 13900042 - Unknown error 
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 12
+   * @since 20
    */
   getReadStream(): ReadStream;
 
@@ -7181,7 +3687,7 @@ declare interface RandomAccessFile {
    * @throws { BusinessError } 13900020 - Invalid argument
    * @throws { BusinessError } 13900042 - Unknown error 
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 12
+   * @since 20
    */
   getWriteStream(): WriteStream;
 }
@@ -7191,14 +3697,14 @@ declare interface RandomAccessFile {
  * 
  * @extends stream.Readable
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 12
+ * @since 20
  */
-declare class ReadStream extends stream.Readable {
+class ReadStream extends stream.Readable {
   /**
     * The ReadStream constructor.
     *
     * @syscap SystemCapability.FileManagement.File.FileIO
-    * @since 12
+    * @since 20
     */
   constructor();
 
@@ -7209,7 +3715,7 @@ declare class ReadStream extends stream.Readable {
    * @readonly
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 12
+   * @since 20
    */
   readonly bytesRead: number;
 
@@ -7220,7 +3726,7 @@ declare class ReadStream extends stream.Readable {
    * @readonly
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 12
+   * @since 20
    */
   readonly path: string;
 
@@ -7235,7 +3741,7 @@ declare class ReadStream extends stream.Readable {
    * @throws { BusinessError } 13900026 - Illegal seek
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 12
+   * @since 20
    */
   seek(offset: number, whence?: WhenceType): number;
 
@@ -7249,7 +3755,7 @@ declare class ReadStream extends stream.Readable {
    * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 12
+   * @since 20
    */
   close(): void;
 }
@@ -7259,14 +3765,14 @@ declare class ReadStream extends stream.Readable {
  * 
  * @extends stream.Writable
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 12
+ * @since 20
  */
-declare class WriteStream extends stream.Writable {
+class WriteStream extends stream.Writable {
   /**
     * The WriteStream constructor.
     *
     * @syscap SystemCapability.FileManagement.File.FileIO
-    * @since 12
+    * @since 20
     */
   constructor();
 
@@ -7277,7 +3783,7 @@ declare class WriteStream extends stream.Writable {
    * @readonly
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 12
+   * @since 20
    */
   readonly bytesWritten: number;
 
@@ -7288,7 +3794,7 @@ declare class WriteStream extends stream.Writable {
    * @readonly
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 12
+   * @since 20
    */
   readonly path: string;
 
@@ -7303,7 +3809,7 @@ declare class WriteStream extends stream.Writable {
    * @throws { BusinessError } 13900026 - Illegal seek
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 12
+   * @since 20
    */
   seek(offset: number, whence?: WhenceType): number;
 
@@ -7317,158 +3823,160 @@ declare class WriteStream extends stream.Writable {
    * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 12
+   * @since 20
    */
   close(): void;
 }
 
