diff --git a/android/build.gradle b/android/build.gradle
index 9505d8de7..b1691be3f 100644
--- a/android/build.gradle
+++ b/android/build.gradle
@@ -50,7 +50,7 @@ android {
 }
 
 dependencies {
-  api 'com.github.agorabuilder:native-full-sdk:3.5.1'
+  api 'com.github.agorabuilder:native-full-sdk:3.5.2'
 
   implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8:${safeExtGet('kotlin_version', '1.3.72')}"
 }
diff --git a/android/src/main/java/io/agora/rtc/base/BeanCovertor.kt b/android/src/main/java/io/agora/rtc/base/BeanCovertor.kt
index 425638174..97c15edff 100644
--- a/android/src/main/java/io/agora/rtc/base/BeanCovertor.kt
+++ b/android/src/main/java/io/agora/rtc/base/BeanCovertor.kt
@@ -12,6 +12,7 @@ import io.agora.rtc.live.LiveTranscoding.TranscodingUser
 import io.agora.rtc.models.ChannelMediaOptions
 import io.agora.rtc.models.ClientRoleOptions
 import io.agora.rtc.models.DataStreamConfig
+import io.agora.rtc.models.EchoTestConfiguration
 import io.agora.rtc.video.*
 
 fun mapToVideoDimensions(map: Map<*, *>): VideoEncoderConfiguration.VideoDimensions {
@@ -264,3 +265,12 @@ fun mapToVirtualBackgroundSource(map: Map<*, *>): VirtualBackgroundSource {
     (map["blur_degree"] as? Int)?.let { blur_degree = it }
   }
 }
+
+fun mapToEchoTestConfiguration(map: Map<*, *>): EchoTestConfiguration {
+  return EchoTestConfiguration().apply {
+    (map["enableAudio"] as? Boolean)?.let { enableAudio = it }
+    (map["enableVideo"] as? Boolean)?.let { enableVideo = it }
+    (map["token"] as? String)?.let { token = it }
+    (map["channelId"] as? String)?.let { channelId = it }
+  }
+}
diff --git a/android/src/main/java/io/agora/rtc/base/RtcEngine.kt b/android/src/main/java/io/agora/rtc/base/RtcEngine.kt
index ff731616c..43a445780 100644
--- a/android/src/main/java/io/agora/rtc/base/RtcEngine.kt
+++ b/android/src/main/java/io/agora/rtc/base/RtcEngine.kt
@@ -68,6 +68,8 @@ class IRtcEngine {
     fun setLocalAccessPoint(params: Map<String, *>, callback: Callback)
 
     fun enableVirtualBackground(params: Map<String, *>, callback: Callback)
+
+    fun takeSnapshot(params: Map<String, *>, callback: Callback)
   }
 
   interface RtcUserInfoInterface {
@@ -382,7 +384,10 @@ class IRtcEngine {
 }
 
 open class RtcEngineFactory {
-  open fun create(params: Map<String, *>, rtcEngineEventHandler: RtcEngineEventHandler): RtcEngine? {
+  open fun create(
+    params: Map<String, *>,
+    rtcEngineEventHandler: RtcEngineEventHandler
+  ): RtcEngine? {
     val engine = RtcEngineEx.create(mapToRtcEngineConfig(params["config"] as Map<*, *>).apply {
       mContext = params["context"] as Context
       mEventHandler = rtcEngineEventHandler
@@ -401,8 +406,10 @@ open class RtcEngineManager(
   private var mediaObserver: MediaObserver? = null
 
   fun release() {
-    RtcEngine.destroy()
-    engine = null
+    if (engine != null) {
+      RtcEngine.destroy()
+      engine = null
+    }
     mediaObserver = null
   }
 
@@ -578,6 +585,16 @@ open class RtcEngineManager(
     )
   }
 
+  override fun takeSnapshot(params: Map<String, *>, callback: Callback) {
+    callback.code(
+      engine?.takeSnapshot(
+        params["channel"] as String,
+        (params["uid"] as Number).toNativeUInt(),
+        params["filePath"] as String
+      )
+    )
+  }
+
   override fun registerLocalUserAccount(params: Map<String, *>, callback: Callback) {
     callback.code(
       engine?.registerLocalUserAccount(
@@ -1139,7 +1156,15 @@ open class RtcEngineManager(
   }
 
   override fun startEchoTest(params: Map<String, *>, callback: Callback) {
-    callback.code(engine?.startEchoTest((params["intervalInSeconds"] as Number).toInt()))
+    (params["intervalInSeconds"] as? Number)?.let { intervalInSeconds ->
+      callback.code(engine?.startEchoTest(intervalInSeconds.toInt()))
+      return@startEchoTest
+    }
+    (params["config"] as? Map<*, *>)?.let { config ->
+      callback.code(engine?.startEchoTest(mapToEchoTestConfiguration(config)))
+      return@startEchoTest
+    }
+    callback.code(engine?.startEchoTest())
   }
 
   override fun stopEchoTest(callback: Callback) {
diff --git a/android/src/main/java/io/agora/rtc/base/RtcEngineEvent.kt b/android/src/main/java/io/agora/rtc/base/RtcEngineEvent.kt
index d06d10b75..15ac9c19d 100644
--- a/android/src/main/java/io/agora/rtc/base/RtcEngineEvent.kt
+++ b/android/src/main/java/io/agora/rtc/base/RtcEngineEvent.kt
@@ -88,6 +88,7 @@ class RtcEngineEvents {
     const val UserSuperResolutionEnabled = "UserSuperResolutionEnabled"
     const val UploadLogResult = "UploadLogResult"
     const val VirtualBackgroundSourceEnabled = "VirtualBackgroundSourceEnabled"
+    const val SnapshotTaken = "SnapshotTaken"
 
     fun toMap(): Map<String, String> {
       return hashMapOf(
@@ -171,7 +172,8 @@ class RtcEngineEvents {
         "RtmpStreamingEvent" to RtmpStreamingEvent,
         "UserSuperResolutionEnabled" to UserSuperResolutionEnabled,
         "UploadLogResult" to UploadLogResult,
-        "VirtualBackgroundSourceEnabled" to VirtualBackgroundSourceEnabled
+        "VirtualBackgroundSourceEnabled" to VirtualBackgroundSourceEnabled,
+        "SnapshotTaken" to SnapshotTaken
       )
     }
   }
@@ -694,4 +696,23 @@ class RtcEngineEventHandler(
   ) {
     callback(RtcEngineEvents.VirtualBackgroundSourceEnabled, enabled, reason)
   }
+
+  override fun onSnapshotTaken(
+    channel: String?,
+    uid: Int,
+    filePath: String?,
+    width: Int,
+    height: Int,
+    errCode: Int
+  ) {
+    callback(
+      RtcEngineEvents.SnapshotTaken,
+      channel,
+      uid.toUInt().toLong(),
+      filePath,
+      width,
+      height,
+      errCode
+    )
+  }
 }
diff --git a/android/src/main/java/io/agora/rtc/base/RtcEnginePlugin.kt b/android/src/main/java/io/agora/rtc/base/RtcEnginePlugin.kt
index a688286df..0c434437a 100644
--- a/android/src/main/java/io/agora/rtc/base/RtcEnginePlugin.kt
+++ b/android/src/main/java/io/agora/rtc/base/RtcEnginePlugin.kt
@@ -12,8 +12,8 @@ interface RtcEnginePlugin {
    * This callback will be called when the [RtcEngine] is created by
    * [RtcEngine.createWithContext](https://docs.agora.io/cn/Video/API%20Reference/flutter/agora_rtc_engine/RtcEngine/createWithContext.html)
    * function from flutter.
-   *   
-   * NOTE that you should not call [RtcEngine.destroy], because it will also destroy the `RtcEngine` 
+   *
+   * NOTE that you should not call [RtcEngine.destroy], because it will also destroy the `RtcEngine`
    * used by flutter side.
    *
    * @param rtcEngine The same [RtcEngine] used by flutter side
diff --git a/example/android/app/src/test/kotlin/io/agora/agora_rtc_engine_example/FakeRtcEngine.kt b/example/android/app/src/test/kotlin/io/agora/agora_rtc_engine_example/FakeRtcEngine.kt
index d3cc46a13..ca93c0134 100644
--- a/example/android/app/src/test/kotlin/io/agora/agora_rtc_engine_example/FakeRtcEngine.kt
+++ b/example/android/app/src/test/kotlin/io/agora/agora_rtc_engine_example/FakeRtcEngine.kt
@@ -9,10 +9,7 @@ import io.agora.rtc.live.LiveInjectStreamConfig
 import io.agora.rtc.live.LiveTranscoding
 import io.agora.rtc.mediaio.IVideoSink
 import io.agora.rtc.mediaio.IVideoSource
-import io.agora.rtc.models.ChannelMediaOptions
-import io.agora.rtc.models.ClientRoleOptions
-import io.agora.rtc.models.DataStreamConfig
-import io.agora.rtc.models.UserInfo
+import io.agora.rtc.models.*
 import io.agora.rtc.video.*
 import java.util.*
 import javax.microedition.khronos.egl.EGLContext
@@ -30,15 +27,32 @@ class FakeRtcEngine : RtcEngineEx(), IAudioEffectManager {
     return 0
   }
 
-  override fun sendCustomReportMessage(id: String?, category: String?, event: String?, label: String?, value: Int): Int {
+  override fun sendCustomReportMessage(
+    id: String?,
+    category: String?,
+    event: String?,
+    label: String?,
+    value: Int
+  ): Int {
     return 0
   }
 
-  override fun joinChannel(token: String?, channelName: String?, optionalInfo: String?, optionalUid: Int): Int {
+  override fun joinChannel(
+    token: String?,
+    channelName: String?,
+    optionalInfo: String?,
+    optionalUid: Int
+  ): Int {
     return 0
   }
 
-  override fun joinChannel(token: String?, channelName: String?, optionalInfo: String?, optionalUid: Int, options: ChannelMediaOptions?): Int {
+  override fun joinChannel(
+    token: String?,
+    channelName: String?,
+    optionalInfo: String?,
+    optionalUid: Int,
+    options: ChannelMediaOptions?
+  ): Int {
     return 0
   }
 
@@ -46,7 +60,11 @@ class FakeRtcEngine : RtcEngineEx(), IAudioEffectManager {
     return 0
   }
 
-  override fun switchChannel(token: String?, channelName: String?, options: ChannelMediaOptions?): Int {
+  override fun switchChannel(
+    token: String?,
+    channelName: String?,
+    options: ChannelMediaOptions?
+  ): Int {
     return 0
   }
 
@@ -62,11 +80,20 @@ class FakeRtcEngine : RtcEngineEx(), IAudioEffectManager {
     return 0
   }
 
-  override fun joinChannelWithUserAccount(token: String?, channelName: String?, userAccount: String?): Int {
+  override fun joinChannelWithUserAccount(
+    token: String?,
+    channelName: String?,
+    userAccount: String?
+  ): Int {
     return 0
   }
 
-  override fun joinChannelWithUserAccount(token: String?, channelName: String?, userAccount: String?, options: ChannelMediaOptions?): Int {
+  override fun joinChannelWithUserAccount(
+    token: String?,
+    channelName: String?,
+    userAccount: String?,
+    options: ChannelMediaOptions?
+  ): Int {
     return 0
   }
 
@@ -114,7 +141,11 @@ class FakeRtcEngine : RtcEngineEx(), IAudioEffectManager {
     return 0
   }
 
-  override fun setHighQualityAudioParameters(fullband: Boolean, stereo: Boolean, fullBitrate: Boolean): Int {
+  override fun setHighQualityAudioParameters(
+    fullband: Boolean,
+    stereo: Boolean,
+    fullBitrate: Boolean
+  ): Int {
     return 0
   }
 
@@ -238,7 +269,10 @@ class FakeRtcEngine : RtcEngineEx(), IAudioEffectManager {
     return 0
   }
 
-  override fun enableVirtualBackground(enabled: Boolean, backgroundSource: VirtualBackgroundSource?): Int {
+  override fun enableVirtualBackground(
+    enabled: Boolean,
+    backgroundSource: VirtualBackgroundSource?
+  ): Int {
     return 0
   }
 
@@ -318,11 +352,22 @@ class FakeRtcEngine : RtcEngineEx(), IAudioEffectManager {
     return 0
   }
 
-  override fun startAudioMixing(filePath: String?, loopback: Boolean, replace: Boolean, cycle: Int): Int {
+  override fun startAudioMixing(
+    filePath: String?,
+    loopback: Boolean,
+    replace: Boolean,
+    cycle: Int
+  ): Int {
     return 0
   }
 
-  override fun startAudioMixing(filePath: String?, loopback: Boolean, replace: Boolean, cycle: Int, startPos: Int): Int {
+  override fun startAudioMixing(
+    filePath: String?,
+    loopback: Boolean,
+    replace: Boolean,
+    cycle: Int,
+    startPos: Int
+  ): Int {
     return 0
   }
 
@@ -422,6 +467,10 @@ class FakeRtcEngine : RtcEngineEx(), IAudioEffectManager {
     return 0
   }
 
+  override fun startEchoTest(config: EchoTestConfiguration?): Int {
+    return 0
+  }
+
   override fun stopEchoTest(): Int {
     return 0
   }
@@ -470,7 +519,14 @@ class FakeRtcEngine : RtcEngineEx(), IAudioEffectManager {
     return 0
   }
 
-  override fun pushExternalAudioFrame(data: ByteArray?, timestamp: Long, sampleRate: Int, channels: Int, bytesPerSample: Int, sourcePos: Int): Int {
+  override fun pushExternalAudioFrame(
+    data: ByteArray?,
+    timestamp: Long,
+    sampleRate: Int,
+    channels: Int,
+    bytesPerSample: Int,
+    sourcePos: Int
+  ): Int {
     return 0
   }
 
@@ -501,11 +557,21 @@ class FakeRtcEngine : RtcEngineEx(), IAudioEffectManager {
     return 0
   }
 
-  override fun setRecordingAudioFrameParameters(sampleRate: Int, channel: Int, mode: Int, samplesPerCall: Int): Int {
+  override fun setRecordingAudioFrameParameters(
+    sampleRate: Int,
+    channel: Int,
+    mode: Int,
+    samplesPerCall: Int
+  ): Int {
     return 0
   }
 
-  override fun setPlaybackAudioFrameParameters(sampleRate: Int, channel: Int, mode: Int, samplesPerCall: Int): Int {
+  override fun setPlaybackAudioFrameParameters(
+    sampleRate: Int,
+    channel: Int,
+    mode: Int,
+    samplesPerCall: Int
+  ): Int {
     return 0
   }
 
@@ -754,6 +820,14 @@ class FakeRtcEngine : RtcEngineEx(), IAudioEffectManager {
     return 0
   }
 
+  override fun takeSnapshot(channel: String?, uid: Int, filePath: String?): Int {
+    return 0
+  }
+
+  override fun enableContentInspect(enabled: Boolean, config: ContentInspectConfig?): Int {
+    return 0
+  }
+
   override fun setProfile(profile: String?, merge: Boolean): Int {
     return 0
   }
@@ -778,7 +852,12 @@ class FakeRtcEngine : RtcEngineEx(), IAudioEffectManager {
     return ""
   }
 
-  override fun makeQualityReportUrl(channel: String?, listenerUid: Int, speakerUid: Int, format: Int): String {
+  override fun makeQualityReportUrl(
+    channel: String?,
+    listenerUid: Int,
+    speakerUid: Int,
+    format: Int
+  ): String {
     return ""
   }
 
@@ -790,11 +869,23 @@ class FakeRtcEngine : RtcEngineEx(), IAudioEffectManager {
     return 0
   }
 
-  override fun setTextureId(id: Int, eglContext: EGLContext?, width: Int, height: Int, ts: Long): Int {
+  override fun setTextureId(
+    id: Int,
+    eglContext: EGLContext?,
+    width: Int,
+    height: Int,
+    ts: Long
+  ): Int {
     return 0
   }
 
-  override fun setTextureId(id: Int, eglContext: android.opengl.EGLContext?, width: Int, height: Int, ts: Long): Int {
+  override fun setTextureId(
+    id: Int,
+    eglContext: android.opengl.EGLContext?,
+    width: Int,
+    height: Int,
+    ts: Long
+  ): Int {
     return 0
   }
 
@@ -818,15 +909,39 @@ class FakeRtcEngine : RtcEngineEx(), IAudioEffectManager {
     return 0
   }
 
-  override fun playEffect(soundId: Int, filePath: String?, loop: Int, pitch: Double, pan: Double, gain: Double): Int {
+  override fun playEffect(
+    soundId: Int,
+    filePath: String?,
+    loop: Int,
+    pitch: Double,
+    pan: Double,
+    gain: Double
+  ): Int {
     return 0
   }
 
-  override fun playEffect(soundId: Int, filePath: String?, loopCount: Int, pitch: Double, pan: Double, gain: Double, publish: Boolean): Int {
+  override fun playEffect(
+    soundId: Int,
+    filePath: String?,
+    loopCount: Int,
+    pitch: Double,
+    pan: Double,
+    gain: Double,
+    publish: Boolean
+  ): Int {
     return 0
   }
 
-  override fun playEffect(soundId: Int, filePath: String?, loopCount: Int, pitch: Double, pan: Double, gain: Double, publish: Boolean, startPos: Int): Int {
+  override fun playEffect(
+    soundId: Int,
+    filePath: String?,
+    loopCount: Int,
+    pitch: Double,
+    pan: Double,
+    gain: Double,
+    publish: Boolean,
+    startPos: Int
+  ): Int {
     return 0
   }
 
@@ -874,7 +989,11 @@ class FakeRtcEngine : RtcEngineEx(), IAudioEffectManager {
     return 0
   }
 
-  override fun startRhythmPlayer(sound1: String?, sound2: String?, config: AgoraRhythmPlayerConfig?): Int {
+  override fun startRhythmPlayer(
+    sound1: String?,
+    sound2: String?,
+    config: AgoraRhythmPlayerConfig?
+  ): Int {
     return 0
   }
 
@@ -908,11 +1027,20 @@ class FakeRtcChannel : RtcChannel() {
     return 0
   }
 
-  override fun joinChannel(token: String?, optionalInfo: String?, optionalUid: Int, options: ChannelMediaOptions?): Int {
+  override fun joinChannel(
+    token: String?,
+    optionalInfo: String?,
+    optionalUid: Int,
+    options: ChannelMediaOptions?
+  ): Int {
     return 0
   }
 
