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+/*
+* Copyright (c) 2022-2024 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
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+/**
+ * @file
+ * @kit AVSessionKit
+ */
+
+// import  { ErrorCallback, AsyncCallback, Callback } from 'base';
+// import { WantAgent } from './@ohos.wantAgent';
+// import { KeyEvent } from './@ohos.multimodalInput.keyEvent';
+// import { ElementName } from './ElementName';
+// import {image} from './@ohos.multimedia.image';
+// import {audio} from './@ohos.multimedia.audio';
+// import  {media} from './@ohos.multimedia.media';
+// import  Context from './BaseContext';
+
+/**
+ * @namespace avSession
+ * @syscap SystemCapability.Multimedia.AVSession.Core
+ * @since 9
+ */
+/**
+ * @namespace avSession
+ * @syscap SystemCapability.Multimedia.AVSession.Core
+ * @atomicservice
+ * @since 12
+ */
+
+declare namespace avSession {
+  /**
+   * Create an AVSession instance. An ability can only create one AVSession
+   * @param { Context } context - The context of application
+   * @param { string } tag - A user-defined name for this session
+   * @param { AVSessionType } type - The type of session {@link AVSessionType}
+   * @param { AsyncCallback<AVSession> } callback - async callback for AVSession.
+   * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+   * 2.Parameter verification failed.
+   * @throws { BusinessError } 6600101 - Session service exception.
+   * @syscap SystemCapability.Multimedia.AVSession.Core
+   * @since 10
+   */
+  function createAVSession(context: Context, tag: string, type: AVSessionType, callback: AsyncCallback<AVSession>): void;
+
+  /**
+   * Create an AVSession instance. An ability can only create one AVSession
+   * @param { Context } context - The context of application
+   * @param { string } tag - A user-defined name for this session
+   * @param { AVSessionType } type - The type of session {@link AVSessionType}
+   * @returns { Promise<AVSession> } Promise for AVSession
+   * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+   * 2.Parameter verification failed.
+   * @throws { BusinessError } 6600101 - Session service exception.
+   * @syscap SystemCapability.Multimedia.AVSession.Core
+   * @since 10
+   */
+  /**
+   * Create an AVSession instance. An ability can only create one AVSession
+   * @param { Context } context - The context of application
+   * @param { string } tag - A user-defined name for this session
+   * @param { AVSessionType } type - The type of session {@link AVSessionType}
+   * @returns { Promise<AVSession> } Promise for AVSession
+   * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+   * 2.Parameter verification failed.
+   * @throws { BusinessError } 6600101 - Session service exception.
+   * @syscap SystemCapability.Multimedia.AVSession.Core
+   * @atomicservice
+   * @since 12
+   */
+  function createAVSession(context: Context, tag: string, type: AVSessionType): Promise<AVSession>;
+
+  /**
+   * Get all avsession descriptors of the system
+   * @permission ohos.permission.MANAGE_MEDIA_RESOURCES
+   * @param { AsyncCallback<Array<Readonly<AVSessionDescriptor>>> } callback - async callback for an array of AVSessionDescriptors.
+   * @throws { BusinessError } 201 - permission denied
+   * @throws { BusinessError } 202 - Not System App.
+   * @throws { BusinessError } 6600101 - Session service exception.
+   * @syscap SystemCapability.Multimedia.AVSession.Manager
+   * @systemapi
+   * @since 9
+   */
+  function getAllSessionDescriptors(callback: AsyncCallback<Array<Readonly<AVSessionDescriptor>>>): void;
+  
+  /**
+   * Get all avsession descriptors of the system
+   * @permission ohos.permission.MANAGE_MEDIA_RESOURCES
+   * @returns { Promise<Array<Readonly<AVSessionDescriptor>>> } Promise for an array of AVSessionDescriptors
+   * @throws { BusinessError } 201 - permission denied
+   * @throws { BusinessError } 202 - Not System App.
+   * @throws { BusinessError } 6600101 - Session service exception.
+   * @syscap SystemCapability.Multimedia.AVSession.Manager
+   * @systemapi
+   * @since 9
+   */
+  function getAllSessionDescriptors(): Promise<Array<Readonly<AVSessionDescriptor>>>;
+
+  /**
+   * Get history avsession records. These sessions have been destroyed.
+   * @permission ohos.permission.MANAGE_MEDIA_RESOURCES
+   * @param { number } maxSize - Specifies the maximum size of the returned value array.
+   * @param { AsyncCallback<Array<Readonly<AVSessionDescriptor>>> } callback - async callback for an array of AVSessionDescriptors.
+   * If provided '0' or not provided, the maximum value is determined by the system.
+   * @throws { BusinessError } 201 - permission denied
+   * @throws { BusinessError } 202 - Not System App
+   * @throws { BusinessError } 401 - parameter check failed. Possible causes: 1.Mandatory parameters are left unspecified.
+   * 2.Incorrect parameter types.
+   * @throws { BusinessError } 6600101 - Session service exception.
+   * @syscap SystemCapability.Multimedia.AVSession.Manager
+   * @systemapi Hide this for inner system use
+   * @since 10
+   */
+  function getHistoricalSessionDescriptors(maxSize: number, callback: AsyncCallback<Array<Readonly<AVSessionDescriptor>>>): void;
+
+  /**
+   * Get history avsession records. These sessions have been destroyed.
+   * @permission ohos.permission.MANAGE_MEDIA_RESOURCES
+   * @param { number } maxSize - Specifies the maximum size of the returned value array.
+   * If provided '0' or not provided, the maximum value is determined by the system.
+   * @returns { Promise<Array<Readonly<AVSessionDescriptor>>> } Promise for an array of AVSessionDescriptors
+   * @throws { BusinessError } 201 - permission denied
+   * @throws { BusinessError } 202 - Not System App
+   * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+   * 2.Incorrect parameter types.
+   * @throws { BusinessError } 6600101 - Session service exception.
+   * @syscap SystemCapability.Multimedia.AVSession.Manager
+   * @systemapi Hide this for inner system use
+   * @since 10
+   */
+  function getHistoricalSessionDescriptors(maxSize?: number): Promise<Array<Readonly<AVSessionDescriptor>>>;
+
+  /**
+   * Get history play list information records.
+   * @permission ohos.permission.MANAGE_MEDIA_RESOURCES
+   * @param { number } maxSize - Specifies the maximum size of the returned value array.
+   * @param { number } maxAppSize - Specifies the maximum app size of the returned value array.
+   * @param { AsyncCallback<Array<Readonly<AVQueueInfo>>> } callback - async callback for an array of AVQueueInfo.
+   * If provided '0' or not provided, the maximum value is determined by the system.
+   * @throws { BusinessError } 201 - permission denied
+   * @throws { BusinessError } 202 - Not System App.
+   * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+   * 2.Incorrect parameter types.
+   * @throws { BusinessError } 6600101 - Session service exception.
+   * @syscap SystemCapability.Multimedia.AVSession.Manager
+   * @systemapi Hide this for inner system use
+   * @since 11
+   */
+  function getHistoricalAVQueueInfos(maxSize: number, maxAppSize: number, callback: AsyncCallback<Array<Readonly<AVQueueInfo>>>): void;
+
+  /**
+   * Get history play list information records.
+   * @permission ohos.permission.MANAGE_MEDIA_RESOURCES
+   * @param { number } maxSize - Specifies the maximum size of the returned value array.
+   * @param { number } maxAppSize - Specifies the maximum app size of the returned value array.
+   * @returns { Promise<Array<Readonly<AVQueueInfo>>> } Promise for an array of AVQueueInfo
+   * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+   * 2.Incorrect parameter types.
+   * @throws { BusinessError } 6600101 - Session service exception.
+   * @syscap SystemCapability.Multimedia.AVSession.Manager
+   * @systemapi Hide this for inner system use
+   * @since 11
+   */
+  function getHistoricalAVQueueInfos(maxSize: number, maxAppSize: number): Promise<Array<Readonly<AVQueueInfo>>>;
+
+  /**
+   * Create an avsession controller
+   * @permission ohos.permission.MANAGE_MEDIA_RESOURCES
+   * @param { string } sessionId - Specifies the sessionId to create the controller.
+   * @param { AsyncCallback<AVSessionController> } callback - async callback for AVSessionController.
+   * If provided 'default', the system will create a default controller, Used to control the system default session
+   * @throws { BusinessError } 201 - permission denied
+   * @throws { BusinessError } 202 - Not System App.
+   * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+   * 2.Parameter verification failed.
+   * @throws { BusinessError } 6600101 - Session service exception.
+   * @throws { BusinessError } 6600102 - The session does not exist.
+   * @syscap SystemCapability.Multimedia.AVSession.Manager
+   * @systemapi
+   * @since 9
+   */
+  function createController(sessionId: string, callback: AsyncCallback<AVSessionController>): void;
+
+  /**
+   * Create an avsession controller
+   * @permission ohos.permission.MANAGE_MEDIA_RESOURCES
+   * @param { string } sessionId - Specifies the sessionId to create the controller.
+   * If provided 'default', the system will create a default controller, Used to control the system default session
+   * @returns { Promise<AVSessionController> } Promise for AVSessionController
+   * @throws { BusinessError } 201 - permission denied
+   * @throws { BusinessError } 202 - Not System App.
+   * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+   * 2.Parameter verification failed.
+   * @throws { BusinessError } 6600101 - Session service exception.
+   * @throws { BusinessError } 6600102 - The session does not exist.
+   * @syscap SystemCapability.Multimedia.AVSession.Manager
+   * @systemapi
+   * @since 9
+   */
+  function createController(sessionId: string): Promise<AVSessionController>;
+
+  /**
+   * Cast Audio to the remote devices or cast back local device
+   * @permission ohos.permission.MANAGE_MEDIA_RESOURCES
+   * @param { SessionToken | 'all' } session - Specifies the sessionId which to send to remote.
+   * @param { Array<audio.AudioDeviceDescriptor> } audioDevices - Specifies the audio devices to cast.
+   * @param { AsyncCallback<void> } callback - The asyncCallback triggered when the command is executed successfully
+   * 'all' means cast all the media audio of this device to remote.
+   * @throws { BusinessError } 201 - permission denied
+   * @throws { BusinessError } 202 - Not System App.
+   * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+   * 2.Parameter verification failed.
+   * @throws { BusinessError } 6600101 - Session service exception.
+   * @throws { BusinessError } 6600102 - The session does not exist.
+   * @throws { BusinessError } 6600104 - The remote session connection failed.
+   * @syscap SystemCapability.Multimedia.AVSession.Manager
+   * @systemapi
+   * @since 9
+   */
+  function castAudio(session: SessionToken | 'all', audioDevices: Array<audio.AudioDeviceDescriptor>, callback: AsyncCallback<void>): void;
+
+  /**
+   * Cast Audio to the remote devices or cast back local device
+   * @permission ohos.permission.MANAGE_MEDIA_RESOURCES
+   * @param { SessionToken | 'all' } session - Specifies the sessionId which to send to remote.
+   * @param { Array<audio.AudioDeviceDescriptor> } audioDevices - Specifies the audio devices to cast.
+   * @returns { Promise<void> } void promise when executed successfully
+   * 'all' means cast all the media audio of this device to remote.
+   * @throws { BusinessError } 201 - permission denied
+   * @throws { BusinessError } 202 - Not System App.
+   * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+   * 2.Parameter verification failed.
+   * @throws { BusinessError } 6600101 - Session service exception.
+   * @throws { BusinessError } 6600102 - The session does not exist.
+   * @throws { BusinessError } 6600104 - The remote session  connection failed.
+   * @syscap SystemCapability.Multimedia.AVSession.Manager
+   * @systemapi
+   * @since 9
+   */
+  function castAudio(session: SessionToken | 'all', audioDevices: Array<audio.AudioDeviceDescriptor>): Promise<void>;
+
+  /**
+   * Start an application for media playback.
+   * @permission ohos.permission.MANAGE_MEDIA_RESOURCES
+   * @param { string } bundleName - Specifies the bundleName which to be started.
+   * @param { string } assetId - Specifies the assetId to be started.
+   * @returns { Promise<void> } void promise when executed successfully
+   * @throws { BusinessError } 201 - permission denied
+   * @throws { BusinessError } 202 - Not System App. Interface caller is not a system app.
+   * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+   * 2.Incorrect parameter types. 3.Parameter verification failed.
+   * @throws { BusinessError } 6600101 - Session service exception.
+   * @syscap SystemCapability.Multimedia.AVSession.Manager
+   * @systemapi
+   * @since 11
+   */
+  function startAVPlayback(bundleName: string, assetId: string): Promise<void>;
+
+  /**
+   * Session token. Used to judge the legitimacy of the session.
+   * @typedef SessionToken
+   * @syscap SystemCapability.Multimedia.AVSession.Manager
+   * @systemapi
+   * @since 9
+   */
+  interface SessionToken {
+    /**
+     * The unique session id of the avsession object
+     * @permission ohos.permission.MANAGE_MEDIA_RESOURCES
+     * @type { string }
+     * @syscap SystemCapability.Multimedia.AVSession.Manager
+     * @systemapi
+     * @since 9
+     */
+    sessionId: string;
+
+    /**
+     * Process id of session
+     * @permission ohos.permission.MANAGE_MEDIA_RESOURCES
+     * @type { ?number }
+     * @syscap SystemCapability.Multimedia.AVSession.Manager
+     * @systemapi
+     * @since 9
+     */
+    pid?: number;
+
+    /**
+     * User id
+     * @permission ohos.permission.MANAGE_MEDIA_RESOURCES
+     * @type { ?number }
+     * @syscap SystemCapability.Multimedia.AVSession.Manager
+     * @systemapi
+     * @since 9
+     */
+    uid?: number;
+  }
+
+  /**
+   * Register session create callback
+   * @param { 'sessionCreate' } type - Registration Type, 'sessionCreate'
+   * @param { function } callback - Used to handle ('sessionCreate' command)
+   * @throws { BusinessError } 202 - Not System App.
+   * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+   * 2.Incorrect parameter types.
+   * @throws { BusinessError } 6600101 - Session service exception.
+   * @syscap SystemCapability.Multimedia.AVSession.Manager
+   * @systemapi
+   * @since 9
+   */
+  function on(type: 'sessionCreate', callback: (session: AVSessionDescriptor) => void): void;
+
+  /**
+   * Register session destroy callback
+   * @param { 'sessionDestroy' } type - Registration Type, 'sessionDestroy'
+   * @param { function } callback - Used to handle ('sessionDestroy' command)
+   * @throws { BusinessError } 202 - Not System App.
+   * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+   * 2.Incorrect parameter types.
+   * @throws { BusinessError } 6600101 - Session service exception.
+   * @syscap SystemCapability.Multimedia.AVSession.Manager
+   * @systemapi
+   * @since 9
+   */
+  function on(type: 'sessionDestroy', callback: (session: AVSessionDescriptor) => void): void;
+
+  /**
+   * Register top session changed callback
+   * @param { 'topSessionChange' } type - Registration Type, top priority session change, 'topSessionChange'
+   * @param { function } callback - Used to handle ('topSessionChange' command)
+   * @throws { BusinessError } 202 - Not System App.
+   * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+   * 2.Incorrect parameter types.
+   * @throws { BusinessError } 6600101 - Session service exception.
+   * @syscap SystemCapability.Multimedia.AVSession.Manager
+   * @systemapi
+   * @since 9
+   */
+  function on(type: 'topSessionChange', callback: (session: AVSessionDescriptor) => void): void;
+
+  /**
+   * Unregister session create callback
+   * @param { 'sessionCreate' } type - Registration Type, session creation, 'sessionCreate'
+   * @param { function } callback - Used to unregister listener for ('sessionCreate') command
+   * @throws { BusinessError } 202 - Not System App.
+   * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+   * 2.Incorrect parameter types.
+   * @throws { BusinessError } 6600101 - Session service exception.
+   * @syscap SystemCapability.Multimedia.AVSession.Manager
+   * @systemapi
+   * @since 9
+   */
+  function off(type: 'sessionCreate', callback?: (session: AVSessionDescriptor) => void): void;
+
+  /**
+   * Unregister session destroy callback
+   * @param { 'sessionDestroy' } type - Registration Type, session deletion, 'sessionDestroy'
+   * @param { function } callback - Used to unregister listener for ('sessionDestroy') command
+   * @throws { BusinessError } 202 - Not System App.
+   * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+   * 2.Incorrect parameter types.
+   * @throws { BusinessError } 6600101 - Session service exception.
+   * @syscap SystemCapability.Multimedia.AVSession.Manager
+   * @systemapi
+   * @since 9
+   */
+  function off(type: 'sessionDestroy', callback?: (session: AVSessionDescriptor) => void): void;
+
+  /**
+   * Unregister top session changed callback
+   * @param { 'topSessionChange' } type - Registration Type, top priority session change, 'topSessionChange'
+   * @param { function } callback - Used to unregister listener for ('topSessionChange') command
+   * @throws { BusinessError } 202 - Not System App.
+   * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+   * 2.Incorrect parameter types.
+   * @throws { BusinessError } 6600101 - Session service exception.
+   * @syscap SystemCapability.Multimedia.AVSession.Manager
+   * @systemapi
+   * @since 9
+   */
+  function off(type: 'topSessionChange', callback?: (session: AVSessionDescriptor) => void): void;
+
+  /**
+   * Register Session service death callback, notifying the application to clean up resources.
+   * @param { 'sessionServiceDie' } type - Registration Type, 'sessionServiceDie'
+   * @param { function } callback - Used to handle ('sessionServiceDie') command.
+   * @throws { BusinessError } 202 - Not System App.
+   * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+   * 2.Incorrect parameter types.
+   * @throws { BusinessError } 6600101 - Session service exception.
+   * @syscap SystemCapability.Multimedia.AVSession.Core
+   * @systemapi
+   * @since 9
+   */
+  function on(type: 'sessionServiceDie', callback: () => void): void;
+
+  /**
+   * Unregister Session service death callback, notifying the application to clean up resources.
+   * @param { 'sessionServiceDie' } type - Registration Type, 'sessionServiceDie'
+   * @param { function } callback -  Used to unregister listener for ('sessionServiceDie') command.
+   * @throws { BusinessError } 202 - Not System App.
+   * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+   * 2.Incorrect parameter types.
+   * @throws { BusinessError } 6600101 - Session service exception.
+   * @syscap SystemCapability.Multimedia.AVSession.Core
+   * @systemapi
+   * @since 9
+   */
+  function off(type: 'sessionServiceDie', callback?: () => void): void;
+
+  /**
+   * Send system media key event.The system automatically selects the recipient.
+   * @permission ohos.permission.MANAGE_MEDIA_RESOURCES
+   * @param { KeyEvent } event - The key event to be sent
+   * @param { AsyncCallback<void> } callback - The asyncCallback triggered when the command is executed successfully
+   * @throws { BusinessError } 201 - permission denied
+   * @throws { BusinessError } 202 - Not System App.
+   * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+   * 2.Parameter verification failed.
+   * @throws { BusinessError } 6600101 - Session service exception.
+   * @throws { BusinessError } 6600105 - Invalid session command.
+   * @syscap SystemCapability.Multimedia.AVSession.Manager
+   * @systemapi
+   * @since 9
+   */
+  function sendSystemAVKeyEvent(event: KeyEvent, callback: AsyncCallback<void>): void;
+
+  /**
+   * Send system media key event.The system automatically selects the recipient.
+   * @permission ohos.permission.MANAGE_MEDIA_RESOURCES
+   * @param { KeyEvent } event - The key event to be sent
+   * @returns { Promise<void> } void promise when executed successfully
+   * @throws { BusinessError } 201 - permission denied
+   * @throws { BusinessError } 202 - Not System App.
+   * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+   * 2.Parameter verification failed.
+   * @throws { BusinessError } 6600101 - Session service exception.
+   * @throws { BusinessError } 6600105 - Invalid session command.
+   * @syscap SystemCapability.Multimedia.AVSession.Manager
+   * @systemapi
+   * @since 9
+   */
+  function sendSystemAVKeyEvent(event: KeyEvent): Promise<void>;
+
+  /**
+   * Send system control command.The system automatically selects the recipient.
+   * @permission ohos.permission.MANAGE_MEDIA_RESOURCES
+   * @param { AVControlCommand } command - The command to be sent. See {@link AVControlCommand}
+   * @param { AsyncCallback<void> } callback - The asyncCallback triggered when the command is executed successfully
+   * @throws { BusinessError } 201 - permission denied
+   * @throws { BusinessError } 202 - Not System App.
+   * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+   * 2.Parameter verification failed.
+   * @throws { BusinessError } 6600101 - Session service exception.
+   * @throws { BusinessError } 6600105 - Invalid session command.
+   * @throws { BusinessError } 6600107 - Too many commands or events.
+   * @syscap SystemCapability.Multimedia.AVSession.Manager
+   * @systemapi
+   * @since 9
+   */
+  function sendSystemControlCommand(command: AVControlCommand, callback: AsyncCallback<void>): void;
+
+  /**
+   * Send system control command.The system automatically selects the recipient.
+   * @permission ohos.permission.MANAGE_MEDIA_RESOURCES
+   * @param { AVControlCommand } command - The command to be sent. See {@link AVControlCommand}
+   * @returns { Promise<void> } void promise when executed successfully
+   * @throws { BusinessError } 201 - permission denied
+   * @throws { BusinessError } 202 - Not System App.
+   * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+   * 2.Parameter verification failed.
+   * @throws { BusinessError } 6600101 - Session service exception.
+   * @throws { BusinessError } 6600105 - Invalid session command.
+   * @throws { BusinessError } 6600107 - Too many commands or events.
+   * @syscap SystemCapability.Multimedia.AVSession.Manager
+   * @systemapi
+   * @since 9
+   */
+  function sendSystemControlCommand(command: AVControlCommand): Promise<void>;
+
+  /**
+   * Define different protocol capability
+   * @enum { number }
+   * @syscap SystemCapability.Multimedia.AVSession.AVCast
+   * @since 11
+   */
+  /**
+   * Define different protocol capability
+   * @enum { number }
+   * @syscap SystemCapability.Multimedia.AVSession.AVCast
+   * @atomicservice
+   * @since 12
+   */
+  enum ProtocolType {
+    /**
+     * The default cast type "local", media can be routed on the same device, 
+     * including internal speakers or audio jack on the device itself, A2DP devices.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @since 11
+     */
+    /**
+     * The default cast type "local", media can be routed on the same device, 
+     * including internal speakers or audio jack on the device itself, A2DP devices.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 12
+     */
+    TYPE_LOCAL = 0,
+
+    /**
+     * Cast+ mirror capability
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @systemapi
+     * @since 10
+     */
+    TYPE_CAST_PLUS_MIRROR = 1,
+
+    /**
+     * The Cast+ Stream indicating the media is presenting on a different device
+     * the application need get an AVCastController to control remote playback.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @since 11
+     */
+    /**
+     * The Cast+ Stream indicating the media is presenting on a different device
+     * the application need get an AVCastController to control remote playback.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 12
+     */
+    TYPE_CAST_PLUS_STREAM = 2,
+
+    /**
+     * The DLNA type indicates the device supports DLNA protocol,
+     * the application needs to get an AVCastController to control remote playback.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 12
+     */
+    TYPE_DLNA = 4,
+  }
+
+  /**
+   * Start device discovery.
+   * @param { AsyncCallback<void> } callback a callback function
+   * @throws { BusinessError } 202 - Not System App.