 /**
- * Stat object.
- *
- * @interface Stat
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
- */
-/**
- * Stat object.
- *
- * @interface Stat
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
-/**
- * Stat object.
- *
- * @interface Stat
+ * The AtomicFile class provides methods for performing atomic operations on files.
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @atomicservice
- * @since 11
+ * @since 20
  */
-declare interface Stat {
+export class AtomicFile {
   /**
-   * @type { bigint }
-   * @readonly
-   * @throws { BusinessError } 13900005 - I/O error
-   * @throws { BusinessError } 13900042 - Unknown error
+   * The AtomicFile constructor.
+   * @param { string } path file path.
+   * @throws { BusinessError } 401 Parameter error.Possible causes:1.Mandatory parameters are left unspecified; 2.Incorrect parameter types.
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
+   * @since 20
    */
+  constructor(path: string);
+
   /**
-   * @type { bigint }
-   * @readonly
-   * @throws { BusinessError } 13900005 - I/O error
-   * @throws { BusinessError } 13900042 - Unknown error
+   * Get the File object from AtomicFile object.
+   * @returns { File } Returns the file object.
+   * @throws { BusinessError } 13900002 No such file or directory
+   * @throws { BusinessError } 13900005 IO error
+   * @throws { BusinessError } 13900012 Permission denied
+   * @throws { BusinessError } 13900042 Internal error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @crossplatform
-   * @since 10
+   * @since 20
    */
-  readonly ino: bigint;
+  getBaseFile(): File;
+
   /**
-   * @type { number }
-   * @readonly
-   * @throws { BusinessError } 13900005 - I/O error
-   * @throws { BusinessError } 13900042 - Unknown error
+   * Create the file read stream.
+   * @returns { ReadStream } Returns the file read stream.
+   * @throws { BusinessError } 13900001 Operation not permitted
+   * @throws { BusinessError } 13900002 No such file or directory
+   * @throws { BusinessError } 13900012 Permission denied
+   * @throws { BusinessError } 13900042 Internal error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
+   * @since 20
    */
+  openRead(): ReadStream;
+
   /**
-   * @type { number }
-   * @readonly
-   * @throws { BusinessError } 13900005 - I/O error
-   * @throws { BusinessError } 13900042 - Unknown error
+   * Read the entire contents of the file.
+   * @returns { ArrayBuffer } Returns the ArrayBuffer of the file contents.
+   * @throws { BusinessError } 13900005 I/O error
+   * @throws { BusinessError } 13900042 Internal error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @crossplatform
-   * @since 10
+   * @since 20
    */
+  readFully(): ArrayBuffer;
+
   /**
-   * @type { number }
-   * @readonly
-   * @throws { BusinessError } 13900005 - I/O error
-   * @throws { BusinessError } 13900042 - Unknown error
+   * Create the file write stream.
+   * @returns { WriteStream } Returns the file write stream.
+   * @throws { BusinessError } 13900001 Operation not permitted
+   * @throws { BusinessError } 13900002 No such file or directory
+   * @throws { BusinessError } 13900012 Permission denied
+   * @throws { BusinessError } 13900027 Read-only file system
+   * @throws { BusinessError } 13900042 Internal error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @crossplatform
-   * @atomicservice
-   * @since 11
+   * @since 20
    */
-  readonly mode: number;
+  startWrite(): WriteStream;
+
   /**
-   * @type { number }
-   * @readonly
-   * @throws { BusinessError } 13900005 - I/O error
-   * @throws { BusinessError } 13900042 - Unknown error
-   * @throws { BusinessError } 13900005 - I/O error
-   * @throws { BusinessError } 13900042 - Unknown error
+   * If the file is written successfully, the file is closed.
+   * @throws { BusinessError } 13900042 Internal error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
+   * @since 20
    */
+  finishWrite(): void;
+
   /**
-   * @type { number }
-   * @readonly
-   * @throws { BusinessError } 13900005 - I/O error
-   * @throws { BusinessError } 13900042 - Unknown error
-   * @throws { BusinessError } 13900005 - I/O error
-   * @throws { BusinessError } 13900042 - Unknown error
+   * If writing to the file fails, the file is rolled back.
+   * @throws { BusinessError } 13900042 Internal error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @crossplatform
-   * @since 10
+   * @since 20
    */
-  readonly uid: number;
+  failWrite(): void;
+
   /**
-   * @type { number }
-   * @readonly
-   * @throws { BusinessError } 13900005 - I/O error
-   * @throws { BusinessError } 13900042 - Unknown error
+   * Delete all file.
+   * @throws { BusinessError } 13900001 Operation not permitted
+   * @throws { BusinessError } 13900002 No such file or directory
+   * @throws { BusinessError } 13900012 Permission denied
+   * @throws { BusinessError } 13900027 Read-only file system
+   * @throws { BusinessError } 13900042 Internal error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
+   * @since 20
    */
+  delete(): void;
+}
+
+/**
+ * Stat object.
+ *
+ * @interface Stat
+ * @syscap SystemCapability.FileManagement.File.FileIO
+ * @crossplatform
+ * @atomicservice
+ * @since 20
+ */
+interface Stat {
+
   /**
-   * @type { number }
+   * @type { bigint }
    * @readonly
    * @throws { BusinessError } 13900005 - I/O error
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
-   * @since 10
+   * @since 20
    */
-  readonly gid: number;
+  readonly ino: bigint;
+
   /**
    * @type { number }
    * @readonly
    * @throws { BusinessError } 13900005 - I/O error
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
+   * @crossplatform
+   * @atomicservice
+   * @since 20
    */
+  readonly mode: number;
+
   /**
    * @type { number }
    * @readonly
    * @throws { BusinessError } 13900005 - I/O error
    * @throws { BusinessError } 13900042 - Unknown error
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @crossplatform
-   * @since 10
-   */
-  /**
-   * @type { number }
-   * @readonly
    * @throws { BusinessError } 13900005 - I/O error
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
-   * @atomicservice
-   * @since 11
+   * @since 20
    */
-  readonly size: number;
+  readonly uid: number;
+
   /**
    * @type { number }
    * @readonly
    * @throws { BusinessError } 13900005 - I/O error
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
+   * @crossplatform
+   * @since 20
    */
+  readonly gid: number;
+
   /**
    * @type { number }
    * @readonly
@@ -7476,8 +3984,11 @@ declare interface Stat {
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
-   * @since 10
+   * @atomicservice
+   * @since 20
    */
+  readonly size: number;
+
   /**
    * @type { number }
    * @readonly
@@ -7486,17 +3997,22 @@ declare interface Stat {
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
    * @atomicservice
-   * @since 11
+   * @since 20
    */
   readonly atime: number;
+
   /**
    * @type { number }
    * @readonly
    * @throws { BusinessError } 13900005 - I/O error
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
+   * @crossplatform
+   * @atomicservice
+   * @since 20
    */
+  readonly mtime: number;
+
   /**
    * @type { number }
    * @readonly
@@ -7504,56 +4020,50 @@ declare interface Stat {
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
-   * @since 10
+   * @since 20
    */
+  readonly ctime: number;
+
   /**
-   * @type { number }
+   * Returns nanosecond of the access time.
+   * @type { bigint }
    * @readonly
-   * @throws { BusinessError } 13900005 - I/O error
-   * @throws { BusinessError } 13900042 - Unknown error
+   * @throws { BusinessError } 13900042 - Internal error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @crossplatform
-   * @atomicservice
-   * @since 11
+   * @since 20
    */
-  readonly mtime: number;
+  readonly atimeNs?:bigint;
+
   /**
-   * @type { number }
+   * Returns nanosecond of the modification time.
+   * @type { bigint }
    * @readonly
-   * @throws { BusinessError } 13900005 - I/O error
-   * @throws { BusinessError } 13900042 - Unknown error
+   * @throws { BusinessError } 13900042 - Internal error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
+   * @since 20
    */
+  readonly mtimeNs?:bigint;
+
   /**
-   * @type { number }
+   * Returns nanosecond of the change time.
+   * @type { bigint }
    * @readonly
-   * @throws { BusinessError } 13900005 - I/O error
-   * @throws { BusinessError } 13900042 - Unknown error
+   * @throws { BusinessError } 13900042 - Internal error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @crossplatform
-   * @since 10
+   * @since 20
    */
-  readonly ctime: number;
+  readonly ctimeNs?:bigint;
+
   /**
    *
    * @type { LocationType }
    * @readonly
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 11
+   * @since 20
    */
   readonly location: LocationType;
 
-  /**
-   * Whether path/fd is block device.
-   *
-   * @returns { boolean } Returns whether the path/fd point to a block device or not.
-   * @throws { BusinessError } 13900005 - I/O error
-   * @throws { BusinessError } 13900042 - Unknown error
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
-   */
   /**
    * Whether path/fd is block device.
    *
@@ -7562,18 +4072,10 @@ declare interface Stat {
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
-   * @since 10
+   * @since 20
    */
   isBlockDevice(): boolean;
-  /**
-   * Whether path/fd is character device.
-   *
-   * @returns { boolean } Returns whether the path/fd point to a character device or not.
-   * @throws { BusinessError } 13900005 - I/O error
-   * @throws { BusinessError } 13900042 - Unknown error
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
-   */
+
   /**
    * Whether path/fd is character device.
    *
@@ -7582,28 +4084,10 @@ declare interface Stat {
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
-   * @since 10
+   * @since 20
    */
   isCharacterDevice(): boolean;
-  /**
-   * Whether path/fd is directory.
-   *
-   * @returns { boolean } Returns whether the path/fd point to a directory or not.
-   * @throws { BusinessError } 13900005 - I/O error
-   * @throws { BusinessError } 13900042 - Unknown error
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
-   */
-  /**
-   * Whether path/fd is directory.
-   *
-   * @returns { boolean } Returns whether the path/fd point to a directory or not.
-   * @throws { BusinessError } 13900005 - I/O error
-   * @throws { BusinessError } 13900042 - Unknown error
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @crossplatform
-   * @since 10
-   */
+
   /**
    * Whether path/fd is directory.
    *
@@ -7613,18 +4097,10 @@ declare interface Stat {
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
    * @atomicservice
-   * @since 11
+   * @since 20
    */
   isDirectory(): boolean;
-  /**
-   * Whether path/fd is fifo.
-   *
-   * @returns { boolean } Returns whether the path/fd point to a fifo file or not.
-   * @throws { BusinessError } 13900005 - I/O error
-   * @throws { BusinessError } 13900042 - Unknown error
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
-   */
+
   /**
    * Whether path/fd is fifo.
    *
@@ -7633,28 +4109,10 @@ declare interface Stat {
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
-   * @since 10
+   * @since 20
    */
   isFIFO(): boolean;
-  /**
-   * Whether path/fd is file.
-   *
-   * @returns { boolean } Returns whether the path/fd point to a normal file or not.
-   * @throws { BusinessError } 13900005 - I/O error
-   * @throws { BusinessError } 13900042 - Unknown error
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
-   */
-  /**
-   * Whether path/fd is file.
-   *
-   * @returns { boolean } Returns whether the path/fd point to a normal file or not.
-   * @throws { BusinessError } 13900005 - I/O error
-   * @throws { BusinessError } 13900042 - Unknown error
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @crossplatform
-   * @since 10
-   */
+
   /**
    * Whether path/fd is file.
    *
@@ -7664,18 +4122,10 @@ declare interface Stat {
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
    * @atomicservice
-   * @since 11
+   * @since 20
    */
   isFile(): boolean;
-  /**
-   * Whether path/fd is socket.
-   *
-   * @returns { boolean } Returns whether the path/fd point to a socket file or not.
-   * @throws { BusinessError } 13900005 - I/O error
-   * @throws { BusinessError } 13900042 - Unknown error
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
-   */
+
   /**
    * Whether path/fd is socket.
    *
@@ -7684,18 +4134,10 @@ declare interface Stat {
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
-   * @since 10
+   * @since 20
    */
   isSocket(): boolean;
-  /**
-   * Whether path/fd is symbolic link.
-   *
-   * @returns { boolean } Returns whether the path/fd point to a symbolic link or not.
-   * @throws { BusinessError } 13900005 - I/O error
-   * @throws { BusinessError } 13900042 - Unknown error
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
-   */
+
   /**
    * Whether path/fd is symbolic link.
    *
@@ -7704,7 +4146,7 @@ declare interface Stat {
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
-   * @since 10
+   * @since 20
    */
   isSymbolicLink(): boolean;
 }
@@ -7714,9 +4156,9 @@ declare interface Stat {
  *
  * @interface Stream
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
+ * @since 20
  */
-declare interface Stream {
+interface Stream {
   /**
    * Close stream.
    *
@@ -7728,7 +4170,7 @@ declare interface Stream {
    * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
+   * @since 20
    */
   close(): Promise<void>;
 