-  override fun joinChannelWithUserAccount(token: String?, userAccount: String?, options: ChannelMediaOptions?): Int {
+  override fun joinChannelWithUserAccount(
+    token: String?,
+    userAccount: String?,
+    options: ChannelMediaOptions?
+  ): Int {
     return 0
   }
 
diff --git a/example/android/app/src/test/kotlin/io/agora/agora_rtc_engine_example/RtcEnginePluginTest.kt b/example/android/app/src/test/kotlin/io/agora/agora_rtc_engine_example/RtcEnginePluginTest.kt
index 978cba237..d0c6408b2 100644
--- a/example/android/app/src/test/kotlin/io/agora/agora_rtc_engine_example/RtcEnginePluginTest.kt
+++ b/example/android/app/src/test/kotlin/io/agora/agora_rtc_engine_example/RtcEnginePluginTest.kt
@@ -8,7 +8,10 @@ import org.junit.Before
 import org.junit.Test
 
 class FakeRtcEngineFactory(private val engine: RtcEngine) : RtcEngineFactory() {
-  override fun create(params: Map<String, *>, rtcEngineEventHandler: RtcEngineEventHandler): RtcEngine? {
+  override fun create(
+    params: Map<String, *>,
+    rtcEngineEventHandler: RtcEngineEventHandler
+  ): RtcEngine? {
     return engine
   }
 }
@@ -21,8 +24,9 @@ class RtcEnginePluginTest {
   fun setUp() {
     rtcEngine = FakeRtcEngine()
     rtcChannelManager = RtcEngineManager(
-      emit = {_: String, _: Map<String, Any?>? -> },
-      rtcEngineFactory = FakeRtcEngineFactory(rtcEngine))
+      emit = { _: String, _: Map<String, Any?>? -> },
+      rtcEngineFactory = FakeRtcEngineFactory(rtcEngine)
+    )
   }
 
   @Test
diff --git a/ios/Classes/Base/BeanCovertor.swift b/ios/Classes/Base/BeanCovertor.swift
index 2578b18a4..ae6c5240f 100644
--- a/ios/Classes/Base/BeanCovertor.swift
+++ b/ios/Classes/Base/BeanCovertor.swift
@@ -437,3 +437,20 @@ func mapToVirtualBackgroundSource(_ map: [String: Any]) -> AgoraVirtualBackgroun
     }
     return backgroundSource
 }
+
+func mapToEchoTestConfiguration(_ map: [String: Any]) -> AgoraEchoTestConfiguration {
+    let config = AgoraEchoTestConfiguration()
+    if let enableAudio = map["enableAudio"] as? NSNumber {
+        config.enableAudio = enableAudio.boolValue
+    }
+    if let enableVideo = map["enableVideo"] as? NSNumber {
+        config.enableVideo = enableVideo.boolValue
+    }
+    if let token = map["token"] as? String {
+        config.token = token
+    }
+    if let channelId = map["channelId"] as? String {
+        config.channelId = channelId
+    }
+    return config
+}
diff --git a/ios/Classes/Base/RtcChannelEvent.swift b/ios/Classes/Base/RtcChannelEvent.swift
index 69fa31e6f..eca5b4da8 100644
--- a/ios/Classes/Base/RtcChannelEvent.swift
+++ b/ios/Classes/Base/RtcChannelEvent.swift
@@ -223,27 +223,27 @@ extension RtcChannelEventHandler: AgoraRtcChannelDelegate {
         callback(RtcChannelEvents.ChannelMediaRelayEvent, rtcChannel, event.rawValue)
     }
 
-    func rtcChannel(_ rtcChannel: AgoraRtcChannel, didAudioPublishStateChange oldState: AgoraStreamPublishState, newState: AgoraStreamPublishState, elapseSinceLastState: Int) {
+    public func rtcChannel(_ rtcChannel: AgoraRtcChannel, didAudioPublishStateChange oldState: AgoraStreamPublishState, newState: AgoraStreamPublishState, elapseSinceLastState: Int) {
         callback(RtcChannelEvents.AudioPublishStateChanged, rtcChannel, rtcChannel.getId(), oldState.rawValue, newState.rawValue, elapseSinceLastState)
     }
 
-    func rtcChannel(_ rtcChannel: AgoraRtcChannel, didVideoPublishStateChange oldState: AgoraStreamPublishState, newState: AgoraStreamPublishState, elapseSinceLastState: Int) {
+    public func rtcChannel(_ rtcChannel: AgoraRtcChannel, didVideoPublishStateChange oldState: AgoraStreamPublishState, newState: AgoraStreamPublishState, elapseSinceLastState: Int) {
         callback(RtcChannelEvents.VideoPublishStateChanged, rtcChannel, rtcChannel.getId(), oldState.rawValue, newState.rawValue, elapseSinceLastState)
     }
 
-    func rtcChannel(_ rtcChannel: AgoraRtcChannel, didAudioSubscribeStateChange uid: UInt, oldState: AgoraStreamSubscribeState, newState: AgoraStreamSubscribeState, elapseSinceLastState: Int) {
+    public func rtcChannel(_ rtcChannel: AgoraRtcChannel, didAudioSubscribeStateChange uid: UInt, oldState: AgoraStreamSubscribeState, newState: AgoraStreamSubscribeState, elapseSinceLastState: Int) {
         callback(RtcChannelEvents.AudioSubscribeStateChanged, rtcChannel, rtcChannel.getId(), uid, oldState.rawValue, newState.rawValue, elapseSinceLastState)
     }
 
-    func rtcChannel(_ rtcChannel: AgoraRtcChannel, didVideoSubscribeStateChange uid: UInt, oldState: AgoraStreamSubscribeState, newState: AgoraStreamSubscribeState, elapseSinceLastState: Int) {
+    public func rtcChannel(_ rtcChannel: AgoraRtcChannel, didVideoSubscribeStateChange uid: UInt, oldState: AgoraStreamSubscribeState, newState: AgoraStreamSubscribeState, elapseSinceLastState: Int) {
         callback(RtcChannelEvents.VideoSubscribeStateChanged, rtcChannel, rtcChannel.getId(), uid, oldState.rawValue, newState.rawValue, elapseSinceLastState)
     }
 
-    func rtcChannel(_ rtcChannel: AgoraRtcChannel, rtmpStreamingEventWithUrl url: String, eventCode: AgoraRtmpStreamingEvent) {
+    public func rtcChannel(_ rtcChannel: AgoraRtcChannel, rtmpStreamingEventWithUrl url: String, eventCode: AgoraRtmpStreamingEvent) {
         callback(RtcChannelEvents.RtmpStreamingEvent, rtcChannel, url, eventCode.rawValue)
     }
 
-    func rtcChannel(_ rtcChannel: AgoraRtcChannel, superResolutionEnabledOfUid uid: UInt, enabled: Bool, reason: AgoraSuperResolutionStateReason) {
+    public func rtcChannel(_ rtcChannel: AgoraRtcChannel, superResolutionEnabledOfUid uid: UInt, enabled: Bool, reason: AgoraSuperResolutionStateReason) {
         callback(RtcChannelEvents.UserSuperResolutionEnabled, rtcChannel, uid, enabled, reason.rawValue)
     }
 }
diff --git a/ios/Classes/Base/RtcEngine.swift b/ios/Classes/Base/RtcEngine.swift
index 4b7f379e0..514ec50b9 100644
--- a/ios/Classes/Base/RtcEngine.swift
+++ b/ios/Classes/Base/RtcEngine.swift
@@ -86,6 +86,8 @@ protocol RtcEngineInterface:
     func setLocalAccessPoint(_ params: NSDictionary, _ callback: Callback)
 
     func enableVirtualBackground(_ params: NSDictionary, _ callback: Callback)
+    
+    func takeSnapshot(_ params: NSDictionary, _ callback: Callback)
 }
 
 protocol RtcEngineUserInfoInterface {
@@ -423,8 +425,10 @@ class RtcEngineManager: NSObject, RtcEngineInterface {
     }
 
     func Release() {
-        AgoraRtcEngineKit.destroy()
-        engine = nil
+        if (engine != nil) {
+            AgoraRtcEngineKit.destroy()
+            engine = nil
+        }
         delegate = nil
         mediaObserver = nil
     }
@@ -955,7 +959,15 @@ class RtcEngineManager: NSObject, RtcEngineInterface {
     }
 
     @objc func startEchoTest(_ params: NSDictionary, _ callback: Callback) {
-        callback.code(engine?.startEchoTest(withInterval: (params["intervalInSeconds"] as! NSNumber).intValue))
+        if let intervalInSeconds = (params["intervalInSeconds"] as? NSNumber) {
+            callback.code(engine?.startEchoTest(withInterval: intervalInSeconds.intValue))
+            return
+        }
+        if let config = (params["config"] as? [String: Any]) {
+            callback.code(engine?.startEchoTest(withConfig: mapToEchoTestConfiguration(config)))
+            return
+        }
+        callback.code(engine?.startEchoTest())
     }
 
     @objc func stopEchoTest(_ callback: Callback) {
@@ -1210,4 +1222,12 @@ class RtcEngineManager: NSObject, RtcEngineInterface {
     @objc func enableVirtualBackground(_ params: NSDictionary, _ callback: Callback) {
         callback.code(engine?.enableVirtualBackground(params["enabled"] as! Bool, backData: mapToVirtualBackgroundSource(params["backgroundSource"] as! [String: Any])))
     }
+    
+    @objc func takeSnapshot(_ params: NSDictionary, _ callback: Callback) {
+        var code: Int32?
+        if let ret = engine?.takeSnapshot(params["channel"] as! String, uid: (params["uid"] as! NSNumber).intValue, filePath: params["filePath"] as! String) {
+            code = Int32(ret);
+        }
+        callback.code(code)
+    }
 }
diff --git a/ios/Classes/Base/RtcEngineEvent.swift b/ios/Classes/Base/RtcEngineEvent.swift
index 61a9825fb..dd4f555ed 100644
--- a/ios/Classes/Base/RtcEngineEvent.swift
+++ b/ios/Classes/Base/RtcEngineEvent.swift
@@ -92,6 +92,7 @@ class RtcEngineEvents {
     static let UploadLogResult = "UploadLogResult"
     static let AirPlayIsConnected = "AirPlayIsConnected"
     static let VirtualBackgroundSourceEnabled = "VirtualBackgroundSourceEnabled"
+    static let SnapshotTaken = "SnapshotTaken"
 
     static func toMap() -> [String: String] {
         return [
@@ -177,6 +178,7 @@ class RtcEngineEvents {
             "UploadLogResult": UploadLogResult,
             "AirPlayIsConnected": AirPlayIsConnected,
             "VirtualBackgroundSourceEnabled": VirtualBackgroundSourceEnabled,
+            "SnapshotTaken": SnapshotTaken,
         ]
     }
 }
@@ -299,8 +301,8 @@ extension RtcEngineEventHandler: AgoraRtcEngineDelegate {
     public func rtcEngine(_: AgoraRtcEngineKit, localAudioStateChange state: AgoraAudioLocalState, error: AgoraAudioLocalError) {
         callback(RtcEngineEvents.LocalAudioStateChanged, state.rawValue, error.rawValue)
     }
-    
-    func rtcEngine(_ engine: AgoraRtcEngineKit, didRequest info: AgoraRtcAudioFileInfo, error: AgoraAudioFileInfoError) {
+
+    public func rtcEngine(_ engine: AgoraRtcEngineKit, didRequest info: AgoraRtcAudioFileInfo, error: AgoraAudioFileInfoError) {
         callback(RtcEngineEvents.RequestAudioFileInfo, info.toMap(), error.rawValue)
     }
 
@@ -324,7 +326,7 @@ extension RtcEngineEventHandler: AgoraRtcEngineDelegate {
         callback(RtcEngineEvents.CameraExposureAreaChanged, rect.toMap())
     }
 
-    func rtcEngine(_: AgoraRtcEngineKit, facePositionDidChangeWidth width: Int32, previewHeight height: Int32, faces: [AgoraFacePositionInfo]?) {
+    public func rtcEngine(_: AgoraRtcEngineKit, facePositionDidChangeWidth width: Int32, previewHeight height: Int32, faces: [AgoraFacePositionInfo]?) {
         callback(RtcEngineEvents.FacePositionChanged, width, height, faces?.toMapList())
     }
 
@@ -364,7 +366,7 @@ extension RtcEngineEventHandler: AgoraRtcEngineDelegate {
         callback(RtcEngineEvents.AudioMixingFinished)
     }
 
-    func rtcEngine(_: AgoraRtcEngineKit, localAudioMixingStateDidChanged state: AgoraAudioMixingStateCode, reason: AgoraAudioMixingReasonCode) {
+    public func rtcEngine(_: AgoraRtcEngineKit, localAudioMixingStateDidChanged state: AgoraAudioMixingStateCode, reason: AgoraAudioMixingReasonCode) {
         callback(RtcEngineEvents.AudioMixingStateChanged, state.rawValue, reason.rawValue)
     }
 
@@ -484,47 +486,51 @@ extension RtcEngineEventHandler: AgoraRtcEngineDelegate {
         callback(RtcEngineEvents.VideoStopped)
     }
 
-    func rtcEngine(_: AgoraRtcEngineKit, firstLocalAudioFramePublished elapsed: Int) {
+    public func rtcEngine(_: AgoraRtcEngineKit, firstLocalAudioFramePublished elapsed: Int) {
         callback(RtcEngineEvents.FirstLocalAudioFramePublished, elapsed)
     }
 
-    func rtcEngine(_: AgoraRtcEngineKit, firstLocalVideoFramePublished elapsed: Int) {
+    public func rtcEngine(_: AgoraRtcEngineKit, firstLocalVideoFramePublished elapsed: Int) {
         callback(RtcEngineEvents.FirstLocalVideoFramePublished, elapsed)
     }
 
-    func rtcEngine(_: AgoraRtcEngineKit, didAudioPublishStateChange channel: String, oldState: AgoraStreamPublishState, newState: AgoraStreamPublishState, elapseSinceLastState: Int) {
+    public func rtcEngine(_: AgoraRtcEngineKit, didAudioPublishStateChange channel: String, oldState: AgoraStreamPublishState, newState: AgoraStreamPublishState, elapseSinceLastState: Int) {
         callback(RtcEngineEvents.AudioPublishStateChanged, channel, oldState.rawValue, newState.rawValue, elapseSinceLastState)
     }
 
-    func rtcEngine(_: AgoraRtcEngineKit, didVideoPublishStateChange channel: String, oldState: AgoraStreamPublishState, newState: AgoraStreamPublishState, elapseSinceLastState: Int) {
+    public func rtcEngine(_: AgoraRtcEngineKit, didVideoPublishStateChange channel: String, oldState: AgoraStreamPublishState, newState: AgoraStreamPublishState, elapseSinceLastState: Int) {
         callback(RtcEngineEvents.VideoPublishStateChanged, channel, oldState.rawValue, newState.rawValue, elapseSinceLastState)
     }
 
-    func rtcEngine(_: AgoraRtcEngineKit, didAudioSubscribeStateChange channel: String, withUid uid: UInt, oldState: AgoraStreamSubscribeState, newState: AgoraStreamSubscribeState, elapseSinceLastState: Int) {
+    public func rtcEngine(_: AgoraRtcEngineKit, didAudioSubscribeStateChange channel: String, withUid uid: UInt, oldState: AgoraStreamSubscribeState, newState: AgoraStreamSubscribeState, elapseSinceLastState: Int) {
         callback(RtcEngineEvents.AudioSubscribeStateChanged, channel, uid, oldState.rawValue, newState.rawValue, elapseSinceLastState)
     }
 
-    func rtcEngine(_: AgoraRtcEngineKit, didVideoSubscribeStateChange channel: String, withUid uid: UInt, oldState: AgoraStreamSubscribeState, newState: AgoraStreamSubscribeState, elapseSinceLastState: Int) {
+    public func rtcEngine(_: AgoraRtcEngineKit, didVideoSubscribeStateChange channel: String, withUid uid: UInt, oldState: AgoraStreamSubscribeState, newState: AgoraStreamSubscribeState, elapseSinceLastState: Int) {
         callback(RtcEngineEvents.VideoSubscribeStateChanged, channel, uid, oldState.rawValue, newState.rawValue, elapseSinceLastState)
     }
 
-    func rtcEngine(_: AgoraRtcEngineKit, rtmpStreamingEventWithUrl url: String, eventCode: AgoraRtmpStreamingEvent) {
+    public func rtcEngine(_: AgoraRtcEngineKit, rtmpStreamingEventWithUrl url: String, eventCode: AgoraRtmpStreamingEvent) {
         callback(RtcEngineEvents.RtmpStreamingEvent, url, eventCode.rawValue)
     }
 
-    func rtcEngine(_: AgoraRtcEngineKit, superResolutionEnabledOfUid uid: UInt, enabled: Bool, reason: AgoraSuperResolutionStateReason) {
+    public func rtcEngine(_: AgoraRtcEngineKit, superResolutionEnabledOfUid uid: UInt, enabled: Bool, reason: AgoraSuperResolutionStateReason) {
         callback(RtcEngineEvents.UserSuperResolutionEnabled, uid, enabled, reason.rawValue)
     }
 
-    func rtcEngine(_: AgoraRtcEngineKit, uploadLogResultRequestId requestId: String, success: Bool, reason: AgoraUploadErrorReason) {
+    public func rtcEngine(_: AgoraRtcEngineKit, uploadLogResultRequestId requestId: String, success: Bool, reason: AgoraUploadErrorReason) {
         callback(RtcEngineEvents.UploadLogResult, requestId, success, reason.rawValue)
     }
 
-    func rtcEngineAirPlayIsConnected(_ engine: AgoraRtcEngineKit) {
+    public func rtcEngineAirPlayIsConnected(_ engine: AgoraRtcEngineKit) {
         callback(RtcEngineEvents.AirPlayIsConnected)
     }
 