+   * @syscap SystemCapability.Multimedia.AVSession.AVCast
+   * @systemapi
+   * @since 10
+   */
+  function startCastDeviceDiscovery(callback: AsyncCallback<void>): void;
+
+  /**
+   * Start device discovery.
+   * @param { number } filter device filter when discovering, can be an union of {@link ProtocolType}
+   * @param { AsyncCallback<void> } callback a callback function
+   * @throws { BusinessError } 202 - Not System App.
+   * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+   * 2.Parameter verification failed.
+   * @syscap SystemCapability.Multimedia.AVSession.AVCast
+   * @systemapi
+   * @since 10
+   */
+  function startCastDeviceDiscovery(filter: number, callback: AsyncCallback<void>): void;
+
+  /**
+   * Start device discovery.
+   * @param { number } filter device filter when discovering, can be an union of {@link ProtocolType}
+   * @returns { Promise<void> } Promise for the result
+   * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+   * 2.Parameter verification failed.
+   * @syscap SystemCapability.Multimedia.AVSession.AVCast
+   * @systemapi
+   * @since 10
+   */
+  /**
+   * Start device discovery.
+   * @param { number } [filter] - device filter when discovering, can be an union of {@link ProtocolType}
+   * @param { Array<string> } [drmSchemes] - filter drm-enabled devices which are represented by uuid.
+   * It is effective when protocol type is TYPE_CAST_PLUS_STREAM.
+   * @returns { Promise<void> } Promise for the result
+   * @throws { BusinessError } 202 - Not System App.
+   * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+   * 2.Incorrect parameter types. 3.Parameter verification failed.
+   * @syscap SystemCapability.Multimedia.AVSession.AVCast
+   * @systemapi
+   * @since 12
+   */
+  function startCastDeviceDiscovery(filter?: number, drmSchemes?: Array<string>): Promise<void>;
+
+  /**
+   * Stop device discovery.
+   * @param { AsyncCallback<void> } callback a callback function
+   * @throws { BusinessError } 202 - Not System App.
+   * @syscap SystemCapability.Multimedia.AVSession.AVCast
+   * @systemapi
+   * @since 10
+   */
+  function stopCastDeviceDiscovery(callback: AsyncCallback<void>): void;
+
+  /**
+   * Stop device discovery.
+   * @returns { Promise<void> } Promise for the result
+   * @throws { BusinessError } 202 - Not System App.
+   * @syscap SystemCapability.Multimedia.AVSession.AVCast
+   * @systemapi
+   * @since 10
+   */
+  function stopCastDeviceDiscovery(): Promise<void>;
+
+  /**
+   * Enable or disable device to be discoverable, used at sink side.
+   * @param { boolean } enable true: can be discoverable, false: cannot be discoverable.
+   * @param { AsyncCallback<void> } callback a callback function
+   * @throws { BusinessError } 202 - Not System App.
+   * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+   * 2.Parameter verification failed.
+   * @syscap SystemCapability.Multimedia.AVSession.AVCast
+   * @systemapi
+   * @since 10
+   */
+  function setDiscoverable(enable: boolean, callback: AsyncCallback<void>): void;
+
+  /**
+   * Enable or disable device to be discoverable, used at sink side.
+   * @param { boolean } enable true: can be discoverable, false: cannot be discoverable.
+   * @returns { Promise<void> } Promise for the result
+   * @throws { BusinessError } 202 - Not System App.
+   * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+   * 2.Parameter verification failed.
+   * @syscap SystemCapability.Multimedia.AVSession.AVCast
+   * @systemapi
+   * @since 10
+   */
+  function setDiscoverable(enable: boolean): Promise<void>;
+
+  /**
+   * Register device discovery callback
+   * @param { 'deviceAvailable' } type Registration Type
+   * @param { function } callback Used to returns the device info
+   * @throws { BusinessError } 202 - Not System App.
+   * @throws {BusinessError} 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+   * 2.Incorrect parameter types.
+   * @syscap SystemCapability.Multimedia.AVSession.AVCast
+   * @systemapi
+   * @since 10
+   */
+  function on(type: 'deviceAvailable', callback: (device: OutputDeviceInfo) => void): void;
+
+  /**
+   * Unregister device discovery callback
+   * @param { 'deviceAvailable' } type Registration Type
+   * @param { function } callback Used to returns the device info
+   * @throws { BusinessError } 202 - Not System App.
+   * @throws {BusinessError} 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+   * 2.Incorrect parameter types.
+   * @syscap SystemCapability.Multimedia.AVSession.AVCast
+   * @systemapi
+   * @since 10
+   */
+  function off(type: 'deviceAvailable', callback?: (device: OutputDeviceInfo) => void): void;
+
+  /**
+   * Register device offline callback
+   * @param { 'deviceOffline' } type - Registration Type
+   * @param { function } callback - Used to returns the device info
+   * @throws { BusinessError } 202 - Not System App.
+   * @throws {BusinessError} 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+   * 2.Incorrect parameter types.
+   * @syscap SystemCapability.Multimedia.AVSession.AVCast
+   * @systemapi
+   * @since 11
+   */
+  function on(type: 'deviceOffline', callback: (deviceId: string) => void): void;
+
+  /**
+   * Unregister device offline callback
+   * @param { 'deviceOffline' } type - Registration Type
+   * @param { function } callback - Used to returns the device info
+   * @throws { BusinessError } 202 - Not System App.
+   * @throws {BusinessError} 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+   * 2.Incorrect parameter types.
+   * @syscap SystemCapability.Multimedia.AVSession.AVCast
+   * @systemapi
+   * @since 11
+   */
+  function off(type: 'deviceOffline', callback?: (deviceId: string) => void): void;
+
+  /**
+   * Register a callback to retrieve an avsession cast controller.
+   * This function can be used at both side to get the same controller to do the playback control.
+   * @permission ohos.permission.MANAGE_MEDIA_RESOURCES
+   * @param { string } sessionId Specifies the sessionId to get controller.
+   * @param { AsyncCallback<AVCastController> } callback - async callback for the AVCastController.
+   * @throws {BusinessError} 201 - permission denied
+   * @throws { BusinessError } 202 - Not System App.
+   * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+   * 2.Parameter verification failed.
+   * @throws {BusinessError} 6600101 - Session service exception
+   * @throws {BusinessError} 6600102 - session does not exist
+   * @syscap SystemCapability.Multimedia.AVSession.AVCast
+   * @systemapi
+   * @since 10
+   */
+  function getAVCastController(sessionId: string, callback: AsyncCallback<AVCastController>): void;
+
+  /**
+   * Get the current session's remote controller client.
+   * If the avsession is not under casting state, the controller will return null.
+   * @permission ohos.permission.MANAGE_MEDIA_RESOURCES
+   * @param { string } sessionId Specifies the sessionId to get controller.
+   * @returns { Promise<AVCastController> } Promise for the AVCastController
+   * @throws {BusinessError} 201 - permission denied
+   * @throws { BusinessError } 202 - Not System App.
+   * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+   * 2.Parameter verification failed.
+   * @throws {BusinessError} 6600101 - server exception
+   * @throws {BusinessError} 6600102 - session does not exist
+   * @syscap SystemCapability.Multimedia.AVSession.AVCast
+   * @systemapi
+   * @since 10
+   */
+  function getAVCastController(sessionId: string): Promise<AVCastController>;
+
+  /**
+   * Cast resource to remote device.
+   * @permission ohos.permission.MANAGE_MEDIA_RESOURCES
+   * @param { SessionToken } session Specifies the sessionId which is to be casted.
+   * @param { OutputDeviceInfo } device Specifies the device to cast.
+   * @param { AsyncCallback<void> } callback A callback instance used to return when start casting.
+   * @throws {BusinessError} 201 - permission denied
+   * @throws { BusinessError } 202 - Not System App.
+   * @throws {BusinessError} 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+   * 2.Incorrect parameter types. 3.Parameter verification failed.
+   * @throws {BusinessError} 6600101 - Session service exception
+   * @throws {BusinessError} 6600108 - Device connecting failed
+   * @syscap SystemCapability.Multimedia.AVSession.AVCast
+   * @systemapi
+   * @since 10
+   */
+  function startCasting(session: SessionToken, device: OutputDeviceInfo, callback: AsyncCallback<void>): void;
+
+  /**
+   * Cast resource to remote device.
+   * @permission ohos.permission.MANAGE_MEDIA_RESOURCES
+   * @param { SessionToken } session Specifies the sessionId which is to be casted.
+   * @param { OutputDeviceInfo } device Specifies the device to cast.
+   * @returns { Promise<void> } Promise for the result
+   * @throws {BusinessError} 201 - permission denied
+   * @throws { BusinessError } 202 - Not System App.
+   * @throws {BusinessError} 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+   * 2.Incorrect parameter types. 3.Parameter verification failed.
+   * @throws {BusinessError} 6600101 - Session service exception
+   * @throws {BusinessError} 6600108 - Device connecting failed
+   * @syscap SystemCapability.Multimedia.AVSession.AVCast
+   * @systemapi
+   * @since 10
+   */
+  function startCasting(session: SessionToken, device: OutputDeviceInfo): Promise<void>;
+
+  /**
+   * Stop current cast and disconnect device connection.
+   * @param { SessionToken } session Specifies the sessionId which is to be stopped.
+   * @param { AsyncCallback<void> } callback A callback instance used to return when cast stopped completed.
+   * @throws { BusinessError } 202 - Not System App.
+   * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+   * 2.Incorrect parameter types. 3.Parameter verification failed.
+   * @throws { BusinessError } 6600109 - The remote connection is not established
+   * @syscap SystemCapability.Multimedia.AVSession.AVCast
+   * @systemapi
+   * @since 10
+   */
+  function stopCasting(session: SessionToken, callback: AsyncCallback<void>): void;
+
+  /**
+   * Stop current cast and disconnect device connection.
+   * @param { SessionToken } session Specifies the sessionId which is to be stopped.
+   * @returns { Promise<void> } Promise for the result
+   * @throws { BusinessError } 202 - Not System App.
+   * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+   * 2.Incorrect parameter types. 3.Parameter verification failed.
+   * @throws { BusinessError } 6600109 - The remote connection is not established
+   * @syscap SystemCapability.Multimedia.AVSession.AVCast
+   * @systemapi
+   * @since 10
+   */
+  function stopCasting(session: SessionToken): Promise<void>;
+
+  /**
+   * Begin to write device logs into a file descriptor for the purpose of problem locating.
+   * If the logs exceed max file size, no logs will be written and DEVICE_LOG_FULL event will be omitted.
+   * @param { string } url - The file descriptor to be written.
+   * @param { number } maxSize - The max size to be written in kilobyte.
+   * if not set, then written process will exit when there is no space to write.
+   * @returns { Promise<void> } Promise for the result
+   * @throws { BusinessError } 202 - Not System App.
+   * @throws { BusinessError } 401 - Parameter check failed. 1. Mandatory parameters are left unspecified.
+   * 2. Incorrect parameter types.
+   * @throws { BusinessError } 6600101 - Session service exception.
+   * @throws { BusinessError } 6600102 - The session does not exist.
+   * @syscap SystemCapability.Multimedia.AVSession.AVCast
+   * @systemapi
+   * @since 13
+   */
+  function startDeviceLogging(url: string, maxSize?: number): Promise<void>;
+
+  /**
+   * Stop the current device written even the discovery is ongoing.
+   * @returns { Promise<void> } Promise for the result
+   * @throws { BusinessError } 202 - Not System App.
+   * @throws { BusinessError } 6600101 - Session service exception.
+   * @throws { BusinessError } 6600102 - The session does not exist.
+   * @syscap SystemCapability.Multimedia.AVSession.AVCast
+   * @systemapi
+   * @since 13
+   */
+  function stopDeviceLogging(): Promise<void>;
+
+  /**
+   * Register log event callback.
+   * @param { 'deviceLogEvent' } type - Command to register 'deviceLogEvent'.
+   * @param { Callback<DeviceLogEventCode> } callback - Used to handle ('deviceLogEvent') command
+   * @throws { BusinessError } 202 - Not System App.
+   * @throws { BusinessError } 401 - Parameter check failed. 1. Mandatory parameters are left unspecified.
+   * 2. Incorrect parameter types.
+   * @throws { BusinessError } 6600101 - Session service exception.
+   * @throws { BusinessError } 6600102 - The session does not exist.
+   * @syscap SystemCapability.Multimedia.AVSession.AVCast
+   * @systemapi
+   * @since 13
+   */
+  function on(type: 'deviceLogEvent', callback: Callback<DeviceLogEventCode>): void;
+
+  /**
+   * UnRegister log event callback.
+   * @param { 'deviceLogEvent' } type - Command to register 'deviceLogEvent'.
+   * @param { Callback<DeviceLogEventCode> } callback - Used to handle ('deviceLogEvent') command
+   * @throws { BusinessError } 202 - Not System App.
+   * @throws { BusinessError } 401 - Parameter check failed. 1. Mandatory parameters are left unspecified.
+   * 2. Incorrect parameter types.
+   * @throws { BusinessError } 6600101 - Session service exception.
+   * @throws { BusinessError } 6600102 - The session does not exist.
+   * @syscap SystemCapability.Multimedia.AVSession.AVCast
+   * @systemapi
+   * @since 13
+   */
+  function off(type: 'deviceLogEvent', callback?: Callback<DeviceLogEventCode>): void;
+
+  /**
+   * Enumerates device log event code.
+   * @enum { number }
+   * @syscap SystemCapability.Multimedia.AVSession.AVCast
+   * @systemapi
+   * @since 13
+   */
+  enum DeviceLogEventCode {
+    /**
+      * Log is full.
+      * @syscap SystemCapability.Multimedia.AVSession.AVCast
+      * @systemapi
+      * @since 13
+      */
+    DEVICE_LOG_FULL = 1,
+
+    /**
+      * Log is written with exception, such as the fd cannot be written and so on.
+      * @syscap SystemCapability.Multimedia.AVSession.AVCast
+      * @systemapi
+      * @since 13
+      */
+    DEVICE_LOG_EXCEPTION = 2,
+  }
+
+  /**
+   * Session type, support audio & video
+   * @typedef { 'audio' | 'video' } AVSessionType
+   * @syscap SystemCapability.Multimedia.AVSession.Core
+   * @since 10
+   */
+  /**
+   * Session type, support audio & video, voice_call
+   * @typedef { 'audio' | 'video' | 'voice_call' } AVSessionType
+   * @syscap SystemCapability.Multimedia.AVSession.Core
+   * @since 11
+   */
+  /**
+   * Session type supports audio & video, voice_call, video_call
+   * @typedef { 'audio' | 'video' | 'voice_call' | 'video_call' } AVSessionType
+   * @syscap SystemCapability.Multimedia.AVSession.Core
+   * @atomicservice
+   * @since 12
+   */
+  type AVSessionType = 'audio' | 'video' | 'voice_call' | 'video_call';
+
+  /**
+   * AVSession object.
+   * @interface AVSession
+   * @syscap SystemCapability.Multimedia.AVSession.Core
+   * @since 10
+   */
+  /**
+   * AVSession object.
+   * @interface AVSession
+   * @syscap SystemCapability.Multimedia.AVSession.Core
+   * @atomicservice
+   * @since 12
+   */
+  class AVSessionStringBindObject {
+    [key:string]:Object;
+  }
+  interface AVSession {
+    /**
+     * unique session Id
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * unique session Id
+     * @type { string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    readonly sessionId: string;
+
+    /**
+     * Get current session type
+     * @type { AVSessionType }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Get current session type
+     * @type { AVSessionType }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    readonly sessionType: AVSessionType;
+
+    /**
+     * Set the metadata of this session.
+     * In addition to the required properties, users can fill in partially supported properties
+     * @param { AVMetadata } data {@link AVMetadata}
+     * @param { AsyncCallback<void> } callback - The asyncCallback triggered when the command is executed successfully
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Parameter verification failed.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    setAVMetadata(data: AVMetadata, callback: AsyncCallback<void>): void;
+
+    /**
+     * Set the metadata of this session.
+     * In addition to the required properties, users can fill in partially supported properties
+     * @param { AVMetadata } data {@link AVMetadata}
+     * @returns { Promise<void> } void promise when executed successfully
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Parameter verification failed.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Set the metadata of this session.
+     * In addition to the required properties, users can fill in partially supported properties
+     * @param { AVMetadata } data {@link AVMetadata}
+     * @returns { Promise<void> } void promise when executed successfully
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Parameter verification failed.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    setAVMetadata(data: AVMetadata): Promise<void>;
+
+    /**
+     * Set the metadata related with current call.
+     * @param { CallMetadata } data - {@link CallMetadata}
+     * @param { AsyncCallback<void> } callback - The asyncCallback triggered when the command is executed successfully
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types. 3.Parameter verification failed.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 11
+     */
+    setCallMetadata(data: CallMetadata, callback: AsyncCallback<void>): void;
+
+    /**
+     * Set the metadata related with current call.
+     * @param { CallMetadata } data - {@link CallMetadata}
+     * @returns { Promise<void> } void promise when executed successfully
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types. 3.Parameter verification failed.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 11
+     */
+    setCallMetadata(data: CallMetadata): Promise<void>;
+
+    /**
+     * Set the playback state of this session.
+     * @param { AVPlaybackState } state {@link AVPlaybackState}
+     * @param { AsyncCallback<void> } callback - The asyncCallback triggered when the command is executed successfully
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Parameter verification failed.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    setAVPlaybackState(state: AVPlaybackState, callback: AsyncCallback<void>): void;
+
+    /**
+     * Set the playback state of this session.
+     * @param { AVPlaybackState } state {@link AVPlaybackState}
+     * @returns { Promise<void> } void promise when executed successfully
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Parameter verification failed.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Set the playback state of this session.
+     * @param { AVPlaybackState } state {@link AVPlaybackState}
+     * @returns { Promise<void> } void promise when executed successfully
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Parameter verification failed.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    setAVPlaybackState(state: AVPlaybackState): Promise<void>;
+
+    /**
+     * Set the call state of this session.
+     * @param { AVCallState } state - {@link AVCallState}
+     * @param { AsyncCallback<void> } callback - The asyncCallback triggered when the command is executed successfully
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Parameter verification failed.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 11
+     */
+    setAVCallState(state: AVCallState, callback: AsyncCallback<void>): void;
+
+    /**
+     * Set the call state of this session.
+     * @param { AVCallState } state - {@link AVCallState}
+     * @returns { Promise<void> } void promise when executed successfully
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Parameter verification failed.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 11
+     */
+    setAVCallState(state: AVCallState): Promise<void>;
+
+    /**
+     * Set the ability to start the session corresponding to
+     * @param { WantAgent } ability - The WantAgent for launch the ability
+     * @param { AsyncCallback<void> } callback - The asyncCallback triggered when the command is executed successfully
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Parameter verification failed.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    setLaunchAbility(ability: WantAgent, callback: AsyncCallback<void>): void;
+
+    /**
+     * Set the ability to start the session corresponding to
+     * @param { WantAgent } ability - The WantAgent for launch the ability
+     * @returns { Promise<void> } void promise when executed successfully
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Parameter verification failed.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Set the ability to start the session corresponding to
+     * @param { WantAgent } ability - The WantAgent for launch the ability
+     * @returns { Promise<void> } void promise when executed successfully
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Parameter verification failed.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    setLaunchAbility(ability: WantAgent): Promise<void>;
+
+    /**
+     * Dispatch the session event of this session.
+     * @param { string } event - Session event name to dispatch
+     * @param { object } args - The parameters of session event
+     * @param { AsyncCallback<void>} callback - The asyncCallback triggered when the command is executed successfully
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types. 3.Parameter verification failed.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    dispatchSessionEvent(event: string, args: AVSessionStringBindObject, callback: AsyncCallback<void>): void;
+
+    /**
+     * Dispatch the session event of this session.
+     * @param { string } event - Session event name to dispatch
+     * @param { object } args - The parameters of session event
+     * @returns { Promise<void> } void promise when executed successfully
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types. 3.Parameter verification failed.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Dispatch the session event of this session.
+     * @param { string } event - Session event name to dispatch
+     * @param { object } args - The parameters of session event
+     * @returns { Promise<void> } void promise when executed successfully
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types. 3.Parameter verification failed.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    dispatchSessionEvent(event: string, args: AVSessionStringBindObject): Promise<void>;
+
+    /**
+     * Set the playlist of queueItem. Identifies the content of the playlist presented by this session.
+     * @param { Array<AVQueueItem> } items - An array of the AVQueueItem
+     * @param { AsyncCallback<void> } callback - The asyncCallback triggered when the command is executed successfully.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Parameter verification failed.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    setAVQueueItems(items: Array<AVQueueItem>, callback: AsyncCallback<void>): void;
+
+    /**
+     * Set the playlist of queueItem. Identifies the content of the playlist presented by this session.
+     * @param { Array<AVQueueItem> } items - An array of the AVQueueItem
+     * @returns { Promise<void> } void promise when executed successfully
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Parameter verification failed.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Set the playlist of queueItem. Identifies the content of the playlist presented by this session.
+     * @param { Array<AVQueueItem> } items - An array of the AVQueueItem
+     * @returns { Promise<void> } void promise when executed successfully
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Parameter verification failed.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    setAVQueueItems(items: Array<AVQueueItem>): Promise<void>;
+
+    /**
+     * Set the name of the playlist presented by this session.
+     * @param { string } title - The name of the playlist
+     * @param { AsyncCallback<void> } callback - The asyncCallback triggered when the command is executed successfully.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Parameter verification failed.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    setAVQueueTitle(title: string, callback: AsyncCallback<void>): void;
+
+    /**
+     * Set the name of the playlist presented by this session.
+     * @param { string } title - The name of the playlist
+     * @returns { Promise<void> } void promise when executed successfully
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Parameter verification failed.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Set the name of the playlist presented by this session.
+     * @param { string } title - The name of the playlist
+     * @returns { Promise<void> } void promise when executed successfully
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Parameter verification failed.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    setAVQueueTitle(title: string): Promise<void>;
+
+    /**
+     * Set the custom media packets for this session.
+     * @param { object } extras - The custom media packets
+     * @param { AsyncCallback<void> } callback - The asyncCallback triggered when the command is executed successfully.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Parameter verification failed.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    setExtras(extras: AVSessionStringBindObject, callback: AsyncCallback<void>): void;
+
+    /**
+     * Set the custom media packets for this session.
+     * @param { object } extras - The custom media packets
+     * @returns { Promise<void> } void promise when executed successfully
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Parameter verification failed.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Set the custom media packets for this session.
+     * @param { object } extras - The custom media packets
+     * @returns { Promise<void> } void promise when executed successfully
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Parameter verification failed.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    setExtras(extras: AVSessionStringBindObject): Promise<void>;
+
+    /**
+     * Get the current session's own controller
+     * @param { AsyncCallback<AVSessionController> } callback - async callback for the AVSessionController.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    getController(callback: AsyncCallback<AVSessionController>): void;
+
+    /**
+     * Get the current session's own controller
+     * @returns { Promise<AVSessionController> } Promise for the AVSessionController
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Get the current session's own controller
+     * @returns { Promise<AVSessionController> } Promise for the AVSessionController
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    getController(): Promise<AVSessionController>;
+
+    /**
+     * Get the cast controller when the session is casted to remote device.
+     * If the avsession is not under casting state, the controller will return null.
+     * @param { AsyncCallback<AVCastController> } callback - async callback for the AVCastController.