@@ -7743,7 +4185,7 @@ declare interface Stream {
    * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
+   * @since 20
    */
   close(callback: AsyncCallback<void>): void;
 
@@ -7757,7 +4199,7 @@ declare interface Stream {
    * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
+   * @since 20
    */
   closeSync(): void;
 
@@ -7778,78 +4220,14 @@ declare interface Stream {
    * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
-   */
-  flush(): Promise<void>;
-
-  /**
-   * Flush stream.
-   *
-   * @param { AsyncCallback<void> } callback - Return the callback function.
-   * @throws { BusinessError } 13900001 - Operation not permitted
-   * @throws { BusinessError } 13900004 - Interrupted system call
-   * @throws { BusinessError } 13900005 - I/O error
-   * @throws { BusinessError } 13900008 - Bad file descriptor
-   * @throws { BusinessError } 13900010 - Try again
-   * @throws { BusinessError } 13900013 - Bad address
-   * @throws { BusinessError } 13900020 - Invalid argument
-   * @throws { BusinessError } 13900024 - File too large
-   * @throws { BusinessError } 13900025 - No space left on device
-   * @throws { BusinessError } 13900034 - Operation would block
-   * @throws { BusinessError } 13900041 - Quota exceeded
-   * @throws { BusinessError } 13900042 - Unknown error
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
-   */
-  flush(callback: AsyncCallback<void>): void;
-
-  /**
-   * Flush stream with sync interface.
-   *
-   * @throws { BusinessError } 13900001 - Operation not permitted
-   * @throws { BusinessError } 13900004 - Interrupted system call
-   * @throws { BusinessError } 13900005 - I/O error
-   * @throws { BusinessError } 13900008 - Bad file descriptor
-   * @throws { BusinessError } 13900010 - Try again
-   * @throws { BusinessError } 13900013 - Bad address
-   * @throws { BusinessError } 13900020 - Invalid argument
-   * @throws { BusinessError } 13900024 - File too large
-   * @throws { BusinessError } 13900025 - No space left on device
-   * @throws { BusinessError } 13900034 - Operation would block
-   * @throws { BusinessError } 13900041 - Quota exceeded
-   * @throws { BusinessError } 13900042 - Unknown error
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
-   */
-  flushSync(): void;
-
-  /**
-   * Write stream.
-   *
-   * @param { ArrayBuffer | string } buffer - buffer.
-   * @param { object } [options] - options.
-   * @returns { Promise<number> } Returns the number of file bytes written to file in promise mode.
-   * @throws { BusinessError } 13900001 - Operation not permitted
-   * @throws { BusinessError } 13900004 - Interrupted system call
-   * @throws { BusinessError } 13900005 - I/O error
-   * @throws { BusinessError } 13900008 - Bad file descriptor
-   * @throws { BusinessError } 13900010 - Try again
-   * @throws { BusinessError } 13900013 - Bad address
-   * @throws { BusinessError } 13900020 - Invalid argument
-   * @throws { BusinessError } 13900024 - File too large
-   * @throws { BusinessError } 13900025 - No space left on device
-   * @throws { BusinessError } 13900034 - Operation would block
-   * @throws { BusinessError } 13900041 - Quota exceeded
-   * @throws { BusinessError } 13900042 - Unknown error
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
+   * @since 20
    */
+  flush(): Promise<void>;
+
   /**
-   * Write stream.
+   * Flush stream.
    *
-   * @param { ArrayBuffer | string } buffer - buffer.
-   * @param { WriteOptions } [options] - options.
-   * @returns { Promise<number> } Returns the number of file bytes written to file in promise mode.
+   * @param { AsyncCallback<void> } callback - Return the callback function.
    * @throws { BusinessError } 13900001 - Operation not permitted
    * @throws { BusinessError } 13900004 - Interrupted system call
    * @throws { BusinessError } 13900005 - I/O error
@@ -7863,18 +4241,13 @@ declare interface Stream {
    * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 11
+   * @since 20
    */
-  write(
-    buffer: ArrayBuffer | string,
-    options?: WriteOptions
-  ): Promise<number>;
+  flush(callback: AsyncCallback<void>): void;
 
   /**
-   * Write stream.
+   * Flush stream with sync interface.
    *
-   * @param { ArrayBuffer | string } buffer - buffer.
-   * @param { AsyncCallback<number> } callback - The callback is used to return the number of file bytes written to file.
    * @throws { BusinessError } 13900001 - Operation not permitted
    * @throws { BusinessError } 13900004 - Interrupted system call
    * @throws { BusinessError } 13900005 - I/O error
@@ -7888,16 +4261,16 @@ declare interface Stream {
    * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
+   * @since 20
    */
-  write(buffer: ArrayBuffer | string, callback: AsyncCallback<number>): void;
+  flushSync(): void;
 