-    func rtcEngine(_ engine: AgoraRtcEngineKit, virtualBackgroundSourceEnabled enabled: Bool, reason: AgoraVirtualBackgroundSourceStateReason) {
+    public func rtcEngine(_ engine: AgoraRtcEngineKit, virtualBackgroundSourceEnabled enabled: Bool, reason: AgoraVirtualBackgroundSourceStateReason) {
         callback(RtcEngineEvents.VirtualBackgroundSourceEnabled, enabled, reason.rawValue)
     }
+
+    public func rtcEngine(_ engine: AgoraRtcEngineKit, snapshotTaken channel: String, uid: UInt, filePath: String, width: Int, height: Int, errCode: Int) {
+        callback(RtcEngineEvents.SnapshotTaken, channel, uid, filePath, width, height, errCode)
+    }
 }
diff --git a/ios/agora_rtc_engine.podspec b/ios/agora_rtc_engine.podspec
index 759550c1c..ab9cdab23 100644
--- a/ios/agora_rtc_engine.podspec
+++ b/ios/agora_rtc_engine.podspec
@@ -17,7 +17,7 @@ Pod::Spec.new do |s|
   s.source           = { :path => '.' }
   s.source_files = 'Classes/**/*'
   s.dependency 'Flutter'
-  s.dependency 'AgoraRtcEngine_iOS', '3.5.1'
+  s.dependency 'AgoraRtcEngine_iOS', '3.5.2'
   s.platform = :ios, '8.0'
 
   # Flutter.framework does not contain a i386 slice.
diff --git a/lib/src/classes.dart b/lib/src/classes.dart
index 5c21970fd..6387d3a99 100644
--- a/lib/src/classes.dart
+++ b/lib/src/classes.dart
@@ -1662,12 +1662,6 @@ class VirtualBackgroundSource {
 /// The information of an audio file, which is reported in [RtcEngineEventHandler.requestAudioFileInfoCallback].
 @JsonSerializable(explicitToJson: true)
 class AudioFileInfo {
-  /// Construct the [AudioFileInfo]
-  AudioFileInfo({
-    required this.filePath,
-    required this.durationMs,
-  });
-
   /// The file path.
   @JsonKey()
   String filePath;
@@ -1676,6 +1670,12 @@ class AudioFileInfo {
   @JsonKey()
   int durationMs;
 
+  /// Construct the [AudioFileInfo]
+  AudioFileInfo({
+    required this.filePath,
+    required this.durationMs,
+  });
+
   /// @nodoc
   factory AudioFileInfo.fromJson(Map<String, dynamic> json) =>
       _$AudioFileInfoFromJson(json);
@@ -1683,3 +1683,50 @@ class AudioFileInfo {
   /// @nodoc
   Map<String, dynamic> toJson() => _$AudioFileInfoToJson(this);
 }
+
+/// The configuration of the audio and video call loop test.
+///
+/// @since v3.5.2
+@JsonSerializable(explicitToJson: true)
+class EchoTestConfiguration {
+  /// Whether to enable the audio device for the call loop test:
+  /// - true: (Default) Enables the audio device. To test the audio device, set this parameter as `true`.
+  /// - false: Disables the audio device.
+  @JsonKey(includeIfNull: false)
+  bool? enableAudio;
+
+  /// Whether to enable the video device for the call loop test:
+  /// - true: (Default) Enables the video device. To test the video device, set this parameter as `true`.
+  /// - false: Disables the video device.
+  @JsonKey(includeIfNull: false)
+  bool? enableVideo;
+
+  /// The token used to secure the audio and video call loop test. If you do not enable App Certificate in Agora
+  /// Console, you do not need to pass a value in this parameter; if you have enabled App Certificate in Agora Console,
+  /// you must pass a token in this parameter, the `uid` used when you generate the token must be 0xFFFFFFFF, and the
+  /// channel name used must be the channel name that identifies each audio and video call loop tested. For server-side
+  /// token generation, see [Authenticate Your Users with Tokens](https://docs.agora.io/en/Interactive%20Broadcast/token_server?platform=All%20Platforms).
+  @JsonKey(includeIfNull: false)
+  String? token;
+
+  /// The channel name that identifies each audio and video call loop. To ensure proper loop test functionality, the
+  /// channel name passed in to identify each loop test cannot be the same when users of the same project (App ID)
+  /// perform audio and video call loop tests on different devices.
+  @JsonKey(includeIfNull: false)
+  String? channelId;
+
+  /// Construct the [EchoTestConfiguration]
+  EchoTestConfiguration({
+    this.enableAudio,
+    this.enableVideo,
+    this.token,
+    this.channelId,
+  });
+
+  /// @nodoc
+  factory EchoTestConfiguration.fromJson(Map<String, dynamic> json) =>
+      _$EchoTestConfigurationFromJson(json);
+
+  /// @nodoc
+  Map<String, dynamic> toJson() => _$EchoTestConfigurationToJson(this);
+}
diff --git a/lib/src/classes.g.dart b/lib/src/classes.g.dart
index b92d01ee0..69a6f426f 100644
--- a/lib/src/classes.g.dart
+++ b/lib/src/classes.g.dart
@@ -6,24 +6,21 @@ part of 'classes.dart';
 // JsonSerializableGenerator
 // **************************************************************************
 
-UserInfo _$UserInfoFromJson(Map<String, dynamic> json) {
-  return UserInfo(
-    json['uid'] as int,
-    json['userAccount'] as String,
-  );
-}
+UserInfo _$UserInfoFromJson(Map<String, dynamic> json) => UserInfo(
+      json['uid'] as int,
+      json['userAccount'] as String,
+    );
 
 Map<String, dynamic> _$UserInfoToJson(UserInfo instance) => <String, dynamic>{
       'uid': instance.uid,
       'userAccount': instance.userAccount,
     };
 
-VideoDimensions _$VideoDimensionsFromJson(Map<String, dynamic> json) {
-  return VideoDimensions(
-    width: json['width'] as int?,
-    height: json['height'] as int?,
-  );
-}
+VideoDimensions _$VideoDimensionsFromJson(Map<String, dynamic> json) =>
+    VideoDimensions(
+      width: json['width'] as int?,
+      height: json['height'] as int?,
+    );
 
 Map<String, dynamic> _$VideoDimensionsToJson(VideoDimensions instance) {
   final val = <String, dynamic>{};
@@ -40,24 +37,25 @@ Map<String, dynamic> _$VideoDimensionsToJson(VideoDimensions instance) {
 }
 
 VideoEncoderConfiguration _$VideoEncoderConfigurationFromJson(
-    Map<String, dynamic> json) {
-  return VideoEncoderConfiguration(
-    dimensions: json['dimensions'] == null
-        ? null
-        : VideoDimensions.fromJson(json['dimensions'] as Map<String, dynamic>),
-    frameRate: _$enumDecodeNullable(_$VideoFrameRateEnumMap, json['frameRate']),
-    minFrameRate:
-        _$enumDecodeNullable(_$VideoFrameRateEnumMap, json['minFrameRate']),
-    bitrate: json['bitrate'] as int?,
-    minBitrate: json['minBitrate'] as int?,
-    orientationMode: _$enumDecodeNullable(
-        _$VideoOutputOrientationModeEnumMap, json['orientationMode']),
-    degradationPrefer: _$enumDecodeNullable(
-        _$DegradationPreferenceEnumMap, json['degradationPrefer']),
-    mirrorMode:
-        _$enumDecodeNullable(_$VideoMirrorModeEnumMap, json['mirrorMode']),
-  );
-}
+        Map<String, dynamic> json) =>
+    VideoEncoderConfiguration(
+      dimensions: json['dimensions'] == null
+          ? null
+          : VideoDimensions.fromJson(
+              json['dimensions'] as Map<String, dynamic>),
+      frameRate:
+          $enumDecodeNullable(_$VideoFrameRateEnumMap, json['frameRate']),
+      minFrameRate:
+          $enumDecodeNullable(_$VideoFrameRateEnumMap, json['minFrameRate']),
+      bitrate: json['bitrate'] as int?,
+      minBitrate: json['minBitrate'] as int?,
+      orientationMode: $enumDecodeNullable(
+          _$VideoOutputOrientationModeEnumMap, json['orientationMode']),
+      degradationPrefer: $enumDecodeNullable(
+          _$DegradationPreferenceEnumMap, json['degradationPrefer']),
+      mirrorMode:
+          $enumDecodeNullable(_$VideoMirrorModeEnumMap, json['mirrorMode']),
+    );
 
 Map<String, dynamic> _$VideoEncoderConfigurationToJson(
     VideoEncoderConfiguration instance) {
@@ -82,43 +80,6 @@ Map<String, dynamic> _$VideoEncoderConfigurationToJson(
   return val;
 }
 
-K _$enumDecode<K, V>(
-  Map<K, V> enumValues,
-  Object? source, {
-  K? unknownValue,
-}) {
-  if (source == null) {
-    throw ArgumentError(
-      'A value must be provided. Supported values: '
-      '${enumValues.values.join(', ')}',
-    );
-  }
-
-  return enumValues.entries.singleWhere(
-    (e) => e.value == source,
-    orElse: () {
-      if (unknownValue == null) {
-        throw ArgumentError(
-          '`$source` is not one of the supported values: '
-          '${enumValues.values.join(', ')}',
-        );
-      }
-      return MapEntry(unknownValue, enumValues.values.first);
-    },
-  ).key;
-}
-
-K? _$enumDecodeNullable<K, V>(
-  Map<K, V> enumValues,
-  dynamic source, {
-  K? unknownValue,
-}) {
-  if (source == null) {
-    return null;
-  }
-  return _$enumDecode<K, V>(enumValues, source, unknownValue: unknownValue);
-}
-
 const _$VideoFrameRateEnumMap = {
   VideoFrameRate.Min: -1,
   VideoFrameRate.Fps1: 1,
@@ -148,15 +109,14 @@ const _$VideoMirrorModeEnumMap = {
   VideoMirrorMode.Disabled: 2,
 };
 
-BeautyOptions _$BeautyOptionsFromJson(Map<String, dynamic> json) {
-  return BeautyOptions(
-    lighteningContrastLevel: _$enumDecodeNullable(
-        _$LighteningContrastLevelEnumMap, json['lighteningContrastLevel']),
-    lighteningLevel: (json['lighteningLevel'] as num?)?.toDouble(),
-    smoothnessLevel: (json['smoothnessLevel'] as num?)?.toDouble(),
-    rednessLevel: (json['rednessLevel'] as num?)?.toDouble(),
-  );
-}
+BeautyOptions _$BeautyOptionsFromJson(Map<String, dynamic> json) =>
+    BeautyOptions(
+      lighteningContrastLevel: $enumDecodeNullable(
+          _$LighteningContrastLevelEnumMap, json['lighteningContrastLevel']),
+      lighteningLevel: (json['lighteningLevel'] as num?)?.toDouble(),
+      smoothnessLevel: (json['smoothnessLevel'] as num?)?.toDouble(),
+      rednessLevel: (json['rednessLevel'] as num?)?.toDouble(),
+    );
 
 Map<String, dynamic> _$BeautyOptionsToJson(BeautyOptions instance) {
   final val = <String, dynamic>{};
@@ -181,15 +141,13 @@ const _$LighteningContrastLevelEnumMap = {
   LighteningContrastLevel.High: 2,
 };
 
-AgoraImage _$AgoraImageFromJson(Map<String, dynamic> json) {
-  return AgoraImage(
-    json['url'] as String,
-    x: json['x'] as int?,
-    y: json['y'] as int?,
-    width: json['width'] as int?,
-    height: json['height'] as int?,
-  );
-}
+AgoraImage _$AgoraImageFromJson(Map<String, dynamic> json) => AgoraImage(
+      json['url'] as String,
+      x: json['x'] as int?,
+      y: json['y'] as int?,
+      width: json['width'] as int?,
+      height: json['height'] as int?,
+    );
 
 Map<String, dynamic> _$AgoraImageToJson(AgoraImage instance) {
   final val = <String, dynamic>{
@@ -209,19 +167,18 @@ Map<String, dynamic> _$AgoraImageToJson(AgoraImage instance) {
   return val;
 }
 
-TranscodingUser _$TranscodingUserFromJson(Map<String, dynamic> json) {
-  return TranscodingUser(
-    json['uid'] as int,
-    x: json['x'] as int?,
-    y: json['y'] as int?,
-    width: json['width'] as int?,
-    height: json['height'] as int?,
-    zOrder: json['zOrder'] as int?,
-    alpha: (json['alpha'] as num?)?.toDouble(),
-    audioChannel:
-        _$enumDecodeNullable(_$AudioChannelEnumMap, json['audioChannel']),
-  );
-}
+TranscodingUser _$TranscodingUserFromJson(Map<String, dynamic> json) =>
+    TranscodingUser(
+      json['uid'] as int,
+      x: json['x'] as int?,
+      y: json['y'] as int?,
+      width: json['width'] as int?,
+      height: json['height'] as int?,
+      zOrder: json['zOrder'] as int?,
+      alpha: (json['alpha'] as num?)?.toDouble(),
+      audioChannel:
+          $enumDecodeNullable(_$AudioChannelEnumMap, json['audioChannel']),
+    );
 
 Map<String, dynamic> _$TranscodingUserToJson(TranscodingUser instance) {
   final val = <String, dynamic>{
@@ -253,38 +210,38 @@ const _$AudioChannelEnumMap = {
   AudioChannel.Channel5: 5,
 };
 
-LiveTranscoding _$LiveTranscodingFromJson(Map<String, dynamic> json) {
-  return LiveTranscoding(
-    (json['transcodingUsers'] as List<dynamic>)
-        .map((e) => TranscodingUser.fromJson(e as Map<String, dynamic>))
-        .toList(),
-    width: json['width'] as int?,
-    height: json['height'] as int?,
-    videoBitrate: json['videoBitrate'] as int?,
-    videoFramerate:
-        _$enumDecodeNullable(_$VideoFrameRateEnumMap, json['videoFramerate']),
-    lowLatency: json['lowLatency'] as bool?,
-    videoGop: json['videoGop'] as int?,
-    watermark: json['watermark'] == null
-        ? null
-        : AgoraImage.fromJson(json['watermark'] as Map<String, dynamic>),
-    backgroundImage: json['backgroundImage'] == null
-        ? null
-        : AgoraImage.fromJson(json['backgroundImage'] as Map<String, dynamic>),
-    audioSampleRate: _$enumDecodeNullable(
-        _$AudioSampleRateTypeEnumMap, json['audioSampleRate']),
-    audioBitrate: json['audioBitrate'] as int?,
-    audioChannels:
-        _$enumDecodeNullable(_$AudioChannelEnumMap, json['audioChannels']),
-    audioCodecProfile: _$enumDecodeNullable(
-        _$AudioCodecProfileTypeEnumMap, json['audioCodecProfile']),
-    videoCodecProfile: _$enumDecodeNullable(
-        _$VideoCodecProfileTypeEnumMap, json['videoCodecProfile']),
-    backgroundColor:
-        _$ColorFromJson(json['backgroundColor'] as Map<String, dynamic>),
-    userConfigExtraInfo: json['userConfigExtraInfo'] as String?,
-  );
-}
+LiveTranscoding _$LiveTranscodingFromJson(Map<String, dynamic> json) =>
+    LiveTranscoding(
+      (json['transcodingUsers'] as List<dynamic>)
+          .map((e) => TranscodingUser.fromJson(e as Map<String, dynamic>))
+          .toList(),
+      width: json['width'] as int?,
+      height: json['height'] as int?,
+      videoBitrate: json['videoBitrate'] as int?,
+      videoFramerate:
+          $enumDecodeNullable(_$VideoFrameRateEnumMap, json['videoFramerate']),
+      lowLatency: json['lowLatency'] as bool?,
+      videoGop: json['videoGop'] as int?,
+      watermark: json['watermark'] == null
+          ? null
+          : AgoraImage.fromJson(json['watermark'] as Map<String, dynamic>),
+      backgroundImage: json['backgroundImage'] == null
+          ? null
+          : AgoraImage.fromJson(
+              json['backgroundImage'] as Map<String, dynamic>),
+      audioSampleRate: $enumDecodeNullable(
+          _$AudioSampleRateTypeEnumMap, json['audioSampleRate']),
+      audioBitrate: json['audioBitrate'] as int?,
+      audioChannels:
+          $enumDecodeNullable(_$AudioChannelEnumMap, json['audioChannels']),
+      audioCodecProfile: $enumDecodeNullable(
+          _$AudioCodecProfileTypeEnumMap, json['audioCodecProfile']),
+      videoCodecProfile: $enumDecodeNullable(
+          _$VideoCodecProfileTypeEnumMap, json['videoCodecProfile']),
+      backgroundColor:
+          _$ColorFromJson(json['backgroundColor'] as Map<String, dynamic>),
+      userConfigExtraInfo: json['userConfigExtraInfo'] as String?,
+    );
 
 Map<String, dynamic> _$LiveTranscodingToJson(LiveTranscoding instance) {
   final val = <String, dynamic>{};
@@ -336,13 +293,12 @@ const _$VideoCodecProfileTypeEnumMap = {
   VideoCodecProfileType.High: 100,
 };
 
-ChannelMediaInfo _$ChannelMediaInfoFromJson(Map<String, dynamic> json) {
-  return ChannelMediaInfo(
-    json['channelName'] as String,
-    json['uid'] as int,
-    token: json['token'] as String?,
-  );
-}
+ChannelMediaInfo _$ChannelMediaInfoFromJson(Map<String, dynamic> json) =>
+    ChannelMediaInfo(
+      json['channelName'] as String,
+      json['uid'] as int,
+      token: json['token'] as String?,
+    );
 
 Map<String, dynamic> _$ChannelMediaInfoToJson(ChannelMediaInfo instance) {
   final val = <String, dynamic>{
@@ -361,14 +317,13 @@ Map<String, dynamic> _$ChannelMediaInfoToJson(ChannelMediaInfo instance) {
 }
 
 ChannelMediaRelayConfiguration _$ChannelMediaRelayConfigurationFromJson(
-    Map<String, dynamic> json) {
-  return ChannelMediaRelayConfiguration(
-    ChannelMediaInfo.fromJson(json['srcInfo'] as Map<String, dynamic>),
-    (json['destInfos'] as List<dynamic>)
-        .map((e) => ChannelMediaInfo.fromJson(e as Map<String, dynamic>))
-        .toList(),
-  );
-}
+        Map<String, dynamic> json) =>
+    ChannelMediaRelayConfiguration(
+      ChannelMediaInfo.fromJson(json['srcInfo'] as Map<String, dynamic>),
+      (json['destInfos'] as List<dynamic>)
+          .map((e) => ChannelMediaInfo.fromJson(e as Map<String, dynamic>))
+          .toList(),
+    );
 
 Map<String, dynamic> _$ChannelMediaRelayConfigurationToJson(
         ChannelMediaRelayConfiguration instance) =>
@@ -377,14 +332,13 @@ Map<String, dynamic> _$ChannelMediaRelayConfigurationToJson(
       'destInfos': instance.destInfos.map((e) => e.toJson()).toList(),
     };
 