+     * @throws {BusinessError} 6600102 - The session does not exist
+     * @throws {BusinessError} 6600109 - The remote connection is not established
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @since 10
+     */
+    getAVCastController(callback: AsyncCallback<AVCastController>): void;
+
+    /**
+     * Get the cast controller when the session is casted to remote device.
+     * If the avsession is not under casting state, the controller will return null.
+     * @returns { Promise<AVCastController> } Promise for the AVCastController
+     * @throws {BusinessError} 6600102 - The session does not exist
+     * @throws {BusinessError} 6600109 - The remote connection is not established
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @since 10
+     */
+    /**
+     * Get the cast controller when the session is casted to remote device.
+     * If the avsession is not under casting state, the controller will return null.
+     * @returns { Promise<AVCastController> } Promise for the AVCastController
+     * @throws {BusinessError} 6600102 - The session does not exist
+     * @throws {BusinessError} 6600109 - The remote connection is not established
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 12
+     */
+    getAVCastController(): Promise<AVCastController>;
+
+    /**
+     * Get output device information
+     * @param { AsyncCallback<OutputDeviceInfo> } callback - async callback for the OutputDeviceInfo.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    getOutputDevice(callback: AsyncCallback<OutputDeviceInfo>): void;
+
+    /**
+     * Get output device information
+     * @returns { Promise<OutputDeviceInfo> } Promise for the OutputDeviceInfo
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Get output device information
+     * @returns { Promise<OutputDeviceInfo> } Promise for the OutputDeviceInfo
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    getOutputDevice(): Promise<OutputDeviceInfo>;
+
+    /**
+     * Get output device information
+     * @returns { OutputDeviceInfo } the OutputDeviceInfo
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Get output device information
+     * @returns { OutputDeviceInfo } the OutputDeviceInfo
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    getOutputDeviceSync(): OutputDeviceInfo;
+
+    /**
+     * Get all the current virtual display information for extended display.
+     * @returns { Promise<Array<CastDisplayInfo>> } Promise for the CastDisplayInfo
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.ExtendedDisplayCast
+     * @atomicservice
+     * @since 12
+     */
+    getAllCastDisplays(): Promise<Array<CastDisplayInfo>>;
+
+    /**
+     * Register play command callback.
+     * As long as it is registered, it means that the ability supports this command.
+     * If you cancel the callback, you need to call off {@link off}
+     * When canceling the callback, need to update the supported commands list.
+     * Each playback command only supports registering one callback,
+     * and the new callback will replace the previous one.
+     * @param { 'play' } type - Command to register 'play'.
+     * @param { function } callback - Used to handle ('play') command
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Register play command callback.
+     * As long as it is registered, it means that the ability supports this command.
+     * If you cancel the callback, you need to call off {@link off}
+     * When canceling the callback, need to update the supported commands list.
+     * Each playback command only supports registering one callback,
+     * and the new callback will replace the previous one.
+     * @param { 'play' } type - Command to register 'play'.
+     * @param { function } callback - Used to handle ('play') command
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    on(type: 'play', callback: () => void): void;
+
+    /**
+     * Register pause command callback.
+     * As long as it is registered, it means that the ability supports this command.
+     * If you cancel the callback, you need to call off {@link off}
+     * When canceling the callback, need to update the supported commands list.
+     * Each playback command only supports registering one callback,
+     * and the new callback will replace the previous one.
+     * @param { 'pause' } type - Command to register 'pause'.
+     * @param { function } callback - Used to handle ('pause') command
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Register pause command callback.
+     * As long as it is registered, it means that the ability supports this command.
+     * If you cancel the callback, you need to call off {@link off}
+     * When canceling the callback, need to update the supported commands list.
+     * Each playback command only supports registering one callback,
+     * and the new callback will replace the previous one.
+     * @param { 'pause' } type - Command to register 'pause'.
+     * @param { function } callback - Used to handle ('pause') command
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    on(type: 'pause', callback: () => void): void;
+
+    /**
+     * Register stop command callback.
+     * As long as it is registered, it means that the ability supports this command.
+     * If you cancel the callback, you need to call off {@link off}
+     * When canceling the callback, need to update the supported commands list.
+     * Each playback command only supports registering one callback,
+     * and the new callback will replace the previous one.
+     * @param { 'stop' } type - Command to register 'stop'.
+     * @param { function } callback - Used to handle ('stop') command
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Register stop command callback.
+     * As long as it is registered, it means that the ability supports this command.
+     * If you cancel the callback, you need to call off {@link off}
+     * When canceling the callback, need to update the supported commands list.
+     * Each playback command only supports registering one callback,
+     * and the new callback will replace the previous one.
+     * @param { 'stop' } type - Command to register 'stop'.
+     * @param { function } callback - Used to handle ('stop') command
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    on(type: 'stop', callback: () => void): void;
+
+    /**
+     * Register playNext command callback.
+     * As long as it is registered, it means that the ability supports this command.
+     * If you cancel the callback, you need to call off {@link off}
+     * When canceling the callback, need to update the supported commands list.
+     * Each playback command only supports registering one callback,
+     * and the new callback will replace the previous one.
+     * @param { 'playNext' } type - Command to register 'playNext'.
+     * @param { function } callback - Used to handle ('playNext') command
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Register playNext command callback.
+     * As long as it is registered, it means that the ability supports this command.
+     * If you cancel the callback, you need to call off {@link off}
+     * When canceling the callback, need to update the supported commands list.
+     * Each playback command only supports registering one callback,
+     * and the new callback will replace the previous one.
+     * @param { 'playNext' } type - Command to register 'playNext'.
+     * @param { function } callback - Used to handle ('playNext') command
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    on(type: 'playNext', callback: () => void): void;
+
+    /**
+     * Register playPrevious command callback.
+     * As long as it is registered, it means that the ability supports this command.
+     * If you cancel the callback, you need to call off {@link off}
+     * When canceling the callback, need to update the supported commands list.
+     * Each playback command only supports registering one callback,
+     * and the new callback will replace the previous one.
+     * @param { 'playPrevious' } type - Command to register 'playPrevious'.
+     * @param { function } callback - Used to handle ('playPrevious') command
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Register playPrevious command callback.
+     * As long as it is registered, it means that the ability supports this command.
+     * If you cancel the callback, you need to call off {@link off}
+     * When canceling the callback, need to update the supported commands list.
+     * Each playback command only supports registering one callback,
+     * and the new callback will replace the previous one.
+     * @param { 'playPrevious' } type - Command to register 'playPrevious'.
+     * @param { function } callback - Used to handle ('playPrevious') command
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    on(type: 'playPrevious', callback: () => void): void;
+
+    /**
+     * Register fastForward command callback.
+     * As long as it is registered, it means that the ability supports this command.
+     * If you cancel the callback, you need to call off {@link off}
+     * When canceling the callback, need to update the supported commands list.
+     * Each playback command only supports registering one callback,
+     * and the new callback will replace the previous one.
+     * @param { 'fastForward' } type - Command to register 'fastForward'.
+     * @param { function } callback - Used to handle ('fastForward') command
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Register fastForward command callback.
+     * As long as it is registered, it means that the ability supports this command.
+     * If you cancel the callback, you need to call off {@link off}
+     * When canceling the callback, need to update the supported commands list.
+     * Each playback command only supports registering one callback,
+     * and the new callback will replace the previous one.
+     * @param { 'fastForward' } type - Command to register 'fastForward'.
+     * @param { function } callback - Used to handle ('fastForward') command
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    on(type: 'fastForward', callback: (time ?: number) => void): void;
+
+    /**
+     * Register rewind command callback.
+     * As long as it is registered, it means that the ability supports this command.
+     * If you cancel the callback, you need to call off {@link off}
+     * When canceling the callback, need to update the supported commands list.
+     * Each playback command only supports registering one callback,
+     * and the new callback will replace the previous one.
+     * @param { 'rewind' } type - Command to register 'rewind'.
+     * @param { function } callback - Used to handle ('rewind') command
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Register rewind command callback.
+     * As long as it is registered, it means that the ability supports this command.
+     * If you cancel the callback, you need to call off {@link off}
+     * When canceling the callback, need to update the supported commands list.
+     * Each playback command only supports registering one callback,
+     * and the new callback will replace the previous one.
+     * @param { 'rewind' } type - Command to register 'rewind'.
+     * @param { function } callback - Used to handle ('rewind') command
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    on(type: 'rewind', callback: (time ?: number) => void): void;
+
+    /**
+     * Unregister play command callback.
+     * When canceling the callback, need to update the supported commands list.
+     * @param { 'play' } type - Command to register 'play'.
+     * @param { function } callback - Used to handle ('play') command
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Unregister play command callback.
+     * When canceling the callback, need to update the supported commands list.
+     * @param { 'play' } type - Command to register 'play'.
+     * @param { function } callback - Used to handle ('play') command
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    off(type: 'play', callback?: () => void): void;
+
+    /**
+     * Unregister pause command callback.
+     * When canceling the callback, need to update the supported commands list.
+     * @param { 'pause' } type - Command to register 'pause'.
+     * @param { function } callback - Used to handle ('pause') command
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Unregister pause command callback.
+     * When canceling the callback, need to update the supported commands list.
+     * @param { 'pause' } type - Command to register 'pause'.
+     * @param { function } callback - Used to handle ('pause') command
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    off(type: 'pause', callback?: () => void): void;
+
+    /**
+     * Unregister stop command callback.
+     * When canceling the callback, need to update the supported commands list.
+     * @param { 'stop' } type - Command to register 'stop'.
+     * @param { function } callback - Used to handle ('stop') command
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Unregister stop command callback.
+     * When canceling the callback, need to update the supported commands list.
+     * @param { 'stop' } type - Command to register 'stop'.
+     * @param { function } callback - Used to handle ('stop') command
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    off(type: 'stop', callback?: () => void): void;
+
+    /**
+     * Unregister playNext command callback.
+     * When canceling the callback, need to update the supported commands list.
+     * @param { 'playNext' } type - Command to register 'playNext'.
+     * @param { function } callback - Used to handle ('playNext') command
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Unregister playNext command callback.
+     * When canceling the callback, need to update the supported commands list.
+     * @param { 'playNext' } type - Command to register 'playNext'.
+     * @param { function } callback - Used to handle ('playNext') command
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    off(type: 'playNext', callback?: () => void): void;
+
+    /**
+     * Unregister playPrevious command callback.
+     * When canceling the callback, need to update the supported commands list.
+     * @param { 'playPrevious' } type - Command to register 'playPrevious'.
+     * @param { function } callback - Used to handle ('playPrevious') command
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Unregister playPrevious command callback.
+     * When canceling the callback, need to update the supported commands list.
+     * @param { 'playPrevious' } type - Command to register 'playPrevious'.
+     * @param { function } callback - Used to handle ('playPrevious') command
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    off(type: 'playPrevious', callback?: () => void): void;
+
+    /**
+     * Unregister fastForward command callback.
+     * When canceling the callback, need to update the supported commands list.
+     * @param { 'fastForward' } type - Command to register 'fastForward'.
+     * @param { function } callback - Used to handle ('fastForward') command
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Unregister fastForward command callback.
+     * When canceling the callback, need to update the supported commands list.
+     * @param { 'fastForward' } type - Command to register 'fastForward'.
+     * @param { function } callback - Used to handle ('fastForward') command
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    off(type: 'fastForward', callback?: () => void): void;
+
+    /**
+     * Unregister rewind command callback.
+     * When canceling the callback, need to update the supported commands list.
+     * @param { 'rewind' } type - Command to register 'rewind'.
+     * @param { function } callback - Used to handle ('rewind') command
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Unregister rewind command callback.
+     * When canceling the callback, need to update the supported commands list.
+     * @param { 'rewind' } type - Command to register 'rewind'.
+     * @param { function } callback - Used to handle ('rewind') command
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    off(type: 'rewind', callback?: () => void): void;
+
+    /**
+     * Register playFromAssetId command callback.
+     * As long as it is registered, it means that the ability supports this command.
+     * If you cancel the callback, you need to call off {@link off}
+     * When canceling the callback, need to update the supported commands list.
+     * Each playback command only supports registering one callback,
+     * and the new callback will replace the previous one.
+     * @param { 'playFromAssetId' } type - Command to register 'playFromAssetId'.
+     * @param { function } callback - Used to handle ('playFromAssetId') command
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 11
+     */
+    /**
+     * Register playFromAssetId command callback.
+     * As long as it is registered, it means that the ability supports this command.
+     * If you cancel the callback, you need to call off {@link off}
+     * When canceling the callback, need to update the supported commands list.
+     * Each playback command only supports registering one callback,
+     * and the new callback will replace the previous one.
+     * @param { 'playFromAssetId' } type - Command to register 'playFromAssetId'.
+     * @param { function } callback - Used to handle ('playFromAssetId') command
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    on(type: 'playFromAssetId', callback: (assetId: number) => void): void;
+
+    /**
+     * Unregister playFromAssetId command callback.
+     * @param { 'playFromAssetId' } type - Command to register 'playFromAssetId'.
+     * @param { function } callback - Used to handle ('playFromAssetId') command
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 11
+     */
+    /**
+     * Unregister playFromAssetId command callback.
+     * @param { 'playFromAssetId' } type - Command to register 'playFromAssetId'.
+     * @param { function } callback - Used to handle ('playFromAssetId') command
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    off(type: 'playFromAssetId', callback?: (assetId: number) => void): void;
+
+    /**
+     * Register seek command callback
+     * @param { 'seek' } type - Registration Type 'seek'
+     * @param { function } callback - Used to handle seek command.The callback provides the seek time(ms)
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Register seek command callback
+     * @param { 'seek' } type - Registration Type 'seek'
+     * @param { function } callback - Used to handle seek command.The callback provides the seek time(ms)
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    on(type: 'seek', callback: (time: number) => void): void;
+
+    /**
+     * Unregister seek command callback
+     * @param { 'seek' } type - Registration Type 'seek'
+     * @param { function } callback - Used to handle seek command.The callback provides the seek time(ms)
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Unregister seek command callback
+     * @param { 'seek' } type - Registration Type 'seek'
+     * @param { function } callback - Used to handle seek command.The callback provides the seek time(ms)
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    off(type: 'seek', callback?: (time: number) => void): void;
+
+    /**
+     * Register setSpeed command callback
+     * @param { 'setSpeed' } type - Registration Type 'setSpeed'
+     * @param { function } callback - Used to handle setSpeed command.The callback provides the speed value
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Register setSpeed command callback
+     * @param { 'setSpeed' } type - Registration Type 'setSpeed'
+     * @param { function } callback - Used to handle setSpeed command.The callback provides the speed value
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    on(type: 'setSpeed', callback: (speed: number) => void): void;
+
+    /**
+     * Unregister setSpeed command callback
+     * @param { 'setSpeed' } type - Registration Type 'setSpeed'
+     * @param { function } callback - Used to handle setSpeed command.The callback provides the speed value
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Unregister setSpeed command callback
+     * @param { 'setSpeed' } type - Registration Type 'setSpeed'
+     * @param { function } callback - Used to handle setSpeed command.The callback provides the speed value
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    off(type: 'setSpeed', callback?: (speed: number) => void): void;
+
+    /**
+     * Register setLoopMode command callback
+     * @param { 'setLoopMode' } type - Registration Type 'setLoopMode'
+     * @param { function } callback - Used to handle setLoopMode command.The callback provides the {@link LoopMode}
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Register setLoopMode command callback
+     * @param { 'setLoopMode' } type - Registration Type 'setLoopMode'
+     * @param { function } callback - Used to handle setLoopMode command.The callback provides the {@link LoopMode}
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    on(type: 'setLoopMode', callback: (mode: LoopMode) => void): void;
+
+    /**
+     * Unregister setLoopMode command callback
+     * @param { 'setLoopMode' } type - Registration Type 'setLoopMode'
+     * @param { function } callback - Used to handle setLoopMode command.The callback provides the {@link LoopMode}
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Unregister setLoopMode command callback
+     * @param { 'setLoopMode' } type - Registration Type 'setLoopMode'
+     * @param { function } callback - Used to handle setLoopMode command.The callback provides the {@link LoopMode}
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    off(type: 'setLoopMode', callback?: (mode: LoopMode) => void): void;
+
+    /**
+     * Register toggle favorite command callback
+     * @param { 'toggleFavorite' } type - Registration Type 'toggleFavorite'
+     * @param { function } callback - Used to handle toggleFavorite command.The callback provides
+     * the assetId for which the favorite status needs to be switched.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Register toggle favorite command callback
+     * @param { 'toggleFavorite' } type - Registration Type 'toggleFavorite'
+     * @param { function } callback - Used to handle toggleFavorite command.The callback provides
+     * the assetId for which the favorite status needs to be switched.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    on(type: 'toggleFavorite', callback: (assetId: string) => void): void;
+
+    /**
+     * Unregister toggle favorite command callback
+     * @param { 'toggleFavorite' } type - Registration Type 'toggleFavorite'
+     * @param { function } callback - Used to handle toggleFavorite command.The callback provides
+     * the assetId for which the favorite status needs to be switched.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Unregister toggle favorite command callback
+     * @param { 'toggleFavorite' } type - Registration Type 'toggleFavorite'
+     * @param { function } callback - Used to handle toggleFavorite command.The callback provides
+     * the assetId for which the favorite status needs to be switched.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    off(type: 'toggleFavorite', callback?: (assetId: string) => void): void;
+
+    /**
+     * Register media key handling callback
+     * @param { 'handleKeyEvent' } type - Registration Type 'handleKeyEvent'
+     * @param { function } callback - Used to handle key events.The callback provides the KeyEvent
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Register media key handling callback
+     * @param { 'handleKeyEvent' } type - Registration Type 'handleKeyEvent'
+     * @param { function } callback - Used to handle key events.The callback provides the KeyEvent
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    on(type: 'handleKeyEvent', callback: (event: KeyEvent) => void): void;
+
+    /**
+     * Unregister media key handling callback
+     * @param { 'handleKeyEvent' } type - Registration Type 'handleKeyEvent'
+     * @param { function } callback - Used to handle key events.The callback provides the KeyEvent
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Unregister media key handling callback
+     * @param { 'handleKeyEvent' } type - Registration Type 'handleKeyEvent'
+     * @param { function } callback - Used to handle key events.The callback provides the KeyEvent
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    off(type: 'handleKeyEvent', callback?: (event: KeyEvent) => void): void;
+
+    /**
+     * Register session output device change callback
+     * @param { 'outputDeviceChange' } type - Registration Type 'outputDeviceChange'
+     * @param { function } callback - Used to handle output device changed.
+     * The callback provide the new device info {@link OutputDeviceInfo} and related connection state {@link ConnectionState}.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception
+     * @throws { BusinessError } 6600102 - The session does not exist
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Register session output device change callback
+     * @param { 'outputDeviceChange' } type - Registration Type 'outputDeviceChange'
+     * @param { function } callback - Used to handle output device changed.
+     * The callback provide the new device info {@link OutputDeviceInfo} and related connection state {@link ConnectionState}.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception
+     * @throws { BusinessError } 6600102 - The session does not exist
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    on(type: 'outputDeviceChange', callback: (state: ConnectionState, device: OutputDeviceInfo) => void): void;
+
+    /**
+     * Unregister session output device change callback
+     * @param { 'outputDeviceChange' } type - Registration Type 'outputDeviceChange'
+     * @param { function } callback - Used to handle output device changed.
+     * The callback provide the new device info {@link OutputDeviceInfo} and related connection state {@link ConnectionState}.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception
+     * @throws { BusinessError } 6600102 - The session does not exist
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Unregister session output device change callback
+     * @param { 'outputDeviceChange' } type - Registration Type 'outputDeviceChange'
+     * @param { function } callback - Used to handle output device changed.
+     * The callback provide the new device info {@link OutputDeviceInfo} and related connection state {@link ConnectionState}.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception
+     * @throws { BusinessError } 6600102 - The session does not exist
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    off(type: 'outputDeviceChange', callback?: (state: ConnectionState, device: OutputDeviceInfo) => void): void;
+
+    /**
+     * Register session custom command change callback
+     * @param { 'commonCommand' } type - Registration Type 'commonCommand'
+     * @param { function } callback - Used to handle event when the common command is received
+     * The callback provide the command name and command args
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Register session custom command change callback
+     * @param { 'commonCommand' } type - Registration Type 'commonCommand'
+     * @param { function } callback - Used to handle event when the common command is received
+     * The callback provide the command name and command args
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    on(type: 'commonCommand', callback: (command: string, args: AVSessionStringBindObject) => void): void;
+
+    /**
+     * Unregister session custom command change callback
+     * @param { 'commonCommand' } type - Registration Type 'commonCommand'
+     * @param { function } callback - Used to cancel a specific listener
+     * The callback provide the command name and command args
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Unregister session custom command change callback
+     * @param { 'commonCommand' } type - Registration Type 'commonCommand'
+     * @param { function } callback - Used to cancel a specific listener
+     * The callback provide the command name and command args
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    off(type: 'commonCommand', callback?: (command: string, args: AVSessionStringBindObject) => void): void;
+
+    /**
+     * Register the item to play from the playlist change callback
+     * @param { 'skipToQueueItem' } type - Registration Type 'skipToQueueItem'
+     * @param { function } callback - Used to handle the item to be played.
+     * The callback provide the new device info {@link OutputDeviceInfo}
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Register the item to play from the playlist change callback
+     * @param { 'skipToQueueItem' } type - Registration Type 'skipToQueueItem'
+     * @param { function } callback - Used to handle the item to be played.
+     * The callback provide the new device info {@link OutputDeviceInfo}
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    on(type: 'skipToQueueItem', callback: (itemId: number) => void): void;
+
+    /**
+     * Unregister the item to play from the playlist change callback
+     * @param { 'skipToQueueItem' } type - Registration Type 'skipToQueueItem'
+     * @param { function } callback - Used to handle the item to be played.
+     * The callback provide the new device info {@link OutputDeviceInfo}
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Unregister the item to play from the playlist change callback
+     * @param { 'skipToQueueItem' } type - Registration Type 'skipToQueueItem'
+     * @param { function } callback - Used to handle the item to be played.
+     * The callback provide the new device info {@link OutputDeviceInfo}
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    off(type: 'skipToQueueItem', callback?: (itemId: number) => void): void;
+
+    /**
+     * Register answer command callback.
+     * As long as it is registered, it means that the ability supports this command.
+     * If you cancel the callback, you need to call off {@link off}
+     * @param { 'answer' } type - Command to register 'answer'.
+     * @param { Callback<void> } callback - Used to handle ('answer') command
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 11
+     */
+    /**
+     * Register answer command callback.
+     * As long as it is registered, it means that the ability supports this command.
+     * If you cancel the callback, you need to call off {@link off}
+     * @param { 'answer' } type - Command to register 'answer'.
+     * @param { Callback<void> } callback - Used to handle ('answer') command
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    on(type: 'answer', callback: Callback<void>): void;
+
+    /**
+     * Unregister answer command callback.
+     * @param { 'answer' } type - Command to register 'answer'.
+     * @param { Callback<void> } callback - Used to handle ('answer') command
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 11
+     */
+    /**
+     * Unregister answer command callback.
+     * @param { 'answer' } type - Command to register 'answer'.
+     * @param { Callback<void> } callback - Used to handle ('answer') command
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    off(type: 'answer', callback?: Callback<void>): void;
+
+    /**
+     * Register hangUp command callback.
+     * As long as it is registered, it means that the ability supports this command.
+     * If you cancel the callback, you need to call off {@link off}
+     * @param { 'hangUp' } type - Command to register 'hangUp'.