   /**
    * Write stream.
    *
    * @param { ArrayBuffer | string } buffer - buffer.
-   * @param { object } [options] - options.
-   * @param { AsyncCallback<number> } callback - The callback is used to return the number of file bytes written to file.
+   * @param { WriteOptions } [options] - options.
+   * @returns { Promise<number> } Returns the number of file bytes written to file in promise mode.
    * @throws { BusinessError } 13900001 - Operation not permitted
    * @throws { BusinessError } 13900004 - Interrupted system call
    * @throws { BusinessError } 13900005 - I/O error
@@ -7911,13 +4284,17 @@ declare interface Stream {
    * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
+   * @since 20
    */
+  write(
+    buffer: ArrayBuffer | string,
+    options?: WriteOptions
+  ): Promise<number>;
+
   /**
    * Write stream.
    *
    * @param { ArrayBuffer | string } buffer - buffer.
-   * @param { WriteOptions } [options] - options.
    * @param { AsyncCallback<number> } callback - The callback is used to return the number of file bytes written to file.
    * @throws { BusinessError } 13900001 - Operation not permitted
    * @throws { BusinessError } 13900004 - Interrupted system call
@@ -7932,20 +4309,16 @@ declare interface Stream {
    * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 11
+   * @since 20
    */
-  write(
-    buffer: ArrayBuffer | string,
-    options: WriteOptions,
-    callback: AsyncCallback<number>
-  ): void;
+  write(buffer: ArrayBuffer | string, callback: AsyncCallback<number>): void;
 
   /**
-   * Write stream with sync interface.
+   * Write stream.
    *
    * @param { ArrayBuffer | string } buffer - buffer.
-   * @param { object } [options] - options.
-   * @returns { number } Returns the number of file bytes written to file.
+   * @param { WriteOptions } [options] - options.
+   * @param { AsyncCallback<number> } callback - The callback is used to return the number of file bytes written to file.
    * @throws { BusinessError } 13900001 - Operation not permitted
    * @throws { BusinessError } 13900004 - Interrupted system call
    * @throws { BusinessError } 13900005 - I/O error
@@ -7959,8 +4332,14 @@ declare interface Stream {
    * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
+   * @since 20
    */
+  write(
+    buffer: ArrayBuffer | string,
+    options: WriteOptions,
+    callback: AsyncCallback<number>
+  ): void;
+
   /**
    * Write stream with sync interface.
    *
@@ -7980,49 +4359,13 @@ declare interface Stream {
    * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 11
+   * @since 20
    */
   writeSync(
     buffer: ArrayBuffer | string,
     options?: WriteOptions
   ): number;
 
-  /**
-   * Read stream.
-   *
-   * @param { ArrayBuffer } buffer - buffer.
-   * @param { object } [options] - options.
-   * @returns { Promise<number> } Returns the number of file bytes read to buffer in promise mode.
-   * @throws { BusinessError } 13900004 - Interrupted system call
-   * @throws { BusinessError } 13900005 - I/O error
-   * @throws { BusinessError } 13900008 - Bad file descriptor
-   * @throws { BusinessError } 13900010 - Try again
-   * @throws { BusinessError } 13900013 - Bad address
-   * @throws { BusinessError } 13900019 - Is a directory
-   * @throws { BusinessError } 13900020 - Invalid argument
-   * @throws { BusinessError } 13900034 - Operation would block
-   * @throws { BusinessError } 13900042 - Unknown error
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
-   */
-  /**
-   * Read stream.
-   *
-   * @param { ArrayBuffer } buffer - buffer.
-   * @param { ReadOptions } [options] - options.
-   * @returns { Promise<number> } Returns the number of file bytes read to buffer in promise mode.
-   * @throws { BusinessError } 13900004 - Interrupted system call
-   * @throws { BusinessError } 13900005 - I/O error
-   * @throws { BusinessError } 13900008 - Bad file descriptor
-   * @throws { BusinessError } 13900010 - Try again
-   * @throws { BusinessError } 13900013 - Bad address
-   * @throws { BusinessError } 13900019 - Is a directory
-   * @throws { BusinessError } 13900020 - Invalid argument
-   * @throws { BusinessError } 13900034 - Operation would block
-   * @throws { BusinessError } 13900042 - Unknown error
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 11
-   */
   /**
    * Read stream.
    *
@@ -8040,7 +4383,7 @@ declare interface Stream {
    * @throws { BusinessError } 13900042 - Unknown error
    * @throws { BusinessError } 13900044 - Network is unreachable
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 12
+   * @since 20
    */
   read(
     buffer: ArrayBuffer,
@@ -8062,7 +4405,7 @@ declare interface Stream {
    * @throws { BusinessError } 13900034 - Operation would block
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
+   * @since 20
    */
   read(buffer: ArrayBuffer, callback: AsyncCallback<number>): void;
 
@@ -8070,7 +4413,7 @@ declare interface Stream {
    * Read stream.
    *
    * @param { ArrayBuffer } buffer - buffer.
-   * @param { object } [options] - options.
+   * @param { ReadOptions } [options] - options.
    * @param { AsyncCallback<number> } callback - The callback is used to return the number of file bytes read to buffer.
    * @throws { BusinessError } 13900004 - Interrupted system call
    * @throws { BusinessError } 13900005 - I/O error
@@ -8082,14 +4425,20 @@ declare interface Stream {
    * @throws { BusinessError } 13900034 - Operation would block
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
+   * @since 20
    */
+  read(
+    buffer: ArrayBuffer,
+    options: ReadOptions,
+    callback: AsyncCallback<number>
+  ): void;
+
   /**
-   * Read stream.
+   * Read stream with sync interface.
    *
    * @param { ArrayBuffer } buffer - buffer.
    * @param { ReadOptions } [options] - options.
-   * @param { AsyncCallback<number> } callback - The callback is used to return the number of file bytes read to buffer.
+   * @returns { number } Returns the number of file bytes read to file.
    * @throws { BusinessError } 13900004 - Interrupted system call
    * @throws { BusinessError } 13900005 - I/O error
    * @throws { BusinessError } 13900008 - Bad file descriptor
@@ -8099,98 +4448,227 @@ declare interface Stream {
    * @throws { BusinessError } 13900020 - Invalid argument
    * @throws { BusinessError } 13900034 - Operation would block
    * @throws { BusinessError } 13900042 - Unknown error
+   * @throws { BusinessError } 13900044 - Network is unreachable
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 11
+   * @since 20
    */
-  read(
+  readSync(
     buffer: ArrayBuffer,
-    options: ReadOptions,
-    callback: AsyncCallback<number>
-  ): void;
+    options?: ReadOptions
+  ): number;
+}
 