-LastmileProbeConfig _$LastmileProbeConfigFromJson(Map<String, dynamic> json) {
-  return LastmileProbeConfig(
-    json['probeUplink'] as bool,
-    json['probeDownlink'] as bool,
-    json['expectedUplinkBitrate'] as int,
-    json['expectedDownlinkBitrate'] as int,
-  );
-}
+LastmileProbeConfig _$LastmileProbeConfigFromJson(Map<String, dynamic> json) =>
+    LastmileProbeConfig(
+      json['probeUplink'] as bool,
+      json['probeDownlink'] as bool,
+      json['expectedUplinkBitrate'] as int,
+      json['expectedDownlinkBitrate'] as int,
+    );
 
 Map<String, dynamic> _$LastmileProbeConfigToJson(
         LastmileProbeConfig instance) =>
@@ -395,14 +349,12 @@ Map<String, dynamic> _$LastmileProbeConfigToJson(
       'expectedDownlinkBitrate': instance.expectedDownlinkBitrate,
     };
 
-Rectangle _$RectangleFromJson(Map<String, dynamic> json) {
-  return Rectangle(
-    x: json['x'] as int?,
-    y: json['y'] as int?,
-    width: json['width'] as int?,
-    height: json['height'] as int?,
-  );
-}
+Rectangle _$RectangleFromJson(Map<String, dynamic> json) => Rectangle(
+      x: json['x'] as int?,
+      y: json['y'] as int?,
+      width: json['width'] as int?,
+      height: json['height'] as int?,
+    );
 
 Map<String, dynamic> _$RectangleToJson(Rectangle instance) {
   final val = <String, dynamic>{};
@@ -420,19 +372,18 @@ Map<String, dynamic> _$RectangleToJson(Rectangle instance) {
   return val;
 }
 
-WatermarkOptions _$WatermarkOptionsFromJson(Map<String, dynamic> json) {
-  return WatermarkOptions(
-    visibleInPreview: json['visibleInPreview'] as bool?,
-    positionInLandscapeMode: json['positionInLandscapeMode'] == null
-        ? null
-        : Rectangle.fromJson(
-            json['positionInLandscapeMode'] as Map<String, dynamic>),
-    positionInPortraitMode: json['positionInPortraitMode'] == null
-        ? null
-        : Rectangle.fromJson(
-            json['positionInPortraitMode'] as Map<String, dynamic>),
-  );
-}
+WatermarkOptions _$WatermarkOptionsFromJson(Map<String, dynamic> json) =>
+    WatermarkOptions(
+      visibleInPreview: json['visibleInPreview'] as bool?,
+      positionInLandscapeMode: json['positionInLandscapeMode'] == null
+          ? null
+          : Rectangle.fromJson(
+              json['positionInLandscapeMode'] as Map<String, dynamic>),
+      positionInPortraitMode: json['positionInPortraitMode'] == null
+          ? null
+          : Rectangle.fromJson(
+              json['positionInPortraitMode'] as Map<String, dynamic>),
+    );
 
 Map<String, dynamic> _$WatermarkOptionsToJson(WatermarkOptions instance) {
   final val = <String, dynamic>{};
@@ -452,21 +403,20 @@ Map<String, dynamic> _$WatermarkOptionsToJson(WatermarkOptions instance) {
 }
 
 LiveInjectStreamConfig _$LiveInjectStreamConfigFromJson(
-    Map<String, dynamic> json) {
-  return LiveInjectStreamConfig(
-    width: json['width'] as int?,
-    height: json['height'] as int?,
-    videoGop: json['videoGop'] as int?,
-    videoFramerate:
-        _$enumDecodeNullable(_$VideoFrameRateEnumMap, json['videoFramerate']),
-    videoBitrate: json['videoBitrate'] as int?,
-    audioSampleRate: _$enumDecodeNullable(
-        _$AudioSampleRateTypeEnumMap, json['audioSampleRate']),
-    audioBitrate: json['audioBitrate'] as int?,
-    audioChannels:
-        _$enumDecodeNullable(_$AudioChannelEnumMap, json['audioChannels']),
-  );
-}
+        Map<String, dynamic> json) =>
+    LiveInjectStreamConfig(
+      width: json['width'] as int?,
+      height: json['height'] as int?,
+      videoGop: json['videoGop'] as int?,
+      videoFramerate:
+          $enumDecodeNullable(_$VideoFrameRateEnumMap, json['videoFramerate']),
+      videoBitrate: json['videoBitrate'] as int?,
+      audioSampleRate: $enumDecodeNullable(
+          _$AudioSampleRateTypeEnumMap, json['audioSampleRate']),
+      audioBitrate: json['audioBitrate'] as int?,
+      audioChannels:
+          $enumDecodeNullable(_$AudioChannelEnumMap, json['audioChannels']),
+    );
 
 Map<String, dynamic> _$LiveInjectStreamConfigToJson(
     LiveInjectStreamConfig instance) {
@@ -492,16 +442,15 @@ Map<String, dynamic> _$LiveInjectStreamConfigToJson(
 }
 
 CameraCapturerConfiguration _$CameraCapturerConfigurationFromJson(
-    Map<String, dynamic> json) {
-  return CameraCapturerConfiguration(
-    preference: _$enumDecodeNullable(
-        _$CameraCaptureOutputPreferenceEnumMap, json['preference']),
-    captureWidth: json['captureWidth'] as int?,
-    captureHeight: json['captureHeight'] as int?,
-    cameraDirection:
-        _$enumDecodeNullable(_$CameraDirectionEnumMap, json['cameraDirection']),
-  );
-}
+        Map<String, dynamic> json) =>
+    CameraCapturerConfiguration(
+      preference: $enumDecodeNullable(
+          _$CameraCaptureOutputPreferenceEnumMap, json['preference']),
+      captureWidth: json['captureWidth'] as int?,
+      captureHeight: json['captureHeight'] as int?,
+      cameraDirection: $enumDecodeNullable(
+          _$CameraDirectionEnumMap, json['cameraDirection']),
+    );
 
 Map<String, dynamic> _$CameraCapturerConfigurationToJson(
     CameraCapturerConfiguration instance) {
@@ -534,14 +483,13 @@ const _$CameraDirectionEnumMap = {
   CameraDirection.Front: 1,
 };
 
-ChannelMediaOptions _$ChannelMediaOptionsFromJson(Map<String, dynamic> json) {
-  return ChannelMediaOptions(
-    autoSubscribeAudio: json['autoSubscribeAudio'] as bool?,
-    autoSubscribeVideo: json['autoSubscribeVideo'] as bool?,
-    publishLocalAudio: json['publishLocalAudio'] as bool?,
-    publishLocalVideo: json['publishLocalVideo'] as bool?,
-  );
-}
+ChannelMediaOptions _$ChannelMediaOptionsFromJson(Map<String, dynamic> json) =>
+    ChannelMediaOptions(
+      autoSubscribeAudio: json['autoSubscribeAudio'] as bool?,
+      autoSubscribeVideo: json['autoSubscribeVideo'] as bool?,
+      publishLocalAudio: json['publishLocalAudio'] as bool?,
+      publishLocalVideo: json['publishLocalVideo'] as bool?,
+    );
 
 Map<String, dynamic> _$ChannelMediaOptionsToJson(ChannelMediaOptions instance) {
   final val = <String, dynamic>{};
@@ -559,16 +507,15 @@ Map<String, dynamic> _$ChannelMediaOptionsToJson(ChannelMediaOptions instance) {
   return val;
 }
 
-EncryptionConfig _$EncryptionConfigFromJson(Map<String, dynamic> json) {
-  return EncryptionConfig(
-    encryptionMode:
-        _$enumDecodeNullable(_$EncryptionModeEnumMap, json['encryptionMode']),
-    encryptionKey: json['encryptionKey'] as String?,
-    encryptionKdfSalt: (json['encryptionKdfSalt'] as List<dynamic>?)
-        ?.map((e) => e as int)
-        .toList(),
-  );
-}
+EncryptionConfig _$EncryptionConfigFromJson(Map<String, dynamic> json) =>
+    EncryptionConfig(
+      encryptionMode:
+          $enumDecodeNullable(_$EncryptionModeEnumMap, json['encryptionMode']),
+      encryptionKey: json['encryptionKey'] as String?,
+      encryptionKdfSalt: (json['encryptionKdfSalt'] as List<dynamic>?)
+          ?.map((e) => e as int)
+          .toList(),
+    );
 
 Map<String, dynamic> _$EncryptionConfigToJson(EncryptionConfig instance) {
   final val = <String, dynamic>{};
@@ -598,33 +545,31 @@ const _$EncryptionModeEnumMap = {
   EncryptionMode.AES256GCM2: 8,
 };
 
-RtcStats _$RtcStatsFromJson(Map<String, dynamic> json) {
-  return RtcStats(
-    json['duration'] as int,
-    json['txBytes'] as int,
-    json['rxBytes'] as int,
-    json['txAudioBytes'] as int,
-    json['txVideoBytes'] as int,
-    json['rxAudioBytes'] as int,
-    json['rxVideoBytes'] as int,
-    json['txKBitRate'] as int,
-    json['rxKBitRate'] as int,
-    json['txAudioKBitRate'] as int,
-    json['rxAudioKBitRate'] as int,
-    json['txVideoKBitRate'] as int,
-    json['rxVideoKBitRate'] as int,
-    json['userCount'] as int,
-    json['lastmileDelay'] as int,
-    json['txPacketLossRate'] as int,
-    json['rxPacketLossRate'] as int,
-    (json['cpuTotalUsage'] as num).toDouble(),
-    (json['cpuAppUsage'] as num).toDouble(),
-    json['gatewayRtt'] as int,
-    (json['memoryAppUsageRatio'] as num).toDouble(),
-    (json['memoryTotalUsageRatio'] as num).toDouble(),
-    json['memoryAppUsageInKbytes'] as int,
-  );
-}
+RtcStats _$RtcStatsFromJson(Map<String, dynamic> json) => RtcStats(
+      json['duration'] as int,
+      json['txBytes'] as int,
+      json['rxBytes'] as int,
+      json['txAudioBytes'] as int,
+      json['txVideoBytes'] as int,
+      json['rxAudioBytes'] as int,
+      json['rxVideoBytes'] as int,
+      json['txKBitRate'] as int,
+      json['rxKBitRate'] as int,
+      json['txAudioKBitRate'] as int,
+      json['rxAudioKBitRate'] as int,
+      json['txVideoKBitRate'] as int,
+      json['rxVideoKBitRate'] as int,
+      json['userCount'] as int,
+      json['lastmileDelay'] as int,
+      json['txPacketLossRate'] as int,
+      json['rxPacketLossRate'] as int,
+      (json['cpuTotalUsage'] as num).toDouble(),
+      (json['cpuAppUsage'] as num).toDouble(),
+      json['gatewayRtt'] as int,
+      (json['memoryAppUsageRatio'] as num).toDouble(),
+      (json['memoryTotalUsageRatio'] as num).toDouble(),
+      json['memoryAppUsageInKbytes'] as int,
+    );
 
 Map<String, dynamic> _$RtcStatsToJson(RtcStats instance) => <String, dynamic>{
       'duration': instance.duration,
@@ -652,14 +597,13 @@ Map<String, dynamic> _$RtcStatsToJson(RtcStats instance) => <String, dynamic>{
       'memoryAppUsageInKbytes': instance.memoryAppUsageInKbytes,
     };
 
-AudioVolumeInfo _$AudioVolumeInfoFromJson(Map<String, dynamic> json) {
-  return AudioVolumeInfo(
-    json['uid'] as int,
-    json['volume'] as int,
-    json['vad'] as int,
-    json['channelId'] as String,
-  );
-}
+AudioVolumeInfo _$AudioVolumeInfoFromJson(Map<String, dynamic> json) =>
+    AudioVolumeInfo(
+      json['uid'] as int,
+      json['volume'] as int,
+      json['vad'] as int,
+      json['channelId'] as String,
+    );
 
 Map<String, dynamic> _$AudioVolumeInfoToJson(AudioVolumeInfo instance) =>
     <String, dynamic>{
@@ -669,14 +613,12 @@ Map<String, dynamic> _$AudioVolumeInfoToJson(AudioVolumeInfo instance) =>
       'channelId': instance.channelId,
     };
 
-Rect _$RectFromJson(Map<String, dynamic> json) {
-  return Rect(
-    left: json['left'] as int?,
-    top: json['top'] as int?,
-    right: json['right'] as int?,
-    bottom: json['bottom'] as int?,
-  );
-}
+Rect _$RectFromJson(Map<String, dynamic> json) => Rect(
+      left: json['left'] as int?,
+      top: json['top'] as int?,
+      right: json['right'] as int?,
+      bottom: json['bottom'] as int?,
+    );
 
 Map<String, dynamic> _$RectToJson(Rect instance) {
   final val = <String, dynamic>{};
@@ -695,13 +637,12 @@ Map<String, dynamic> _$RectToJson(Rect instance) {
 }
 
 LastmileProbeOneWayResult _$LastmileProbeOneWayResultFromJson(
-    Map<String, dynamic> json) {
-  return LastmileProbeOneWayResult(
-    json['packetLossRate'] as int,
-    json['jitter'] as int,
-    json['availableBandwidth'] as int,
-  );
-}
+        Map<String, dynamic> json) =>
+    LastmileProbeOneWayResult(
+      json['packetLossRate'] as int,
+      json['jitter'] as int,
+      json['availableBandwidth'] as int,
+    );
 
 Map<String, dynamic> _$LastmileProbeOneWayResultToJson(
         LastmileProbeOneWayResult instance) =>
@@ -711,16 +652,15 @@ Map<String, dynamic> _$LastmileProbeOneWayResultToJson(
       'availableBandwidth': instance.availableBandwidth,
     };
 
-LastmileProbeResult _$LastmileProbeResultFromJson(Map<String, dynamic> json) {
-  return LastmileProbeResult(
-    _$enumDecode(_$LastmileProbeResultStateEnumMap, json['state']),
-    json['rtt'] as int,
-    LastmileProbeOneWayResult.fromJson(
-        json['uplinkReport'] as Map<String, dynamic>),
-    LastmileProbeOneWayResult.fromJson(
-        json['downlinkReport'] as Map<String, dynamic>),
-  );
-}
+LastmileProbeResult _$LastmileProbeResultFromJson(Map<String, dynamic> json) =>
+    LastmileProbeResult(
+      $enumDecode(_$LastmileProbeResultStateEnumMap, json['state']),
+      json['rtt'] as int,
+      LastmileProbeOneWayResult.fromJson(
+          json['uplinkReport'] as Map<String, dynamic>),
+      LastmileProbeOneWayResult.fromJson(
+          json['downlinkReport'] as Map<String, dynamic>),
+    );
 
 Map<String, dynamic> _$LastmileProbeResultToJson(
         LastmileProbeResult instance) =>
@@ -737,14 +677,13 @@ const _$LastmileProbeResultStateEnumMap = {
   LastmileProbeResultState.Unavailable: 3,
 };
 
-LocalAudioStats _$LocalAudioStatsFromJson(Map<String, dynamic> json) {
-  return LocalAudioStats(
-    json['numChannels'] as int,
-    json['sentSampleRate'] as int,
-    json['sentBitrate'] as int,
-    json['txPacketLossRate'] as int,
-  );
-}
+LocalAudioStats _$LocalAudioStatsFromJson(Map<String, dynamic> json) =>
+    LocalAudioStats(
+      json['numChannels'] as int,
+      json['sentSampleRate'] as int,
+      json['sentBitrate'] as int,
+      json['txPacketLossRate'] as int,
+    );
 
 Map<String, dynamic> _$LocalAudioStatsToJson(LocalAudioStats instance) =>
     <String, dynamic>{
@@ -754,27 +693,26 @@ Map<String, dynamic> _$LocalAudioStatsToJson(LocalAudioStats instance) =>
       'txPacketLossRate': instance.txPacketLossRate,
     };
 
-LocalVideoStats _$LocalVideoStatsFromJson(Map<String, dynamic> json) {
-  return LocalVideoStats(
-    json['sentBitrate'] as int,
-    json['sentFrameRate'] as int,
-    json['encoderOutputFrameRate'] as int,
-    json['rendererOutputFrameRate'] as int,
-    json['targetBitrate'] as int,
-    json['targetFrameRate'] as int,
-    _$enumDecode(
-        _$VideoQualityAdaptIndicationEnumMap, json['qualityAdaptIndication']),
-    json['encodedBitrate'] as int,
-    json['encodedFrameWidth'] as int,
-    json['encodedFrameHeight'] as int,
-    json['encodedFrameCount'] as int,
-    _$enumDecode(_$VideoCodecTypeEnumMap, json['codecType']),
-    json['txPacketLossRate'] as int,
-    json['captureFrameRate'] as int,
-    _$enumDecode(
-        _$CaptureBrightnessLevelTypeEnumMap, json['captureBrightnessLevel']),
-  );
-}
+LocalVideoStats _$LocalVideoStatsFromJson(Map<String, dynamic> json) =>
+    LocalVideoStats(
+      json['sentBitrate'] as int,
+      json['sentFrameRate'] as int,
+      json['encoderOutputFrameRate'] as int,
+      json['rendererOutputFrameRate'] as int,
+      json['targetBitrate'] as int,
+      json['targetFrameRate'] as int,
+      $enumDecode(
+          _$VideoQualityAdaptIndicationEnumMap, json['qualityAdaptIndication']),
+      json['encodedBitrate'] as int,
+      json['encodedFrameWidth'] as int,
+      json['encodedFrameHeight'] as int,
+      json['encodedFrameCount'] as int,
+      $enumDecode(_$VideoCodecTypeEnumMap, json['codecType']),
+      json['txPacketLossRate'] as int,
+      json['captureFrameRate'] as int,
+      $enumDecode(
+          _$CaptureBrightnessLevelTypeEnumMap, json['captureBrightnessLevel']),
+    );
 
 Map<String, dynamic> _$LocalVideoStatsToJson(LocalVideoStats instance) =>
     <String, dynamic>{
@@ -817,25 +755,24 @@ const _$CaptureBrightnessLevelTypeEnumMap = {
   CaptureBrightnessLevelType.Dark: 2,
 };
 