+     * @param { Callback<void> } callback - Used to handle ('hangUp') command
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 11
+     */
+    /**
+     * Register hangUp command callback.
+     * As long as it is registered, it means that the ability supports this command.
+     * If you cancel the callback, you need to call off {@link off}
+     * @param { 'hangUp' } type - Command to register 'hangUp'.
+     * @param { Callback<void> } callback - Used to handle ('hangUp') command
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    on(type: 'hangUp', callback: Callback<void>): void;
+
+    /**
+     * Unregister hangUp command callback.
+     * @param { 'hangUp' } type - Command to register 'hangUp'.
+     * @param { Callback<void> } callback - Used to handle ('hangUp') command
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 11
+     */
+    /**
+     * Unregister hangUp command callback.
+     * @param { 'hangUp' } type - Command to register 'hangUp'.
+     * @param { Callback<void> } callback - Used to handle ('hangUp') command
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    off(type: 'hangUp', callback?: Callback<void>): void;
+
+    /**
+     * Register toggleCallMute command callback.
+     * As long as it is registered, it means that the ability supports this command.
+     * If you cancel the callback, you need to call off {@link off}
+     * @param { 'toggleCallMute' } type - Command to register 'toggleCallMute'.
+     * @param { Callback<void> } callback - Used to handle ('toggleCallMute') command
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 11
+     */
+    /**
+     * Register toggleCallMute command callback.
+     * As long as it is registered, it means that the ability supports this command.
+     * If you cancel the callback, you need to call off {@link off}
+     * @param { 'toggleCallMute' } type - Command to register 'toggleCallMute'.
+     * @param { Callback<void> } callback - Used to handle ('toggleCallMute') command
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    on(type: 'toggleCallMute', callback: Callback<void>): void;
+
+    /**
+     * Unregister toggleCallMute command callback.
+     * @param { 'toggleCallMute' } type - Command to register 'toggleCallMute'.
+     * @param { Callback<void> } callback - Used to handle ('toggleCallMute') command
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 11
+     */
+    /**
+     * Unregister toggleCallMute command callback.
+     * @param { 'toggleCallMute' } type - Command to register 'toggleCallMute'.
+     * @param { Callback<void> } callback - Used to handle ('toggleCallMute') command
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    off(type: 'toggleCallMute', callback?: Callback<void>): void;
+
+    /**
+     * Register listener for cast display information changed.
+     * @param { 'castDisplayChange' } type - Type of the 'castDisplayChange' to listen for.
+     * @param { Callback<CastDisplayInfo> } callback - Callback used to return cast display information.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception
+     * @throws { BusinessError } 6600102 - The session does not exist
+     * @syscap SystemCapability.Multimedia.AVSession.ExtendedDisplayCast
+     * @atomicservice
+     * @since 12
+     */
+    on(type: 'castDisplayChange', callback: Callback<CastDisplayInfo>): void;
+
+    /**
+     * Unregister listener for cast display information changed.
+     * @param { 'castDisplayChange' } type - Type of the 'castDisplayChange' to listen for.
+     * @param { Callback<CastDisplayInfo> } callback - Callback used to return cast display information.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception
+     * @throws { BusinessError } 6600102 - The session does not exist
+     * @syscap SystemCapability.Multimedia.AVSession.ExtendedDisplayCast
+     * @atomicservice
+     * @since 12
+     */
+    off(type: 'castDisplayChange', callback?: Callback<CastDisplayInfo>): void;
+
+    /**
+     * Stop current cast and disconnect device connection.
+     * @param { AsyncCallback<void> } callback A callback instance used to return when cast stopped completed.
+     * @throws { BusinessError } 6600109 - The remote connection is not established
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @since 10
+     */
+    stopCasting(callback: AsyncCallback<void>): void;
+
+    /**
+     * Stop current cast and disconnect device connection.
+     * @returns { Promise<void> } void result promise when executed successfully 
+     * @throws { BusinessError } 6600109 - The remote connection is not established
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @since 10
+     */
+    /**
+     * Stop current cast and disconnect device connection.
+     * @returns { Promise<void> } void result promise when executed successfully 
+     * @throws { BusinessError } 6600109 - The remote connection is not established
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 12
+     */
+    stopCasting(): Promise<void>;
+
+    /**
+     * Activate the session, indicating that the session can accept control commands
+     * @param { AsyncCallback<void> } callback - The asyncCallback triggered when the session is activated.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    activate(callback: AsyncCallback<void>): void;
+
+    /**
+     * Activate the session, indicating that the session can accept control commands
+     * @returns { Promise<void> } void result promise when executed successfully 
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Activate the session, indicating that the session can accept control commands
+     * @returns { Promise<void> } void result promise when executed successfully 
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    activate(): Promise<void>;
+
+    /**
+     * Deactivate the session, indicating that the session not ready to accept control commands
+     * @param { AsyncCallback<void> } callback - The asyncCallback triggered when the session is deactivated.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    deactivate(callback: AsyncCallback<void>): void;
+
+    /**
+     * Deactivate the session, indicating that the session not ready to accept control commands
+     * @returns { Promise<void> } void promise when executed successfully
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Deactivate the session, indicating that the session not ready to accept control commands
+     * @returns { Promise<void> } void promise when executed successfully
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    deactivate(): Promise<void>;
+
+    /**
+     * Destroy this session, the server will clean up the session resources
+     * @param { AsyncCallback<void> } callback - The asyncCallback triggered when the command is executed successfully
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    destroy(callback: AsyncCallback<void>): void;
+
+    /**
+     * Destroy this session, the server will clean up the session resources
+     * @returns { Promise<void> } void promise when executed successfully
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Destroy this session, the server will clean up the session resources
+     * @returns { Promise<void> } void promise when executed successfully
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    destroy(): Promise<void>;
+  }
+
+  /**
+   * The type of control command
+   * @typedef { 'play' | 'pause' | 'stop' | 'playNext' | 'playPrevious' | 'fastForward' | 'rewind' | 'seek' |
+   *     'setVolume' | 'setSpeed' | 'setLoopMode' | 'toggleFavorite' | 'toggleMute' } AVCastControlCommandType
+   * @syscap SystemCapability.Multimedia.AVSession.AVCast
+   * @since 10
+   */
+  /**
+   * The type of control command
+   * @typedef { 'play' | 'pause' | 'stop' | 'playNext' | 'playPrevious' | 'fastForward' | 'rewind' | 'seek' |
+   *     'setVolume' | 'setSpeed' | 'setLoopMode' | 'toggleFavorite' | 'toggleMute' } AVCastControlCommandType
+   * @syscap SystemCapability.Multimedia.AVSession.AVCast
+   * @atomicservice
+   * @since 12
+   */
+  type AVCastControlCommandType = 'play' | 'pause' | 'stop' | 'playNext' | 'playPrevious' | 'fastForward' | 'rewind' |
+  'seek' | 'setVolume' | 'setSpeed' | 'setLoopMode' | 'toggleFavorite' | 'toggleMute';
+
+  /**
+   * The definition of command to be sent to the session
+   * @interface AVCastControlCommand
+   * @syscap SystemCapability.Multimedia.AVSession.AVCast
+   * @since 10
+   */
+  /**
+   * The definition of command to be sent to the session
+   * @interface AVCastControlCommand
+   * @syscap SystemCapability.Multimedia.AVSession.AVCast
+   * @atomicservice
+   * @since 12
+   */
+  interface AVCastControlCommand {
+    /**
+     * The command value {@link AVCastControlCommandType}
+     * 
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @since 10
+     */
+    /**
+     * The command value {@link AVCastControlCommandType}
+     * @type { AVCastControlCommandType }
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 12
+     */
+    command: AVCastControlCommandType;
+
+    /**
+     * Parameter carried in the command.
+     * The seek command must carry the number parameter.
+     * The setVolume command must carry the number parameter.
+     * The toggleFavorite command must carry the {@link AVMediaDescription.assetId} parameter.
+     * The setSpeed command must carry the {@link #media.PlaybackSpeed} parameter.
+     * The setLoopMode command must carry the {@link LoopMode} parameter.
+     * Other commands do not need to carry parameters.
+     * @type { ?(media.PlaybackSpeed | number | string | LoopMode) }
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @since 10
+     */
+    /**
+     * Parameter carried in the command.
+     * The seek command must carry the number parameter.
+     * The setVolume command must carry the number parameter.
+     * The toggleFavorite command must carry the {@link AVMediaDescription.assetId} parameter.
+     * The setSpeed command must carry the {@link #media.PlaybackSpeed} parameter.
+     * The setLoopMode command must carry the {@link LoopMode} parameter.
+     * Other commands do not need to carry parameters.
+     * @type { ?(media.PlaybackSpeed | number | string | LoopMode) }
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 12
+     */
+    parameter?: media.PlaybackSpeed | number | string | LoopMode;
+  }
+
+  /**
+   * AVCastController definition used to implement a remote control when a cast is connected
+   * @interface AVCastController
+   * @syscap SystemCapability.Multimedia.AVSession.AVCast
+   * @since 10
+   */
+  /**
+   * AVCastController definition used to implement a remote control when a cast is connected
+   * @interface AVCastController
+   * @syscap SystemCapability.Multimedia.AVSession.AVCast
+   * @atomicservice
+   * @since 12
+   */
+  interface AVCastController {
+    /**
+     * Set a surface instance to display playing view, used at sink side.
+     * @param { string } surfaceId - surface id, video player will use this id get a surface instance.
+     * @param { AsyncCallback<void> } callback - A callback instance used to return when set surface completed.
+     * @throws { BusinessError } 202 - Not System App.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Parameter verification failed.
+     * @throws { BusinessError } 6600109 - The remote connection is not established
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @systemapi
+     * @since 10
+     */
+    setDisplaySurface(surfaceId: string, callback: AsyncCallback<void>): void;
+
+    /**
+     * Set a surface instance to display playing view, used at sink side.
+     * @param { string } surfaceId - surface id, video player will use this id get a surface instance.
+     * @returns { Promise<void> } Promise used to return the result.
+     * @throws { BusinessError } 202 - Not System App.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Parameter verification failed.
+     * @throws { BusinessError } 6600109 - The remote connection is not established
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @systemapi
+     * @since 10
+     */
+    setDisplaySurface(surfaceId: string): Promise<void>;
+
+    /**
+     * Get the playback status of the current player
+     * @param { AsyncCallback<AVPlaybackState> } callback - The triggered asyncCallback when (getAVPlaybackState).
+     * @throws { BusinessError } 6600101 - Session service exception
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @since 10
+     */
+    getAVPlaybackState(callback: AsyncCallback<AVPlaybackState>): void;
+
+    /**
+     * Get the playback status of the current player
+     * @returns { Promise<AVPlaybackState> } (AVPlaybackState) returned through promise
+     * @throws { BusinessError } 6600101 - Session service exception
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @since 10
+     */
+    /**
+     * Get the playback status of the current player
+     * @returns { Promise<AVPlaybackState> } (AVPlaybackState) returned through promise
+     * @throws { BusinessError } 6600101 - Session service exception
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 12
+     */
+    getAVPlaybackState(): Promise<AVPlaybackState>;
+
+    /**
+     * Send control commands to remote player
+     * @param { AVCastControlCommand } command The command to be send.
+     * @param { AsyncCallback<void> } callback - The asyncCallback triggered when the command is executed successfully
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Parameter verification failed.
+     * @throws { BusinessError } 6600101 - Session service exception
+     * @throws { BusinessError } 6600105 - Invalid session command
+     * @throws { BusinessError } 6600109 - The remote connection is not established
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @since 10
+     */
+    sendControlCommand(command: AVCastControlCommand, callback: AsyncCallback<void>): void;
+
+    /**
+     * Send control commands to remote player
+     * @param { AVCastControlCommand } command The command to be send.
+     * @returns { Promise<void> } Promise used to return the result.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Parameter verification failed.
+     * @throws { BusinessError } 6600101 - Session service exception
+     * @throws { BusinessError } 6600105 - Invalid session command
+     * @throws { BusinessError } 6600109 - The remote connection is not established
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @since 10
+     */
+     /**
+     * Send control commands to remote player
+     * @param { AVCastControlCommand } command The command to be send.
+     * @returns { Promise<void> } Promise used to return the result.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Parameter verification failed.
+     * @throws { BusinessError } 6600101 - Session service exception
+     * @throws { BusinessError } 6600105 - Invalid session command
+     * @throws { BusinessError } 6600109 - The remote connection is not established
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 12
+     */
+    sendControlCommand(command: AVCastControlCommand): Promise<void>;
+
+    /**
+     * Play the current item, should contain mediaUri otherwise the playback will fail.
+     * @param { AVQueueItem } item media item info.
+     * @param { AsyncCallback<void> } callback - The asyncCallback triggered when the command is executed successfully
+     * @throws {BusinessError} 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Parameter verification failed.
+     * @throws {BusinessError} 6600101 - Session service exception
+     * @throws {BusinessError} 6600109 - The remote connection is not established
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @since 10
+     */
+    start(item: AVQueueItem, callback: AsyncCallback<void>): void;
+
+    /**
+     * Play the current item, should contain mediaUri otherwise the playback will fail.
+     * @param { AVQueueItem } item media item info.
+     * @returns { Promise<void> } Promise used to return the result.
+     * @throws {BusinessError} 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Parameter verification failed.
+     * @throws {BusinessError} 6600101 - Session service exception
+     * @throws {BusinessError} 6600109 - The remote connection is not established
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @since 10
+     */
+    /**
+     * Play the current item, should contain mediaUri otherwise the playback will fail.
+     * @param { AVQueueItem } item media item info.
+     * @returns { Promise<void> } Promise used to return the result.
+     * @throws {BusinessError} 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Parameter verification failed.
+     * @throws {BusinessError} 6600101 - Session service exception
+     * @throws {BusinessError} 6600109 - The remote connection is not established
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 12
+     */
+    start(item: AVQueueItem): Promise<void>;
+
+    /**
+     * Load the current item and mediaUri can be null, this is needed for sink media information displaying
+     * @param { AVQueueItem } item media item info.
+     * @param { AsyncCallback<void> } callback - The asyncCallback triggered when the command is executed successfully
+     * @throws {BusinessError} 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Parameter verification failed.
+     * @throws {BusinessError} 6600101 - Session service exception
+     * @throws {BusinessError} 6600109 - The remote connection is not established
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @since 10
+     */
+    prepare(item: AVQueueItem, callback: AsyncCallback<void>): void;
+
+    /**
+     * Load the current item and mediaUri can be null, this is needed for sink media information displaying
+     * @param { AVQueueItem } item media item info.
+     * @returns { Promise<void> } Promise used to return the result.
+     * @throws {BusinessError} 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Parameter verification failed.
+     * @throws {BusinessError} 6600101 - Session service exception
+     * @throws {BusinessError} 6600109 - The remote connection is not established
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @since 10
+     */
+    /**
+     * Load the current item and mediaUri can be null, this is needed for sink media information displaying
+     * @param { AVQueueItem } item media item info.
+     * @returns { Promise<void> } Promise used to return the result.
+     * @throws {BusinessError} 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Parameter verification failed.
+     * @throws {BusinessError} 6600101 - Session service exception
+     * @throws {BusinessError} 6600109 - The remote connection is not established
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 12
+     */
+    prepare(item: AVQueueItem): Promise<void>;
+
+    /**
+     * Get the current playing item
+     * @param { AsyncCallback<AVQueueItem> } callback - The triggered asyncCallback.
+     * @throws { BusinessError } 6600101 - Session service exception
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @since 10
+     */
+    getCurrentItem(callback: AsyncCallback<AVQueueItem>): void;
+
+    /**
+     * Get the current playing item
+     * @returns { Promise<AVQueueItem> } (AVQueueItem) returned through promise
+     * @throws { BusinessError } 6600101 - Session service exception
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @since 10
+     */
+    /**
+     * Get the current playing item
+     * @returns { Promise<AVQueueItem> } (AVQueueItem) returned through promise
+     * @throws { BusinessError } 6600101 - Session service exception
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 12
+     */
+    getCurrentItem(): Promise<AVQueueItem>;
+
+    /**
+     * Get commands supported by the current cast controller
+     * @param { AsyncCallback<Array<AVCastControlCommandType>> } callback - The triggered asyncCallback when (getValidCommands).
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @since 11
+     */
+    getValidCommands(callback: AsyncCallback<Array<AVCastControlCommandType>>): void;
+
+    /**
+     * Get commands supported by the current cast controller
+     * @returns { Promise<Array<AVCastControlCommandType>> } array of AVCastControlCommandType promise
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @since 11
+     */
+    getValidCommands(): Promise<Array<AVCastControlCommandType>>;
+
+    /**
+     * Process the response corresponding to the media key request obtained by the application.
+     * @param { string } assetId - The assetId of resource which provides the response.
+     * @param { Uint8Array } response - Response corresponding to the request.
+     * @returns { Promise<void> } void promise when executed successfully
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Parameter verification failed.
+     * @throws { BusinessError } 6600101 - Session service exception
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 12
+     */
+    processMediaKeyResponse(assetId: string, response: Uint8Array): Promise<void>;
+
+    /**
+     * Destroy the controller
+     * @param { AsyncCallback<void> } callback - The asyncCallback triggered when the command is executed successfully.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @since 11
+     */
+    release(callback: AsyncCallback<void>): void;
+
+    /**
+     * Destroy the controller
+     * @returns { Promise<void> } void promise when executed successfully
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @since 11
+     */
+    /**
+     * Destroy the controller
+     * @returns { Promise<void> } void promise when executed successfully
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 12
+     */
+    release(): Promise<void>;
+
+    /**
+     * Register playback state changed callback
+     * @param { 'playbackStateChange' } type
+     * @param { Array<keyof AVPlaybackState> | 'all' } filter - The properties of {@link AVPlaybackState} that you cared about
+     * @param { function } callback - The callback used to handle playback state changed event.
+     * The callback function provides the {@link AVPlaybackState} parameter.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @since 10
+     */
+    /**
+     * Register playback state changed callback
+     * @param { 'playbackStateChange' } type
+     * @param { Array<keyof AVPlaybackState> | 'all' } filter - The properties of {@link AVPlaybackState} that you cared about
+     * @param { function } callback - The callback used to handle playback state changed event.
+     * The callback function provides the {@link AVPlaybackState} parameter.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 12
+     */
+    on(type: 'playbackStateChange', filter: Array<AVPlaybackState> | 'all', callback: (state: AVPlaybackState) => void): void;
+
+    /**
+     * Unregister playback state changed callback
+     * @param { 'playbackStateChange' } type
+     * @param { function } callback - The callback used to handle playback state changed event.
+     * The callback function provides the {@link AVPlaybackState} parameter.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @since 10
+     */
+    /**
+     * Unregister playback state changed callback
+     * @param { 'playbackStateChange' } type
+     * @param { function } callback - The callback used to handle playback state changed event.
+     * The callback function provides the {@link AVPlaybackState} parameter.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 12
+     */
+    off(type: 'playbackStateChange', callback?: (state: AVPlaybackState) => void): void;
+
+    /**
+     * Register listener for current media item playback events.
+     * @param { 'mediaItemChange' } type Type of the playback event to listen for.
+     * @param { Callback<AVQueueItem> } callback Callback used to listen for current item changed.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @since 10
+     */
+    /**
+     * Register listener for current media item playback events.
+     * @param { 'mediaItemChange' } type Type of the playback event to listen for.
+     * @param { Callback<AVQueueItem> } callback Callback used to listen for current item changed.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 12
+     */
+    on(type: 'mediaItemChange', callback: Callback<AVQueueItem>): void;
+
+    /**
+     * Unregister listener for current media item playback events.
+     * @param { 'mediaItemChange' } type Type of the playback event to listen for.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @since 10
+     */
+    /**
+     * Unregister listener for current media item playback events.
+     * @param { 'mediaItemChange' } type Type of the playback event to listen for.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 12
+     */
+    off(type: 'mediaItemChange'): void;
+
+    /**
+     * Register playback command callback sent by remote side or media center.
+     * Application needs update the new media resource when receive these commands by using playItem.
+     * @param { 'playNext' } type - Type of the 'playNext' event to listen for.
+     * @param { Callback<void> } callback - Used to handle 'playNext' command
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @since 10
+     */
+    /**
+     * Register playback command callback sent by remote side or media center.
+     * Application needs update the new media resource when receive these commands by using playItem.
+     * @param { 'playNext' } type - Type of the 'playNext' event to listen for.
+     * @param { Callback<void> } callback - Used to handle 'playNext' command
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 12
+     */
+    on(type: 'playNext', callback: Callback<void>): void;
+
+    /**
+     * Unregister playback command callback sent by remote side or media center.
+     * When canceling the callback, need to update the supported commands list.
+     * @param { 'playNext' } type - Type of the 'playNext' event to listen for.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @since 10
+     */
+    /**
+     * Unregister playback command callback sent by remote side or media center.
+     * When canceling the callback, need to update the supported commands list.
+     * @param { 'playNext' } type - Type of the 'playNext' event to listen for.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 12
+     */
+    off(type: 'playNext'): void;
+
+    /**
+     * Register playback command callback sent by remote side or media center.
+     * Application needs update the new media resource when receive these commands by using playItem.
+     * @param { 'playPrevious' } type - Type of the 'playPrevious' to listen for.
+     * @param { Callback<void> } callback - Used to handle 'playPrevious' command
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @since 10
+     */
+    /**
+     * Register playback command callback sent by remote side or media center.
+     * Application needs update the new media resource when receive these commands by using playItem.
+     * @param { 'playPrevious' } type - Type of the 'playPrevious' to listen for.
+     * @param { Callback<void> } callback - Used to handle 'playPrevious' command
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 12
+     */
+    on(type: 'playPrevious', callback: Callback<void>): void;
+
+    /**
+     * Unregister playback command callback sent by remote side or media center.
+     * When canceling the callback, need to update the supported commands list.
+     * @param { 'playPrevious' } type - Type of the 'playPrevious' to listen for.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @since 10
+     */
+    /**
+     * Unregister playback command callback sent by remote side or media center.
+     * When canceling the callback, need to update the supported commands list.
+     * @param { 'playPrevious' } type - Type of the 'playPrevious' to listen for.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 12
+     */
+    off(type: 'playPrevious'): void;
+
+    /**
+     * Register requested playback command callback sent by remote side or media center.
+     * The AVQueueItem may include the requested assetId, starting position and other configurations.
+     * @param { 'requestPlay' } type - Type of the 'requestPlay' to listen for.
+     * @param { Callback<AVQueueItem> } callback - Used to handle 'requestPlay' command
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @since 11
+     */
+    on(type: 'requestPlay', callback: Callback<AVQueueItem>): void;
+
+    /**
+     * Unregister requested playback command callback sent by remote side or media center.
+     * @param { 'requestPlay' } type - Type of the 'requestPlay' to listen for.
+     * @param { Callback<AVQueueItem> } callback - Used to handle 'requestPlay' command
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @since 11
+     */
+    off(type: 'requestPlay', callback?: Callback<AVQueueItem>): void;
+
+    /**
+     * Register endOfStream state callback.
+     * Application needs update the new media resource when receive these commands by using playItem.
+     * @param { 'endOfStream' } type - Type of the 'endOfStream' to listen for.
+     * @param { Callback<void> } callback - Used to handle 'endOfStream' command
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @since 11
+     */
+    on(type: 'endOfStream', callback: Callback<void>): void;
+
+    /**
+     * Unregister endOfStream state callback.