+/**
+ * Watcher object
+ *
+ * @interface Watcher
+ * @syscap SystemCapability.FileManagement.File.FileIO
+ * @since 20
+ */
+interface Watcher {
   /**
-   * Read stream with sync interface.
+   * Start watcher.
    *
-   * @param { ArrayBuffer } buffer - buffer.
-   * @param { object } [options] - options.
-   * @returns { number } Returns the number of file bytes read to file.
-   * @throws { BusinessError } 13900004 - Interrupted system call
-   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900002 - No such file or directory
    * @throws { BusinessError } 13900008 - Bad file descriptor
-   * @throws { BusinessError } 13900010 - Try again
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
    * @throws { BusinessError } 13900013 - Bad address
-   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900018 - Not a directory
    * @throws { BusinessError } 13900020 - Invalid argument
-   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900021 - File table overflow
+   * @throws { BusinessError } 13900022 - Too many open files
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900030 - File name too long
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
+   * @since 20
    */
+  start(): void;
+
   /**
-   * Read stream with sync interface.
+   * Stop watcher.
    *
-   * @param { ArrayBuffer } buffer - buffer.
-   * @param { ReadOptions } [options] - options.
-   * @returns { number } Returns the number of file bytes read to file.
-   * @throws { BusinessError } 13900004 - Interrupted system call
-   * @throws { BusinessError } 13900005 - I/O error
+   * @throws { BusinessError } 13900002 - No such file or directory
    * @throws { BusinessError } 13900008 - Bad file descriptor
-   * @throws { BusinessError } 13900010 - Try again
+   * @throws { BusinessError } 13900011 - Out of memory
+   * @throws { BusinessError } 13900012 - Permission denied
    * @throws { BusinessError } 13900013 - Bad address
-   * @throws { BusinessError } 13900019 - Is a directory
+   * @throws { BusinessError } 13900015 - File exists
+   * @throws { BusinessError } 13900018 - Not a directory
    * @throws { BusinessError } 13900020 - Invalid argument
-   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900021 - File table overflow
+   * @throws { BusinessError } 13900022 - Too many open files
+   * @throws { BusinessError } 13900025 - No space left on device
+   * @throws { BusinessError } 13900030 - File name too long
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 11
+   * @since 20
+   */
+  stop(): void;
+}
+
+/**
+ * Enumeration of different types of whence.
+ *
+ * @enum { number } whence type
+ * @syscap SystemCapability.FileManagement.File.FileIO
+ * @since 20
+ */
+enum WhenceType {
+  /**
+   * Starting position of the file offset.
+   *
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since 20
+   */
+  SEEK_SET = 0,
+
+  /**
+   * Current position of the file offset.
+   *
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since 20
+   */
+  SEEK_CUR = 1,
+
+  /**
+   * Ending position of the file offset.
+   *
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since 20
+   */
+  SEEK_END = 2,
+}
+
+/**
+ * Enumeration of different types of file location.
+ *
+ * @enum { number } location type
+ * @syscap SystemCapability.FileManagement.File.FileIO
+ * @since 20
+ */
+enum LocationType {
+  /**
+   * Local file.
+   *
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since 20
+   */
+  LOCAL = 1 << 0,
+
+  /**
+   * Cloud file.
+   *
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since 20
+   */
+  CLOUD = 1 << 1,
+}
+
+/**
+ * Enumeration of different types of access mode.
+ *
+ * @enum { number } access mode type
+ * @syscap SystemCapability.FileManagement.File.FileIO
+ * @atomicservice
+ * @since 20
+ */
+enum AccessModeType {
+  /**
+   * Check if the file exists.
+   *
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @atomicservice
+   * @since 20
+   */
+  EXIST = 0,
+
+  /**
+   * Check if the file has write permission.
+   *
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @atomicservice
+   * @since 20
+   */
+  WRITE = 2,
+
+  /**
+   * Check if the file has read permission.
+   *
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @atomicservice
+   * @since 20
+   */
+  READ = 4,
+
+  /**
+   * Check if the file has read and write permission.
+   *
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @atomicservice
+   * @since 20
+   */
+  READ_WRITE = 6,
+}
+
+/**
+ * Enumeration of different types of access flag.
+ *
+ * @enum { number } access flag type
+ * @syscap SystemCapability.FileManagement.File.FileIO
+ * @since 20
+ */
+enum AccessFlagType {
+  /**
+   * Check if the file is on the local.
+   *
+   * @syscap SystemCapability.FileManagement.File.FileIO
+   * @since 20
    */
+  LOCAL = 0,
+}
+
+/**
+ * ReaderIterator object
+ *
+ * @interface ReaderIterator
+ * @syscap SystemCapability.FileManagement.File.FileIO
+ * @since 20
+ */
+interface ReaderIterator {
   /**
-   * Read stream with sync interface.
+   * Get next result from the iterator.
    *
-   * @param { ArrayBuffer } buffer - buffer.
-   * @param { ReadOptions } [options] - options.
-   * @returns { number } Returns the number of file bytes read to file.
-   * @throws { BusinessError } 13900004 - Interrupted system call
+   * @returns { ReaderIteratorResult } Returns the result of reader iterator.
    * @throws { BusinessError } 13900005 - I/O error
-   * @throws { BusinessError } 13900008 - Bad file descriptor
-   * @throws { BusinessError } 13900010 - Try again
-   * @throws { BusinessError } 13900013 - Bad address
-   * @throws { BusinessError } 13900019 - Is a directory
-   * @throws { BusinessError } 13900020 - Invalid argument
-   * @throws { BusinessError } 13900034 - Operation would block
+   * @throws { BusinessError } 13900037 - No data available
    * @throws { BusinessError } 13900042 - Unknown error
-   * @throws { BusinessError } 13900044 - Network is unreachable
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 12
+   * @since 20
    */
-  readSync(
-    buffer: ArrayBuffer,
-    options?: ReadOptions
-  ): number;
+  next(): ReaderIteratorResult;
+}
+
 }
 
 /**
  * Implements watcher event listening.
  *
- * @interface WatchEventListener
+ * @typedef { function } WatchEventListener
+ * @param { WatchEvent } event - Event type for the callback to invoke.
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 10
+ * @since 20
  */
 export type WatchEventListener = (event: WatchEvent) => void;
-  /**
-   * Specifies the callback function to be invoked.
-   *
-   * @param { WatchEvent } event - Event type for the callback to invoke.
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 10
-   */
 
 /**
  * Event Listening.
  *
  * @interface WatchEvent
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 10
+ * @since 20
  */
 export interface WatchEvent {
   /**
@@ -8199,7 +4677,7 @@ export interface WatchEvent {
    * @type { string }
    * @readonly
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 10
+   * @since 20
    */
   readonly fileName: string;
 
@@ -8209,7 +4687,7 @@ export interface WatchEvent {
    * @type { number }
    * @readonly
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 10
+   * @since 20
    */
   readonly event: number;
 