-RemoteAudioStats _$RemoteAudioStatsFromJson(Map<String, dynamic> json) {
-  return RemoteAudioStats(
-    json['uid'] as int,
-    _$enumDecode(_$NetworkQualityEnumMap, json['quality']),
-    json['networkTransportDelay'] as int,
-    json['jitterBufferDelay'] as int,
-    json['audioLossRate'] as int,
-    json['numChannels'] as int,
-    json['receivedSampleRate'] as int,
-    json['receivedBitrate'] as int,
-    json['totalFrozenTime'] as int,
-    json['frozenRate'] as int,
-    json['totalActiveTime'] as int,
-    json['publishDuration'] as int,
-    _$enumDecode(_$ExperienceQualityTypeEnumMap, json['qoeQuality']),
-    _$enumDecode(_$ExperiencePoorReasonEnumMap, json['qualityChangedReason']),
-    json['mosValue'] as int,
-  );
-}
+RemoteAudioStats _$RemoteAudioStatsFromJson(Map<String, dynamic> json) =>
+    RemoteAudioStats(
+      json['uid'] as int,
+      $enumDecode(_$NetworkQualityEnumMap, json['quality']),
+      json['networkTransportDelay'] as int,
+      json['jitterBufferDelay'] as int,
+      json['audioLossRate'] as int,
+      json['numChannels'] as int,
+      json['receivedSampleRate'] as int,
+      json['receivedBitrate'] as int,
+      json['totalFrozenTime'] as int,
+      json['frozenRate'] as int,
+      json['totalActiveTime'] as int,
+      json['publishDuration'] as int,
+      $enumDecode(_$ExperienceQualityTypeEnumMap, json['qoeQuality']),
+      $enumDecode(_$ExperiencePoorReasonEnumMap, json['qualityChangedReason']),
+      json['mosValue'] as int,
+    );
 
 Map<String, dynamic> _$RemoteAudioStatsToJson(RemoteAudioStats instance) =>
     <String, dynamic>{
@@ -882,23 +819,22 @@ const _$ExperiencePoorReasonEnumMap = {
   ExperiencePoorReason.WifiBluetoothCoexist: 8,
 };
 
-RemoteVideoStats _$RemoteVideoStatsFromJson(Map<String, dynamic> json) {
-  return RemoteVideoStats(
-    json['uid'] as int,
-    json['delay'] as int,
-    json['width'] as int,
-    json['height'] as int,
-    json['receivedBitrate'] as int,
-    json['decoderOutputFrameRate'] as int,
-    json['rendererOutputFrameRate'] as int,
-    json['packetLossRate'] as int,
-    _$enumDecode(_$VideoStreamTypeEnumMap, json['rxStreamType']),
-    json['totalFrozenTime'] as int,
-    json['frozenRate'] as int,
-    json['totalActiveTime'] as int,
-    json['publishDuration'] as int,
-  );
-}
+RemoteVideoStats _$RemoteVideoStatsFromJson(Map<String, dynamic> json) =>
+    RemoteVideoStats(
+      json['uid'] as int,
+      json['delay'] as int,
+      json['width'] as int,
+      json['height'] as int,
+      json['receivedBitrate'] as int,
+      json['decoderOutputFrameRate'] as int,
+      json['rendererOutputFrameRate'] as int,
+      json['packetLossRate'] as int,
+      $enumDecode(_$VideoStreamTypeEnumMap, json['rxStreamType']),
+      json['totalFrozenTime'] as int,
+      json['frozenRate'] as int,
+      json['totalActiveTime'] as int,
+      json['publishDuration'] as int,
+    );
 
 Map<String, dynamic> _$RemoteVideoStatsToJson(RemoteVideoStats instance) =>
     <String, dynamic>{
@@ -922,15 +858,14 @@ const _$VideoStreamTypeEnumMap = {
   VideoStreamType.Low: 1,
 };
 
-FacePositionInfo _$FacePositionInfoFromJson(Map<String, dynamic> json) {
-  return FacePositionInfo(
-    json['x'] as int,
-    json['y'] as int,
-    json['width'] as int,
-    json['height'] as int,
-    json['distance'] as int,
-  );
-}
+FacePositionInfo _$FacePositionInfoFromJson(Map<String, dynamic> json) =>
+    FacePositionInfo(
+      json['x'] as int,
+      json['y'] as int,
+      json['width'] as int,
+      json['height'] as int,
+      json['distance'] as int,
+    );
 
 Map<String, dynamic> _$FacePositionInfoToJson(FacePositionInfo instance) =>
     <String, dynamic>{
@@ -941,12 +876,11 @@ Map<String, dynamic> _$FacePositionInfoToJson(FacePositionInfo instance) =>
       'distance': instance.distance,
     };
 
-ClientRoleOptions _$ClientRoleOptionsFromJson(Map<String, dynamic> json) {
-  return ClientRoleOptions(
-    audienceLatencyLevel: _$enumDecodeNullable(
-        _$AudienceLatencyLevelTypeEnumMap, json['audienceLatencyLevel']),
-  );
-}
+ClientRoleOptions _$ClientRoleOptionsFromJson(Map<String, dynamic> json) =>
+    ClientRoleOptions(
+      audienceLatencyLevel: $enumDecodeNullable(
+          _$AudienceLatencyLevelTypeEnumMap, json['audienceLatencyLevel']),
+    );
 
 Map<String, dynamic> _$ClientRoleOptionsToJson(ClientRoleOptions instance) {
   final val = <String, dynamic>{};
@@ -967,13 +901,11 @@ const _$AudienceLatencyLevelTypeEnumMap = {
   AudienceLatencyLevelType.UltraLowLatency: 2,
 };
 
-LogConfig _$LogConfigFromJson(Map<String, dynamic> json) {
-  return LogConfig(
-    filePath: json['filePath'] as String?,
-    fileSize: json['fileSize'] as int?,
-    level: _$enumDecodeNullable(_$LogLevelEnumMap, json['level']),
-  );
-}
+LogConfig _$LogConfigFromJson(Map<String, dynamic> json) => LogConfig(
+      filePath: json['filePath'] as String?,
+      fileSize: json['fileSize'] as int?,
+      level: $enumDecodeNullable(_$LogLevelEnumMap, json['level']),
+    );
 
 Map<String, dynamic> _$LogConfigToJson(LogConfig instance) {
   final val = <String, dynamic>{};
@@ -998,12 +930,11 @@ const _$LogLevelEnumMap = {
   LogLevel.Fatal: 8,
 };
 
-DataStreamConfig _$DataStreamConfigFromJson(Map<String, dynamic> json) {
-  return DataStreamConfig(
-    json['syncWithAudio'] as bool,
-    json['ordered'] as bool,
-  );
-}
+DataStreamConfig _$DataStreamConfigFromJson(Map<String, dynamic> json) =>
+    DataStreamConfig(
+      json['syncWithAudio'] as bool,
+      json['ordered'] as bool,
+    );
 
 Map<String, dynamic> _$DataStreamConfigToJson(DataStreamConfig instance) =>
     <String, dynamic>{
@@ -1011,17 +942,16 @@ Map<String, dynamic> _$DataStreamConfigToJson(DataStreamConfig instance) =>
       'ordered': instance.ordered,
     };
 
-RtcEngineConfig _$RtcEngineConfigFromJson(Map<String, dynamic> json) {
-  return RtcEngineConfig(
-    json['appId'] as String,
-    areaCode: (json['areaCode'] as List<dynamic>?)
-        ?.map((e) => _$enumDecode(_$AreaCodeEnumMap, e))
-        .toList(),
-    logConfig: json['logConfig'] == null
-        ? null
-        : LogConfig.fromJson(json['logConfig'] as Map<String, dynamic>),
-  );
-}
+RtcEngineConfig _$RtcEngineConfigFromJson(Map<String, dynamic> json) =>
+    RtcEngineConfig(
+      json['appId'] as String,
+      areaCode: (json['areaCode'] as List<dynamic>?)
+          ?.map((e) => $enumDecode(_$AreaCodeEnumMap, e))
+          .toList(),
+      logConfig: json['logConfig'] == null
+          ? null
+          : LogConfig.fromJson(json['logConfig'] as Map<String, dynamic>),
+    );
 
 Map<String, dynamic> _$RtcEngineConfigToJson(RtcEngineConfig instance) {
   final val = <String, dynamic>{
@@ -1050,17 +980,16 @@ const _$AreaCodeEnumMap = {
   AreaCode.GLOB: -1,
 };
 
-RtcEngineContext _$RtcEngineContextFromJson(Map<String, dynamic> json) {
-  return RtcEngineContext(
-    json['appId'] as String,
-    areaCode: (json['areaCode'] as List<dynamic>?)
-        ?.map((e) => _$enumDecode(_$AreaCodeEnumMap, e))
-        .toList(),
-    logConfig: json['logConfig'] == null
-        ? null
-        : LogConfig.fromJson(json['logConfig'] as Map<String, dynamic>),
-  );
-}
+RtcEngineContext _$RtcEngineContextFromJson(Map<String, dynamic> json) =>
+    RtcEngineContext(
+      json['appId'] as String,
+      areaCode: (json['areaCode'] as List<dynamic>?)
+          ?.map((e) => $enumDecode(_$AreaCodeEnumMap, e))
+          .toList(),
+      logConfig: json['logConfig'] == null
+          ? null
+          : LogConfig.fromJson(json['logConfig'] as Map<String, dynamic>),
+    );
 
 Map<String, dynamic> _$RtcEngineContextToJson(RtcEngineContext instance) {
   final val = <String, dynamic>{
@@ -1079,13 +1008,12 @@ Map<String, dynamic> _$RtcEngineContextToJson(RtcEngineContext instance) {
   return val;
 }
 
-RhythmPlayerConfig _$RhythmPlayerConfigFromJson(Map<String, dynamic> json) {
-  return RhythmPlayerConfig(
-    beatsPerMeasure: json['beatsPerMeasure'] as int?,
-    beatsPerMinute: json['beatsPerMinute'] as int?,
-    publish: json['publish'] as bool?,
-  );
-}
+RhythmPlayerConfig _$RhythmPlayerConfigFromJson(Map<String, dynamic> json) =>
+    RhythmPlayerConfig(
+      beatsPerMeasure: json['beatsPerMeasure'] as int?,
+      beatsPerMinute: json['beatsPerMinute'] as int?,
+      publish: json['publish'] as bool?,
+    );
 
 Map<String, dynamic> _$RhythmPlayerConfigToJson(RhythmPlayerConfig instance) {
   final val = <String, dynamic>{};
@@ -1103,17 +1031,16 @@ Map<String, dynamic> _$RhythmPlayerConfigToJson(RhythmPlayerConfig instance) {
 }
 
 AudioRecordingConfiguration _$AudioRecordingConfigurationFromJson(
-    Map<String, dynamic> json) {
-  return AudioRecordingConfiguration(
-    json['filePath'] as String,
-    recordingQuality: _$enumDecodeNullable(
-        _$AudioRecordingQualityEnumMap, json['recordingQuality']),
-    recordingPosition: _$enumDecodeNullable(
-        _$AudioRecordingPositionEnumMap, json['recordingPosition']),
-    recordingSampleRate: _$enumDecodeNullable(
-        _$AudioSampleRateTypeEnumMap, json['recordingSampleRate']),
-  );
-}
+        Map<String, dynamic> json) =>
+    AudioRecordingConfiguration(
+      json['filePath'] as String,
+      recordingQuality: $enumDecodeNullable(
+          _$AudioRecordingQualityEnumMap, json['recordingQuality']),
+      recordingPosition: $enumDecodeNullable(
+          _$AudioRecordingPositionEnumMap, json['recordingPosition']),
+      recordingSampleRate: $enumDecodeNullable(
+          _$AudioSampleRateTypeEnumMap, json['recordingSampleRate']),
+    );
 
 Map<String, dynamic> _$AudioRecordingConfigurationToJson(
     AudioRecordingConfiguration instance) {
@@ -1149,16 +1076,16 @@ const _$AudioRecordingPositionEnumMap = {
 };
 
 VirtualBackgroundSource _$VirtualBackgroundSourceFromJson(
-    Map<String, dynamic> json) {
-  return VirtualBackgroundSource(
-    backgroundSourceType: _$enumDecodeNullable(
-        _$VirtualBackgroundSourceTypeEnumMap, json['backgroundSourceType']),
-    color: _$ColorFromJson(json['color'] as Map<String, dynamic>),
-    source: json['source'] as String?,
-    blurDegree:
-        _$enumDecode(_$VirtualBackgroundBlurDegreeEnumMap, json['blur_degree']),
-  );
-}
+        Map<String, dynamic> json) =>
+    VirtualBackgroundSource(
+      backgroundSourceType: $enumDecodeNullable(
+          _$VirtualBackgroundSourceTypeEnumMap, json['backgroundSourceType']),
+      color: _$ColorFromJson(json['color'] as Map<String, dynamic>),
+      source: json['source'] as String?,
+      blurDegree: $enumDecodeNullable(
+              _$VirtualBackgroundBlurDegreeEnumMap, json['blur_degree']) ??
+          VirtualBackgroundBlurDegree.High,
+    );
 
 Map<String, dynamic> _$VirtualBackgroundSourceToJson(
     VirtualBackgroundSource instance) {
@@ -1191,15 +1118,40 @@ const _$VirtualBackgroundBlurDegreeEnumMap = {
   VirtualBackgroundBlurDegree.High: 3,
 };
 
-AudioFileInfo _$AudioFileInfoFromJson(Map<String, dynamic> json) {
-  return AudioFileInfo(
-    filePath: json['filePath'] as String,
-    durationMs: json['durationMs'] as int,
-  );
-}
+AudioFileInfo _$AudioFileInfoFromJson(Map<String, dynamic> json) =>
+    AudioFileInfo(
+      filePath: json['filePath'] as String,
+      durationMs: json['durationMs'] as int,
+    );
 
 Map<String, dynamic> _$AudioFileInfoToJson(AudioFileInfo instance) =>
     <String, dynamic>{
       'filePath': instance.filePath,
       'durationMs': instance.durationMs,
     };
+
+EchoTestConfiguration _$EchoTestConfigurationFromJson(
+        Map<String, dynamic> json) =>
+    EchoTestConfiguration(
+      enableAudio: json['enableAudio'] as bool?,
+      enableVideo: json['enableVideo'] as bool?,
+      token: json['token'] as String?,
+      channelId: json['channelId'] as String?,
+    );
+
+Map<String, dynamic> _$EchoTestConfigurationToJson(
+    EchoTestConfiguration instance) {
+  final val = <String, dynamic>{};
+
+  void writeNotNull(String key, dynamic value) {
+    if (value != null) {
+      val[key] = value;
+    }
+  }
+
+  writeNotNull('enableAudio', instance.enableAudio);
+  writeNotNull('enableVideo', instance.enableVideo);
+  writeNotNull('token', instance.token);
+  writeNotNull('channelId', instance.channelId);
+  return val;
+}
diff --git a/lib/src/enum_converter.dart b/lib/src/enum_converter.dart
index 0aa047f27..3982dce3d 100644
--- a/lib/src/enum_converter.dart
+++ b/lib/src/enum_converter.dart
@@ -6,12 +6,12 @@ import 'enums.dart';
 
 part 'enum_converter.g.dart';
 
-abstract class EnumConverter<E, T> {
+abstract class EnumConverter<E extends Enum, T> {
   E e;
 
   EnumConverter(this.e);
 
-  EnumConverter.fromValue(Map<E, T> map, T t) : e = _$enumDecode(map, t);
+  EnumConverter.fromValue(Map<E, T> map, T t) : e = $enumDecode<E, T>(map, t);
 
   T toValue(Map<E, T> map) {
     return map[e] as T;
diff --git a/lib/src/enum_converter.g.dart b/lib/src/enum_converter.g.dart
index 09f93c929..224162196 100644
--- a/lib/src/enum_converter.g.dart
+++ b/lib/src/enum_converter.g.dart
@@ -6,43 +6,16 @@ part of 'enum_converter.dart';
 // JsonSerializableGenerator
 // **************************************************************************
 
-AreaCodeConverter _$AreaCodeConverterFromJson(Map<String, dynamic> json) {
-  return AreaCodeConverter(
-    _$enumDecode(_$AreaCodeEnumMap, json['e']),
-  );
-}
+AreaCodeConverter _$AreaCodeConverterFromJson(Map<String, dynamic> json) =>
+    AreaCodeConverter(
+      $enumDecode(_$AreaCodeEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$AreaCodeConverterToJson(AreaCodeConverter instance) =>
     <String, dynamic>{
       'e': _$AreaCodeEnumMap[instance.e],
     };
 
-K _$enumDecode<K, V>(
-  Map<K, V> enumValues,
-  Object? source, {
-  K? unknownValue,
-}) {
-  if (source == null) {
-    throw ArgumentError(
-      'A value must be provided. Supported values: '
-      '${enumValues.values.join(', ')}',
-    );
-  }
-
-  return enumValues.entries.singleWhere(
-    (e) => e.value == source,
-    orElse: () {
-      if (unknownValue == null) {
-        throw ArgumentError(
-          '`$source` is not one of the supported values: '
-          '${enumValues.values.join(', ')}',
-        );
-      }
-      return MapEntry(unknownValue, enumValues.values.first);
-    },
-  ).key;
-}
-
 const _$AreaCodeEnumMap = {
   AreaCode.CN: 1,
   AreaCode.NA: 2,
@@ -54,11 +27,10 @@ const _$AreaCodeEnumMap = {
 };
 
 AudioCodecProfileTypeConverter _$AudioCodecProfileTypeConverterFromJson(
-    Map<String, dynamic> json) {
-  return AudioCodecProfileTypeConverter(
-    _$enumDecode(_$AudioCodecProfileTypeEnumMap, json['e']),
-  );
-}
+        Map<String, dynamic> json) =>
+    AudioCodecProfileTypeConverter(
+      $enumDecode(_$AudioCodecProfileTypeEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$AudioCodecProfileTypeConverterToJson(
         AudioCodecProfileTypeConverter instance) =>
@@ -73,11 +45,10 @@ const _$AudioCodecProfileTypeEnumMap = {
 
 AudioEqualizationBandFrequencyConverter
     _$AudioEqualizationBandFrequencyConverterFromJson(
-        Map<String, dynamic> json) {
-  return AudioEqualizationBandFrequencyConverter(
-    _$enumDecode(_$AudioEqualizationBandFrequencyEnumMap, json['e']),
-  );
-}
+            Map<String, dynamic> json) =>
+        AudioEqualizationBandFrequencyConverter(
+          $enumDecode(_$AudioEqualizationBandFrequencyEnumMap, json['e']),
+        );
 