+     * @param { 'endOfStream' } type - Type of the 'endOfStream' to listen for.
+     * @param { Callback<void> } callback - Used to handle 'endOfStream' command
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @since 11
+     */
+    off(type: 'endOfStream', callback?: Callback<void>): void;
+
+    /**
+     * Register listens for playback events.
+     * @param { 'seekDone' } type - Type of the 'seekDone' to listen for.
+     * @param { Callback<number> } callback - Callback used to listen for the playback seekDone event.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @since 10
+     */
+    /**
+     * Register listens for playback events.
+     * @param { 'seekDone' } type - Type of the 'seekDone' to listen for.
+     * @param { Callback<number> } callback - Callback used to listen for the playback seekDone event.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 12
+     */
+    on(type: 'seekDone', callback: Callback<number>): void;
+
+    /**
+     * Unregister listens for playback events.
+     * @param { 'seekDone' } type - Type of the 'seekDone' to listen for.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @since 10
+     */
+    /**
+     * Unregister listens for playback events.
+     * @param { 'seekDone' } type - Type of the 'seekDone' to listen for.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 12
+     */
+    off(type: string): void;
+
+    /**
+     * Register the valid commands of the casted session changed callback
+     * @param { 'validCommandChange' } type - 'validCommandChange'
+     * @param { Callback<Array<AVCastControlCommandType>> } callback - The callback used to handle the changes.
+     * The callback function provides an array of AVCastControlCommandType.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @since 11
+     */
+    on(type: 'validCommandChange', callback: Callback<Array<AVCastControlCommandType>>);
+
+    /**
+     * Unregister the valid commands of the casted session changed callback
+     * @param { 'validCommandChange' } type - 'validCommandChange'
+     * @param { Callback<Array<AVCastControlCommandType>> } callback - The callback used to handle the changes.
+     * The callback function provides an array of AVCastControlCommandType.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @since 11
+     */
+    off(type: 'validCommandChange', callback?: Callback<Array<AVCastControlCommandType>>);
+
+    /**
+     * Register listener for video size change event, used at remote side.
+     * @param { 'videoSizeChange' } type - Type of the 'videoSizeChange' to listen for.
+     * @param { function } callback - Callback used to return video size.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @since 12
+     */
+    on(type: 'videoSizeChange', callback: (width: number, height: number) => void): void;
+
+    /**
+     * Unregister listener for video size change event, used at remote side.
+     * @param { 'videoSizeChange' } type - Type of the 'videoSizeChange' to listen for.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @since 12
+     */
+    off(type: 'videoSizeChange'): void;
+
+    /**
+     * Register listeners for playback error events.
+     * @param { 'error' } type Type of the 'error' to listen for.
+     * @param { ErrorCallback } callback Callback used to listen for the playback error event.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 5400101 - No memory.
+     * @throws { BusinessError } 5400102 - Operation not allowed.
+     * @throws { BusinessError } 5400103 - I/O error.
+     * @throws { BusinessError } 5400104 - Time out.
+     * @throws { BusinessError } 5400105 - Service died.
+     * @throws { BusinessError } 5400106 - Unsupport format.
+     * @throws { BusinessError } 6600101 - Session service exception
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @since 10
+     */
+    /**
+     * Register listeners for playback error events.
+     * @param { 'error' } type Type of the 'error' to listen for.
+     * @param { ErrorCallback } callback Callback used to listen for the playback error event.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 5400101 - No memory.
+     * @throws { BusinessError } 5400102 - Operation not allowed.
+     * @throws { BusinessError } 5400103 - I/O error.
+     * @throws { BusinessError } 5400104 - Time out.
+     * @throws { BusinessError } 5400105 - Service died.
+     * @throws { BusinessError } 5400106 - Unsupport format.
+     * @throws { BusinessError } 6600101 - Session service exception
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 12
+     */
+    on(type: 'error', callback: ErrorCallback): void;
+
+    /**
+     * Unregister listens for playback error events.
+     * @param { 'error' } type Type of the 'error' to listen for.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 5400101 - No memory.
+     * @throws { BusinessError } 5400102 - Operation not allowed.
+     * @throws { BusinessError } 5400103 - I/O error.
+     * @throws { BusinessError } 5400104 - Time out.
+     * @throws { BusinessError } 5400105 - Service died.
+     * @throws { BusinessError } 5400106 - Unsupport format.
+     * @throws { BusinessError } 6600101 - Session service exception
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @since 10
+     */
+    /**
+     * Unregister listens for playback error events.
+     * @param { 'error' } type Type of the 'error' to listen for.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 5400101 - No memory.
+     * @throws { BusinessError } 5400102 - Operation not allowed.
+     * @throws { BusinessError } 5400103 - I/O error.
+     * @throws { BusinessError } 5400104 - Time out.
+     * @throws { BusinessError } 5400105 - Service died.
+     * @throws { BusinessError } 5400106 - Unsupport format.
+     * @throws { BusinessError } 6600101 - Session service exception
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 12
+     */
+    off(type: 'error'): void;
+
+    /**
+     * Register listeners for cast control generic error events.
+     * @param { 'castControlGenericError' } type Type of the 'castControlGenericError' to listen for.
+     * @param { ErrorCallback } callback Callback used to listen for the cast control error event.
+     * @throws { BusinessError } 401 - Parameter check failed. 1. Mandatory parameters are left unspecified.
+     * 2. Incorrect parameter types.
+     * @throws { BusinessError } 6611000 - The error code for cast control is unspecified.
+     * @throws { BusinessError } 6611001 - An unspecified error occurs in the remote player.
+     * @throws { BusinessError } 6611002 - The playback position falls behind the live window.
+     * @throws { BusinessError } 6611003 - The process of cast control times out.
+     * @throws { BusinessError } 6611004 - The runtime check failed.
+     * @throws { BusinessError } 6611100 - Cross-device data transmission is locked.
+     * @throws { BusinessError } 6611101 - The specified seek mode is not supported.
+     * @throws { BusinessError } 6611102 - The position to seek to is out of the range of the media asset
+     * or the specified seek mode is not supported.
+     * @throws { BusinessError } 6611103 - The specified playback mode is not supported.
+     * @throws { BusinessError } 6611104 - The specified playback speed is not supported.
+     * @throws { BusinessError } 6611105 - The action failed because either the media source device or the media sink device has been revoked.
+     * @throws { BusinessError } 6611106 - The parameter is invalid, for example, the url is illegal to play.
+     * @throws { BusinessError } 6611107 - Allocation of memory failed.
+     * @throws { BusinessError } 6611108 - Operation is not allowed.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    on(type: 'castControlGenericError', callback: ErrorCallback): void;
+
+    /**
+     * Unregister listeners for cast control generic error events.
+     * @param { 'castControlGenericError' } type Type of the 'castControlGenericError' to listen for.
+     * @param { ErrorCallback } callback Callback used to listen for the cast control error event.
+     * @throws { BusinessError } 401 - Parameter check failed. 1. Mandatory parameters are left unspecified.
+     * 2. Incorrect parameter types.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    off(type: 'castControlGenericError', callback?: ErrorCallback): void;
+
+    /**
+     * Register listeners for cast control input/output error events.
+     * @param { 'castControlIoError' } type Type of the 'castControlIoError' to listen for.
+     * @param { ErrorCallback } callback Callback used to listen for the cast control error event.
+     * @throws { BusinessError } 401 - Parameter check failed. 1. Mandatory parameters are left unspecified.
+     * 2. Incorrect parameter types.
+     * @throws { BusinessError } 6612000 - An unspecified input/output error occurs.
+     * @throws { BusinessError } 6612001 - Network connection failure.
+     * @throws { BusinessError } 6612002 - Network timeout.
+     * @throws { BusinessError } 6612003 - Invalid "Content-Type" HTTP header.
+     * @throws { BusinessError } 6612004 - The HTTP server returns an unexpected HTTP response status code.
+     * @throws { BusinessError } 6612005 - The file does not exist.
+     * @throws { BusinessError } 6612006 - No permission is granted to perform the IO operation.
+     * @throws { BusinessError } 6612007 - Access to cleartext HTTP traffic is not allowed by the app's network security configuration.
+     * @throws { BusinessError } 6612008 - Reading data out of the data bound.
+     * @throws { BusinessError } 6612100 - The media does not contain any contents that can be played.
+     * @throws { BusinessError } 6612101 - The media cannot be read, for example, because of dust or scratches.
+     * @throws { BusinessError } 6612102 - This resource is already in use.
+     * @throws { BusinessError } 6612103 - The content using the validity interval has expired.
+     * @throws { BusinessError } 6612104 - Using the requested content to play is not allowed.
+     * @throws { BusinessError } 6612105 - The use of the allowed content cannot be verified.
+     * @throws { BusinessError } 6612106 - The number of times this content has been used as requested has reached the maximum allowed number of uses.
+     * @throws { BusinessError } 6612107 - An error occurs when sending packet from source device to sink device.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    on(type: 'castControlIoError', callback: ErrorCallback): void;
+
+    /**
+     * Unregister listeners for cast control input/output error events.
+     * @param { 'castControlIoError' } type Type of the 'castControlIoError' to listen for.
+     * @param { ErrorCallback } callback Callback used to listen for the cast control error event.
+     * @throws { BusinessError } 401 - Parameter check failed. 1. Mandatory parameters are left unspecified.
+     * 2. Incorrect parameter types.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    off(type: 'castControlIoError', callback?: ErrorCallback): void;
+
+    /**
+     * Register listeners for cast control parsing error events.
+     * @param { 'castControlParsingError' } type Type of the 'castControlParsingError' to listen for.
+     * @param { ErrorCallback } callback Callback used to listen for the cast control error event.
+     * @throws { BusinessError } 401 - Parameter check failed. 1. Mandatory parameters are left unspecified.
+     * 2. Incorrect parameter types.
+     * @throws { BusinessError } 6613000 - Unspecified error related to content parsing.
+     * @throws { BusinessError } 6613001 - Parsing error associated with media container format bit streams.
+     * @throws { BusinessError } 6613002 - Parsing error associated with the media manifest.
+     * @throws { BusinessError } 6613003 - An error occurs when attempting to extract a file with an unsupported media container format
+     * or an unsupported media container feature.
+     * @throws { BusinessError } 6613004 - Unsupported feature in the media manifest.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    on(type: 'castControlParsingError', callback: ErrorCallback): void;
+
+    /**
+     * Unregister listeners for cast control parsing error events.
+     * @param { 'castControlParsingError' } type Type of the 'castControlParsingError' to listen for.
+     * @param { ErrorCallback } callback Callback used to listen for the cast control error event.
+     * @throws { BusinessError } 401 - Parameter check failed. 1. Mandatory parameters are left unspecified.
+     * 2. Incorrect parameter types.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    off(type: 'castControlParsingError', callback?: ErrorCallback): void;
+
+    /**
+     * Register listeners for cast control decoding error events.
+     * @param { 'castControlDecodingError' } type Type of the 'castControlDecodingError' to listen for.
+     * @param { ErrorCallback } callback Callback used to listen for the cast control error event.
+     * @throws { BusinessError } 401 - Parameter check failed. 1. Mandatory parameters are left unspecified.
+     * 2. Incorrect parameter types.
+     * @throws { BusinessError } 6614000 - Unspecified decoding error.
+     * @throws { BusinessError } 6614001 - Decoder initialization failed.
+     * @throws { BusinessError } 6614002 - Decoder query failed.
+     * @throws { BusinessError } 6614003 - Decoding the media samples failed.
+     * @throws { BusinessError } 6614004 - The format of the content to decode exceeds the capabilities of the device.
+     * @throws { BusinessError } 6614005 - The format of the content to decode is not supported.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    on(type: 'castControlDecodingError', callback: ErrorCallback): void;
+
+    /**
+     * Unregister listeners for cast control decoding error events.
+     * @param { 'castControlDecodingError' } type Type of the 'castControlDecodingError' to listen for.
+     * @param { ErrorCallback } callback Callback used to listen for the cast control error event.
+     * @throws { BusinessError } 401 - Parameter check failed. 1. Mandatory parameters are left unspecified.
+     * 2. Incorrect parameter types.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    off(type: 'castControlDecodingError', callback?: ErrorCallback): void;
+
+    /**
+     * Register listeners for cast control audio renderer error error events.
+     * @param { 'castControlAudioRendererError' } type Type of the 'castControlAudioRendererError' to listen for.
+     * @param { ErrorCallback } callback Callback used to listen for the cast control error event.
+     * @throws { BusinessError } 401 - Parameter check failed. 1. Mandatory parameters are left unspecified.
+     * 2. Incorrect parameter types.
+     * @throws { BusinessError } 6615000 - Unspecified errors related to the audio renderer.
+     * @throws { BusinessError } 6615001 - Initializing the audio renderer failed.
+     * @throws { BusinessError } 6615002 - The audio renderer fails to write data.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    on(type: 'castControlAudioRendererError', callback: ErrorCallback): void;
+
+    /**
+     * Unregister listeners for cast control audio renderer error events.
+     * @param { 'castControlAudioRendererError' } type Type of the 'castControlAudioRendererError' to listen for.
+     * @param { ErrorCallback } callback Callback used to listen for the cast control error event.
+     * @throws { BusinessError } 401 - Parameter check failed. 1. Mandatory parameters are left unspecified.
+     * 2. Incorrect parameter types.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    off(type: 'castControlAudioRendererError', callback?: ErrorCallback): void;
+
+    /**
+     * Register listeners for cast control drm error events.
+     * @param { 'castControlDrmError' } type Type of the 'castControlDrmError' to listen for.
+     * @param { ErrorCallback } callback Callback used to listen for the cast control error event.
+     * @throws { BusinessError } 401 - Parameter check failed. 1. Mandatory parameters are left unspecified.
+     * 2. Incorrect parameter types.
+     * @throws { BusinessError } 6616000 - Unspecified error related to DRM.
+     * @throws { BusinessError } 6616001 - The chosen DRM protection scheme is not supported by the device.
+     * @throws { BusinessError } 6616002 - Device provisioning failed.
+     * @throws { BusinessError } 6616003 - The DRM-protected content to play is incompatible.
+     * @throws { BusinessError } 6616004 - Failed to obtain a license.
+     * @throws { BusinessError } 6616005 - The operation is disallowed by the license policy.
+     * @throws { BusinessError } 6616006 - An error occurs in the DRM system.
+     * @throws { BusinessError } 6616007 - The device has revoked DRM privileges.
+     * @throws { BusinessError } 6616008 - The DRM license being loaded into the open DRM session has expired.
+     * @throws { BusinessError } 6616100 - An error occurs when the DRM processes the key response.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    on(type: 'castControlDrmError', callback: ErrorCallback): void;
+
+    /**
+     * Unregister listeners for cast control drm error events.
+     * @param { 'castControlDrmError' } type Type of the 'castControlDrmError' to listen for.
+     * @param { ErrorCallback } callback Callback used to listen for the cast control error event.
+     * @throws { BusinessError } 401 - Parameter check failed. 1. Mandatory parameters are left unspecified.
+     * 2. Incorrect parameter types.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    off(type: 'castControlDrmError', callback?: ErrorCallback): void;
+
+    /**
+     * Register listener for drm key request.
+     * @param { 'keyRequest' } type - Type of the 'keyRequest' to listen for.
+     * @param { KeyRequestCallback } callback - Callback used to request drm key.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 12
+     */
+    on(type: 'keyRequest', callback: KeyRequestCallback): void;
+
+    /**
+     * Unregister listener for drm key request.
+     * @param { 'keyRequest' } type - Type of the 'keyRequest' to listen for.
+     * @param { KeyRequestCallback } callback - Callback used to request drm key.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 12
+     */
+    off(type: 'keyRequest', callback?: KeyRequestCallback): void;
+  }
+
+  /**
+   * The callback of key request.
+   *
+   * @typedef { function } KeyRequestCallback
+   * @param { string } assetId - request key for current assetId
+   * @param { Uint8Array } requestData - media key request data sent to media key server
+   * @syscap SystemCapability.Multimedia.AVSession.AVCast
+   * @atomicservice
+   * @since 12
+   */
+  type KeyRequestCallback = (assetId: string, requestData: Uint8Array) => void;
+
+  /**
+   * Enumerates the cast display states.
+   *
+   * @enum { number }
+   * @syscap SystemCapability.Multimedia.AVSession.ExtendedDisplayCast
+   * @atomicservice
+   * @since 12
+   */
+  enum CastDisplayState {
+    /**
+     * Screen off.
+     *
+     * @syscap SystemCapability.Multimedia.AVSession.ExtendedDisplayCast
+     * @atomicservice
+     * @since 12
+     */
+    STATE_OFF = 1,
+
+    /**
+     * Screen on.
+     *
+     * @syscap SystemCapability.Multimedia.AVSession.ExtendedDisplayCast
+     * @atomicservice
+     * @since 12
+     */
+    STATE_ON = 2,
+  }
+
+  /**
+   * Define the information for extended display screen.
+   * @typedef CastDisplayInfo
+   * @syscap SystemCapability.Multimedia.AVSession.ExtendedDisplayCast
+   * @atomicservice
+   * @since 12
+   */
+  interface CastDisplayInfo {
+    /**
+     * Display ID.
+     * The application can get more display information based on the same id from display interface.
+     * @type { number }
+     * @syscap SystemCapability.Multimedia.AVSession.ExtendedDisplayCast
+     * @atomicservice
+     * @since 12
+     */
+    id: number;
+
+    /**
+     * Display name.
+     * @type { string }
+     * @syscap SystemCapability.Multimedia.AVSession.ExtendedDisplayCast
+     * @atomicservice
+     * @since 12
+     */
+    name: string;
+
+    /**
+     * The state of display.
+     * @type { CastDisplayState }
+     * @syscap SystemCapability.Multimedia.AVSession.ExtendedDisplayCast
+     * @atomicservice
+     * @since 12
+     */
+    state: CastDisplayState;
+
+    /**
+     * Display width, in pixels.
+     * @type { number }
+     * @syscap SystemCapability.Multimedia.AVSession.ExtendedDisplayCast
+     * @atomicservice
+     * @since 12
+     */
+    width: number;
+
+    /**
+     * Display height, in pixels.
+     * @type { number }
+     * @syscap SystemCapability.Multimedia.AVSession.ExtendedDisplayCast
+     * @atomicservice
+     * @since 12
+     */
+    height: number;
+  }
+
+  /**
+   * Define the device connection state.
+   * @enum { number }
+   * @syscap SystemCapability.Multimedia.AVSession.Core
+   * @since 10
+   */
+  /**
+   * Define the device connection state.
+   * @enum { number }
+   * @syscap SystemCapability.Multimedia.AVSession.Core
+   * @atomicservice
+   * @since 12
+   */
+  enum ConnectionState {
+    /**
+     * A connection state indicating the device is in the process of connecting.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * A connection state indicating the device is in the process of connecting.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    STATE_CONNECTING = 0,
+
+    /**
+     * A connection state indicating the device is connected.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * A connection state indicating the device is connected.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    STATE_CONNECTED = 1,
+
+    /**
+     * The default connection state indicating the device is disconnected.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * The default connection state indicating the device is disconnected.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    STATE_DISCONNECTED = 6,
+  }
+
+  /**
+   * The pre-defined display tag by system.
+   * @enum { number }
+   * @syscap SystemCapability.Multimedia.AVSession.Core
+   * @since 11
+   */
+  enum DisplayTag {
+    /**
+     * Indicate the AUDIO VIVID property of current media resource.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 11
+     */
+    TAG_AUDIO_VIVID = 1,
+  }
+
+  /**
+   * The play list information definition.
+   * @interface AVQueueInfo
+   * @syscap SystemCapability.Multimedia.AVSession.Core
+   * @systemapi
+   * @since 11
+   */
+  interface AVQueueInfo {
+    /**
+     * The bundle name of application which current play list belongs to.
+     * @type { string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @systemapi
+     * @since 11
+     */
+    bundleName: string;
+
+    /**
+     * The name of play list
+     * @type { string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @systemapi
+     * @since 11
+     */
+    avQueueName: string;
+
+    /**
+     * The id of play list
+     * @type { string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @systemapi
+     * @since 11
+     */
+    avQueueId: string;
+
+    /**
+     * The artwork of play list, can be a {@link PixelMap} or a URI formatted string,
+     * @type { image.PixelMap | string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @systemapi
+     * @since 11
+     */
+    avQueueImage: image.PixelMap | string;
+
+    /**
+     * The time when the user last played the playlist.
+     * The time format can be system, such as 1611081385000, it means 2021-01-20 02:36:25.
+     * @type { ?number }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @systemapi
+     * @since 11
+     */
+    lastPlayedTime?: number;
+  }
+
+  /**
+   * The metadata of the current media.Used to set the properties of the current media file
+   * @interface AVMetadata
+   * @syscap SystemCapability.Multimedia.AVSession.Core
+   * @since 10
+   */
+  /**
+   * The metadata of the current media.Used to set the properties of the current media file
+   * @interface AVMetadata
+   * @syscap SystemCapability.Multimedia.AVSession.Core
+   * @atomicservice
+   * @since 12
+   */
+  interface AVMetadata {
+    /**
+     * Unique ID used to represent this media.
+     * @type { string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Unique ID used to represent this media.
+     * @type { string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    assetId: string;
+
+    /**
+     * The title of this media, for display in media center.
+     * @type { ?string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * The title of this media, for display in media center.
+     * @type { ?string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    title?: string;
+
+    /**
+     * The artist of this media
+     * @type { ?string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * The artist of this media
+     * @type { ?string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    artist?: string;
+
+    /**
+     * The author of this media
+     * @type { ?string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * The author of this media
+     * @type { ?string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    author?: string;
+
+    /**
+     * The name of play list which current media belongs to
+     * @type { ?string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 12
+     */
+    avQueueName?: string;
+
+    /**
+     * The id of play list which current media belongs to, it should be an unique identifier in the application.
+     * @type { ?string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 11
+     */
+    avQueueId?: string;
+
+    /**
+     * The artwork of play list as a {@link PixelMap} or an uri formatted String,
+     * @type { ?(image.PixelMap | string) }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 11
+     */
+    avQueueImage?: image.PixelMap | string;
+
+    /**
+     * The album of this media
+     * @type { ?string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * The album of this media
+     * @type { ?string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    album?: string;
+
+    /**
+     * The writer of this media
+     * @type { ?string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * The writer of this media
+     * @type { ?string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    writer?: string;
+
+    /**
+     * The composer of this media
+     * @type { ?string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    composer?: string;
+
+    /**
+     * The duration of this media, used to automatically calculate playback position
+     * @type { ?number }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * The duration of this media, used to automatically calculate playback position
+     * @type { ?number }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    duration?: number;
+
+    /**
+     * The image of the media as a {@link PixelMap} or an uri formatted String,
+     * used to display in media center.
+     * @type { ?(image.PixelMap | string) }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * The image of the media as a {@link PixelMap} or an uri formatted String,
+     * used to display in media center.
+     * @type { ?(image.PixelMap | string) }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    mediaImage?: image.PixelMap | string;
+
+    /**
+     * The publishDate of the media
+     * @type { ?Date }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    publishDate?: Date;
+
+    /**
+     * The subtitle of the media, used for display
+     * @type { ?string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * The subtitle of the media, used for display
+     * @type { ?string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    subtitle?: string;
+
+    /**
+     * The discription of the media, used for display
+     * @type { ?string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * The discription of the media, used for display
+     * @type { ?string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    description?: string;
+
+    /**
+     * The lyric of the media, it should be in standard lyric format
+     * @type { ?string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    lyric?: string;
+
+    /**
+     * The previous playable media id.