@@ -8219,68 +4697,17 @@ export interface WatchEvent {
    * @type { number }
    * @readonly
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 10
+   * @since 20
    */
   readonly cookie: number;
 }
 
-/**
- * Watcher object
- *
- * @interface Watcher
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 10
- */
-interface Watcher {
-  /**
-   * Start watcher.
-   *
-   * @throws { BusinessError } 13900002 - No such file or directory
-   * @throws { BusinessError } 13900008 - Bad file descriptor
-   * @throws { BusinessError } 13900011 - Out of memory
-   * @throws { BusinessError } 13900012 - Permission denied
-   * @throws { BusinessError } 13900013 - Bad address
-   * @throws { BusinessError } 13900015 - File exists
-   * @throws { BusinessError } 13900018 - Not a directory
-   * @throws { BusinessError } 13900020 - Invalid argument
-   * @throws { BusinessError } 13900021 - File table overflow
-   * @throws { BusinessError } 13900022 - Too many open files
-   * @throws { BusinessError } 13900025 - No space left on device
-   * @throws { BusinessError } 13900030 - File name too long
-   * @throws { BusinessError } 13900042 - Unknown error
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 10
-   */
-  start(): void;
-
-  /**
-   * Stop watcher.
-   *
-   * @throws { BusinessError } 13900002 - No such file or directory
-   * @throws { BusinessError } 13900008 - Bad file descriptor
-   * @throws { BusinessError } 13900011 - Out of memory
-   * @throws { BusinessError } 13900012 - Permission denied
-   * @throws { BusinessError } 13900013 - Bad address
-   * @throws { BusinessError } 13900015 - File exists
-   * @throws { BusinessError } 13900018 - Not a directory
-   * @throws { BusinessError } 13900020 - Invalid argument
-   * @throws { BusinessError } 13900021 - File table overflow
-   * @throws { BusinessError } 13900022 - Too many open files
-   * @throws { BusinessError } 13900025 - No space left on device
-   * @throws { BusinessError } 13900030 - File name too long
-   * @throws { BusinessError } 13900042 - Unknown error
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 10
-   */
-  stop(): void;
-}
-
 /**
  * Reader Iterator Result
  *
  * @interface ReaderIteratorResult
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 11
+ * @since 20
  */
 export interface ReaderIteratorResult {
   /**
@@ -8288,7 +4715,7 @@ export interface ReaderIteratorResult {
    * 
    * @type { boolean }
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 11
+   * @since 20
    */
   done: boolean;
 
@@ -8297,39 +4724,11 @@ export interface ReaderIteratorResult {
    * 
    * @type { string }
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 11
+   * @since 20
    */
   value: string;
 }
 
-/**
- * ReaderIterator object
- *
- * @interface ReaderIterator
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 11
- */
-declare interface ReaderIterator {
-  /**
-   * Get next result from the iterator.
-   *
-   * @returns { ReaderIteratorResult } Returns the result of reader iterator.
-   * @throws { BusinessError } 13900005 - I/O error
-   * @throws { BusinessError } 13900037 - No data available
-   * @throws { BusinessError } 13900042 - Unknown error
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 11
-   */
-  next(): ReaderIteratorResult;
-}
-
-/**
- * File filter type
- *
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @crossplatform
- * @since 10
- */
 /**
  * File filter type
  *
@@ -8337,16 +4736,10 @@ declare interface ReaderIterator {
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @crossplatform
  * @atomicservice
- * @since 11
+ * @since 20
  */
 export interface Filter {
-  /**
-   * The suffix of the file.
-   * 
-   * @type { ?Array<string> }
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 10
-   */
+
   /**
    * The suffix of the file.
    * 
@@ -8354,16 +4747,10 @@ export interface Filter {
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
    * @atomicservice
-   * @since 11
+   * @since 20
    */
   suffix?: Array<string>;
-  /**
-   * The display name of the file.
-   * 
-   * @type { ?Array<string> }
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 10
-   */
+
   /**
    * The display name of the file.
    * 
@@ -8371,16 +4758,10 @@ export interface Filter {
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
    * @atomicservice
-   * @since 11
+   * @since 20
    */
   displayName?: Array<string>;
-  /**
-   * The mimetype of the file.
-   * 
-   * @type { ?Array<string> }
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 10
-   */
+
   /**
    * The mimetype of the file.
    * 
@@ -8388,16 +4769,10 @@ export interface Filter {
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
    * @atomicservice
-   * @since 11
+   * @since 20
    */
   mimeType?: Array<string>;
-  /**
-   * The exceeding size of the file.
-   * 
-   * @type { ?number }
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 10
-   */
+
   /**
    * The exceeding size of the file.
    * 
@@ -8405,16 +4780,10 @@ export interface Filter {
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
    * @atomicservice
-   * @since 11
+   * @since 20
    */
   fileSizeOver?: number;
-  /**
-   * The last modification time of the file.
-   * 
-   * @type { ?number }
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 10
-   */
+
   /**
    * The last modification time of the file.
    * 
@@ -8422,16 +4791,10 @@ export interface Filter {
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
    * @atomicservice
-   * @since 11
+   * @since 20
    */
   lastModifiedAfter?: number;
-  /**
-   * Whether to exclude media files.
-   * 
-   * @type { ?boolean }
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 10
-   */
+
   /**
    * Whether to exclude media files.
    * 
@@ -8439,54 +4802,35 @@ export interface Filter {
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @crossplatform
    * @atomicservice
-   * @since 11
+   * @since 20
    */
   excludeMedia?: boolean;
 }
 
-/**
- * Conflict Files type
- *
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 10
- */
 /**
  * Conflict Files type
  *
  * @interface ConflictFiles
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 11
+ * @since 20
  */
 export interface ConflictFiles {
+
   /**
    * The path of the source file.
    * 
    * @type { string }
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 10
-   */
-  /**
-   * The path of the source file.
-   * 
-   * @type { string }
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 11
+   * @since 20
    */
   srcFile: string;
 