 Map<String, dynamic> _$AudioEqualizationBandFrequencyConverterToJson(
         AudioEqualizationBandFrequencyConverter instance) =>
@@ -99,11 +70,10 @@ const _$AudioEqualizationBandFrequencyEnumMap = {
 };
 
 AudioLocalErrorConverter _$AudioLocalErrorConverterFromJson(
-    Map<String, dynamic> json) {
-  return AudioLocalErrorConverter(
-    _$enumDecode(_$AudioLocalErrorEnumMap, json['e']),
-  );
-}
+        Map<String, dynamic> json) =>
+    AudioLocalErrorConverter(
+      $enumDecode(_$AudioLocalErrorEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$AudioLocalErrorConverterToJson(
         AudioLocalErrorConverter instance) =>
@@ -122,11 +92,10 @@ const _$AudioLocalErrorEnumMap = {
 };
 
 AudioLocalStateConverter _$AudioLocalStateConverterFromJson(
-    Map<String, dynamic> json) {
-  return AudioLocalStateConverter(
-    _$enumDecode(_$AudioLocalStateEnumMap, json['e']),
-  );
-}
+        Map<String, dynamic> json) =>
+    AudioLocalStateConverter(
+      $enumDecode(_$AudioLocalStateEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$AudioLocalStateConverterToJson(
         AudioLocalStateConverter instance) =>
@@ -142,11 +111,10 @@ const _$AudioLocalStateEnumMap = {
 };
 
 AudioFileInfoErrorConverter _$AudioFileInfoErrorConverterFromJson(
-    Map<String, dynamic> json) {
-  return AudioFileInfoErrorConverter(
-    _$enumDecode(_$AudioFileInfoErrorEnumMap, json['e']),
-  );
-}
+        Map<String, dynamic> json) =>
+    AudioFileInfoErrorConverter(
+      $enumDecode(_$AudioFileInfoErrorEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$AudioFileInfoErrorConverterToJson(
         AudioFileInfoErrorConverter instance) =>
@@ -160,11 +128,10 @@ const _$AudioFileInfoErrorEnumMap = {
 };
 
 AudioMixingReasonConverter _$AudioMixingReasonConverterFromJson(
-    Map<String, dynamic> json) {
-  return AudioMixingReasonConverter(
-    _$enumDecode(_$AudioMixingReasonEnumMap, json['e']),
-  );
-}
+        Map<String, dynamic> json) =>
+    AudioMixingReasonConverter(
+      $enumDecode(_$AudioMixingReasonEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$AudioMixingReasonConverterToJson(
         AudioMixingReasonConverter instance) =>
@@ -187,11 +154,10 @@ const _$AudioMixingReasonEnumMap = {
 };
 
 AudioMixingStateCodeConverter _$AudioMixingStateCodeConverterFromJson(
-    Map<String, dynamic> json) {
-  return AudioMixingStateCodeConverter(
-    _$enumDecode(_$AudioMixingStateCodeEnumMap, json['e']),
-  );
-}
+        Map<String, dynamic> json) =>
+    AudioMixingStateCodeConverter(
+      $enumDecode(_$AudioMixingStateCodeEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$AudioMixingStateCodeConverterToJson(
         AudioMixingStateCodeConverter instance) =>
@@ -208,11 +174,10 @@ const _$AudioMixingStateCodeEnumMap = {
 };
 
 AudioMixingDualMonoModeConverter _$AudioMixingDualMonoModeConverterFromJson(
-    Map<String, dynamic> json) {
-  return AudioMixingDualMonoModeConverter(
-    _$enumDecode(_$AudioMixingDualMonoModeEnumMap, json['e']),
-  );
-}
+        Map<String, dynamic> json) =>
+    AudioMixingDualMonoModeConverter(
+      $enumDecode(_$AudioMixingDualMonoModeEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$AudioMixingDualMonoModeConverterToJson(
         AudioMixingDualMonoModeConverter instance) =>
@@ -228,11 +193,10 @@ const _$AudioMixingDualMonoModeEnumMap = {
 };
 
 AudioOutputRoutingConverter _$AudioOutputRoutingConverterFromJson(
-    Map<String, dynamic> json) {
-  return AudioOutputRoutingConverter(
-    _$enumDecode(_$AudioOutputRoutingEnumMap, json['e']),
-  );
-}
+        Map<String, dynamic> json) =>
+    AudioOutputRoutingConverter(
+      $enumDecode(_$AudioOutputRoutingEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$AudioOutputRoutingConverterToJson(
         AudioOutputRoutingConverter instance) =>
@@ -251,11 +215,10 @@ const _$AudioOutputRoutingEnumMap = {
 };
 
 AudioProfileConverter _$AudioProfileConverterFromJson(
-    Map<String, dynamic> json) {
-  return AudioProfileConverter(
-    _$enumDecode(_$AudioProfileEnumMap, json['e']),
-  );
-}
+        Map<String, dynamic> json) =>
+    AudioProfileConverter(
+      $enumDecode(_$AudioProfileEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$AudioProfileConverterToJson(
         AudioProfileConverter instance) =>
@@ -273,11 +236,10 @@ const _$AudioProfileEnumMap = {
 };
 
 AudioRecordingQualityConverter _$AudioRecordingQualityConverterFromJson(
-    Map<String, dynamic> json) {
-  return AudioRecordingQualityConverter(
-    _$enumDecode(_$AudioRecordingQualityEnumMap, json['e']),
-  );
-}
+        Map<String, dynamic> json) =>
+    AudioRecordingQualityConverter(
+      $enumDecode(_$AudioRecordingQualityEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$AudioRecordingQualityConverterToJson(
         AudioRecordingQualityConverter instance) =>
@@ -292,11 +254,10 @@ const _$AudioRecordingQualityEnumMap = {
 };
 
 AudioRecordingPositionConverter _$AudioRecordingPositionConverterFromJson(
-    Map<String, dynamic> json) {
-  return AudioRecordingPositionConverter(
-    _$enumDecode(_$AudioRecordingPositionEnumMap, json['e']),
-  );
-}
+        Map<String, dynamic> json) =>
+    AudioRecordingPositionConverter(
+      $enumDecode(_$AudioRecordingPositionEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$AudioRecordingPositionConverterToJson(
         AudioRecordingPositionConverter instance) =>
@@ -311,11 +272,10 @@ const _$AudioRecordingPositionEnumMap = {
 };
 
 AudioRemoteStateConverter _$AudioRemoteStateConverterFromJson(
-    Map<String, dynamic> json) {
-  return AudioRemoteStateConverter(
-    _$enumDecode(_$AudioRemoteStateEnumMap, json['e']),
-  );
-}
+        Map<String, dynamic> json) =>
+    AudioRemoteStateConverter(
+      $enumDecode(_$AudioRemoteStateEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$AudioRemoteStateConverterToJson(
         AudioRemoteStateConverter instance) =>
@@ -332,11 +292,10 @@ const _$AudioRemoteStateEnumMap = {
 };
 
 AudioRemoteStateReasonConverter _$AudioRemoteStateReasonConverterFromJson(
-    Map<String, dynamic> json) {
-  return AudioRemoteStateReasonConverter(
-    _$enumDecode(_$AudioRemoteStateReasonEnumMap, json['e']),
-  );
-}
+        Map<String, dynamic> json) =>
+    AudioRemoteStateReasonConverter(
+      $enumDecode(_$AudioRemoteStateReasonEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$AudioRemoteStateReasonConverterToJson(
         AudioRemoteStateReasonConverter instance) =>
@@ -356,11 +315,10 @@ const _$AudioRemoteStateReasonEnumMap = {
 };
 
 AudioReverbPresetConverter _$AudioReverbPresetConverterFromJson(
-    Map<String, dynamic> json) {
-  return AudioReverbPresetConverter(
-    _$enumDecode(_$AudioReverbPresetEnumMap, json['e']),
-  );
-}
+        Map<String, dynamic> json) =>
+    AudioReverbPresetConverter(
+      $enumDecode(_$AudioReverbPresetEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$AudioReverbPresetConverterToJson(
         AudioReverbPresetConverter instance) =>
@@ -389,11 +347,10 @@ const _$AudioReverbPresetEnumMap = {
 };
 
 AudioReverbTypeConverter _$AudioReverbTypeConverterFromJson(
-    Map<String, dynamic> json) {
-  return AudioReverbTypeConverter(
-    _$enumDecode(_$AudioReverbTypeEnumMap, json['e']),
-  );
-}
+        Map<String, dynamic> json) =>
+    AudioReverbTypeConverter(
+      $enumDecode(_$AudioReverbTypeEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$AudioReverbTypeConverterToJson(
         AudioReverbTypeConverter instance) =>
@@ -410,11 +367,10 @@ const _$AudioReverbTypeEnumMap = {
 };
 
 AudioSampleRateTypeConverter _$AudioSampleRateTypeConverterFromJson(
-    Map<String, dynamic> json) {
-  return AudioSampleRateTypeConverter(
-    _$enumDecode(_$AudioSampleRateTypeEnumMap, json['e']),
-  );
-}
+        Map<String, dynamic> json) =>
+    AudioSampleRateTypeConverter(
+      $enumDecode(_$AudioSampleRateTypeEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$AudioSampleRateTypeConverterToJson(
         AudioSampleRateTypeConverter instance) =>
@@ -429,11 +385,10 @@ const _$AudioSampleRateTypeEnumMap = {
 };
 
 AudioScenarioConverter _$AudioScenarioConverterFromJson(
-    Map<String, dynamic> json) {
-  return AudioScenarioConverter(
-    _$enumDecode(_$AudioScenarioEnumMap, json['e']),
-  );
-}
+        Map<String, dynamic> json) =>
+    AudioScenarioConverter(
+      $enumDecode(_$AudioScenarioEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$AudioScenarioConverterToJson(
         AudioScenarioConverter instance) =>
@@ -453,11 +408,10 @@ const _$AudioScenarioEnumMap = {
 };
 
 AudioVoiceChangerConverter _$AudioVoiceChangerConverterFromJson(
-    Map<String, dynamic> json) {
-  return AudioVoiceChangerConverter(
-    _$enumDecode(_$AudioVoiceChangerEnumMap, json['e']),
-  );
-}
+        Map<String, dynamic> json) =>
+    AudioVoiceChangerConverter(
+      $enumDecode(_$AudioVoiceChangerEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$AudioVoiceChangerConverterToJson(
         AudioVoiceChangerConverter instance) =>
@@ -489,11 +443,10 @@ const _$AudioVoiceChangerEnumMap = {
 
 CameraCaptureOutputPreferenceConverter
     _$CameraCaptureOutputPreferenceConverterFromJson(
-        Map<String, dynamic> json) {
-  return CameraCaptureOutputPreferenceConverter(
-    _$enumDecode(_$CameraCaptureOutputPreferenceEnumMap, json['e']),
-  );
-}
+            Map<String, dynamic> json) =>
+        CameraCaptureOutputPreferenceConverter(
+          $enumDecode(_$CameraCaptureOutputPreferenceEnumMap, json['e']),
+        );
 
 Map<String, dynamic> _$CameraCaptureOutputPreferenceConverterToJson(
         CameraCaptureOutputPreferenceConverter instance) =>
@@ -509,11 +462,10 @@ const _$CameraCaptureOutputPreferenceEnumMap = {
 };
 
 CameraDirectionConverter _$CameraDirectionConverterFromJson(
-    Map<String, dynamic> json) {
-  return CameraDirectionConverter(
-    _$enumDecode(_$CameraDirectionEnumMap, json['e']),
-  );
-}
+        Map<String, dynamic> json) =>
+    CameraDirectionConverter(
+      $enumDecode(_$CameraDirectionEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$CameraDirectionConverterToJson(
         CameraDirectionConverter instance) =>
@@ -527,11 +479,10 @@ const _$CameraDirectionEnumMap = {
 };
 
 ChannelMediaRelayErrorConverter _$ChannelMediaRelayErrorConverterFromJson(
-    Map<String, dynamic> json) {
-  return ChannelMediaRelayErrorConverter(
-    _$enumDecode(_$ChannelMediaRelayErrorEnumMap, json['e']),
-  );
-}
+        Map<String, dynamic> json) =>
+    ChannelMediaRelayErrorConverter(
+      $enumDecode(_$ChannelMediaRelayErrorEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$ChannelMediaRelayErrorConverterToJson(
         ChannelMediaRelayErrorConverter instance) =>
@@ -555,11 +506,10 @@ const _$ChannelMediaRelayErrorEnumMap = {
 };
 
 ChannelMediaRelayEventConverter _$ChannelMediaRelayEventConverterFromJson(
-    Map<String, dynamic> json) {
-  return ChannelMediaRelayEventConverter(
-    _$enumDecode(_$ChannelMediaRelayEventEnumMap, json['e']),
-  );
-}
+        Map<String, dynamic> json) =>
+    ChannelMediaRelayEventConverter(
+      $enumDecode(_$ChannelMediaRelayEventEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$ChannelMediaRelayEventConverterToJson(
         ChannelMediaRelayEventConverter instance) =>
@@ -587,11 +537,10 @@ const _$ChannelMediaRelayEventEnumMap = {
 };
 
 ChannelMediaRelayStateConverter _$ChannelMediaRelayStateConverterFromJson(
-    Map<String, dynamic> json) {
-  return ChannelMediaRelayStateConverter(
-    _$enumDecode(_$ChannelMediaRelayStateEnumMap, json['e']),
-  );
-}
+        Map<String, dynamic> json) =>
+    ChannelMediaRelayStateConverter(
+      $enumDecode(_$ChannelMediaRelayStateEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$ChannelMediaRelayStateConverterToJson(
         ChannelMediaRelayStateConverter instance) =>
@@ -607,11 +556,10 @@ const _$ChannelMediaRelayStateEnumMap = {
 };
 
 ChannelProfileConverter _$ChannelProfileConverterFromJson(
-    Map<String, dynamic> json) {
-  return ChannelProfileConverter(
-    _$enumDecode(_$ChannelProfileEnumMap, json['e']),
-  );
-}
+        Map<String, dynamic> json) =>
+    ChannelProfileConverter(
+      $enumDecode(_$ChannelProfileEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$ChannelProfileConverterToJson(
         ChannelProfileConverter instance) =>
@@ -625,11 +573,10 @@ const _$ChannelProfileEnumMap = {
   ChannelProfile.Game: 2,
 };
 
-ClientRoleConverter _$ClientRoleConverterFromJson(Map<String, dynamic> json) {
-  return ClientRoleConverter(
-    _$enumDecode(_$ClientRoleEnumMap, json['e']),
-  );
-}
+ClientRoleConverter _$ClientRoleConverterFromJson(Map<String, dynamic> json) =>
+    ClientRoleConverter(
+      $enumDecode(_$ClientRoleEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$ClientRoleConverterToJson(
         ClientRoleConverter instance) =>
@@ -643,11 +590,10 @@ const _$ClientRoleEnumMap = {
 };
 
 ConnectionChangedReasonConverter _$ConnectionChangedReasonConverterFromJson(
-    Map<String, dynamic> json) {
-  return ConnectionChangedReasonConverter(
-    _$enumDecode(_$ConnectionChangedReasonEnumMap, json['e']),
-  );
-}
+        Map<String, dynamic> json) =>
+    ConnectionChangedReasonConverter(
+      $enumDecode(_$ConnectionChangedReasonEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$ConnectionChangedReasonConverterToJson(
         ConnectionChangedReasonConverter instance) =>
@@ -675,11 +621,10 @@ const _$ConnectionChangedReasonEnumMap = {
 };
 
 ConnectionStateTypeConverter _$ConnectionStateTypeConverterFromJson(
-    Map<String, dynamic> json) {
-  return ConnectionStateTypeConverter(
-    _$enumDecode(_$ConnectionStateTypeEnumMap, json['e']),
-  );
-}
+        Map<String, dynamic> json) =>
+    ConnectionStateTypeConverter(
+      $enumDecode(_$ConnectionStateTypeEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$ConnectionStateTypeConverterToJson(
         ConnectionStateTypeConverter instance) =>
@@ -696,11 +641,10 @@ const _$ConnectionStateTypeEnumMap = {
 };
 
 DegradationPreferenceConverter _$DegradationPreferenceConverterFromJson(
-    Map<String, dynamic> json) {
-  return DegradationPreferenceConverter(
-    _$enumDecode(_$DegradationPreferenceEnumMap, json['e']),
-  );
-}
+        Map<String, dynamic> json) =>
+    DegradationPreferenceConverter(
+      $enumDecode(_$DegradationPreferenceEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$DegradationPreferenceConverterToJson(
         DegradationPreferenceConverter instance) =>
@@ -715,11 +659,10 @@ const _$DegradationPreferenceEnumMap = {
 };
 
 EncryptionModeConverter _$EncryptionModeConverterFromJson(
-    Map<String, dynamic> json) {
-  return EncryptionModeConverter(
-    _$enumDecode(_$EncryptionModeEnumMap, json['e']),
-  );
-}
+        Map<String, dynamic> json) =>
+    EncryptionModeConverter(
+      $enumDecode(_$EncryptionModeEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$EncryptionModeConverterToJson(
         EncryptionModeConverter instance) =>
@@ -739,11 +682,10 @@ const _$EncryptionModeEnumMap = {
   EncryptionMode.AES256GCM2: 8,
 };
 
-ErrorCodeConverter _$ErrorCodeConverterFromJson(Map<String, dynamic> json) {
-  return ErrorCodeConverter(
-    _$enumDecode(_$ErrorCodeEnumMap, json['e']),
-  );
-}
+ErrorCodeConverter _$ErrorCodeConverterFromJson(Map<String, dynamic> json) =>
+    ErrorCodeConverter(
+      $enumDecode(_$ErrorCodeEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$ErrorCodeConverterToJson(ErrorCodeConverter instance) =>
     <String, dynamic>{
@@ -833,11 +775,10 @@ const _$ErrorCodeEnumMap = {
 };
 
 InjectStreamStatusConverter _$InjectStreamStatusConverterFromJson(
-    Map<String, dynamic> json) {
-  return InjectStreamStatusConverter(
-    _$enumDecode(_$InjectStreamStatusEnumMap, json['e']),
-  );
-}
+        Map<String, dynamic> json) =>
+    InjectStreamStatusConverter(
+      $enumDecode(_$InjectStreamStatusEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$InjectStreamStatusConverterToJson(
         InjectStreamStatusConverter instance) =>
@@ -860,11 +801,10 @@ const _$InjectStreamStatusEnumMap = {
 };
 