+     * Used to tell the controller if there is a previous playable media
+     * @type { ?string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * The previous playable media id.
+     * Used to tell the controller if there is a previous playable media
+     * @type { ?string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    previousAssetId?: string;
+
+    /**
+     * The next playable media id.
+     * Used to tell the controller if there is a next playable media
+     * @type { ?string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * The next playable media id.
+     * Used to tell the controller if there is a next playable media
+     * @type { ?string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    nextAssetId?: string;
+
+    /**
+     * The protocols supported by this session, if not set, the default is {@link TYPE_CAST_PLUS_STREAM}.
+     * See {@link ProtocolType}
+     * @type { ?number }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 11
+     */
+    /**
+     * The protocols supported by this session, if not set, the default is {@link TYPE_CAST_PLUS_STREAM}.
+     * See {@link ProtocolType}
+     * @type { ?number }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    filter?: number;
+
+    /**
+     * The drm schemes supported by this session which are represented by uuid.
+     * @type { ?Array<string> }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 12
+     */
+    drmSchemes?: Array<string>;
+
+    /**
+     * The supported skipIntervals when doing fast forward and rewind operation, the default is {@link SECONDS_15}.
+     * See {@link SkipIntervals}
+     * @type { ?SkipIntervals }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 11
+     */
+    skipIntervals?: SkipIntervals;
+
+    /**
+     * The display tags supported by application to be displayed on media center
+     * @type { ?number }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 11
+     */
+    displayTags?: number;
+  }
+
+  /**
+   * The description of the media for an item in the playlist of the session
+   * @interface AVMediaDescription
+   * @syscap SystemCapability.Multimedia.AVSession.Core
+   * @since 10
+   */
+  /**
+   * The description of the media for an item in the playlist of the session
+   * @interface AVMediaDescription
+   * @syscap SystemCapability.Multimedia.AVSession.Core
+   * @atomicservice
+   * @since 12
+   */
+  interface AVMediaDescription {
+    /**
+     * Unique ID used to represent this media.
+     * @type { string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Unique ID used to represent this media.
+     * @type { string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    assetId: string;
+    /**
+     * The title of this media, for display in media center.
+     * @type { ?string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * The title of this media, for display in media center.
+     * @type { ?string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    title?: string;
+
+    /**
+     * The subtitle of the media, used for display
+     * @type { ?string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * The subtitle of the media, used for display
+     * @type { ?string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    subtitle?: string;
+
+    /**
+     * The description of this media
+     * @type { ?string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * The description of this media
+     * @type { ?string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    description?: string;
+
+    /**
+     * The image of this media asset displayed in the media center.
+     * It can be a {@link PixelMap} or a URI formatted string,
+     * @type { ?(image.PixelMap | string) }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * The image of this media asset displayed in the media center.
+     * It can be a {@link PixelMap} or a URI formatted string,
+     * @type { ?(image.PixelMap | string) }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    mediaImage?: image.PixelMap | string;
+    /**
+     * Any additional attributes that can be represented as key-value pairs
+     * @type { ?object }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    extras?: AVSessionStringBindObject;
+
+    /**
+     * The type of this media, such as video, audio and so on.
+     * @type { ?string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * The type of this media, such as video, audio and so on.
+     * @type { ?string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    mediaType?: string;
+
+    /**
+     * The size of this media.
+     * @type { ?number }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * The size of this media.
+     * @type { ?number }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    mediaSize?: number;
+
+    /**
+     * The album title of this media
+     * @type { ?string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * The album title of this media
+     * @type { ?string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    albumTitle?: string;
+
+    /**
+     * The album cover uri of this media
+     * @type { ?string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * The album cover uri of this media
+     * @type { ?string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    albumCoverUri?: string;
+
+    /**
+     * The lyric content of the media, it should be in standard lyric format
+     * @type { ?string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * The lyric content of the media, it should be in standard lyric format
+     * @type { ?string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    lyricContent?: string;
+
+    /**
+     * The lyric uri of the media.
+     * @type { ?string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * The lyric uri of the media.
+     * @type { ?string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    lyricUri?: string;
+
+    /**
+     * The artist of this media.
+     * @type { ?string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * The artist of this media.
+     * @type { ?string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    artist?: string;
+
+    /**
+     * The uri of the media, used to locate the media in some special cases
+     * @type { ?string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * The uri of the media, used to locate the media in some special cases
+     * @type { ?string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    mediaUri?: string;
+
+    /**
+     * Media file descriptor.
+     * @type { ?media.AVFileDescriptor }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Media file descriptor.
+     * @type { ?media.AVFileDescriptor }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    fdSrc?: media.AVFileDescriptor;
+
+    /**
+     * DataSource descriptor. The caller ensures the fileSize and callback are valid.
+     * @type { ?media.AVDataSrcDescriptor }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 12
+     */
+    dataSrc?: media.AVDataSrcDescriptor;
+
+    /**
+     * The drm scheme supported by this resource which is represented by uuid.
+     * @type { ?string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 12
+     */
+    drmScheme?: string;
+
+    /**
+     * The duration of this media
+     * @type { ?number }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * The duration of this media
+     * @type { ?number }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    duration?: number;
+
+    /**
+     * Media start position, described by milliseconds.
+     * @type { ?number }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Media start position, described by milliseconds.
+     * @type { ?number }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    startPosition?: number;
+
+    /**
+     * Media credits position, described by milliseconds.
+     * @type { ?number }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Media credits position, described by milliseconds.
+     * @type { ?number }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    creditsPosition?: number;
+
+    /**
+     * Application name.
+     * @type { ?string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Application name.
+     * @type { ?string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    appName?: string;
+
+    /**
+     * The display tags supported by application to be displayed on media center
+     * @type { ?number }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 11
+     */
+    /**
+     * The display tags supported by application to be displayed on media center
+     * @type { ?number }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    displayTags?: number;
+  }
+
+  /**
+   * The item in the playlist of the session
+   * @interface AVQueueItem
+   * @syscap SystemCapability.Multimedia.AVSession.Core
+   * @since 10
+   */
+  /**
+   * The item in the playlist of the session
+   * @interface AVQueueItem
+   * @syscap SystemCapability.Multimedia.AVSession.Core
+   * @atomicservice
+   * @since 12
+   */
+  interface AVQueueItem {
+    /**
+     * Sequence number of the item in the playlist.
+     * @type { number }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Sequence number of the item in the playlist.
+     * @type { number }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    itemId: number;
+
+    /**
+     * The media description of the item in the playlist.
+     * @type { ?AVMediaDescription }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * The media description of the item in the playlist.
+     * @type { ?AVMediaDescription }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    description?: AVMediaDescription;
+  }
+
+  /**
+   * Used to indicate the playback state of the current media.
+   * If the playback state of the media changes, it needs to be updated synchronously
+   * @interface AVPlaybackState
+   * @syscap SystemCapability.Multimedia.AVSession.Core
+   * @since 10
+   */
+  /**
+   * Used to indicate the playback state of the current media.
+   * If the playback state of the media changes, it needs to be updated synchronously
+   * @interface AVPlaybackState
+   * @syscap SystemCapability.Multimedia.AVSession.Core
+   * @atomicservice
+   * @since 12
+   */
+  interface AVPlaybackState {
+    /**
+     * Current playback state. See {@link PlaybackState}
+     * @type { ?PlaybackState }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Current playback state. See {@link PlaybackState}
+     * @type { ?PlaybackState }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    state?: PlaybackState;
+
+    /**
+     * Current playback speed
+     * @type { ?number }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Current playback speed
+     * @type { ?number }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    speed?: number;
+
+    /**
+     * Current playback position of this media. See {@link PlaybackPosition}
+     * @type { ?PlaybackPosition }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Current playback position of this media. See {@link PlaybackPosition}
+     * @type { ?PlaybackPosition }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    position?: PlaybackPosition;
+
+    /**
+     * The current buffered time, the maximum playable position
+     * @type { ?number }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * The current buffered time, the maximum playable position
+     * @type { ?number }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    bufferedTime?: number;
+
+    /**
+     * Current playback loop mode. See {@link LoopMode}
+     * @type { ?LoopMode }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Current playback loop mode. See {@link LoopMode}
+     * @type { ?LoopMode }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    loopMode?: LoopMode;
+
+    /**
+     * Current Favorite Status
+     * @type { ?boolean }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Current Favorite Status
+     * @type { ?boolean }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    isFavorite?: boolean;
+
+    /**
+     * Current active item id
+     * @type { ?number }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Current active item id
+     * @type { ?number }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    activeItemId?: number;
+
+    /**
+     * Current player volume
+     * @type { ?number }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Current player volume
+     * @type { ?number }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    volume?: number;
+
+    /**
+     * maximum  volume
+     * @type { ?number }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 11
+     */
+    /**
+     * maximum  volume
+     * @type { ?number }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    maxVolume?: number;
+
+    /**
+     * Current muted status
+     * @type { ?boolean }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 11
+     */
+    /**
+     * Current muted status
+     * @type { ?boolean }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    muted?: boolean;
+
+    /**
+     * The duration of this media asset.
+     * @type { ?number }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 11
+     */
+    duration?: number;
+
+    /**
+     * The video width of this media asset.
+     * @type { ?number }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 11
+     */
+    /**
+     * The video width of this media asset.
+     * @type { ?number }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    videoWidth?: number;
+
+    /**
+     * The video height of this media asset.
+     * @type { ?number }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 11
+     */
+    /**
+     * The video height of this media asset.
+     * @type { ?number }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    videoHeight?: number;
+
+    /**
+     * Current custom media packets
+     * @type { ?object }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Current custom media packets
+     * @type { ?object }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    extras?: AVSessionStringBindObject;
+  }
+
+  /**
+   * Playback position definition
+   * @interface PlaybackPosition
+   * @syscap SystemCapability.Multimedia.AVSession.Core
+   * @since 10
+   */
+  /**
+   * Playback position definition
+   * @interface PlaybackPosition
+   * @syscap SystemCapability.Multimedia.AVSession.Core
+   * @atomicservice
+   * @since 12
+   */
+  interface PlaybackPosition {
+    /**
+     * Elapsed time(position) of this media set by the app.
+     * @type { number }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Elapsed time(position) of this media set by the app.
+     * @type { number }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    elapsedTime: number;
+
+    /**
+     * Record the system time when elapsedTime is set.
+     * @type { number }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Record the system time when elapsedTime is set.
+     * @type { number }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    updateTime: number;
+  }
+
+  /**
+   * The metadata of the current call.
+   * @interface CallMetadata
+   * @syscap SystemCapability.Multimedia.AVSession.Core
+   * @since 11
+   */
+  /**
+   * The metadata of the current call.
+   * @typedef CallMetadata
+   * @syscap SystemCapability.Multimedia.AVSession.Core
+   * @atomicservice
+   * @since 12
+   */
+  interface CallMetadata {
+    /**
+     * The displayed user name of current call.
+     * @type { ?string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 11
+     */
+    /**
+     * The displayed user name of current call.
+     * @type { ?string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    name?: string;
+
+    /**
+     * The phone number of current call.
+     * @type { ?string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 11
+     */
+    /**
+     * The phone number of current call.
+     * @type { ?string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    phoneNumber?: string;
+
+    /**
+     * The displayed picture that represents a particular user.
+     * @type { ?image.PixelMap }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 11
+     */
+    /**
+     * The displayed picture that represents a particular user.
+     * @type { ?image.PixelMap }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    avatar?: image.PixelMap;
+  }
+
+  /**
+   * Used to indicate the call state of the current call.
+   * @interface AVCallState
+   * @syscap SystemCapability.Multimedia.AVSession.Core
+   * @since 11
+   */
+  /**
+   * Used to indicate the call state of the current call.
+   * @typedef AVCallState
+   * @syscap SystemCapability.Multimedia.AVSession.Core
+   * @atomicservice
+   * @since 12
+   */
+  interface AVCallState {
+    /**
+     * Current call state. See {@link CallState}
+     * @type { CallState }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 11
+     */
+    /**
+     * Current call state. See {@link CallState}
+     * @type { CallState }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    state: CallState;
+
+    /**
+     * Current muted status.
+     * @type { boolean }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 11
+     */
+    /**
+     * Current muted status.
+     * @type { boolean }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    muted: boolean;
+  }
+
+  /**
+   * Enumeration of current call state
+   * @enum { number }
+   * @syscap SystemCapability.Multimedia.AVSession.Core
+   * @since 11
+   */
+  /**
+   * Enumeration of current call state
+   * @enum { number }
+   * @syscap SystemCapability.Multimedia.AVSession.Core
+   * @atomicservice
+   * @since 12
+   */
+  enum CallState {
+    /**
+     * Idle state.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 11
+     */
+    /**
+     * Idle state.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    CALL_STATE_IDLE = 0,
+
+    /**
+     * Incoming state.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 11
+     */
+    /**
+     * Incoming state.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    CALL_STATE_INCOMING = 1,
+
+    /**
+     * Active state in calling.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 11
+     */
+    /**
+     * Active state in calling.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    CALL_STATE_ACTIVE = 2,
+
+    /**
+     * Dialing state.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 11
+     */
+    /**
+     * Dialing state.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    CALL_STATE_DIALING = 3,
+
+    /**
+     * Waiting state.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 11
+     */
+    /**
+     * Waiting state.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    CALL_STATE_WAITING = 4,
+
+    /**
+     * Holding state.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 11
+     */
+    /**
+     * Holding state.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    CALL_STATE_HOLDING = 5,
+
+    /**
+     * Disconnecting state.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 11
+     */
+    /**
+     * Disconnecting state.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    CALL_STATE_DISCONNECTING = 6,
+  }
+
+  /**
+   * cast category indicating different playback scenes
+   * @enum { number }
+   * @syscap SystemCapability.Multimedia.AVSession.AVCast
+   * @since 10
+   */
+  /**
+   * cast category indicating different playback scenes
+   * @enum { number }
+   * @syscap SystemCapability.Multimedia.AVSession.AVCast
+   * @atomicservice
+   * @since 12
+   */
+  enum AVCastCategory {
+    /**
+     * The default cast type "local", media can be routed on the same device, 
+     * including internal speakers or audio jack on the device itself, A2DP devices.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @since 10
+     */
+    /**
+     * The default cast type "local", media can be routed on the same device, 
+     * including internal speakers or audio jack on the device itself, A2DP devices.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 12
+     */
+    CATEGORY_LOCAL = 0,
+
+    /**
+     * The remote category indicating the media is presenting on a remote device,
+     * the application needs to get an AVCastController to control remote playback.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @since 10
+     */
+    /**
+     * The remote category indicating the media is presenting on a remote device,
+     * the application needs to get an AVCastController to control remote playback.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 12
+     */
+    CATEGORY_REMOTE = 1,
+  }
+  /**
+   * Device type definition
+   * @enum { number }
+   * @syscap SystemCapability.Multimedia.AVSession.Core
+   * @since 10
+   */
+  /**
+   * Device type definition
+   * @enum { number }
+   * @syscap SystemCapability.Multimedia.AVSession.Core
+   * @atomicservice
+   * @since 12
+   */
+  enum DeviceType {
+    /**
+     * A device type indicating the route is on internal speakers or audio jack on the device itself.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * A device type indicating the route is on internal speakers or audio jack on the device itself.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    DEVICE_TYPE_LOCAL = 0,
+
+    /**
+     * A device type indicating the route is on a TV.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @since 10
+     */
+    /**
+     * A device type indicating the route is on a TV.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 12
+     */
+    DEVICE_TYPE_TV = 2,
+
+    /**
+     * A device type indicating the route is on a smart speaker.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @since 10
+     */
+    /**
+     * A device type indicating the route is on a smart speaker.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 12
+     */
+    DEVICE_TYPE_SMART_SPEAKER = 3,
+
+    /**
+     * A device type indicating the route is on a bluetooth device.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * A device type indicating the route is on a bluetooth device.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    DEVICE_TYPE_BLUETOOTH = 10,
+  }
+
+  /**
+   * Device Information Definition
+   * @interface DeviceInfo
+   * @syscap SystemCapability.Multimedia.AVSession.Core
+   * @since 10
+   */
+  /**
+   * Device Information Definition
+   * @interface DeviceInfo
+   * @syscap SystemCapability.Multimedia.AVSession.Core
+   * @atomicservice
+   * @since 12
+   */
+  interface DeviceInfo {
+    /**
+     * The playback type supported by the device. See {@link AVCastCategory}
+     * @type { AVCastCategory }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * The playback type supported by the device. See {@link AVCastCategory}
+     * @type { AVCastCategory }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    castCategory: AVCastCategory;
+    /**
+     * Audio device id.The length of the audioDeviceId array is greater than 1
+     * if output to multiple devices at the same time.
+     * @type { string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Audio device id.The length of the audioDeviceId array is greater than 1
+     * if output to multiple devices at the same time.
+     * @type { string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    deviceId: string;
+
+    /**
+     * Device name. The length of the deviceName array is greater than 1
+     * if output to multiple devices at the same time.
+     * @type { string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Device name. The length of the deviceName array is greater than 1
+     * if output to multiple devices at the same time.
+     * @type { string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    deviceName: string;
+
+    /**
+     * device type.
+     * @type { DeviceType }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * device type.
+     * @type { DeviceType }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    deviceType: DeviceType;
+
+    /**
+     * Device manufacturer.
+     * @type { ?string }
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    manufacturer?: string;
+
+    /**
+     * Device model name.
+     * @type { ?string }
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    modelName?: string;
+
+    /**
+     * Network id.
+     * @type { ?string }
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @systemapi
+     * @since 13
+     */
+    networkId?: string;
+
+    /**
+     * device ip address if available.
+     * @type { ?string }
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @systemapi
+     * @since 10
+     */
+    ipAddress?: string;
+
+    /**
+     * device provider which supplies the route capability.
+     * @type { ?number }
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @systemapi
+     * @since 10
+     */
+    providerId?: number;
+
+    /**
+     * The protocols supported by current device, can be union of {@link ProtocolType}.
+     * @type { ?number }
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @since 11
+     */
+    /**
+     * The protocols supported by current device, can be union of {@link ProtocolType}.
+     * @type { ?number }
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 12
+     */
+    supportedProtocols?: number;
+
+    /**
+     * The drm capability supported by current device, each drm is represented by uuid.
+     * @type { ?Array<string> }
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 12
+     */
+    supportedDrmCapabilities?: Array<string>;
+
+    /**
+     * Define different authentication status.
+     * 0: Device not authenticated.
+     * 1: Device already authenticated.
+     * @type { ?number }
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @systemapi
+     * @since 11
+     */
+    authenticationStatus?: number;
+
+    /**
+     * Indicates the current device is legacy or not.
+     * @type { ?boolean }
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @systemapi
+     * @since 13
+     */
+    isLegacy?: boolean;
+
+    /**
+     * Medium types used to discover devices.
+     * 1: BLE
+     * 2: COAP
+     * @type { ?number }
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @systemapi
+     * @since 13
+     */
+    mediumTypes?: number;
+  }
+
+  /**
+   * Target Device Information Definition
+   * @interface OutputDeviceInfo
+   * @syscap SystemCapability.Multimedia.AVSession.Core
+   * @since 10
+   */
+  /**
+   * Target Device Information Definition
+   * @interface OutputDeviceInfo
+   * @syscap SystemCapability.Multimedia.AVSession.Core
+   * @atomicservice
+   * @since 12
+   */
+  interface OutputDeviceInfo {
+    /**
+     * Arrays of device information
+     * @type { Array<DeviceInfo> }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Arrays of device information
+     * @type { Array<DeviceInfo> }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    devices: Array<DeviceInfo>;
+  }
+
+  /**
+   * Loop Play Mode Definition
+   * @enum { number }
+   * @syscap SystemCapability.Multimedia.AVSession.Core
+   * @since 10
+   */
+  /**
+   * Loop Play Mode Definition
+   * @enum { number }
+   * @syscap SystemCapability.Multimedia.AVSession.Core
+   * @atomicservice
+   * @since 12
+   */
+  enum LoopMode {
+    /**
+     * The default mode is sequential playback
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * The default mode is sequential playback
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    LOOP_MODE_SEQUENCE = 0,
+
+    /**
+     * Single loop mode
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Single loop mode
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    LOOP_MODE_SINGLE = 1,
+
+    /**
+     * List loop mode
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * List loop mode
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    LOOP_MODE_LIST = 2,
+
+    /**
+     * Shuffle playback mode
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Shuffle playback mode
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    LOOP_MODE_SHUFFLE = 3,
+
+    /**
+     * Custom playback mode supported by application
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 11
+     */
+    /**
+     * Custom playback mode supported by application
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    LOOP_MODE_CUSTOM = 4,
+  }
+
+  /**
+   * Supported skip intervals definition
+   * @enum { number }
+   * @syscap SystemCapability.Multimedia.AVSession.Core
+   * @since 11
+   */
+  enum SkipIntervals {
+    /**
+     * 10 seconds
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 11
+     */
+    SECONDS_10 = 10,
+    /**
+     * 15 seconds
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 11
+     */
+    SECONDS_15 = 15,
+    /**
+     * 30 seconds
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 11
+     */
+    SECONDS_30 = 30,
+  }
+
+  /**
+   * Definition of current playback state
+   * @enum { number }
+   * @syscap SystemCapability.Multimedia.AVSession.Core
+   * @since 10
+   */
+  /**
+   * Definition of current playback state
+   * @enum { number }
+   * @syscap SystemCapability.Multimedia.AVSession.Core
+   * @atomicservice
+   * @since 12
+   */
+  enum PlaybackState {
+    /**
+     * Initial state. The initial state of media file
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Initial state. The initial state of media file
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    PLAYBACK_STATE_INITIAL = 0,
+
+    /**
+     * Preparing state. Indicates that the media file is not ready to play,
+     * the media is loading or buffering
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Preparing state. Indicates that the media file is not ready to play,
+     * the media is loading or buffering
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    PLAYBACK_STATE_PREPARE = 1,
+
+    /**
+     * Playing state.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Playing state.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    PLAYBACK_STATE_PLAY = 2,
+
+    /**
+     * Paused state.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Paused state.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    PLAYBACK_STATE_PAUSE = 3,
+
+    /**
+     * Fast forwarding state.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Fast forwarding state.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    PLAYBACK_STATE_FAST_FORWARD = 4,
+
+    /**
+     * Rewinding state.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Rewinding state.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    PLAYBACK_STATE_REWIND = 5,
+
+    /**
+     * Stopped state.The server will clear the media playback position and other information.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Stopped state.The server will clear the media playback position and other information.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    PLAYBACK_STATE_STOP = 6,
+
+    /**
+     * Completed state.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Completed state.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    PLAYBACK_STATE_COMPLETED = 7,
+
+    /**
+     * Released state.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Released state.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    PLAYBACK_STATE_RELEASED = 8,
+
+    /**
+     * error state.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * error state.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    PLAYBACK_STATE_ERROR = 9,
+
+    /**
+     * Idle state.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 11
+     */
+    /**
+     * Idle state.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    PLAYBACK_STATE_IDLE = 10,
+
+    /**
+     * Buffering state.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 11
+     */
+    /**
+     * Buffering state.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    PLAYBACK_STATE_BUFFERING = 11,
+  }
+
+  /**
+   * The description of the session
+   * @interface AVSessionDescriptor
+   * @syscap SystemCapability.Multimedia.AVSession.Manager
+   * @systemapi
+   * @since 9
+   */
+  interface AVSessionDescriptor {
+    /**
+     * Unique ID of the session
+     * @type { string }
+     * @syscap SystemCapability.Multimedia.AVSession.Manager
+     * @systemapi
+     * @since 9
+     */
+    sessionId: string;
+
+    /**
+     * Session type, currently supports audio or video
+     * @type { AVSessionType }
+     * @syscap SystemCapability.Multimedia.AVSession.Manager
+     * @systemapi
+     * @since 9
+     */
+    type: AVSessionType;
+
+    /**
+     * The session tag set by the application
+     * @type { string }
+     * @syscap SystemCapability.Multimedia.AVSession.Manager
+     * @systemapi
+     * @since 9
+     */
+    sessionTag: string;
+
+    /**
+     * The elementName of the ability that created this session. See {@link ElementName} in bundle/elementName.d.ts
+     * @type { ElementName }
+     * @syscap SystemCapability.Multimedia.AVSession.Manager
+     * @systemapi
+     * @since 9
+     */
+    elementName: ElementName;
+
+    /**
+     * Session active state
+     * @type { boolean }
+     * @syscap SystemCapability.Multimedia.AVSession.Manager
+     * @systemapi
+     * @since 9
+     */
+    isActive: boolean;
+
+    /**
+     * Is it the top priority session
+     * @type { boolean }
+     * @syscap SystemCapability.Multimedia.AVSession.Manager
+     * @systemapi
+     * @since 9
+     */
+    isTopSession: boolean;
+
+    /**
+     * The current output device information.
+     * It will be undefined if this is a local session.
+     * @type { OutputDeviceInfo }
+     * @syscap SystemCapability.Multimedia.AVSession.Manager
+     * @systemapi
+     * @since 9
+     */
+    outputDevice: OutputDeviceInfo;
+  }
+
+  /**
+   * Session controller,used to control media playback and get media information
+   * @interface AVSessionController
+   * @syscap SystemCapability.Multimedia.AVSession.Core
+   * @since 10
+   */
+  /**
+   * Session controller,used to control media playback and get media information
+   * @typedef AVSessionController
+   * @syscap SystemCapability.Multimedia.AVSession.Core
+   * @atomicservice
+   * @since 12
+   */
+  interface AVSessionController {
+    /**
+     * Unique session Id
+     * @type { string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Unique session Id
+     * @type { string }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    readonly sessionId: string;
+
+    /**
+     * Get the playback status of the current session
+     * @param { AsyncCallback<AVPlaybackState> } callback - The triggered asyncCallback when (getAVPlaybackState).
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    getAVPlaybackState(callback: AsyncCallback<AVPlaybackState>): void;
+
+    /**
+     * Get the playback status of the current session
+     * @returns { Promise<AVPlaybackState> } (AVPlaybackState) returned through promise
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Get the playback status of the current session
+     * @returns { Promise<AVPlaybackState> } (AVPlaybackState) returned through promise
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    getAVPlaybackState(): Promise<AVPlaybackState>;
+
+    /**
+     * Get the playback status of the current session
+     * @returns { AVPlaybackState } (AVPlaybackState) returned
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Get the playback status of the current session
+     * @returns { AVPlaybackState } (AVPlaybackState) returned
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    getAVPlaybackStateSync(): AVPlaybackState;
+
+    /**
+     * Get the metadata of the current session
+     * @param { AsyncCallback<AVMetadata> } callback - The triggered asyncCallback when (getAVMetadata).
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    getAVMetadata(callback: AsyncCallback<AVMetadata>): void;
+
+    /**
+     * Get the metadata of the current session
+     * @returns { Promise<AVMetadata> } (AVMetadata) returned through promise
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Get the metadata of the current session
+     * @returns { Promise<AVMetadata> } (AVMetadata) returned through promise
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    getAVMetadata(): Promise<AVMetadata>;
+
+    /**
+     * Get the metadata of the current session
+     * @returns { AVMetadata } (AVMetadata) returned
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Get the metadata of the current session
+     * @returns { AVMetadata } (AVMetadata) returned
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    getAVMetadataSync(): AVMetadata;
+
+    /**
+     * Get the call status of the current session
+     * @param { AsyncCallback<AVCallState> } callback - The triggered asyncCallback when (getAVCallState).
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 11
+     */
+    getAVCallState(callback: AsyncCallback<AVCallState>): void;
+
+    /**
+     * Get the call status of the current session
+     * @returns { Promise<AVCallState> } (AVCallState) returned through promise
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 11
+     */
+    getAVCallState(): Promise<AVCallState>;
+
+    /**
+     * Get the call metadata of the current session
+     * @param { AsyncCallback<CallMetadata> } callback - The triggered asyncCallback when (getCallMetadata).
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 11
+     */
+    getCallMetadata(callback: AsyncCallback<CallMetadata>): void;
+
+    /**
+     * Get the call metadata of the current session
+     * @returns { Promise<CallMetadata> } (CallMetadata) returned through promise
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 11
+     */
+    getCallMetadata(): Promise<CallMetadata>;
+
+    /**
+     * Get the name of the playlist of the current session
+     * @param { AsyncCallback<string> } callback - The triggered asyncCallback when (getAVQueueTitle).
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    getAVQueueTitle(callback: AsyncCallback<string>): void;
+
+    /**
+     * Get the name of the playlist of the current session
+     * @returns { Promise<string> } (string) returned through promise
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Get the name of the playlist of the current session
+     * @returns { Promise<string> } (string) returned through promise
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    getAVQueueTitle(): Promise<string>;
+
+    /**
+     * Get the name of the playlist of the current session
+     * @returns { string } (string) returned
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Get the name of the playlist of the current session
+     * @returns { string } (string) returned
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    getAVQueueTitleSync(): string;
+
+    /**
+     * Get the playlist of the current session
+     * @param { AsyncCallback<Array<AVQueueItem>> } callback - The triggered asyncCallback when (getAVQueueItems).
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    getAVQueueItems(callback: AsyncCallback<Array<AVQueueItem>>): void;
+
+    /**
+     * Get the playlist of the current session
+     * @returns { Promise<Array<AVQueueItem>> } (Array<AVQueueItem>) returned through promise
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Get the playlist of the current session
+     * @returns { Promise<Array<AVQueueItem>> } (Array<AVQueueItem>) returned through promise
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    getAVQueueItems(): Promise<Array<AVQueueItem>>;
+
+    /**
+     * Get the playlist of the current session
+     * @returns { Array<AVQueueItem> } (Array<AVQueueItem>) returned
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Get the playlist of the current session
+     * @returns { Array<AVQueueItem> } (Array<AVQueueItem>) returned
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    getAVQueueItemsSync(): Array<AVQueueItem>;
+
+    /**
+     * Set the item in the playlist to be played
+     * @param { number } itemId - The serial number of the item to be played
+     * @param { AsyncCallback<void> } callback - The asyncCallback triggered when the command is executed successfully
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Parameter verification failed.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    skipToQueueItem(itemId: number, callback: AsyncCallback<void>): void;
+
+    /**
+     * Set the item in the playlist to be played
+     * @param { number } itemId - The serial number of the item to be played
+     * @returns { Promise<void> } void promise when executed successfully
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Parameter verification failed.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Set the item in the playlist to be played
+     * @param { number } itemId - The serial number of the item to be played
+     * @returns { Promise<void> } void promise when executed successfully
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Parameter verification failed.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    skipToQueueItem(itemId: number): Promise<void>;
+
+    /**
+     * Get output device information
+     * @param { AsyncCallback<OutputDeviceInfo> } callback - The triggered asyncCallback when (getOutputDevice).
+     * @throws { BusinessError } 600101 - Session service exception.
+     * @throws { BusinessError } 600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    getOutputDevice(callback: AsyncCallback<OutputDeviceInfo>): void;
+
+    /**
+     * Get output device information
+     * @returns { Promise<OutputDeviceInfo> } (OutputDeviceInfo) returned through promise
+     * @throws { BusinessError } 600101 - Session service exception.
+     * @throws { BusinessError } 600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Get output device information
+     * @returns { Promise<OutputDeviceInfo> } (OutputDeviceInfo) returned through promise
+     * @throws { BusinessError } 600101 - Session service exception.
+     * @throws { BusinessError } 600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    getOutputDevice(): Promise<OutputDeviceInfo>;
+
+    /**
+     * Get output device information
+     * @returns { OutputDeviceInfo } (OutputDeviceInfo) returned
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Get output device information
+     * @returns { OutputDeviceInfo } (OutputDeviceInfo) returned
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    getOutputDeviceSync(): OutputDeviceInfo;
+
+    /**
+     * Send media key event to this session
+     * @param { KeyEvent } event - The KeyEvent
+     * @param { AsyncCallback<void> } callback - The asyncCallback triggered when the command is executed successfully.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Parameter verification failed.
+     * @throws { BusinessError } 600101 - Session service exception.
+     * @throws { BusinessError } 600102 - The session does not exist.
+     * @throws { BusinessError } 600103 - The session controller does not exist.
+     * @throws { BusinessError } 600105 - Invalid session command.
+     * @throws { BusinessError } 600106 - The session is not activated.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    sendAVKeyEvent(event: KeyEvent, callback: AsyncCallback<void>): void;
+
+    /**
+     * Send media key event to this session
+     * @param { KeyEvent } event - The KeyEvent
+     * @returns { Promise<void> } void promise when executed successfully
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Parameter verification failed.
+     * @throws { BusinessError } 600101 - Session service exception.
+     * @throws { BusinessError } 600102 - The session does not exist.
+     * @throws { BusinessError } 600103 - The session controller does not exist.
+     * @throws { BusinessError } 600105 - Invalid session command.
+     * @throws { BusinessError } 600106 - The session is not activated.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Send media key event to this session
+     * @param { KeyEvent } event - The KeyEvent
+     * @returns { Promise<void> } void promise when executed successfully
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Parameter verification failed.
+     * @throws { BusinessError } 600101 - Session service exception.
+     * @throws { BusinessError } 600102 - The session does not exist.
+     * @throws { BusinessError } 600103 - The session controller does not exist.
+     * @throws { BusinessError } 600105 - Invalid session command.
+     * @throws { BusinessError } 600106 - The session is not activated.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    sendAVKeyEvent(event: KeyEvent): Promise<void>;
+
+    /**
+     * Get the {@link WantAgent} of this session that can launch the session ability
+     * @param { AsyncCallback<WantAgent> } callback - The asyncCallback triggered when getting the WantAgent.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    getLaunchAbility(callback: AsyncCallback<WantAgent>): void;
+
+    /**
+     * Get the {@link WantAgent} of this session that can launch the session ability
+     * @returns { Promise<WantAgent> } WantAgent promise
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Get the {@link WantAgent} of this session that can launch the session ability
+     * @returns { Promise<WantAgent> } WantAgent promise
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    getLaunchAbility(): Promise<WantAgent>;
+
+    /**
+     * Get the adjusted playback position. The time automatically calculated by the system
+     * taking into account factors such as playback status, playback speed, and application update time.
+     * @returns { number } current playback position in ms.Note that the returns value of each call will be different.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Get the adjusted playback position. The time automatically calculated by the system
+     * taking into account factors such as playback status, playback speed, and application update time.
+     * @returns { number } current playback position in ms.Note that the returns value of each call will be different.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    getRealPlaybackPositionSync(): number;
+
+    /**
+     * Check if the current session is active
+     * @param { AsyncCallback<boolean> } callback - The triggered asyncCallback when (isActive).
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    isActive(callback: AsyncCallback<boolean>): void;
+
+    /**
+     * Check if the current session is active
+     * @returns { Promise<boolean> } boolean promise
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Check if the current session is active
+     * @returns { Promise<boolean> } boolean promise
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    isActive(): Promise<boolean>;
+
+    /**
+     * Check if the current session is active
+     * @returns { boolean } boolean
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Check if the current session is active
+     * @returns { boolean } boolean
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    isActiveSync(): boolean;
+
+    /**
+     * Destroy the server controller
+     * @param { AsyncCallback<void> } callback - The asyncCallback triggered when the command is executed successfully.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    destroy(callback: AsyncCallback<void>): void;
+
+    /**
+     * Destroy the server controller
+     * @returns { Promise<void> } void promise when executed successfully
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Destroy the server controller
+     * @returns { Promise<void> } void promise when executed successfully
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    destroy(): Promise<void>;
+
+    /**
+     * Get commands supported by the current session
+     * @param { AsyncCallback<Array<AVControlCommandType>> } callback - The triggered asyncCallback when (getValidCommands).
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    getValidCommands(callback: AsyncCallback<Array<AVControlCommandType>>): void;
+
+    /**
+     * Get commands supported by the current session
+     * @returns { Promise<Array<AVControlCommandType>> } array of AVControlCommandType promise
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Get commands supported by the current session
+     * @returns { Promise<Array<AVControlCommandType>> } array of AVControlCommandType promise
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    getValidCommands(): Promise<Array<AVControlCommandType>>;
+
+    /**
+     * Get commands supported by the current session
+     * @returns {Array<AVControlCommandType> } array of AVControlCommandType
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Get commands supported by the current session
+     * @returns {Array<AVControlCommandType> } array of AVControlCommandType
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    getValidCommandsSync(): Array<AVControlCommandType>;
+
+    /**
+     * Send control commands to this session
+     * @param { AVControlCommand } command - The command to be sent. See {@link AVControlCommand}
+     * @param { AsyncCallback<void> } callback - The asyncCallback triggered when the command is executed successfully.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Parameter verification failed.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @throws { BusinessError } 6600105 - Invalid session command.
+     * @throws { BusinessError } 6600106 - The session is not activated.
+     * @throws { BusinessError } 6600107 - Too many commands or events.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    sendControlCommand(command: AVControlCommand, callback: AsyncCallback<void>): void;
+
+    /**
+     * Send control commands to this session
+     * @param { AVControlCommand } command - The command to be sent. See {@link AVControlCommand}
+     * @returns { Promise<void> } void promise when executed successfully
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Parameter verification failed.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @throws { BusinessError } 6600105 - Invalid session command.
+     * @throws { BusinessError } 6600106 - The session is not activated.
+     * @throws { BusinessError } 6600107 - Too many commands or events.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Send control commands to this session
+     * @param { AVControlCommand } command - The command to be sent. See {@link AVControlCommand}
+     * @returns { Promise<void> } void promise when executed successfully
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Parameter verification failed.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @throws { BusinessError } 6600105 - Invalid session command.
+     * @throws { BusinessError } 6600106 - The session is not activated.
+     * @throws { BusinessError } 6600107 - Too many commands or events.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    sendControlCommand(command: AVControlCommand): Promise<void>;
+
+    /**
+     * Send common commands to this session
+     * @param { string } command - The command name to be sent.
+     * @param { object } args - The parameters of session event
+     * @param { AsyncCallback<void> } callback - The asyncCallback triggered when the command is executed successfully.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Parameter verification failed.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @throws { BusinessError } 6600105 - Invalid session command.
+     * @throws { BusinessError } 6600106 - The session is not activated.
+     * @throws { BusinessError } 6600107 - Too many commands or events.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    sendCommonCommand(command: string, args: AVSessionStringBindObject, callback: AsyncCallback<void>): void;
+
+    /**
+     * Send common commands to this session
+     * @param { string } command - The command name to be sent.
+     * @param { object } args - The parameters of session event
+     * @returns { Promise<void> } void promise when executed successfully
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Parameter verification failed.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @throws { BusinessError } 6600105 - Invalid session command.
+     * @throws { BusinessError } 6600106 - The session is not activated.
+     * @throws { BusinessError } 6600107 - Too many commands or events.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Send common commands to this session
+     * @param { string } command - The command name to be sent.
+     * @param { object } args - The parameters of session event
+     * @returns { Promise<void> } void promise when executed successfully
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Parameter verification failed.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @throws { BusinessError } 6600105 - Invalid session command.
+     * @throws { BusinessError } 6600106 - The session is not activated.
+     * @throws { BusinessError } 6600107 - Too many commands or events.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    sendCommonCommand(command: string, args: AVSessionStringBindObject): Promise<void>;
+
+    /**
+     * Get custom media packets provided by the corresponding session
+     * @param { AsyncCallback<{[key: string]: Object}> } callback - The triggered asyncCallback when (getExtras).
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types. 3.Parameter verification failed.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @throws { BusinessError } 6600105 - Invalid session command.
+     * @throws { BusinessError } 6600107 - Too many commands or events.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    getExtras(callback: AsyncCallback<AVSessionStringBindObject>): void;
+
+    /**
+     * Get custom media packets provided by the corresponding session
+     * @returns { Promise<{[key: string]: Object}> } the parameters of extras
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types. 3.Parameter verification failed.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @throws { BusinessError } 6600105 - Invalid session command.
+     * @throws { BusinessError } 6600107 - Too many commands or events.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Get custom media packets provided by the corresponding session
+     * @returns { Promise<{[key: string]: Object}> } the parameters of extras
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types. 3.Parameter verification failed.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600102 - The session does not exist.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @throws { BusinessError } 6600105 - Invalid session command.
+     * @throws { BusinessError } 6600107 - Too many commands or events.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    getExtras(): Promise<AVSessionStringBindObject>;
+
+    /**
+     * Register metadata changed callback
+     * @param { 'metadataChange' } type 
+     * @param { Array<keyof AVMetadata> | 'all' } filter - The properties of {@link AVMetadata} that you cared about
+     * @param { function } callback - The callback used to handle metadata changed event.
+     * The callback function provides the {@link AVMetadata} parameter.
+     * It only contains the properties set in the filter.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Register metadata changed callback
+     * @param { 'metadataChange' } type 
+     * @param { Array<keyof AVMetadata> | 'all' } filter - The properties of {@link AVMetadata} that you cared about
+     * @param { function } callback - The callback used to handle metadata changed event.
+     * The callback function provides the {@link AVMetadata} parameter.
+     * It only contains the properties set in the filter.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    on(type: 'metadataChange', filter: Array<AVMetadata> | 'all', callback: (data: AVMetadata) => void);
+
+    /**
+     * Unregister metadata changed callback
+     * @param { 'metadataChange' } type
+     * @param { function } callback - The callback used to handle metadata changed event.
+     * The callback function provides the {@link AVMetadata} parameter.
+     * It only contains the properties set in the filter.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Unregister metadata changed callback
+     * @param { 'metadataChange' } type
+     * @param { function } callback - The callback used to handle metadata changed event.
+     * The callback function provides the {@link AVMetadata} parameter.
+     * It only contains the properties set in the filter.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    off(type: 'metadataChange', callback?: (data: AVMetadata) => void);
+
+    /**
+     * Register playback state changed callback
+     * @param { 'playbackStateChange' } type
+     * @param { Array<keyof AVPlaybackState> | 'all' } filter - The properties of {@link AVPlaybackState} that you cared about
+     * @param { function } callback - The callback used to handle playback state changed event.
+     * The callback function provides the {@link AVPlaybackState} parameter.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Register playback state changed callback
+     * @param { 'playbackStateChange' } type
+     * @param { Array<keyof AVPlaybackState> | 'all' } filter - The properties of {@link AVPlaybackState} that you cared about
+     * @param { function } callback - The callback used to handle playback state changed event.
+     * The callback function provides the {@link AVPlaybackState} parameter.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    on(type: 'playbackStateChange', filter: Array<AVPlaybackState> | 'all', callback: (state: AVPlaybackState) => void);
+
+    /**
+     * Unregister playback state changed callback
+     * @param { 'playbackStateChange' } type
+     * @param { function } callback - The callback used to handle playback state changed event.
+     * The callback function provides the {@link AVPlaybackState} parameter.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Unregister playback state changed callback
+     * @param { 'playbackStateChange' } type
+     * @param { function } callback - The callback used to handle playback state changed event.
+     * The callback function provides the {@link AVPlaybackState} parameter.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    off(type: 'playbackStateChange', callback?: (state: AVPlaybackState) => void);
+
+    /**
+     * Register call metadata changed callback
+     * @param { 'callMetadataChange' } type - 'callMetadataChange'
+     * @param { Array<keyof CallMetadata> | 'all' } filter - The properties of {@link CallMetadata} that you cared about
+     * @param { Callback<CallMetadata> } callback - The callback used to handle call metadata changed event.
+     * The callback function provides the {@link CallMetadata} parameter.
+     * It only contains the properties set in the filter.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 11
+     */
+    /**
+     * Register call metadata changed callback
+     * @param { 'callMetadataChange' } type - 'callMetadataChange'
+     * @param { Array<keyof CallMetadata> | 'all' } filter - The properties of {@link CallMetadata} that you cared about
+     * @param { Callback<CallMetadata> } callback - The callback used to handle call metadata changed event.
+     * The callback function provides the {@link CallMetadata} parameter.
+     * It only contains the properties set in the filter.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    on(type: 'callMetadataChange', filter: Array<CallMetadata> | 'all', callback: Callback<CallMetadata>): void;
+
+    /**
+     * Unregister call metadata changed callback
+     * @param { 'callMetadataChange' } type - 'callMetadataChange'
+     * @param { Callback<CallMetadata> } callback - The callback used to handle call metadata changed event.
+     * The callback function provides the {@link CallMetadata} parameter.
+     * It only contains the properties set in the filter.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 11
+     */
+    /**
+     * Unregister call metadata changed callback
+     * @param { 'callMetadataChange' } type - 'callMetadataChange'
+     * @param { Callback<CallMetadata> } callback - The callback used to handle call metadata changed event.
+     * The callback function provides the {@link CallMetadata} parameter.
+     * It only contains the properties set in the filter.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    off(type: 'callMetadataChange', callback?: Callback<CallMetadata>): void;
+
+    /**
+     * Register call state changed callback
+     * @param { 'callStateChange' } type - 'callStateChange'
+     * @param { Array<keyof AVCallState> | 'all' } filter - The properties of {@link AVCallState} that you cared about
+     * @param { Callback<AVCallState> } callback - The callback used to handle call state changed event.
+     * The callback function provides the {@link AVCallState} parameter.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 11
+     */
+    /**
+     * Register call state changed callback
+     * @param { 'callStateChange' } type - 'callStateChange'
+     * @param { Array<keyof AVCallState> | 'all' } filter - The properties of {@link AVCallState} that you cared about
+     * @param { Callback<AVCallState> } callback - The callback used to handle call state changed event.
+     * The callback function provides the {@link AVCallState} parameter.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    on(type: 'callStateChange', filter: Array<AVCallState> | 'all', callback: Callback<AVCallState>): void;
+
+    /**
+     * Unregister playback state changed callback
+     * @param { 'callStateChange' } type - 'callStateChange'
+     * @param { Callback<AVCallState> } callback - The callback used to handle call state changed event.
+     * The callback function provides the {@link AVCallState} parameter.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 11
+     */
+    /**
+     * Unregister playback state changed callback
+     * @param { 'callStateChange' } type - 'callStateChange'
+     * @param { Callback<AVCallState> } callback - The callback used to handle call state changed event.