-  /**
-   * The path of the source file.
-   * 
-   * @type { string }
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 10
-   */
   /**
    * The path of the destination file.
    * 
    * @type { string }
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 11
+   * @since 20
    */
   destFile: string;
 }
@@ -8496,7 +4840,7 @@ export interface ConflictFiles {
  *
  * @interface Options
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 11
+ * @since 20
  */
 export interface Options {
   /**
@@ -8504,7 +4848,7 @@ export interface Options {
    * 
    * @type { ?string }
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 11
+   * @since 20
    */
   encoding?: string;
 }
@@ -8515,7 +4859,7 @@ export interface Options {
  * @interface ReadOptions
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @atomicservice
- * @since 11
+ * @since 20
  */
 export interface ReadOptions {
   /**
@@ -8524,7 +4868,7 @@ export interface ReadOptions {
    * @type { ?number }
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @atomicservice
-   * @since 11
+   * @since 20
    */
   offset?: number;
   /**
@@ -8533,7 +4877,7 @@ export interface ReadOptions {
    * @type { ?number }
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @atomicservice
-   * @since 11
+   * @since 20
    */
   length?: number;
 }
@@ -8541,11 +4885,11 @@ export interface ReadOptions {
 /**
  * ReadTextOptions type
  *
- * @interface ReadTextOptions
  * @extends ReadOptions
+ * @interface ReadTextOptions
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @atomicservice
- * @since 11
+ * @since 20
  */
 export interface ReadTextOptions extends ReadOptions {
   /**
@@ -8554,7 +4898,7 @@ export interface ReadTextOptions extends ReadOptions {
    * @type { ?string }
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @atomicservice
-   * @since 11
+   * @since 20
    */
   encoding?: string;
 }
@@ -8562,11 +4906,11 @@ export interface ReadTextOptions extends ReadOptions {
 /**
  * WriteOptions type
  *
- * @interface WriteOptions
  * @extends Options
+ * @interface WriteOptions
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @atomicservice
- * @since 11
+ * @since 20
  */
 export interface WriteOptions extends Options {
   /**
@@ -8575,7 +4919,7 @@ export interface WriteOptions extends Options {
    * @type { ?number }
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @atomicservice
-   * @since 11
+   * @since 20
    */
   offset?: number;
   /**
@@ -8584,7 +4928,7 @@ export interface WriteOptions extends Options {
    * @type { ?number }
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @atomicservice
-   * @since 11
+   * @since 20
    */
   length?: number;
 }
@@ -8595,7 +4939,7 @@ export interface WriteOptions extends Options {
  * @interface ListFileOptions
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @atomicservice
- * @since 11
+ * @since 20
  */
 export interface ListFileOptions {
   /**
@@ -8604,7 +4948,7 @@ export interface ListFileOptions {
    * @type { ?boolean }
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @atomicservice
-   * @since 11
+   * @since 20
    */
   recursion?: boolean;
 
@@ -8614,7 +4958,7 @@ export interface ListFileOptions {
    * @type { ?number }
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @atomicservice
-   * @since 11
+   * @since 20
    */
   listNum?: number;
 
@@ -8624,7 +4968,7 @@ export interface ListFileOptions {
    * @type { ?Filter }
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @atomicservice
-   * @since 11
+   * @since 20
    */
   filter?: Filter;
 }
@@ -8634,7 +4978,7 @@ export interface ListFileOptions {
  *
  * @interface RandomAccessFileOptions
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 12
+ * @since 20
  */
 export interface RandomAccessFileOptions {
   /**
@@ -8642,7 +4986,7 @@ export interface RandomAccessFileOptions {
    * 
    * @type { ?number }
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 12
+   * @since 20
    */
   start?: number;
 
@@ -8651,7 +4995,7 @@ export interface RandomAccessFileOptions {
    * 
    * @type { ?number }
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 12
+   * @since 20
    */
   end?: number;
 }
@@ -8661,7 +5005,7 @@ export interface RandomAccessFileOptions {
  *
  * @interface ReadStreamOptions
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 12 
+ * @since 20 
  */
 export interface ReadStreamOptions {
   /**
@@ -8669,7 +5013,7 @@ export interface ReadStreamOptions {
    * 
    * @type { ?number }
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 12
+   * @since 20
    */
   start?: number;
 
@@ -8678,7 +5022,7 @@ export interface ReadStreamOptions {
    * 
    * @type { ?number }
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 12
+   * @since 20
    */
   end?: number;
 }
@@ -8688,7 +5032,7 @@ export interface ReadStreamOptions {
  *
  * @interface WriteStreamOptions
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 12 
+ * @since 20 
  */
 export interface WriteStreamOptions {
   /**
@@ -8696,7 +5040,7 @@ export interface WriteStreamOptions {
    * 
    * @type { ?number }
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 12
+   * @since 20
    */
   mode?: number;
   /**
@@ -8704,7 +5048,7 @@ export interface WriteStreamOptions {
    * 
    * @type { ?number }
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 12
+   * @since 20
    */
   start?: number;
 }
@@ -8714,7 +5058,7 @@ export interface WriteStreamOptions {
  *
  * @typedef DfsListeners
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 12
+ * @since 20
  */
 export interface DfsListeners {
   /**
@@ -8723,128 +5067,34 @@ export interface DfsListeners {
    * @param { string } networkId - The networkId of device.
    * @param { number } status - The status code of Distributed File System.
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 12
+   * @since 20
    */
   onStatus(networkId: string, status: number): void;
 }
 
 /**
- * Enumeration of different types of whence.
- *
- * @enum { number } whence type
+ * Task signal.
+ * @typedef { fileIo.TaskSignal }
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 11
+ * @since 20
  */
-declare enum WhenceType {
-  /**
-   * Starting position of the file offset.
-   *
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 11
-   */
-  SEEK_SET = 0,
-
-  /**
-   * Current position of the file offset.
-   *
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 11
-   */
-  SEEK_CUR = 1,
-
-  /**
-   * Ending position of the file offset.
-   *
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 11
-   */
-  SEEK_END = 2,
-}
+type TaskSignal = fileIo.TaskSignal;
 
 /**
- * Enumeration of different types of file location.
- *
- * @enum { number } location type
+ * Watcher object
+ * @typedef { fileIo.Watcher }
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 11
+ * @since 20
  */
-declare enum LocationType {
-  /**
-   * Local file.
-   *
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 11
-   */
-  LOCAL = 1 << 0,
-
-  /**
-   * Cloud file.
-   *
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 11
-   */
-  CLOUD = 1 << 1,
-}
+type Watcher = fileIo.Watcher;
 
 /**
- * Enumeration of different types of access mode.
- *
- * @enum { number } access mode type
+ * Watcher object
+ * @typedef { fileIo.AtomicFile }
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @atomicservice
- * @since 12
+ * @since 20
  */
-declare enum AccessModeType {
-  /**
-   * Check if the file exists.
-   *
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @atomicservice
-   * @since 12
-   */
-  EXIST = 0,
-
-  /**
-   * Check if the file has write permission.
-   *
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @atomicservice
-   * @since 12
-   */
-  WRITE = 2,
-
-  /**
-   * Check if the file has read permission.
-   *
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @atomicservice
-   * @since 12
-   */
-  READ = 4,
-
-  /**
-   * Check if the file has read and write permission.
-   *
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @atomicservice
-   * @since 12
-   */
-  READ_WRITE = 6,
-}
+type AtomicFile = fileIo.AtomicFile;
 