 LastmileProbeResultStateConverter _$LastmileProbeResultStateConverterFromJson(
-    Map<String, dynamic> json) {
-  return LastmileProbeResultStateConverter(
-    _$enumDecode(_$LastmileProbeResultStateEnumMap, json['e']),
-  );
-}
+        Map<String, dynamic> json) =>
+    LastmileProbeResultStateConverter(
+      $enumDecode(_$LastmileProbeResultStateEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$LastmileProbeResultStateConverterToJson(
         LastmileProbeResultStateConverter instance) =>
@@ -879,11 +819,10 @@ const _$LastmileProbeResultStateEnumMap = {
 };
 
 LighteningContrastLevelConverter _$LighteningContrastLevelConverterFromJson(
-    Map<String, dynamic> json) {
-  return LighteningContrastLevelConverter(
-    _$enumDecode(_$LighteningContrastLevelEnumMap, json['e']),
-  );
-}
+        Map<String, dynamic> json) =>
+    LighteningContrastLevelConverter(
+      $enumDecode(_$LighteningContrastLevelEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$LighteningContrastLevelConverterToJson(
         LighteningContrastLevelConverter instance) =>
@@ -898,11 +837,10 @@ const _$LighteningContrastLevelEnumMap = {
 };
 
 LocalVideoStreamErrorConverter _$LocalVideoStreamErrorConverterFromJson(
-    Map<String, dynamic> json) {
-  return LocalVideoStreamErrorConverter(
-    _$enumDecode(_$LocalVideoStreamErrorEnumMap, json['e']),
-  );
-}
+        Map<String, dynamic> json) =>
+    LocalVideoStreamErrorConverter(
+      $enumDecode(_$LocalVideoStreamErrorEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$LocalVideoStreamErrorConverterToJson(
         LocalVideoStreamErrorConverter instance) =>
@@ -923,11 +861,10 @@ const _$LocalVideoStreamErrorEnumMap = {
 };
 
 LocalVideoStreamStateConverter _$LocalVideoStreamStateConverterFromJson(
-    Map<String, dynamic> json) {
-  return LocalVideoStreamStateConverter(
-    _$enumDecode(_$LocalVideoStreamStateEnumMap, json['e']),
-  );
-}
+        Map<String, dynamic> json) =>
+    LocalVideoStreamStateConverter(
+      $enumDecode(_$LocalVideoStreamStateEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$LocalVideoStreamStateConverterToJson(
         LocalVideoStreamStateConverter instance) =>
@@ -942,11 +879,10 @@ const _$LocalVideoStreamStateEnumMap = {
   LocalVideoStreamState.Failed: 3,
 };
 
-LogFilterConverter _$LogFilterConverterFromJson(Map<String, dynamic> json) {
-  return LogFilterConverter(
-    _$enumDecode(_$LogFilterEnumMap, json['e']),
-  );
-}
+LogFilterConverter _$LogFilterConverterFromJson(Map<String, dynamic> json) =>
+    LogFilterConverter(
+      $enumDecode(_$LogFilterEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$LogFilterConverterToJson(LogFilterConverter instance) =>
     <String, dynamic>{
@@ -963,11 +899,10 @@ const _$LogFilterEnumMap = {
 };
 
 NetworkQualityConverter _$NetworkQualityConverterFromJson(
-    Map<String, dynamic> json) {
-  return NetworkQualityConverter(
-    _$enumDecode(_$NetworkQualityEnumMap, json['e']),
-  );
-}
+        Map<String, dynamic> json) =>
+    NetworkQualityConverter(
+      $enumDecode(_$NetworkQualityEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$NetworkQualityConverterToJson(
         NetworkQualityConverter instance) =>
@@ -987,11 +922,11 @@ const _$NetworkQualityEnumMap = {
   NetworkQuality.Detecting: 8,
 };
 
-NetworkTypeConverter _$NetworkTypeConverterFromJson(Map<String, dynamic> json) {
-  return NetworkTypeConverter(
-    _$enumDecode(_$NetworkTypeEnumMap, json['e']),
-  );
-}
+NetworkTypeConverter _$NetworkTypeConverterFromJson(
+        Map<String, dynamic> json) =>
+    NetworkTypeConverter(
+      $enumDecode(_$NetworkTypeEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$NetworkTypeConverterToJson(
         NetworkTypeConverter instance) =>
@@ -1011,11 +946,10 @@ const _$NetworkTypeEnumMap = {
 };
 
 RtmpStreamingErrorCodeConverter _$RtmpStreamingErrorCodeConverterFromJson(
-    Map<String, dynamic> json) {
-  return RtmpStreamingErrorCodeConverter(
-    _$enumDecode(_$RtmpStreamingErrorCodeEnumMap, json['e']),
-  );
-}
+        Map<String, dynamic> json) =>
+    RtmpStreamingErrorCodeConverter(
+      $enumDecode(_$RtmpStreamingErrorCodeEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$RtmpStreamingErrorCodeConverterToJson(
         RtmpStreamingErrorCodeConverter instance) =>
@@ -1039,11 +973,10 @@ const _$RtmpStreamingErrorCodeEnumMap = {
 };
 
 RtmpStreamingStateConverter _$RtmpStreamingStateConverterFromJson(
-    Map<String, dynamic> json) {
-  return RtmpStreamingStateConverter(
-    _$enumDecode(_$RtmpStreamingStateEnumMap, json['e']),
-  );
-}
+        Map<String, dynamic> json) =>
+    RtmpStreamingStateConverter(
+      $enumDecode(_$RtmpStreamingStateEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$RtmpStreamingStateConverterToJson(
         RtmpStreamingStateConverter instance) =>
@@ -1060,11 +993,10 @@ const _$RtmpStreamingStateEnumMap = {
 };
 
 StreamFallbackOptionsConverter _$StreamFallbackOptionsConverterFromJson(
-    Map<String, dynamic> json) {
-  return StreamFallbackOptionsConverter(
-    _$enumDecode(_$StreamFallbackOptionsEnumMap, json['e']),
-  );
-}
+        Map<String, dynamic> json) =>
+    StreamFallbackOptionsConverter(
+      $enumDecode(_$StreamFallbackOptionsEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$StreamFallbackOptionsConverterToJson(
         StreamFallbackOptionsConverter instance) =>
@@ -1079,11 +1011,10 @@ const _$StreamFallbackOptionsEnumMap = {
 };
 
 UserOfflineReasonConverter _$UserOfflineReasonConverterFromJson(
-    Map<String, dynamic> json) {
-  return UserOfflineReasonConverter(
-    _$enumDecode(_$UserOfflineReasonEnumMap, json['e']),
-  );
-}
+        Map<String, dynamic> json) =>
+    UserOfflineReasonConverter(
+      $enumDecode(_$UserOfflineReasonEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$UserOfflineReasonConverterToJson(
         UserOfflineReasonConverter instance) =>
@@ -1098,11 +1029,10 @@ const _$UserOfflineReasonEnumMap = {
 };
 
 UserPriorityConverter _$UserPriorityConverterFromJson(
-    Map<String, dynamic> json) {
-  return UserPriorityConverter(
-    _$enumDecode(_$UserPriorityEnumMap, json['e']),
-  );
-}
+        Map<String, dynamic> json) =>
+    UserPriorityConverter(
+      $enumDecode(_$UserPriorityEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$UserPriorityConverterToJson(
         UserPriorityConverter instance) =>
@@ -1116,11 +1046,10 @@ const _$UserPriorityEnumMap = {
 };
 
 VideoCodecProfileTypeConverter _$VideoCodecProfileTypeConverterFromJson(
-    Map<String, dynamic> json) {
-  return VideoCodecProfileTypeConverter(
-    _$enumDecode(_$VideoCodecProfileTypeEnumMap, json['e']),
-  );
-}
+        Map<String, dynamic> json) =>
+    VideoCodecProfileTypeConverter(
+      $enumDecode(_$VideoCodecProfileTypeEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$VideoCodecProfileTypeConverterToJson(
         VideoCodecProfileTypeConverter instance) =>
@@ -1135,11 +1064,10 @@ const _$VideoCodecProfileTypeEnumMap = {
 };
 
 VideoFrameRateConverter _$VideoFrameRateConverterFromJson(
-    Map<String, dynamic> json) {
-  return VideoFrameRateConverter(
-    _$enumDecode(_$VideoFrameRateEnumMap, json['e']),
-  );
-}
+        Map<String, dynamic> json) =>
+    VideoFrameRateConverter(
+      $enumDecode(_$VideoFrameRateEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$VideoFrameRateConverterToJson(
         VideoFrameRateConverter instance) =>
@@ -1158,11 +1086,10 @@ const _$VideoFrameRateEnumMap = {
   VideoFrameRate.Fps60: 60,
 };
 
-BitRateConverter _$BitRateConverterFromJson(Map<String, dynamic> json) {
-  return BitRateConverter(
-    _$enumDecode(_$BitRateEnumMap, json['e']),
-  );
-}
+BitRateConverter _$BitRateConverterFromJson(Map<String, dynamic> json) =>
+    BitRateConverter(
+      $enumDecode(_$BitRateEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$BitRateConverterToJson(BitRateConverter instance) =>
     <String, dynamic>{
@@ -1175,11 +1102,10 @@ const _$BitRateEnumMap = {
 };
 
 VideoMirrorModeConverter _$VideoMirrorModeConverterFromJson(
-    Map<String, dynamic> json) {
-  return VideoMirrorModeConverter(
-    _$enumDecode(_$VideoMirrorModeEnumMap, json['e']),
-  );
-}
+        Map<String, dynamic> json) =>
+    VideoMirrorModeConverter(
+      $enumDecode(_$VideoMirrorModeEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$VideoMirrorModeConverterToJson(
         VideoMirrorModeConverter instance) =>
@@ -1194,11 +1120,10 @@ const _$VideoMirrorModeEnumMap = {
 };
 
 VideoOutputOrientationModeConverter
-    _$VideoOutputOrientationModeConverterFromJson(Map<String, dynamic> json) {
-  return VideoOutputOrientationModeConverter(
-    _$enumDecode(_$VideoOutputOrientationModeEnumMap, json['e']),
-  );
-}
+    _$VideoOutputOrientationModeConverterFromJson(Map<String, dynamic> json) =>
+        VideoOutputOrientationModeConverter(
+          $enumDecode(_$VideoOutputOrientationModeEnumMap, json['e']),
+        );
 
 Map<String, dynamic> _$VideoOutputOrientationModeConverterToJson(
         VideoOutputOrientationModeConverter instance) =>
@@ -1213,11 +1138,10 @@ const _$VideoOutputOrientationModeEnumMap = {
 };
 
 VideoQualityAdaptIndicationConverter
-    _$VideoQualityAdaptIndicationConverterFromJson(Map<String, dynamic> json) {
-  return VideoQualityAdaptIndicationConverter(
-    _$enumDecode(_$VideoQualityAdaptIndicationEnumMap, json['e']),
-  );
-}
+    _$VideoQualityAdaptIndicationConverterFromJson(Map<String, dynamic> json) =>
+        VideoQualityAdaptIndicationConverter(
+          $enumDecode(_$VideoQualityAdaptIndicationEnumMap, json['e']),
+        );
 
 Map<String, dynamic> _$VideoQualityAdaptIndicationConverterToJson(
         VideoQualityAdaptIndicationConverter instance) =>
@@ -1232,11 +1156,10 @@ const _$VideoQualityAdaptIndicationEnumMap = {
 };
 
 VideoRemoteStateConverter _$VideoRemoteStateConverterFromJson(
-    Map<String, dynamic> json) {
-  return VideoRemoteStateConverter(
-    _$enumDecode(_$VideoRemoteStateEnumMap, json['e']),
-  );
-}
+        Map<String, dynamic> json) =>
+    VideoRemoteStateConverter(
+      $enumDecode(_$VideoRemoteStateEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$VideoRemoteStateConverterToJson(
         VideoRemoteStateConverter instance) =>
@@ -1253,11 +1176,10 @@ const _$VideoRemoteStateEnumMap = {
 };
 
 VideoRemoteStateReasonConverter _$VideoRemoteStateReasonConverterFromJson(
-    Map<String, dynamic> json) {
-  return VideoRemoteStateReasonConverter(
-    _$enumDecode(_$VideoRemoteStateReasonEnumMap, json['e']),
-  );
-}
+        Map<String, dynamic> json) =>
+    VideoRemoteStateReasonConverter(
+      $enumDecode(_$VideoRemoteStateReasonEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$VideoRemoteStateReasonConverterToJson(
         VideoRemoteStateReasonConverter instance) =>
@@ -1279,11 +1201,10 @@ const _$VideoRemoteStateReasonEnumMap = {
 };
 
 VideoRenderModeConverter _$VideoRenderModeConverterFromJson(
-    Map<String, dynamic> json) {
-  return VideoRenderModeConverter(
-    _$enumDecode(_$VideoRenderModeEnumMap, json['e']),
-  );
-}
+        Map<String, dynamic> json) =>
+    VideoRenderModeConverter(
+      $enumDecode(_$VideoRenderModeEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$VideoRenderModeConverterToJson(
         VideoRenderModeConverter instance) =>
@@ -1299,11 +1220,10 @@ const _$VideoRenderModeEnumMap = {
 };
 
 VideoStreamTypeConverter _$VideoStreamTypeConverterFromJson(
-    Map<String, dynamic> json) {
-  return VideoStreamTypeConverter(
-    _$enumDecode(_$VideoStreamTypeEnumMap, json['e']),
-  );
-}
+        Map<String, dynamic> json) =>
+    VideoStreamTypeConverter(
+      $enumDecode(_$VideoStreamTypeEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$VideoStreamTypeConverterToJson(
         VideoStreamTypeConverter instance) =>
@@ -1316,11 +1236,11 @@ const _$VideoStreamTypeEnumMap = {
   VideoStreamType.Low: 1,
 };
 
-WarningCodeConverter _$WarningCodeConverterFromJson(Map<String, dynamic> json) {
-  return WarningCodeConverter(
-    _$enumDecode(_$WarningCodeEnumMap, json['e']),
-  );
-}
+WarningCodeConverter _$WarningCodeConverterFromJson(
+        Map<String, dynamic> json) =>
+    WarningCodeConverter(
+      $enumDecode(_$WarningCodeEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$WarningCodeConverterToJson(
         WarningCodeConverter instance) =>
@@ -1364,11 +1284,10 @@ const _$WarningCodeEnumMap = {
 };
 
 AudioChannelConverter _$AudioChannelConverterFromJson(
-    Map<String, dynamic> json) {
-  return AudioChannelConverter(
-    _$enumDecode(_$AudioChannelEnumMap, json['e']),
-  );
-}
+        Map<String, dynamic> json) =>
+    AudioChannelConverter(
+      $enumDecode(_$AudioChannelEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$AudioChannelConverterToJson(
         AudioChannelConverter instance) =>
@@ -1386,11 +1305,10 @@ const _$AudioChannelEnumMap = {
 };
 
 VideoCodecTypeConverter _$VideoCodecTypeConverterFromJson(
-    Map<String, dynamic> json) {
-  return VideoCodecTypeConverter(
-    _$enumDecode(_$VideoCodecTypeEnumMap, json['e']),
-  );
-}
+        Map<String, dynamic> json) =>
+    VideoCodecTypeConverter(
+      $enumDecode(_$VideoCodecTypeEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$VideoCodecTypeConverterToJson(
         VideoCodecTypeConverter instance) =>
@@ -1406,11 +1324,10 @@ const _$VideoCodecTypeEnumMap = {
 };
 
 StreamPublishStateConverter _$StreamPublishStateConverterFromJson(
-    Map<String, dynamic> json) {
-  return StreamPublishStateConverter(
-    _$enumDecode(_$StreamPublishStateEnumMap, json['e']),
-  );
-}
+        Map<String, dynamic> json) =>
+    StreamPublishStateConverter(
+      $enumDecode(_$StreamPublishStateEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$StreamPublishStateConverterToJson(
         StreamPublishStateConverter instance) =>
@@ -1426,11 +1343,10 @@ const _$StreamPublishStateEnumMap = {
 };
 
 StreamSubscribeStateConverter _$StreamSubscribeStateConverterFromJson(
-    Map<String, dynamic> json) {
-  return StreamSubscribeStateConverter(
-    _$enumDecode(_$StreamSubscribeStateEnumMap, json['e']),
-  );
-}
+        Map<String, dynamic> json) =>
+    StreamSubscribeStateConverter(
+      $enumDecode(_$StreamSubscribeStateEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$StreamSubscribeStateConverterToJson(
         StreamSubscribeStateConverter instance) =>
@@ -1446,11 +1362,10 @@ const _$StreamSubscribeStateEnumMap = {
 };
 
 RtmpStreamingEventConverter _$RtmpStreamingEventConverterFromJson(
-    Map<String, dynamic> json) {
-  return RtmpStreamingEventConverter(
-    _$enumDecode(_$RtmpStreamingEventEnumMap, json['e']),
-  );
-}
+        Map<String, dynamic> json) =>
+    RtmpStreamingEventConverter(
+      $enumDecode(_$RtmpStreamingEventEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$RtmpStreamingEventConverterToJson(
         RtmpStreamingEventConverter instance) =>
@@ -1465,11 +1380,10 @@ const _$RtmpStreamingEventEnumMap = {
 
 AudioSessionOperationRestrictionConverter
     _$AudioSessionOperationRestrictionConverterFromJson(
-        Map<String, dynamic> json) {
-  return AudioSessionOperationRestrictionConverter(
-    _$enumDecode(_$AudioSessionOperationRestrictionEnumMap, json['e']),
-  );
-}
+            Map<String, dynamic> json) =>
+        AudioSessionOperationRestrictionConverter(
+          $enumDecode(_$AudioSessionOperationRestrictionEnumMap, json['e']),
+        );
 
 Map<String, dynamic> _$AudioSessionOperationRestrictionConverterToJson(
         AudioSessionOperationRestrictionConverter instance) =>
@@ -1486,11 +1400,10 @@ const _$AudioSessionOperationRestrictionEnumMap = {
 };
 
 AudioEffectPresetConverter _$AudioEffectPresetConverterFromJson(
-    Map<String, dynamic> json) {
-  return AudioEffectPresetConverter(
-    _$enumDecode(_$AudioEffectPresetEnumMap, json['e']),
-  );
-}
+        Map<String, dynamic> json) =>
+    AudioEffectPresetConverter(
+      $enumDecode(_$AudioEffectPresetEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$AudioEffectPresetConverterToJson(
         AudioEffectPresetConverter instance) =>
@@ -1521,11 +1434,10 @@ const _$AudioEffectPresetEnumMap = {
 };
 