+     * The callback function provides the {@link AVCallState} parameter.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    off(type: 'callStateChange', callback?: Callback<AVCallState>): void;
+
+    /**
+     * Register current session destroyed callback
+     * @param { 'sessionDestroy' } type
+     * @param { function } callback - The callback used to handle current session destroyed event.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Register current session destroyed callback
+     * @param { 'sessionDestroy' } type
+     * @param { function } callback - The callback used to handle current session destroyed event.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    on(type: 'sessionDestroy', callback: () => void);
+
+    /**
+     * Unregister current session destroyed callback
+     * @param { 'sessionDestroy' } type - 'sessionDestroy'
+     * @param { function } callback - The callback used to handle current session destroyed event.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Unregister current session destroyed callback
+     * @param { 'sessionDestroy' } type - 'sessionDestroy'
+     * @param { function } callback - The callback used to handle current session destroyed event.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    off(type: 'sessionDestroy', callback?: () => void);
+
+    /**
+     * Register the active state of this session changed callback
+     * @param { 'activeStateChange' } type - 'activeStateChange'
+     * @param { function } callback - The callback used to handle the active state of this session changed event.
+     * The callback function provides the changed session state.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Register the active state of this session changed callback
+     * @param { 'activeStateChange' } type - 'activeStateChange'
+     * @param { function } callback - The callback used to handle the active state of this session changed event.
+     * The callback function provides the changed session state.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    on(type: 'activeStateChange', callback: (isActive: boolean) => void);
+
+    /**
+     * Unregister the active state of this session changed callback
+     * @param { 'activeStateChange' } type - 'activeStateChange'
+     * @param { function } callback - The callback used to handle the active state of this session changed event.
+     * The callback function provides the changed session state.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Unregister the active state of this session changed callback
+     * @param { 'activeStateChange' } type - 'activeStateChange'
+     * @param { function } callback - The callback used to handle the active state of this session changed event.
+     * The callback function provides the changed session state.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    off(type: 'activeStateChange', callback?: (isActive: boolean) => void);
+
+    /**
+     * Register the valid commands of the session changed callback
+     * @param { 'validCommandChange' } type - 'validCommandChange'
+     * @param { function } callback - The callback used to handle the changes.
+     * The callback function provides an array of AVControlCommandType.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Register the valid commands of the session changed callback
+     * @param { 'validCommandChange' } type - 'validCommandChange'
+     * @param { function } callback - The callback used to handle the changes.
+     * The callback function provides an array of AVControlCommandType.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    on(type: 'validCommandChange', callback: (commands: Array<AVControlCommandType>) => void);
+
+    /**
+     * Unregister the valid commands of the session changed callback
+     * @param { 'validCommandChange' } type - 'validCommandChange'
+     * @param { function } callback - The callback used to handle the changes.
+     * The callback function provides an array of AVControlCommandType.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Unregister the valid commands of the session changed callback
+     * @param { 'validCommandChange' } type - 'validCommandChange'
+     * @param { function } callback - The callback used to handle the changes.
+     * The callback function provides an array of AVControlCommandType.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    off(type: 'validCommandChange', callback?: (commands: Array<AVControlCommandType>) => void);
+
+    /**
+     * Register session output device change callback
+     * @param { 'outputDeviceChange' } type - Registration Type 'outputDeviceChange'
+     * @param { function } callback - Used to handle output device changed.
+     * The callback provide the new device info {@link OutputDeviceInfo} and related connection state {@link ConnectionState}.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception
+     * @throws { BusinessError } 6600103 - The session controller does not exist
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Register session output device change callback
+     * @param { 'outputDeviceChange' } type - Registration Type 'outputDeviceChange'
+     * @param { function } callback - Used to handle output device changed.
+     * The callback provide the new device info {@link OutputDeviceInfo} and related connection state {@link ConnectionState}.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception
+     * @throws { BusinessError } 6600103 - The session controller does not exist
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    on(type: 'outputDeviceChange', callback: (state: ConnectionState, device: OutputDeviceInfo) => void): void;
+
+    /**
+     * Unregister session output device change callback
+     * @param { 'outputDeviceChange' } type - Registration Type 'outputDeviceChange'
+     * @param { function } callback - Used to handle output device changed.
+     * The callback provide the new device info {@link OutputDeviceInfo} and related connection state {@link ConnectionState}.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception
+     * @throws { BusinessError } 6600103 - The session controller does not exist
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Unregister session output device change callback
+     * @param { 'outputDeviceChange' } type - Registration Type 'outputDeviceChange'
+     * @param { function } callback - Used to handle output device changed.
+     * The callback provide the new device info {@link OutputDeviceInfo} and related connection state {@link ConnectionState}.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception
+     * @throws { BusinessError } 6600103 - The session controller does not exist
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    off(type: 'outputDeviceChange', callback?: (state: ConnectionState, device: OutputDeviceInfo) => void): void;
+
+    /**
+     * Register session event callback
+     * @param { 'sessionEvent' } type - 'sessionEvent'
+     * @param { function } callback - The callback used to handle session event changed event.
+     * The callback function provides the event string and key-value pair parameters.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Register session event callback
+     * @param { 'sessionEvent' } type - 'sessionEvent'
+     * @param { function } callback - The callback used to handle session event changed event.
+     * The callback function provides the event string and key-value pair parameters.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    on(type: 'sessionEvent', callback: (sessionEvent: string, args: AVSessionStringBindObject) => void): void;
+
+    /**
+     * Unregister session event callback
+     * @param { 'sessionEvent' } type - 'sessionEvent'
+     * @param { function } callback - Used to cancel a specific listener
+     * The callback function provides the event string and key-value pair parameters.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Unregister session event callback
+     * @param { 'sessionEvent' } type - 'sessionEvent'
+     * @param { function } callback - Used to cancel a specific listener
+     * The callback function provides the event string and key-value pair parameters.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    off(type: 'sessionEvent', callback?: (sessionEvent: string, args: AVSessionStringBindObject) => void): void;
+
+    /**
+     * Register session playlist change callback
+     * @param { 'queueItemsChange' } type - Registration Type 'queueItemsChange'
+     * @param { function } callback - Used to handle playlist changed.
+     * The callback provides the new array of AVQueueItem {@link AVQueueItem}
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Register session playlist change callback
+     * @param { 'queueItemsChange' } type - Registration Type 'queueItemsChange'
+     * @param { function } callback - Used to handle playlist changed.
+     * The callback provides the new array of AVQueueItem {@link AVQueueItem}
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    on(type: 'queueItemsChange', callback: (items: Array<AVQueueItem>) => void): void;
+
+    /**
+     * Unregister session playlist change callback
+     * @param { 'queueItemsChange' } type - Registration Type 'queueItemsChange'
+     * @param { function } callback - Used to handle playlist changed.
+     * The callback provides the new array of AVQueueItem {@link AVQueueItem}
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Unregister session playlist change callback
+     * @param { 'queueItemsChange' } type - Registration Type 'queueItemsChange'
+     * @param { function } callback - Used to handle playlist changed.
+     * The callback provides the new array of AVQueueItem {@link AVQueueItem}
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    off(type: 'queueItemsChange', callback?: (items: Array<AVQueueItem>) => void): void;
+
+    /**
+     * Register the name of session playlist change callback
+     * @param { 'queueTitleChange' } type - Registration Type 'queueTitleChange'
+     * @param { function } callback - Used to handle name of playlist changed.
+     * The callback provides the new name.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Register the name of session playlist change callback
+     * @param { 'queueTitleChange' } type - Registration Type 'queueTitleChange'
+     * @param { function } callback - Used to handle name of playlist changed.
+     * The callback provides the new name.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    on(type: 'queueTitleChange', callback: (title: string) => void): void;
+
+    /**
+     * Unregister the name of session playlist change callback
+     * @param { 'queueTitleChange' } type - Registration Type 'queueTitleChange'
+     * @param { function } callback - Used to handle name of playlist changed.
+     * The callback provides the new name.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Unregister the name of session playlist change callback
+     * @param { 'queueTitleChange' } type - Registration Type 'queueTitleChange'
+     * @param { function } callback - Used to handle name of playlist changed.
+     * The callback provides the new name.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    off(type: 'queueTitleChange', callback?: (title: string) => void): void;
+
+    /**
+     * Register the custom media packets change callback
+     * @param { 'extrasChange' } type - Registration Type 'extrasChange'
+     * @param { function } callback - Used to handle custom media packets changed.
+     * The callback provides the new media packets.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Register the custom media packets change callback
+     * @param { 'extrasChange' } type - Registration Type 'extrasChange'
+     * @param { function } callback - Used to handle custom media packets changed.
+     * The callback provides the new media packets.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    on(type: 'extrasChange', callback: (extras: AVSessionStringBindObject) => void): void;
+
+    /**
+     * Unregister the custom media packets change callback
+     * @param { 'extrasChange' } type - Registration Type 'extrasChange'
+     * @param { function } callback - Used to handle custom media packets changed.
+     * The callback provides the new media packets.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Unregister the custom media packets change callback
+     * @param { 'extrasChange' } type - Registration Type 'extrasChange'
+     * @param { function } callback - Used to handle custom media packets changed.
+     * The callback provides the new media packets.
+     * @throws { BusinessError } 401 - parameter check failed. 1.Mandatory parameters are left unspecified.
+     * 2.Incorrect parameter types.
+     * @throws { BusinessError } 6600101 - Session service exception.
+     * @throws { BusinessError } 6600103 - The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    off(type: 'extrasChange', callback?: (extras: AVSessionStringBindObject) => void): void;
+  }
+
+  /**
+   * The type of control command
+   * 
+   * @typedef { 'play' | 'pause' | 'stop' | 'playNext' | 'playPrevious' | 'fastForward' | 'rewind' | 'seek' |
+   *     'setSpeed' | 'setLoopMode' | 'toggleFavorite' } AVControlCommandType
+   * @syscap SystemCapability.Multimedia.AVSession.Core
+   * @since 10
+   */
+  /**
+   * The type of control command, add new support 'playFromAssetId' | 'answer' | 'hangUp' | 'toggleCallMute'
+   * @typedef { 'play' | 'pause' | 'stop' | 'playNext' | 'playPrevious' | 'fastForward' | 'rewind' | 'seek' |
+   *     'setSpeed' | 'setLoopMode' | 'toggleFavorite' | 'playFromAssetId' | 'answer' | 'hangUp' |
+   *     'toggleCallMute' } AVControlCommandType
+   * @syscap SystemCapability.Multimedia.AVSession.Core
+   * @since 11
+   */
+  /**
+   * The type of control command, add new support 'playFromAssetId' | 'answer' | 'hangUp' | 'toggleCallMute'
+   * @typedef { 'play' | 'pause' | 'stop' | 'playNext' | 'playPrevious' | 'fastForward' | 'rewind' | 'seek' |
+   *     'setSpeed' | 'setLoopMode' | 'toggleFavorite' | 'playFromAssetId' | 'answer' | 'hangUp' |
+   *     'toggleCallMute' } AVControlCommandType
+   * @syscap SystemCapability.Multimedia.AVSession.Core
+   * @atomicservice
+   * @since 12
+   */
+  type AVControlCommandType = 'play' | 'pause' | 'stop' | 'playNext' | 'playPrevious' | 'fastForward' | 'rewind' |
+  'seek' | 'setSpeed' | 'setLoopMode' | 'toggleFavorite' | 'playFromAssetId' | 'answer' | 'hangUp' | 'toggleCallMute';
+
+  /**
+   * The definition of command to be sent to the session
+   * @interface AVControlCommand
+   * @syscap SystemCapability.Multimedia.AVSession.Core
+   * @since 10
+   */
+  /**
+   * The definition of command to be sent to the session
+   * @typedef AVControlCommand
+   * @syscap SystemCapability.Multimedia.AVSession.Core
+   * @atomicservice
+   * @since 12
+   */
+  interface AVControlCommand {
+    /**
+     * The command value {@link AVControlCommandType}
+     * @type { AVControlCommandType }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * The command value {@link AVControlCommandType}
+     * @type { AVControlCommandType }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    command: AVControlCommandType;
+
+    /**
+     * parameter of the command. Whether this command requires parameters, see {@link AVSessionCommand}
+     * seek command requires a number parameter
+     * setSpeed command requires a number parameter
+     * setLoopMode command requires a {@link LoopMode} parameter.
+     * toggleFavorite command requires assetId {@link AVMetadata.assetId} parameter
+     * other commands need no parameter
+     * @type { ?(LoopMode | string | number) }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * parameter of the command. Whether this command requires parameters, see {@link AVSessionCommand}
+     * seek command requires a number parameter
+     * setSpeed command requires a number parameter
+     * setLoopMode command requires a {@link LoopMode} parameter.
+     * toggleFavorite command requires assetId {@link AVMetadata.assetId} parameter
+     * other commands need no parameter
+     * @type { ?(LoopMode | string | number) }
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    parameter?: LoopMode | string | number;
+  }
+
+  /**
+   * Enumerates ErrorCode types, returns in BusinessError.code.
+   * @enum { number }
+   * @syscap SystemCapability.Multimedia.AVSession.Core
+   * @since 10
+   */
+  /**
+   * Enumerates ErrorCode types, returns in BusinessError.code.
+   * @enum { number }
+   * @syscap SystemCapability.Multimedia.AVSession.Core
+   * @atomicservice
+   * @since 12
+   */
+  enum AVSessionErrorCode {
+    /**
+     * Session service exception.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Session service exception.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    ERR_CODE_SERVICE_EXCEPTION = 6600101,
+
+    /**
+     * The session does not exist
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * The session does not exist
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    ERR_CODE_SESSION_NOT_EXIST = 6600102,
+
+    /**
+     * The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * The session controller does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    ERR_CODE_CONTROLLER_NOT_EXIST = 6600103,
+
+    /**
+     * The remote session connection failed.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * The remote session connection failed.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    ERR_CODE_REMOTE_CONNECTION_ERR = 6600104,
+
+    /**
+     * Invalid session command.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Invalid session command.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    ERR_CODE_COMMAND_INVALID = 6600105,
+
+    /**
+     * The session is not activated.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * The session is not activated.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    ERR_CODE_SESSION_INACTIVE = 6600106,
+
+    /**
+     * Too many commands or events.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Too many commands or events.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    ERR_CODE_MESSAGE_OVERLOAD = 6600107,
+
+    /**
+     * Device connecting failed.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * Device connecting failed.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    ERR_CODE_DEVICE_CONNECTION_FAILED = 6600108,
+
+    /**
+     * The remote connection is not established.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @since 10
+     */
+    /**
+     * The remote connection is not established.
+     * @syscap SystemCapability.Multimedia.AVSession.Core
+     * @atomicservice
+     * @since 12
+     */
+    ERR_CODE_REMOTE_CONNECTION_NOT_EXIST = 6600109,
+
+    /**
+     * The error code for cast control is unspecified.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    ERR_CODE_CAST_CONTROL_UNSPECIFIED = 6611000,
+
+    /**
+     * An unspecified error occurs in the remote player.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    ERR_CODE_CAST_CONTROL_REMOTE_ERROR = 6611001,
+
+    /**
+     * The playback position falls behind the live window.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    ERR_CODE_CAST_CONTROL_BEHIND_LIVE_WINDOW = 6611002,
+
+    /**
+     * The process of cast control times out.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    ERR_CODE_CAST_CONTROL_TIMEOUT = 6611003,
+
+    /**
+     * The runtime check failed.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    ERR_CODE_CAST_CONTROL_RUNTIME_CHECK_FAILED = 6611004,
+
+    /**
+     * Cross-device data transmission is locked.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    ERR_CODE_CAST_CONTROL_PLAYER_NOT_WORKING = 6611100,
+
+    /**
+     * The specified seek mode is not supported.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    ERR_CODE_CAST_CONTROL_SEEK_MODE_UNSUPPORTED = 6611101,
+
+    /**
+     * The position to seek to is out of the range of the media asset or the specified seek mode is not supported.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    ERR_CODE_CAST_CONTROL_ILLEGAL_SEEK_TARGET = 6611102,
+
+    /**
+     * The specified playback mode is not supported.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    ERR_CODE_CAST_CONTROL_PLAY_MODE_UNSUPPORTED = 6611103,
+
+    /**
+     * The specified playback speed is not supported.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    ERR_CODE_CAST_CONTROL_PLAY_SPEED_UNSUPPORTED = 6611104,
+
+    /**
+     * The action failed because either the media source device or the media sink device has been revoked.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    ERR_CODE_CAST_CONTROL_DEVICE_MISSING = 6611105,
+
+    /**
+     * The parameter is invalid, for example, the url is illegal to play.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    ERR_CODE_CAST_CONTROL_INVALID_PARAM = 6611106,
+
+    /**
+     * Allocation of memory failed.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    ERR_CODE_CAST_CONTROL_NO_MEMORY = 6611107,
+
+    /**
+     * Operation is not allowed.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    ERR_CODE_CAST_CONTROL_OPERATION_NOT_ALLOWED = 6611108,
+
+    /**
+     * An unspecified input/output error occurs.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    ERR_CODE_CAST_CONTROL_IO_UNSPECIFIED = 6612000,
+
+    /**
+     * Network connection failure.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    ERR_CODE_CAST_CONTROL_IO_NETWORK_CONNECTION_FAILED = 6612001,
+
+    /**
+     * Network timeout.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    ERR_CODE_CAST_CONTROL_IO_NETWORK_CONNECTION_TIMEOUT = 6612002,
+
+    /**
+     * Invalid "Content-Type" HTTP header.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    ERR_CODE_CAST_CONTROL_IO_INVALID_HTTP_CONTENT_TYPE = 6612003,
+
+    /**
+     * The HTTP server returns an unexpected HTTP response status code.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    ERR_CODE_CAST_CONTROL_IO_BAD_HTTP_STATUS = 6612004,
+
+    /**
+     * The file does not exist.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    ERR_CODE_CAST_CONTROL_IO_FILE_NOT_FOUND = 6612005,
+
+    /**
+     * No permission is granted to perform the IO operation.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    ERR_CODE_CAST_CONTROL_IO_NO_PERMISSION = 6612006,
+
+    /**
+     * Access to cleartext HTTP traffic is not allowed by the app's network security configuration.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    ERR_CODE_CAST_CONTROL_IO_CLEARTEXT_NOT_PERMITTED = 6612007,
+
+    /**
+     * Reading data out of the data bound.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    ERR_CODE_CAST_CONTROL_IO_READ_POSITION_OUT_OF_RANGE = 6612008,
+
+    /**
+     * The media does not contain any contents that can be played.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    ERR_CODE_CAST_CONTROL_IO_NO_CONTENTS = 6612100,
+
+    /**
+     * The media cannot be read, for example, because of dust or scratches.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    ERR_CODE_CAST_CONTROL_IO_READ_ERROR = 6612101,
+
+    /**
+     * This resource is already in use.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    ERR_CODE_CAST_CONTROL_IO_CONTENT_BUSY = 6612102,
+
+    /**
+     * The content using the validity interval has expired.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    ERR_CODE_CAST_CONTROL_IO_CONTENT_EXPIRED = 6612103,
+
+    /**
+     * Using the requested content to play is not allowed.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    ERR_CODE_CAST_CONTROL_IO_USE_FORBIDDEN = 6612104,
+
+    /**
+     * The use of the allowed content cannot be verified.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    ERR_CODE_CAST_CONTROL_IO_NOT_VERIFIED = 6612105,
+
+    /**
+     * The number of times this content has been used as requested has reached the maximum allowed number of uses.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    ERR_CODE_CAST_CONTROL_IO_EXHAUSTED_ALLOWED_USES = 6612106,
+
+    /**
+     * An error occurs when sending packet from source device to sink device.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    ERR_CODE_CAST_CONTROL_IO_NETWORK_PACKET_SENDING_FAILED = 6612107,
+
+    /**
+     * Unspecified error related to content parsing.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    ERR_CODE_CAST_CONTROL_PARSING_UNSPECIFIED = 6613000,
+
+    /**
+     * Parsing error associated with media container format bit streams.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    ERR_CODE_CAST_CONTROL_PARSING_CONTAINER_MALFORMED = 6613001,
+
+    /**
+     * Parsing error associated with the media manifest.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    ERR_CODE_CAST_CONTROL_PARSING_MANIFEST_MALFORMED = 6613002,
+
+    /**
+     * An error occurs when attempting to extract a file with an unsupported media container format
+     * or an unsupported media container feature.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    ERR_CODE_CAST_CONTROL_PARSING_CONTAINER_UNSUPPORTED = 6613003,
+
+    /**
+     * Unsupported feature in the media manifest.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    ERR_CODE_CAST_CONTROL_PARSING_MANIFEST_UNSUPPORTED = 6613004,
+
+    /**
+     * Unspecified decoding error.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    ERR_CODE_CAST_CONTROL_DECODING_UNSPECIFIED = 6614000,
+
+    /**
+     * Decoder initialization failed.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    ERR_CODE_CAST_CONTROL_DECODING_INIT_FAILED = 6614001,
+
+    /**
+     * Decoder query failed.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    ERR_CODE_CAST_CONTROL_DECODING_QUERY_FAILED = 6614002,
+
+    /**
+     * Decoding the media samples failed.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    ERR_CODE_CAST_CONTROL_DECODING_FAILED = 6614003,
+
+    /**
+     * The format of the content to decode exceeds the capabilities of the device.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    ERR_CODE_CAST_CONTROL_DECODING_FORMAT_EXCEEDS_CAPABILITIES = 6614004,
+
+    /**
+     * The format of the content to decode is not supported.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    ERR_CODE_CAST_CONTROL_DECODING_FORMAT_UNSUPPORTED = 6614005,
+
+    /**
+     * Unspecified errors related to the audio renderer.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    ERR_CODE_CAST_CONTROL_AUDIO_RENDERER_UNSPECIFIED = 6615000,
+
+    /**
+     * Initializing the audio renderer failed.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    ERR_CODE_CAST_CONTROL_AUDIO_RENDERER_INIT_FAILED = 6615001,
+
+    /**
+     * The audio renderer fails to write data.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    ERR_CODE_CAST_CONTROL_AUDIO_RENDERER_WRITE_FAILED = 6615002,
+
+    /**
+     * Unspecified error related to DRM.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    ERR_CODE_CAST_CONTROL_DRM_UNSPECIFIED = 6616000,
+
+    /**
+     * The chosen DRM protection scheme is not supported by the device.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    ERR_CODE_CAST_CONTROL_DRM_SCHEME_UNSUPPORTED = 6616001,
+
+    /**
+     * Device provisioning failed.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    ERR_CODE_CAST_CONTROL_DRM_PROVISIONING_FAILED = 6616002,
+
+    /**
+     * The DRM-protected content to play is incompatible.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    ERR_CODE_CAST_CONTROL_DRM_CONTENT_ERROR = 6616003,
+
+    /**
+     * Failed to obtain a license.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    ERR_CODE_CAST_CONTROL_DRM_LICENSE_ACQUISITION_FAILED = 6616004,
+
+    /**
+     * The operation is disallowed by the license policy.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    ERR_CODE_CAST_CONTROL_DRM_DISALLOWED_OPERATION = 6616005,
+
+    /**
+     * An error occurs in the DRM system.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    ERR_CODE_CAST_CONTROL_DRM_SYSTEM_ERROR = 6616006,
+
+    /**
+     * The device has revoked DRM privileges.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    ERR_CODE_CAST_CONTROL_DRM_DEVICE_REVOKED = 6616007,
+
+    /**
+     * The DRM license being loaded into the open DRM session has expired.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    ERR_CODE_CAST_CONTROL_DRM_LICENSE_EXPIRED = 6616008,
+
+    /**
+     * An error occurs when the DRM processes the key response.
+     * @syscap SystemCapability.Multimedia.AVSession.AVCast
+     * @atomicservice
+     * @since 13
+     */
+    ERR_CODE_CAST_CONTROL_DRM_PROVIDE_KEY_RESPONSE_ERROR = 6616100,
+  }
+}
+
+export default avSession;