-/**
- * Enumeration of different types of access flag.
- *
- * @enum { number } access flag type
- * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 12
- */
-declare enum AccessFlagType {
-  /**
-   * Check if the file is on the local.
-   *
-   * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 12
-   */
-  LOCAL = 0,
-}
+export default fileIo;
+export {TaskSignal, Watcher, AtomicFile}
\ No newline at end of file
diff --git a/api/@ohos.file.hash.d.ts b/api/@ohos.file.hash.d.ts
index bd9f4e28b30543ef302d3e9b8c81bb1271c3e8f0..60bf4c044c2beb6e013f44376e4dbc91a62da437 100644
--- a/api/@ohos.file.hash.d.ts
+++ b/api/@ohos.file.hash.d.ts
@@ -34,7 +34,8 @@ import stream from './@ohos.util.stream';
  * @namespace hash
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @atomicservice
- * @since 11
+ * @since arkts {'1.1':'11', '1.2':'20'}
+ * @arkts 1.1&1.2
  */
 declare namespace hash {
   /**
@@ -58,7 +59,8 @@ declare namespace hash {
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @atomicservice
-   * @since 11
+   * @since arkts {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   function hash(path: string, algorithm: string): Promise<string>;
 
@@ -83,7 +85,8 @@ declare namespace hash {
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
    * @atomicservice
-   * @since 11
+   * @since arkts {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   function hash(path: string, algorithm: string, callback: AsyncCallback<string>): void;
 
@@ -92,7 +95,8 @@ declare namespace hash {
    * 
    * @extends stream.Transform
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 12
+   * @since arkts {'1.1':'12', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   class HashStream extends stream.Transform {
     /**
@@ -102,7 +106,8 @@ declare namespace hash {
      * @throws { BusinessError } 401 - Parameter error
      * @throws { BusinessError } 13900042 - Unknown error
      * @syscap SystemCapability.FileManagement.File.FileIO
-     * @since 12
+     * @since arkts {'1.1':'12', '1.2':'20'}
+     * @arkts 1.1&1.2
      */
     digest(): string;
 
@@ -113,7 +118,8 @@ declare namespace hash {
      * @throws { BusinessError } 401 - Parameter error
      * @throws { BusinessError } 13900042 - Unknown error
      * @syscap SystemCapability.FileManagement.File.FileIO
-     * @since 12
+     * @since arkts {'1.1':'12', '1.2':'20'}
+     * @arkts 1.1&1.2
      */
     update(data: ArrayBuffer): void;
   }
diff --git a/api/@ohos.file.securityLabel.d.ts b/api/@ohos.file.securityLabel.d.ts
index 6167dc92ace646abc9354557a9cc0b9780f5c409..1050c3b3240f692cb49c0268eb2f8613400aaf65 100644
--- a/api/@ohos.file.securityLabel.d.ts
+++ b/api/@ohos.file.securityLabel.d.ts
@@ -25,7 +25,8 @@ import type { AsyncCallback } from './@ohos.base';
  *
  * @namespace securityLabel
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
+ * @since arkts {'1.1':'9', '1.2':'20'}
+ * @arkts 1.1&1.2
  */
 declare namespace securityLabel {
   /**
@@ -33,7 +34,8 @@ declare namespace securityLabel {
    *
    * @typedef { 's0' | 's1' | 's2' | 's3' | 's4' }
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
+   * @since arkts {'1.1':'9', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   type DataLevel = 's0' | 's1' | 's2' | 's3' | 's4';
 
@@ -52,7 +54,8 @@ declare namespace securityLabel {
    * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
+   * @since arkts {'1.1':'9', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   function setSecurityLabel(path: string, type: DataLevel): Promise<void>;
 
@@ -71,7 +74,8 @@ declare namespace securityLabel {
    * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
+   * @since arkts {'1.1':'9', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   function setSecurityLabel(path: string, type: DataLevel, callback: AsyncCallback<void>): void;
 
@@ -89,7 +93,8 @@ declare namespace securityLabel {
    * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
+   * @since arkts {'1.1':'9', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   function setSecurityLabelSync(path: string, type: DataLevel): void;
 
@@ -107,7 +112,8 @@ declare namespace securityLabel {
    * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
+   * @since arkts {'1.1':'9', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   function getSecurityLabel(path: string): Promise<string>;
 
@@ -125,7 +131,8 @@ declare namespace securityLabel {
    * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
+   * @since arkts {'1.1':'9', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   function getSecurityLabel(path: string, callback: AsyncCallback<string>): void;
 
@@ -143,7 +150,8 @@ declare namespace securityLabel {
    * @throws { BusinessError } 13900041 - Quota exceeded
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
+   * @since arkts {'1.1':'9', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   function getSecurityLabelSync(path: string): string;
 }
diff --git a/api/@ohos.file.statvfs.d.ts b/api/@ohos.file.statvfs.d.ts
index b5f92e338e2b4f9babb3ef3203a2bdd913175fa6..9dd4b53226e8f0100d6688e4659aa44f62ccc81c 100644
--- a/api/@ohos.file.statvfs.d.ts
+++ b/api/@ohos.file.statvfs.d.ts
@@ -25,7 +25,8 @@ import type { AsyncCallback } from './@ohos.base';
  *
  * @namespace statfs
  * @syscap SystemCapability.FileManagement.File.FileIO
- * @since 9
+ * @since arkts {'1.1':'9', '1.2':'20'}
+ * @arkts 1.1&1.2
  */
 declare namespace statfs {
   /**
@@ -47,7 +48,8 @@ declare namespace statfs {
    * @throws { BusinessError } 13900038 - Value too large for defined data type
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
+   * @since arkts {'1.1':'9', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   function getFreeSize(path: string): Promise<number>;
 
@@ -70,7 +72,8 @@ declare namespace statfs {
    * @throws { BusinessError } 13900038 - Value too large for defined data type
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
+   * @since arkts {'1.1':'9', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   function getFreeSize(path: string, callback: AsyncCallback<number>): void;
 
@@ -93,7 +96,8 @@ declare namespace statfs {
    * @throws { BusinessError } 13900038 - Value too large for defined data type
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 10
+   * @since arkts {'1.1':'10', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   function getFreeSizeSync(path: string): number;
 
@@ -116,7 +120,8 @@ declare namespace statfs {
    * @throws { BusinessError } 13900038 - Value too large for defined data type
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
+   * @since arkts {'1.1':'9', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   function getTotalSize(path: string): Promise<number>;
 
@@ -139,7 +144,8 @@ declare namespace statfs {
    * @throws { BusinessError } 13900038 - Value too large for defined data type
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 9
+   * @since arkts {'1.1':'9', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   function getTotalSize(path: string, callback: AsyncCallback<number>): void;
 
@@ -162,7 +168,8 @@ declare namespace statfs {
    * @throws { BusinessError } 13900038 - Value too large for defined data type
    * @throws { BusinessError } 13900042 - Unknown error
    * @syscap SystemCapability.FileManagement.File.FileIO
-   * @since 10
+   * @since arkts {'1.1':'10', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   function getTotalSizeSync(path: string): number;
 }