 VoiceBeautifierPresetConverter _$VoiceBeautifierPresetConverterFromJson(
-    Map<String, dynamic> json) {
-  return VoiceBeautifierPresetConverter(
-    _$enumDecode(_$VoiceBeautifierPresetEnumMap, json['e']),
-  );
-}
+        Map<String, dynamic> json) =>
+    VoiceBeautifierPresetConverter(
+      $enumDecode(_$VoiceBeautifierPresetEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$VoiceBeautifierPresetConverterToJson(
         VoiceBeautifierPresetConverter instance) =>
@@ -1550,11 +1462,10 @@ const _$VoiceBeautifierPresetEnumMap = {
 };
 
 AudienceLatencyLevelTypeConverter _$AudienceLatencyLevelTypeConverterFromJson(
-    Map<String, dynamic> json) {
-  return AudienceLatencyLevelTypeConverter(
-    _$enumDecode(_$AudienceLatencyLevelTypeEnumMap, json['e']),
-  );
-}
+        Map<String, dynamic> json) =>
+    AudienceLatencyLevelTypeConverter(
+      $enumDecode(_$AudienceLatencyLevelTypeEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$AudienceLatencyLevelTypeConverterToJson(
         AudienceLatencyLevelTypeConverter instance) =>
@@ -1567,11 +1478,10 @@ const _$AudienceLatencyLevelTypeEnumMap = {
   AudienceLatencyLevelType.UltraLowLatency: 2,
 };
 
-LogLevelConverter _$LogLevelConverterFromJson(Map<String, dynamic> json) {
-  return LogLevelConverter(
-    _$enumDecode(_$LogLevelEnumMap, json['e']),
-  );
-}
+LogLevelConverter _$LogLevelConverterFromJson(Map<String, dynamic> json) =>
+    LogLevelConverter(
+      $enumDecode(_$LogLevelEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$LogLevelConverterToJson(LogLevelConverter instance) =>
     <String, dynamic>{
@@ -1587,11 +1497,10 @@ const _$LogLevelEnumMap = {
 };
 
 CaptureBrightnessLevelTypeConverter
-    _$CaptureBrightnessLevelTypeConverterFromJson(Map<String, dynamic> json) {
-  return CaptureBrightnessLevelTypeConverter(
-    _$enumDecode(_$CaptureBrightnessLevelTypeEnumMap, json['e']),
-  );
-}
+    _$CaptureBrightnessLevelTypeConverterFromJson(Map<String, dynamic> json) =>
+        CaptureBrightnessLevelTypeConverter(
+          $enumDecode(_$CaptureBrightnessLevelTypeEnumMap, json['e']),
+        );
 
 Map<String, dynamic> _$CaptureBrightnessLevelTypeConverterToJson(
         CaptureBrightnessLevelTypeConverter instance) =>
@@ -1607,11 +1516,10 @@ const _$CaptureBrightnessLevelTypeEnumMap = {
 };
 
 SuperResolutionStateReasonConverter
-    _$SuperResolutionStateReasonConverterFromJson(Map<String, dynamic> json) {
-  return SuperResolutionStateReasonConverter(
-    _$enumDecode(_$SuperResolutionStateReasonEnumMap, json['e']),
-  );
-}
+    _$SuperResolutionStateReasonConverterFromJson(Map<String, dynamic> json) =>
+        SuperResolutionStateReasonConverter(
+          $enumDecode(_$SuperResolutionStateReasonEnumMap, json['e']),
+        );
 
 Map<String, dynamic> _$SuperResolutionStateReasonConverterToJson(
         SuperResolutionStateReasonConverter instance) =>
@@ -1627,11 +1535,10 @@ const _$SuperResolutionStateReasonEnumMap = {
 };
 
 UploadErrorReasonConverter _$UploadErrorReasonConverterFromJson(
-    Map<String, dynamic> json) {
-  return UploadErrorReasonConverter(
-    _$enumDecode(_$UploadErrorReasonEnumMap, json['e']),
-  );
-}
+        Map<String, dynamic> json) =>
+    UploadErrorReasonConverter(
+      $enumDecode(_$UploadErrorReasonEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$UploadErrorReasonConverterToJson(
         UploadErrorReasonConverter instance) =>
@@ -1646,11 +1553,10 @@ const _$UploadErrorReasonEnumMap = {
 };
 
 CloudProxyTypeConverter _$CloudProxyTypeConverterFromJson(
-    Map<String, dynamic> json) {
-  return CloudProxyTypeConverter(
-    _$enumDecode(_$CloudProxyTypeEnumMap, json['e']),
-  );
-}
+        Map<String, dynamic> json) =>
+    CloudProxyTypeConverter(
+      $enumDecode(_$CloudProxyTypeEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$CloudProxyTypeConverterToJson(
         CloudProxyTypeConverter instance) =>
@@ -1665,11 +1571,10 @@ const _$CloudProxyTypeEnumMap = {
 };
 
 ExperienceQualityTypeConverter _$ExperienceQualityTypeConverterFromJson(
-    Map<String, dynamic> json) {
-  return ExperienceQualityTypeConverter(
-    _$enumDecode(_$ExperienceQualityTypeEnumMap, json['e']),
-  );
-}
+        Map<String, dynamic> json) =>
+    ExperienceQualityTypeConverter(
+      $enumDecode(_$ExperienceQualityTypeEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$ExperienceQualityTypeConverterToJson(
         ExperienceQualityTypeConverter instance) =>
@@ -1683,11 +1588,10 @@ const _$ExperienceQualityTypeEnumMap = {
 };
 
 ExperiencePoorReasonConverter _$ExperiencePoorReasonConverterFromJson(
-    Map<String, dynamic> json) {
-  return ExperiencePoorReasonConverter(
-    _$enumDecode(_$ExperiencePoorReasonEnumMap, json['e']),
-  );
-}
+        Map<String, dynamic> json) =>
+    ExperiencePoorReasonConverter(
+      $enumDecode(_$ExperiencePoorReasonEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$ExperiencePoorReasonConverterToJson(
         ExperiencePoorReasonConverter instance) =>
@@ -1704,11 +1608,10 @@ const _$ExperiencePoorReasonEnumMap = {
 };
 
 VoiceConversionPresetConverter _$VoiceConversionPresetConverterFromJson(
-    Map<String, dynamic> json) {
-  return VoiceConversionPresetConverter(
-    _$enumDecode(_$VoiceConversionPresetEnumMap, json['e']),
-  );
-}
+        Map<String, dynamic> json) =>
+    VoiceConversionPresetConverter(
+      $enumDecode(_$VoiceConversionPresetEnumMap, json['e']),
+    );
 
 Map<String, dynamic> _$VoiceConversionPresetConverterToJson(
         VoiceConversionPresetConverter instance) =>
@@ -1725,11 +1628,10 @@ const _$VoiceConversionPresetEnumMap = {
 };
 
 VirtualBackgroundSourceTypeConverter
-    _$VirtualBackgroundSourceTypeConverterFromJson(Map<String, dynamic> json) {
-  return VirtualBackgroundSourceTypeConverter(
-    _$enumDecode(_$VirtualBackgroundSourceTypeEnumMap, json['e']),
-  );
-}
+    _$VirtualBackgroundSourceTypeConverterFromJson(Map<String, dynamic> json) =>
+        VirtualBackgroundSourceTypeConverter(
+          $enumDecode(_$VirtualBackgroundSourceTypeEnumMap, json['e']),
+        );
 
 Map<String, dynamic> _$VirtualBackgroundSourceTypeConverterToJson(
         VirtualBackgroundSourceTypeConverter instance) =>
@@ -1744,11 +1646,10 @@ const _$VirtualBackgroundSourceTypeEnumMap = {
 };
 
 VirtualBackgroundBlurDegreeConverter
-    _$VirtualBackgroundBlurDegreeConverterFromJson(Map<String, dynamic> json) {
-  return VirtualBackgroundBlurDegreeConverter(
-    _$enumDecode(_$VirtualBackgroundBlurDegreeEnumMap, json['e']),
-  );
-}
+    _$VirtualBackgroundBlurDegreeConverterFromJson(Map<String, dynamic> json) =>
+        VirtualBackgroundBlurDegreeConverter(
+          $enumDecode(_$VirtualBackgroundBlurDegreeEnumMap, json['e']),
+        );
 
 Map<String, dynamic> _$VirtualBackgroundBlurDegreeConverterToJson(
         VirtualBackgroundBlurDegreeConverter instance) =>
@@ -1764,11 +1665,10 @@ const _$VirtualBackgroundBlurDegreeEnumMap = {
 
 VirtualBackgroundSourceStateReasonConverter
     _$VirtualBackgroundSourceStateReasonConverterFromJson(
-        Map<String, dynamic> json) {
-  return VirtualBackgroundSourceStateReasonConverter(
-    _$enumDecode(_$VirtualBackgroundSourceStateReasonEnumMap, json['e']),
-  );
-}
+            Map<String, dynamic> json) =>
+        VirtualBackgroundSourceStateReasonConverter(
+          $enumDecode(_$VirtualBackgroundSourceStateReasonEnumMap, json['e']),
+        );
 
 Map<String, dynamic> _$VirtualBackgroundSourceStateReasonConverterToJson(
         VirtualBackgroundSourceStateReasonConverter instance) =>
diff --git a/lib/src/enums.dart b/lib/src/enums.dart
index b155f4fb3..a8eebe093 100644
--- a/lib/src/enums.dart
+++ b/lib/src/enums.dart
@@ -137,7 +137,6 @@ enum AudioLocalState {
 
 /// The information acquisition state
 enum AudioFileInfoError {
-
   /// Successfully get the information of an audio file.
   @JsonValue(0)
   Ok,
@@ -232,20 +231,20 @@ enum AudioMixingDualMonoMode {
   @JsonValue(0)
   Auto,
 
-  /// 1: Left channel mode. This mode replaces the audio of the right channel 
-  /// with the audio of the left channel, which means the user can only hear the 
+  /// 1: Left channel mode. This mode replaces the audio of the right channel
+  /// with the audio of the left channel, which means the user can only hear the
   /// audio of the left channel.
   @JsonValue(1)
   L,
 
-  /// 2: Right channel mode. This mode replaces the audio of the left channel 
-  /// with the audio of the right channel, which means the user can only hear the 
+  /// 2: Right channel mode. This mode replaces the audio of the left channel
+  /// with the audio of the right channel, which means the user can only hear the
   /// audio of the right channel.
   @JsonValue(2)
   R,
 
-  /// 3: Mixed channel mode. This mode mixes the audio of the left channel and the 
-  /// right channel, which means the user can hear the audio of the left channel 
+  /// 3: Mixed channel mode. This mode mixes the audio of the left channel and the
+  /// right channel, which means the user can hear the audio of the left channel
   /// and the right channel at the same time.
   @JsonValue(3)
   MIX,
@@ -2617,17 +2616,17 @@ enum VirtualBackgroundSourceType {
 
 /// The degree of blurring applied to the custom background image
 enum VirtualBackgroundBlurDegree {
-  /// The degree of blurring applied to the custom background image is low. The 
+  /// The degree of blurring applied to the custom background image is low. The
   /// user can almost see the background clearly.
   @JsonValue(1)
   Low,
 
-  /// The degree of blurring applied to the custom background image is medium. 
+  /// The degree of blurring applied to the custom background image is medium.
   /// It is difficult for the user to recognize details in the background.
   @JsonValue(2)
   Medium,
 
-  /// (Default) The degree of blurring applied to the custom background image is 
+  /// (Default) The degree of blurring applied to the custom background image is
   /// high. The user can barely see any distinguishing features in the background.
   @JsonValue(3)
   High,
diff --git a/lib/src/events.dart b/lib/src/events.dart
index 682cc81ae..3a584360d 100644
--- a/lib/src/events.dart
+++ b/lib/src/events.dart
@@ -166,6 +166,9 @@ typedef UploadLogResultCallback = void Function(
 // ignore: public_member_api_docs
 typedef VirtualBackgroundSourceEnabledCallback = void Function(
     bool enabled, VirtualBackgroundSourceStateReason reason);
+// ignore: public_member_api_docs
+typedef SnapshotTakenCallback = void Function(String channel, int uid,
+    String filePath, int width, int height, int errCode);
 
 /// The SDK uses the [RtcEngineEventHandler] class to send callbacks to the application, and the application inherits the methods of this class to retrieve these callbacks.
 ///
@@ -1048,6 +1051,29 @@ class RtcEngineEventHandler {
   /// - [VirtualBackgroundSourceStateReason] `reason`: The reason why the virtual background is not successfully enabled or the message that confirms success. See [VirtualBackgroundSourceStateReason].
   VirtualBackgroundSourceEnabledCallback? virtualBackgroundSourceEnabled;
 
+  /// Reports the result of taking a video snapshot.
+  ///
+  /// Since
+  /// v3.5.2
+  /// After a successful takeSnapshot method call, the SDK triggers this callback
+  /// to report whether the snapshot is successfully taken as well as the details
+  /// for the snapshot taken.
+  ///
+  /// Parameters
+  /// - channel	The channel name.
+  /// - uid	The user ID of the user. A uid of 0 indicates the local user.
+  /// - filePath	The local path of the snapshot.
+  /// - width	The width (px) of the snapshot.
+  /// - height	The height (px) of the snapshot.
+  /// - errCode	The message that confirms success or the reason why the snapshot
+  /// is not successfully taken:
+  ///     - 0: Success.
+  ///     - < 0: Failure.
+  ///     - -1: The SDK fails to write data to a file or encode a JPEG image.
+  ///     - -2: The SDK does not find the video stream of the specified user within
+  /// one second after the takeSnapshot method call succeeds.
+  SnapshotTakenCallback? snapshotTaken;
+
   /// Constructs a [RtcEngineEventHandler]
   RtcEngineEventHandler({
     this.warning,
@@ -1132,6 +1158,7 @@ class RtcEngineEventHandler {
     this.uploadLogResult,
     this.airPlayIsConnected,
     this.virtualBackgroundSourceEnabled,
+    this.snapshotTaken,
   });
 
   // ignore: public_member_api_docs
@@ -1461,6 +1488,10 @@ class RtcEngineEventHandler {
         virtualBackgroundSourceEnabled?.call(data[0],
             VirtualBackgroundSourceStateReasonConverter.fromValue(data[1]).e);
         break;
+      case 'SnapshotTaken':
+        snapshotTaken?.call(
+            data[0], data[1], data[2], data[3], data[4], data[5]);
+        break;
     }
   }
 }
diff --git a/lib/src/rtc_engine.dart b/lib/src/rtc_engine.dart
index c07a58a05..2190f0d6d 100644
--- a/lib/src/rtc_engine.dart
+++ b/lib/src/rtc_engine.dart
@@ -1051,9 +1051,13 @@ class RtcEngine with RtcEngineInterface {
   }
 
   @override
-  Future<void> startEchoTest(int intervalInSeconds) {
+  Future<void> startEchoTest(
+      {int? intervalInSeconds, EchoTestConfiguration? config}) {
+    assert(intervalInSeconds == null || config == null,
+        'Only need one of the params');
     return _invokeMethod('startEchoTest', {
       'intervalInSeconds': intervalInSeconds,
+      'config': config?.toJson(),
     });
   }
 
@@ -1296,6 +1300,15 @@ class RtcEngine with RtcEngineInterface {
       'backgroundSource': backgroundSource.toJson(),
     });
   }
+
+  @override
+  Future<void> takeSnapshot(String channel, int uid, String filePath) {
+    return _invokeMethod('takeSnapshot', {
+      'channel': channel,
+      'uid': uid,
+      'filePath': filePath,
+    });
+  }
 }
 
 /// @nodoc
@@ -1634,6 +1647,29 @@ mixin RtcEngineInterface
   /// - Kirin 900 series 980 and later
   Future<void> enableVirtualBackground(
       bool enabled, VirtualBackgroundSource backgroundSource);
+
+  /// Takes a snapshot of a video stream.
+  ///
+  /// Since
+  /// v3.5.2
+  ///
+  /// This method takes a snapshot of a video stream from the specified user, generates a JPG image, and saves it to the specified path.
+  ///
+  /// The method is asynchronous, and the SDK has not taken the snapshot when the method call returns. After a successful method call, the SDK triggers the onSnapshotTaken callback to report whether the snapshot is successfully taken as well as the details of the snapshot taken.
+  ///
+  /// Note
+  /// - Call this method after joining a channel.
+  /// - If the video of the specified user is pre-processed, for example, added with watermarks or image enhancement effects, the generated snapshot also includes the pre-processing effects.
+  ///
+  /// Parameters
+  /// - channel	The channel name.
+  /// - uid	The user ID of the user. Set uid as 0 if you want to take a snapshot of the local user's video.
+  /// - filePath	The local path (including the filename extensions) for the snapshot. For example, /storage/emulated/0/Android/data/<package name>/files/example.jpg. Ensure that the path you specify exists and is writable.
+  ///
+  /// Returns
+  /// - 0: Success.
+  /// - < 0: Failure.
+  Future<void> takeSnapshot(String channel, int uid, String filePath);
 }
 
 /// @nodoc
@@ -2976,7 +3012,10 @@ mixin RtcTestInterface {
   /// - In the [ChannelProfile.LiveBroadcasting] profile, only a host can call this method.
   ///
   /// **Parameter** [intervalInSeconds] The time interval (s) between when you speak and when the recording plays back.
-  Future<void> startEchoTest(int intervalInSeconds);
+  ///
+  /// **Parameter** [config] The configuration of the audio and video call loop test. See [EchoTestConfiguration].
+  Future<void> startEchoTest(
+      {int? intervalInSeconds, EchoTestConfiguration? config});
 
   /// Stops the audio call test.
   Future<void> stopEchoTest();
diff --git a/pubspec.yaml b/pubspec.yaml
index 067c47a9a..cac24e014 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -13,7 +13,7 @@ dependencies:
     sdk: flutter
   flutter_web_plugins:
     sdk: flutter
-  json_annotation: ^4.0.0
+  json_annotation: ^4.4.0
 dev_dependencies:
   integration_test:
     sdk: flutter
@@ -23,7 +23,7 @@ dev_dependencies:
     sdk: flutter
   pedantic: ^1.11.0
   build_runner: ^1.11.5
-  json_serializable: ^4.0.2
+  json_serializable: ^6.1.1
 flutter:
   plugin:
     platforms: