diff --git a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/data/jce/PushNotifyPack.kt b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/data/jce/PushNotifyPack.kt
index 4bdc99b9d..4f44c6b57 100644
--- a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/data/jce/PushNotifyPack.kt
+++ b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/data/jce/PushNotifyPack.kt
@@ -25,8 +25,9 @@ internal data class RequestPushNotify(
     @SerialId(13) val svrip: Int?
 ) : JceStruct, Packet
 
+@Suppress("ArrayInDataClass")
 @Serializable
-internal class MsgInfo(
+internal data class MsgInfo(
     @SerialId(0) val lFromUin: Long = 0L,
     @SerialId(1) val uMsgTime: Long = 0L,
     @SerialId(2) val shMsgType: Short,
@@ -51,7 +52,7 @@ internal class MsgInfo(
 
 
 @Serializable
-class ShareData(
+internal class ShareData(
     @SerialId(0) val pkgname: String = "",
     @SerialId(1) val msgtail: String = "",
     @SerialId(2) val picurl: String = "",
@@ -59,13 +60,13 @@ class ShareData(
 ) : JceStruct
 
 @Serializable
-class TempMsgHead(
+internal class TempMsgHead(
     @SerialId(0) val c2c_type: Int? = 0,
     @SerialId(1) val serviceType: Int? = 0
 ) : JceStruct
 
 @Serializable
-class CPicInfo(
+internal class CPicInfo(
     @SerialId(0) val vPath: ByteArray = EMPTY_BYTE_ARRAY,
     @SerialId(1) val vHost: ByteArray? = EMPTY_BYTE_ARRAY
 ) : JceStruct
\ No newline at end of file
diff --git a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/data/jce/RequestPacket.kt b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/data/jce/RequestPacket.kt
index 36adb78a6..da6626ff8 100644
--- a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/data/jce/RequestPacket.kt
+++ b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/data/jce/RequestPacket.kt
@@ -8,7 +8,7 @@ import net.mamoe.mirai.qqandroid.network.protocol.packet.EMPTY_BYTE_ARRAY
 private val EMPTY_MAP = mapOf<String, String>()
 
 @Serializable
-class RequestPacket(
+internal class RequestPacket(
     @SerialId(1) val iVersion: Short = 3,
     @SerialId(2) val cPacketType: Byte = 0,
     @SerialId(3) val iMessageType: Int = 0,
@@ -22,16 +22,16 @@ class RequestPacket(
 ) : JceStruct
 
 @Serializable
-class RequestDataVersion3(
+internal class RequestDataVersion3(
     @SerialId(0) val map: Map<String, ByteArray> // 注意: ByteArray 不能直接放序列化的 JceStruct!! 要放类似 RequestDataStructSvcReqRegister 的
 ) : JceStruct
 
 @Serializable
-class RequestDataVersion2(
+internal class RequestDataVersion2(
     @SerialId(0) val map: Map<String, Map<String, ByteArray>>
 ) : JceStruct
 
 @Serializable
-class RequestDataStructSvcReqRegister(
+internal class RequestDataStructSvcReqRegister(
     @SerialId(0) val struct: SvcReqRegister
 ) : JceStruct
\ No newline at end of file
diff --git a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/data/jce/SvcReqRegister.kt b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/data/jce/SvcReqRegister.kt
index a7415ab7b..8636849b7 100644
--- a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/data/jce/SvcReqRegister.kt
+++ b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/data/jce/SvcReqRegister.kt
@@ -1,12 +1,11 @@
 package net.mamoe.mirai.qqandroid.network.protocol.data.jce
 
-import kotlinx.serialization.Polymorphic
 import kotlinx.serialization.SerialId
 import kotlinx.serialization.Serializable
 import net.mamoe.mirai.qqandroid.io.JceStruct
 
 @Serializable
-class SvcReqRegister(
+internal class SvcReqRegister(
     @SerialId(0) val lUin: Long = 0L,
     @SerialId(1) val lBid: Long = 0L,
     @SerialId(2) val cConnType: Byte = 0,
diff --git a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/data/proto/FriendListCommon.kt b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/data/proto/FriendListCommon.kt
index b66fed14b..00f435186 100644
--- a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/data/proto/FriendListCommon.kt
+++ b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/data/proto/FriendListCommon.kt
@@ -6,9 +6,9 @@ import net.mamoe.mirai.qqandroid.io.ProtoBuf
 import net.mamoe.mirai.qqandroid.network.protocol.packet.EMPTY_BYTE_ARRAY
 
 @Serializable
-class Vec0xd50 : ProtoBuf {
+internal class Vec0xd50 : ProtoBuf {
     @Serializable
-    class ExtSnsFrdData(
+    internal class ExtSnsFrdData(
         @SerialId(1) val frdUin: Long = 0L,
         @SerialId(91001) val musicSwitch: ByteArray = EMPTY_BYTE_ARRAY,
         @SerialId(101001) val mutualmarkAlienation: ByteArray = EMPTY_BYTE_ARRAY,
@@ -18,7 +18,7 @@ class Vec0xd50 : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class RspBody(
+    internal class RspBody(
         @SerialId(1) val msgUpdateData: List<Vec0xd50.ExtSnsFrdData>? = null,
         @SerialId(11) val over: Int = 0,
         @SerialId(12) val nextStart: Int = 0,
@@ -26,7 +26,7 @@ class Vec0xd50 : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class ReqBody(
+    internal class ReqBody(
         @SerialId(1) val appid: Long = 0L,
         @SerialId(2) val maxPkgSize: Int = 0,
         @SerialId(3) val startTime: Int = 0,
@@ -41,28 +41,28 @@ class Vec0xd50 : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class KSingRelationInfo(
+    internal class KSingRelationInfo(
         @SerialId(1) val flag: Int = 0
     ) : ProtoBuf
 }
 
 @Serializable
-class Vec0xd6b : ProtoBuf {
+internal class Vec0xd6b : ProtoBuf {
     @Serializable
-    class ReqBody(
+    internal class ReqBody(
         @SerialId(1) val maxPkgSize: Int = 0,
         @SerialId(2) val startTime: Int = 0,
         @SerialId(11) val uinList: List<Long>? = null
     ) : ProtoBuf
 
     @Serializable
-    class RspBody(
+    internal class RspBody(
         @SerialId(11) val msgMutualmarkData: List<Vec0xd6b.MutualMarkData>? = null,
         @SerialId(12) val uint64UnfinishedUins: List<Long>? = null
     ) : ProtoBuf
 
     @Serializable
-    class MutualMarkData(
+    internal class MutualMarkData(
         @SerialId(1) val frdUin: Long = 0L,
         @SerialId(2) val result: Int = 0
         // @SerialId(11) val mutualmarkInfo: List<Mutualmark.MutualMark>? = null
@@ -70,9 +70,9 @@ class Vec0xd6b : ProtoBuf {
 }
 
 @Serializable
-class Mutualmark : ProtoBuf {
+internal class Mutualmark : ProtoBuf {
     @Serializable
-    class MutualmarkInfo(
+    internal class MutualmarkInfo(
         @SerialId(1) val lastActionTime: Long = 0L,
         @SerialId(2) val level: Int = 0,
         @SerialId(3) val lastChangeTime: Long = 0L,
@@ -86,7 +86,7 @@ class Mutualmark : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class ResourceInfo17(
+    internal class ResourceInfo17(
         @SerialId(1) val dynamicUrl: ByteArray = EMPTY_BYTE_ARRAY,
         @SerialId(2) val staticUrl: ByteArray = EMPTY_BYTE_ARRAY,
         @SerialId(3) val cartoonUrl: ByteArray = EMPTY_BYTE_ARRAY,
diff --git a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/data/proto/ImageRequest.kt b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/data/proto/ImageRequest.kt
index d2fbf1aae..49e0cf3b7 100644
--- a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/data/proto/ImageRequest.kt
+++ b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/data/proto/ImageRequest.kt
@@ -2,8 +2,8 @@ package net.mamoe.mirai.qqandroid.network.protocol.data.proto
 
 import kotlinx.serialization.SerialId
 import kotlinx.serialization.Serializable
-import net.mamoe.mirai.qqandroid.network.protocol.packet.EMPTY_BYTE_ARRAY
 import net.mamoe.mirai.qqandroid.io.ProtoBuf
+import net.mamoe.mirai.qqandroid.network.protocol.packet.EMPTY_BYTE_ARRAY
 import net.mamoe.mirai.utils.currentTimeSeconds
 
 interface ImgReq : ProtoBuf
diff --git a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/data/proto/Msg.kt b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/data/proto/Msg.kt
index f2c9cf1c9..68f3773b1 100644
--- a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/data/proto/Msg.kt
+++ b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/data/proto/Msg.kt
@@ -8,29 +8,29 @@ import net.mamoe.mirai.qqandroid.io.ProtoBuf
 import net.mamoe.mirai.qqandroid.network.protocol.packet.EMPTY_BYTE_ARRAY
 
 @Serializable
-class ImCommon : ProtoBuf {
+internal class ImCommon : ProtoBuf {
     @Serializable
-    class GroupInfo(
+    internal class GroupInfo(
         @SerialId(1) val groupId: Long = 0L,
         @SerialId(2) val groupType: Int /* enum */ = 1
     ) : ProtoBuf
 
     @Serializable
-    class Signature(
+    internal class Signature(
         @SerialId(1) val keyType: Int = 0,
         @SerialId(2) val sessionAppId: Int = 0,
         @SerialId(3) val sessionKey: ByteArray = EMPTY_BYTE_ARRAY
     ) : ProtoBuf
 
     @Serializable
-    class Token(
+    internal class Token(
         @SerialId(1) val buf: ByteArray = EMPTY_BYTE_ARRAY,
         @SerialId(2) val c2cType: Int = 0,
         @SerialId(3) val serviceType: Int = 0
     ) : ProtoBuf
 
     @Serializable
-    class User(
+    internal class User(
         @SerialId(1) val uin: Long = 0L,
         @SerialId(2) val appId: Int = 0,
         @SerialId(3) val instanceId: Int = 0,
@@ -45,9 +45,9 @@ class ImCommon : ProtoBuf {
 }
 
 @Serializable
-class ImImagent : ProtoBuf {
+internal class ImImagent : ProtoBuf {
     @Serializable
-    class ImAgentHead(
+    internal class ImAgentHead(
         @SerialId(1) val command: Int /* enum */ = 1,
         @SerialId(2) val seq: Int = 0,
         @SerialId(3) val result: Int = 0,
@@ -61,21 +61,21 @@ class ImImagent : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class ImAgentPackage(
+    internal class ImAgentPackage(
         @SerialId(1) val head: ImAgentHead? = null,
         @SerialId(11) val msgSendReq: ImMsg.MsgSendReq? = null,
         @SerialId(12) val msgSendResp: ImMsg.MsgSendResp? = null
     ) : ProtoBuf
 
     @Serializable
-    class Requestinfo(
+    internal class Requestinfo(
         @ProtoType(ProtoNumberType.FIXED) @SerialId(1) val reqIp: Int = 0,
         @SerialId(2) val reqPort: Int = 0,
         @SerialId(3) val reqFlag: Int = 0
     ) : ProtoBuf
 
     @Serializable
-    class Signature(
+    internal class Signature(
         @SerialId(1) val keyType: Int = 0,
         @SerialId(2) val sessionAppId: Int = 0,
         @SerialId(3) val sessionKey: ByteArray = EMPTY_BYTE_ARRAY
@@ -83,23 +83,23 @@ class ImImagent : ProtoBuf {
 }
 
 @Serializable
-class ImMsg : ProtoBuf {
+internal class ImMsg : ProtoBuf {
     @Serializable
-    class C2C(
+    internal class C2C(
         @SerialId(1) val sender: ImCommon.User? = null,
         @SerialId(2) val receiver: ImCommon.User? = null,
         @SerialId(3) val c2cRelation: C2CRelation? = null
     ) : ProtoBuf
 
     @Serializable
-    class C2CRelation(
+    internal class C2CRelation(
         @SerialId(1) val c2cType: Int /* enum */ = 0,
         @SerialId(2) val groupInfo: ImCommon.GroupInfo? = null,
         @SerialId(3) val token: ImCommon.Token? = null
     ) : ProtoBuf
 
     @Serializable
-    class ContentHead(
+    internal class ContentHead(
         @SerialId(1) val pkgNum: Int = 1,
         @SerialId(2) val pkgIndex: Int = 0,
         @SerialId(3) val seq: Int = 0,
@@ -113,27 +113,27 @@ class ImMsg : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class Group(
+    internal class Group(
         @SerialId(1) val sender: ImCommon.User? = null,
         @SerialId(2) val receiver: ImCommon.User? = null,
         @SerialId(3) val groupInfo: ImCommon.GroupInfo? = null
     ) : ProtoBuf
 
     @Serializable
-    class Msg(
+    internal class Msg(
         @SerialId(1) val head: MsgHead? = null,
         @SerialId(2) val body: ImMsgBody.MsgBody? = null
     ) : ProtoBuf
 
     @Serializable
-    class MsgHead(
+    internal class MsgHead(
         @SerialId(1) val routingHead: RoutingHead? = null,
         @SerialId(2) val contentHead: ContentHead? = null,
         @SerialId(3) val gbkTmpMsgBody: ByteArray = EMPTY_BYTE_ARRAY
     ) : ProtoBuf
 
     @Serializable
-    class MsgSendReq(
+    internal class MsgSendReq(
         @SerialId(1) val msg: Msg? = null,
         @SerialId(2) val buMsg: ByteArray = EMPTY_BYTE_ARRAY,
         @SerialId(3) val msgTailId: Int = 0,
@@ -142,19 +142,19 @@ class ImMsg : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class MsgSendResp
+    internal class MsgSendResp
 
     @Serializable
-    class RoutingHead(
+    internal class RoutingHead(
         @SerialId(1) val c2c: C2C? = null,
         @SerialId(2) val group: Group? = null
     ) : ProtoBuf
 }
 
 @Serializable
-class ImMsgBody : ProtoBuf {
+internal class ImMsgBody : ProtoBuf {
     @Serializable
-    class AnonymousGroupMsg(
+    internal class AnonymousGroupMsg(
         @SerialId(1) val flags: Int = 0,
         @SerialId(2) val anonId: ByteArray = EMPTY_BYTE_ARRAY,
         @SerialId(3) val anonNick: ByteArray = EMPTY_BYTE_ARRAY,
@@ -165,7 +165,7 @@ class ImMsgBody : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class ApolloActMsg(
+    internal class ApolloActMsg(
         @SerialId(1) val actionId: Int = 0,
         @SerialId(2) val actionName: ByteArray = EMPTY_BYTE_ARRAY,
         @SerialId(3) val actionText: ByteArray = EMPTY_BYTE_ARRAY,
@@ -182,7 +182,7 @@ class ImMsgBody : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class ArkAppElem(
+    internal class ArkAppElem(
         @SerialId(1) val appName: String = "",
         @SerialId(2) val minVersion: String = "",
         @SerialId(3) val xmlTemplate: String = "",
@@ -190,7 +190,7 @@ class ImMsgBody : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class Attr(
+    internal class Attr(
         @ProtoType(ProtoNumberType.SIGNED) @SerialId(1) val codePage: Int = -1,
         @SerialId(2) val time: Int = 1,
         @SerialId(3) val random: Int = 0,
@@ -204,32 +204,32 @@ class ImMsgBody : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class BitAppMsg(
+    internal class BitAppMsg(
         @SerialId(1) val buf: ByteArray = EMPTY_BYTE_ARRAY
     ) : ProtoBuf
 
     @Serializable
-    class BlessingMessage(
+    internal class BlessingMessage(
         @SerialId(1) val msgType: Int = 0,
         @SerialId(2) val exFlag: Int = 0
     ) : ProtoBuf
 
     @Serializable
-    class CommonElem(
+    internal class CommonElem(
         @SerialId(1) val serviceType: Int = 0,
         @SerialId(2) val pbElem: ByteArray = EMPTY_BYTE_ARRAY,
         @SerialId(3) val businessType: Int = 0
     ) : ProtoBuf
 
     @Serializable
-    class ConferenceTipsInfo(
+    internal class ConferenceTipsInfo(
         @SerialId(1) val sessionType: Int = 0,
         @SerialId(2) val sessionUin: Long = 0L,
         @SerialId(3) val text: String = ""
     ) : ProtoBuf
 
     @Serializable
-    class CrmElem(
+    internal class CrmElem(
         @SerialId(1) val crmBuf: ByteArray = EMPTY_BYTE_ARRAY,
         @SerialId(2) val msgResid: ByteArray = EMPTY_BYTE_ARRAY,
         @SerialId(3) val qidianFlag: Int = 0,
@@ -238,7 +238,7 @@ class ImMsgBody : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class CustomElem(
+    internal class CustomElem(
         @SerialId(1) val desc: ByteArray = EMPTY_BYTE_ARRAY,
         @SerialId(2) val data: ByteArray = EMPTY_BYTE_ARRAY,
         @SerialId(3) val enumType: Int /* enum */ = 1,
@@ -247,7 +247,7 @@ class ImMsgBody : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class CustomFace(
+    internal class CustomFace(
         @SerialId(1) val guid: ByteArray = EMPTY_BYTE_ARRAY,
         @SerialId(2) val filePath: String = "",
         @SerialId(3) val shortcut: String = "",
@@ -285,7 +285,7 @@ class ImMsgBody : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class DeliverGiftMsg(
+    internal class DeliverGiftMsg(
         @SerialId(1) val grayTipContent: ByteArray = EMPTY_BYTE_ARRAY,
         @SerialId(2) val animationPackageId: Int = 0,
         @SerialId(3) val animationPackageUrlA: ByteArray = EMPTY_BYTE_ARRAY,
@@ -311,13 +311,13 @@ class ImMsgBody : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class EIMInfo(
+    internal class EIMInfo(
         @SerialId(1) val rootId: Long = 0L,
         @SerialId(2) val flag: Int = 0
     ) : ProtoBuf
 
     @Serializable
-    class Elem(
+    internal class Elem(
         @SerialId(1) val text: Text? = null,
         @SerialId(2) val face: Face? = null,
         @SerialId(3) val onlineImage: OnlineImage? = null,
@@ -374,13 +374,13 @@ class ImMsgBody : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class ElemFlags(
+    internal class ElemFlags(
         @SerialId(1) val flags1: ByteArray = EMPTY_BYTE_ARRAY,
         @SerialId(2) val businessData: ByteArray = EMPTY_BYTE_ARRAY
     ) : ProtoBuf
 
     @Serializable
-    class ElemFlags2(
+    internal class ElemFlags2(
         @SerialId(1) val colorTextId: Int = 0,
         @SerialId(2) val msgId: Long = 0L,
         @SerialId(3) val whisperSessionId: Int = 0,
@@ -397,14 +397,14 @@ class ImMsgBody : ProtoBuf {
         @SerialId(14) val crmFlags: Int = 0
     ) : ProtoBuf {
         @Serializable
-        class Inst(
+        internal class Inst(
             @SerialId(1) val appId: Int = 0,
             @SerialId(2) val instId: Int = 0
         )
     }
 
     @Serializable
-    class ExtraInfo(
+    internal class ExtraInfo(
         @SerialId(1) val nick: ByteArray = EMPTY_BYTE_ARRAY,
         @SerialId(2) val groupCard: ByteArray = EMPTY_BYTE_ARRAY,
         @SerialId(3) val level: Int = 0,
@@ -420,29 +420,29 @@ class ImMsgBody : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class Face(
+    internal class Face(
         @SerialId(1) val index: Int = 0,
         @SerialId(2) val old: ByteArray = EMPTY_BYTE_ARRAY,
         @SerialId(11) val buf: ByteArray = EMPTY_BYTE_ARRAY
     ) : ProtoBuf
 
     @Serializable
-    class FSJMessageElem(
+    internal class FSJMessageElem(
         @SerialId(1) val msgType: Int = 0
     ) : ProtoBuf
 
     @Serializable
-    class FunFace(
+    internal class FunFace(
         @SerialId(1) val msgTurntable: Turntable? = null,
         @SerialId(2) val msgBomb: Bomb? = null
     ) {
         @Serializable
-        class Bomb(
+        internal class Bomb(
             @SerialId(1) val boolBurst: Boolean = false
         )
 
         @Serializable
-        class Turntable(
+        internal class Turntable(
             @SerialId(1) val uint64UinList: List<Long>? = null,
             @SerialId(2) val hitUin: Long = 0L,
             @SerialId(3) val hitUinNick: String = ""
@@ -450,7 +450,7 @@ class ImMsgBody : ProtoBuf {
     }
 
     @Serializable
-    class GeneralFlags(
+    internal class GeneralFlags(
         @SerialId(1) val bubbleDiyTextId: Int = 0,
         @SerialId(2) val groupFlagNew: Int = 0,
         @SerialId(3) val uin: Long = 0L,
@@ -473,7 +473,7 @@ class ImMsgBody : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class GroupBusinessMsg(
+    internal class GroupBusinessMsg(
         @SerialId(1) val flags: Int = 0,
         @SerialId(2) val headUrl: ByteArray = EMPTY_BYTE_ARRAY,
         @SerialId(3) val headClkUrl: ByteArray = EMPTY_BYTE_ARRAY,
@@ -485,7 +485,7 @@ class ImMsgBody : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class GroupFile(
+    internal class GroupFile(
         @SerialId(1) val filename: ByteArray = EMPTY_BYTE_ARRAY,
         @SerialId(2) val fileSize: Long = 0L,
         @SerialId(3) val fileId: ByteArray = EMPTY_BYTE_ARRAY,
@@ -499,18 +499,18 @@ class ImMsgBody : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class GroupPostElem(
+    internal class GroupPostElem(
         @SerialId(1) val transType: Int = 0,
         @SerialId(2) val transMsg: ByteArray = EMPTY_BYTE_ARRAY
     ) : ProtoBuf
 
     @Serializable
-    class GroupPubAccountInfo(
+    internal class GroupPubAccountInfo(
         @SerialId(1) val pubAccount: Long = 0L
     ) : ProtoBuf
 
     @Serializable
-    class LifeOnlineAccount(
+    internal class LifeOnlineAccount(
         @SerialId(1) val uniqueId: Long = 0L,
         @SerialId(2) val op: Int = 0,
         @SerialId(3) val showTime: Int = 0,
@@ -523,20 +523,20 @@ class ImMsgBody : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class LightAppElem(
+    internal class LightAppElem(
         @SerialId(1) val data: ByteArray = EMPTY_BYTE_ARRAY,
         @SerialId(2) val msgResid: ByteArray = EMPTY_BYTE_ARRAY
     ) : ProtoBuf
 
     @Serializable
-    class LocationInfo(
+    internal class LocationInfo(
         @SerialId(1) val longitude: Double = 0.0,
         @SerialId(2) val latitude: Double = 0.0,
         @SerialId(3) val desc: ByteArray = EMPTY_BYTE_ARRAY
     ) : ProtoBuf
 
     @Serializable
-    class LolaMsg(
+    internal class LolaMsg(
         @SerialId(1) val msgResid: ByteArray = EMPTY_BYTE_ARRAY,
         @SerialId(2) val encodeContent: ByteArray = EMPTY_BYTE_ARRAY,
         @SerialId(3) val longMsgUrl: ByteArray = EMPTY_BYTE_ARRAY,
@@ -544,7 +544,7 @@ class ImMsgBody : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class LowVersionTips(
+    internal class LowVersionTips(
         @SerialId(1) val businessId: Int = 0,
         @SerialId(2) val sessionType: Int = 0,
         @SerialId(3) val sessionUin: Long = 0L,
@@ -553,7 +553,7 @@ class ImMsgBody : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class MarketFace(
+    internal class MarketFace(
         @SerialId(1) val faceName: ByteArray = EMPTY_BYTE_ARRAY,
         @SerialId(2) val itemType: Int = 0,
         @SerialId(3) val faceInfo: Int = 0,
@@ -570,7 +570,7 @@ class ImMsgBody : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class MarketTrans(
+    internal class MarketTrans(
         @SerialId(1) val int32Flag: Int = 0,
         @SerialId(2) val xml: ByteArray = EMPTY_BYTE_ARRAY,
         @SerialId(3) val msgResid: ByteArray = EMPTY_BYTE_ARRAY,
@@ -579,26 +579,26 @@ class ImMsgBody : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class MsgBody(
+    internal class MsgBody(
         @SerialId(1) val richText: RichText = RichText(),
         @SerialId(2) val msgContent: ByteArray = EMPTY_BYTE_ARRAY,
         @SerialId(3) val msgEncryptContent: ByteArray = EMPTY_BYTE_ARRAY
     ) : ProtoBuf
 
     @Serializable
-    class MsgBodySubtype4(
+    internal class MsgBodySubtype4(
         @SerialId(1) val msgNotOnlineFile: NotOnlineFile? = null,
         @SerialId(2) val msgTime: Int = 0
     ) : ProtoBuf
 
     @Serializable
-    class NearByMessageType(
+    internal class NearByMessageType(
         @SerialId(1) val type: Int = 0,
         @SerialId(2) val identifyType: Int = 0
     ) : ProtoBuf
 
     @Serializable
-    class NotOnlineFile(
+    internal class NotOnlineFile(
         @SerialId(1) val fileType: Int = 0,
         @SerialId(2) val sig: ByteArray = EMPTY_BYTE_ARRAY,
         @SerialId(3) val fileUuid: ByteArray = EMPTY_BYTE_ARRAY,
@@ -621,7 +621,7 @@ class ImMsgBody : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class NotOnlineImage(
+    internal class NotOnlineImage(
         @SerialId(1) val filePath: String = "",
         @SerialId(2) val fileLen: Int = 0,
         @SerialId(3) val downloadPath: ByteArray = EMPTY_BYTE_ARRAY,
@@ -654,25 +654,25 @@ class ImMsgBody : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class OnlineImage(
+    internal class OnlineImage(
         @SerialId(1) val guid: ByteArray = EMPTY_BYTE_ARRAY,
         @SerialId(2) val filePath: ByteArray = EMPTY_BYTE_ARRAY,
         @SerialId(3) val oldVerSendFile: ByteArray = EMPTY_BYTE_ARRAY
     ) : ProtoBuf
 
     @Serializable
-    class OpenQQData(
+    internal class OpenQQData(
         @SerialId(1) val carQqData: ByteArray = EMPTY_BYTE_ARRAY
     ) : ProtoBuf
 
     @Serializable
-    class PatsElem(
+    internal class PatsElem(
         @SerialId(1) val patType: Int = 0,
         @SerialId(2) val patCount: Int = 0
     ) : ProtoBuf
 
     @Serializable
-    class PcSupportDef(
+    internal class PcSupportDef(
         @SerialId(1) val pcPtlBegin: Int = 0,
         @SerialId(2) val pcPtlEnd: Int = 0,
         @SerialId(3) val macPtlBegin: Int = 0,
@@ -682,7 +682,7 @@ class ImMsgBody : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class Ptt(
+    internal class Ptt(
         @SerialId(1) val fileType: Int = 0,
         @SerialId(2) val srcUin: Long = 0L,
         @SerialId(3) val fileUuid: ByteArray = EMPTY_BYTE_ARRAY,
@@ -710,7 +710,7 @@ class ImMsgBody : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class PubAccInfo(
+    internal class PubAccInfo(
         @SerialId(1) val isInterNum: Int = 0,
         @SerialId(2) val ingMsgTemplateId: String = "",
         @SerialId(3) val ingLongMsgUrl: String = "",
@@ -718,13 +718,13 @@ class ImMsgBody : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class PubAccount(
+    internal class PubAccount(
         @SerialId(1) val buf: ByteArray = EMPTY_BYTE_ARRAY,
         @SerialId(2) val pubAccountUin: Long = 0L
     ) : ProtoBuf
 
     @Serializable
-    class PubGroup(
+    internal class PubGroup(
         @SerialId(1) val nickname: ByteArray = EMPTY_BYTE_ARRAY,
         @SerialId(2) val gender: Int = 0,
         @SerialId(3) val age: Int = 0,
@@ -732,7 +732,7 @@ class ImMsgBody : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class QQLiveOld(
+    internal class QQLiveOld(
         @SerialId(1) val subCmd: Int = 0,
         @SerialId(2) val showText: ByteArray = EMPTY_BYTE_ARRAY,
         @SerialId(3) val param: ByteArray = EMPTY_BYTE_ARRAY,
@@ -740,7 +740,7 @@ class ImMsgBody : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class QQWalletAioBody(
+    internal class QQWalletAioBody(
         @SerialId(1) val senduin: Long = 0L,
         @SerialId(2) val sender: QQWalletAioElem? = null,
         @SerialId(3) val receiver: QQWalletAioElem? = null,
@@ -765,7 +765,7 @@ class ImMsgBody : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class QQWalletAioElem(
+    internal class QQWalletAioElem(
         @SerialId(1) val background: Int = 0,
         @SerialId(2) val icon: Int = 0,
         @SerialId(3) val title: ByteArray = EMPTY_BYTE_ARRAY,
@@ -790,17 +790,17 @@ class ImMsgBody : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class QQWalletMsg(
+    internal class QQWalletMsg(
         @SerialId(1) val aioBody: QQWalletAioBody? = null
     ) : ProtoBuf
 
     @Serializable
-    class RedBagInfo(
+    internal class RedBagInfo(
         @SerialId(1) val redbagType: Int = 0
     ) : ProtoBuf
 
     @Serializable
-    class RichMsg(
+    internal class RichMsg(
         @SerialId(1) val template1: ByteArray = EMPTY_BYTE_ARRAY,
         @SerialId(2) val serviceId: Int = 0,
         @SerialId(3) val msgResid: ByteArray = EMPTY_BYTE_ARRAY,
@@ -810,17 +810,17 @@ class ImMsgBody : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class RichText(
+    internal class RichText(
         @SerialId(1) val attr: Attr? = null,
         @SerialId(2) val elems: MutableList<Elem> = mutableListOf(),
-        @SerialId(3) val notOnlineFile: NotOnlineFile? =null,
-        @SerialId(4) val ptt: Ptt? =null,
+        @SerialId(3) val notOnlineFile: NotOnlineFile? = null,
+        @SerialId(4) val ptt: Ptt? = null,
         @SerialId(5) val tmpPtt: TmpPtt? = null,
         @SerialId(6) val trans211TmpMsg: Trans211TmpMsg? = null
     ) : ProtoBuf
 
     @Serializable
-    class SecretFileMsg(
+    internal class SecretFileMsg(
         @SerialId(1) val fileKey: ByteArray = EMPTY_BYTE_ARRAY,
         @SerialId(2) val fromUin: Long = 0L,
         @SerialId(3) val toUin: Long = 0L,
@@ -839,20 +839,20 @@ class ImMsgBody : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class ShakeWindow(
+    internal class ShakeWindow(
         @SerialId(1) val type: Int = 0,
         @SerialId(2) val reserve: Int = 0,
         @SerialId(3) val uin: Long = 0L
     ) : ProtoBuf
 
     @Serializable
-    class SmallEmoji(
+    internal class SmallEmoji(
         @SerialId(1) val packIdSum: Int = 0,
         @SerialId(2) val imageType: Int = 0
     ) : ProtoBuf
 
     @Serializable
-    class SourceMsg(
+    internal class SourceMsg(
         @SerialId(1) val origSeqs: List<Int>? = null,
         @SerialId(2) val senderUin: Long = 0L,
         @SerialId(3) val time: Int = 0,
@@ -867,7 +867,7 @@ class ImMsgBody : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class Text(
+    internal class Text(
         @SerialId(1) val str: String = "",
         @SerialId(2) val link: String = "",
         @SerialId(3) val attr6Buf: ByteArray = EMPTY_BYTE_ARRAY,
@@ -877,12 +877,12 @@ class ImMsgBody : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class TipsInfo(
+    internal class TipsInfo(
         @SerialId(1) val text: String = ""
     ) : ProtoBuf
 
     @Serializable
-    class TmpPtt(
+    internal class TmpPtt(
         @SerialId(1) val fileType: Int = 0,
         @SerialId(2) val fileUuid: ByteArray = EMPTY_BYTE_ARRAY,
         @SerialId(3) val fileMd5: ByteArray = EMPTY_BYTE_ARRAY,
@@ -898,19 +898,19 @@ class ImMsgBody : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class Trans211TmpMsg(
+    internal class Trans211TmpMsg(
         @SerialId(1) val msgBody: ByteArray = EMPTY_BYTE_ARRAY,
         @SerialId(2) val c2cCmd: Int = 0
     ) : ProtoBuf
 
     @Serializable
-    class TransElem(
+    internal class TransElem(
         @SerialId(1) val elemType: Int = 0,
         @SerialId(2) val elemValue: ByteArray = EMPTY_BYTE_ARRAY
     ) : ProtoBuf
 
     @Serializable
-    class VideoFile(
+    internal class VideoFile(
         @SerialId(1) val fileUuid: ByteArray = EMPTY_BYTE_ARRAY,
         @SerialId(2) val fileMd5: ByteArray = EMPTY_BYTE_ARRAY,
         @SerialId(3) val fileName: ByteArray = EMPTY_BYTE_ARRAY,
@@ -938,16 +938,16 @@ class ImMsgBody : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class WorkflowNotifyMsg(
+    internal class WorkflowNotifyMsg(
         @SerialId(1) val extMsg: ByteArray = EMPTY_BYTE_ARRAY,
         @SerialId(2) val createUin: Long = 0L
     ) : ProtoBuf
 }
 
 @Serializable
-class ImMsgHead : ProtoBuf {
+internal class ImMsgHead : ProtoBuf {
     @Serializable
-    class C2CHead(
+    internal class C2CHead(
         @SerialId(1) val toUin: Long = 0L,
         @SerialId(2) val fromUin: Long = 0L,
         @SerialId(3) val ccType: Int = 0,
@@ -962,7 +962,7 @@ class ImMsgHead : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class CSHead(
+    internal class CSHead(
         @SerialId(1) val uin: Long = 0L,
         @SerialId(2) val command: Int = 0,
         @SerialId(3) val seq: Int = 0,
@@ -990,7 +990,7 @@ class ImMsgHead : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class DeltaHead(
+    internal class DeltaHead(
         @SerialId(1) val totalLen: Long = 0L,
         @SerialId(2) val offset: Long = 0L,
         @SerialId(3) val ackOffset: Long = 0L,
@@ -1001,7 +1001,7 @@ class ImMsgHead : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class Head(
+    internal class Head(
         @SerialId(1) val headType: Int = 0,
         @SerialId(2) val msgCsHead: CSHead? = null,
         @SerialId(3) val msgS2cHead: S2CHead? = null,
@@ -1015,7 +1015,7 @@ class ImMsgHead : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class HttpConnHead(
+    internal class HttpConnHead(
         @SerialId(1) val uin: Long = 0L,
         @SerialId(2) val command: Int = 0,
         @SerialId(3) val subCommand: Int = 0,
@@ -1044,14 +1044,14 @@ class ImMsgHead : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class InstCtrl(
+    internal class InstCtrl(
         @SerialId(1) val msgSendToInst: List<InstInfo>? = listOf(),
         @SerialId(2) val msgExcludeInst: List<InstInfo>? = listOf(),
         @SerialId(3) val msgFromInst: InstInfo? = InstInfo()
     ) : ProtoBuf
 
     @Serializable
-    class InstInfo(
+    internal class InstInfo(
         @SerialId(1) val apppid: Int = 0,
         @SerialId(2) val instid: Int = 0,
         @SerialId(3) val platform: Int = 0,
@@ -1059,13 +1059,13 @@ class ImMsgHead : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class LoginSig(
+    internal class LoginSig(
         @SerialId(1) val type: Int = 0,
         @SerialId(2) val sig: ByteArray = EMPTY_BYTE_ARRAY
     ) : ProtoBuf
 
     @Serializable
-    class RedirectMsg(
+    internal class RedirectMsg(
         @ProtoType(ProtoNumberType.FIXED) @SerialId(1) val lastRedirectIp: Int = 0,
         @SerialId(2) val lastRedirectPort: Int = 0,
         @ProtoType(ProtoNumberType.FIXED) @SerialId(3) val redirectIp: Int = 0,
@@ -1074,7 +1074,7 @@ class ImMsgHead : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class S2CHead(
+    internal class S2CHead(
         @SerialId(1) val subMsgtype: Int = 0,
         @SerialId(2) val msgType: Int = 0,
         @SerialId(3) val fromUin: Long = 0L,
@@ -1085,10 +1085,10 @@ class ImMsgHead : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class SConnHead : ProtoBuf
+    internal class SConnHead : ProtoBuf
 
     @Serializable
-    class TransOidbHead(
+    internal class TransOidbHead(
         @SerialId(1) val command: Int = 0,
         @SerialId(2) val serviceType: Int = 0,
         @SerialId(3) val result: Int = 0,
@@ -1097,9 +1097,9 @@ class ImMsgHead : ProtoBuf {
 }
 
 @Serializable
-class ImReceipt : ProtoBuf {
+internal class ImReceipt : ProtoBuf {
     @Serializable
-    class MsgInfo(
+    internal class MsgInfo(
         @SerialId(1) val fromUin: Long = 0L,
         @SerialId(2) val toUin: Long = 0L,
         @SerialId(3) val msgSeq: Int = 0,
@@ -1107,32 +1107,32 @@ class ImReceipt : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    data class ReceiptInfo(
+    data internal class ReceiptInfo(
         @SerialId(1) val readTime: Long = 0L
     ) : ProtoBuf
 
     @Serializable
-    class ReceiptReq(
+    internal class ReceiptReq(
         @SerialId(1) val command: Int /* enum */ = 1,
         @SerialId(2) val msgInfo: MsgInfo? = null
     ) : ProtoBuf
 
     @Serializable
-    data class ReceiptResp(
+    data internal class ReceiptResp(
         @SerialId(1) val command: Int /* enum */ = 1,
         @SerialId(2) val receiptInfo: ReceiptInfo? = null
     ) : ProtoBuf
 }
 
 @Serializable
-class ObjMsg : ProtoBuf {
+internal class ObjMsg : ProtoBuf {
     @Serializable
-    class MsgContentInfo(
+    internal class MsgContentInfo(
         @SerialId(1) val contentInfoId: ByteArray = EMPTY_BYTE_ARRAY,
         @SerialId(2) val msgFile: MsgFile? = null
     ) : ProtoBuf {
         @Serializable
-        class MsgFile(
+        internal class MsgFile(
             @SerialId(1) val busId: Int = 0,
             @SerialId(2) val filePath: ByteArray = EMPTY_BYTE_ARRAY,
             @SerialId(3) val fileSize: Long = 0L,
@@ -1144,14 +1144,14 @@ class ObjMsg : ProtoBuf {
     }
 
     @Serializable
-    class MsgPic(
+    internal class MsgPic(
         @SerialId(1) val smallPicUrl: ByteArray = EMPTY_BYTE_ARRAY,
         @SerialId(2) val originalPicUrl: ByteArray = EMPTY_BYTE_ARRAY,
         @SerialId(3) val localPicId: Int = 0
     ) : ProtoBuf
 
     @Serializable
-    class ObjMsg(
+    internal class ObjMsg(
         @SerialId(1) val msgType: Int = 0,
         @SerialId(2) val title: ByteArray = EMPTY_BYTE_ARRAY,
         @SerialId(3) val bytesAbstact: List<ByteArray>? = null,
@@ -1163,9 +1163,9 @@ class ObjMsg : ProtoBuf {
 }
 
 @Serializable
-class Submsgtype0xc7 : ProtoBuf {
+internal class Submsgtype0xc7 : ProtoBuf {
     @Serializable
-    class RelationalChainChange(
+    internal class RelationalChainChange(
         @SerialId(1) val appid: Long = 0L,
         @SerialId(2) val srcUin: Long = 0L,
         @SerialId(3) val dstUin: Long = 0L,
@@ -1178,7 +1178,7 @@ class Submsgtype0xc7 : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class FriendShipFlagNotify(
+    internal class FriendShipFlagNotify(
         @SerialId(1) val dstUin: Long = 0L,
         @SerialId(2) val level1: Int = 0,
         @SerialId(3) val level2: Int = 0,
@@ -1190,7 +1190,7 @@ class Submsgtype0xc7 : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class ToDegradeItem(
+    internal class ToDegradeItem(
         @SerialId(1) val type: Int /* enum */ = 1,
         @SerialId(2) val oldLevel: Int = 0,
         @SerialId(3) val newLevel: Int = 0,
@@ -1199,7 +1199,7 @@ class Submsgtype0xc7 : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class RelationalChainInfo(
+    internal class RelationalChainInfo(
         @SerialId(1) val type: Int /* enum */ = 1,
         @SerialId(2) val attr: ByteArray = EMPTY_BYTE_ARRAY,
         @SerialId(1002) val intimateInfo: ByteArray = EMPTY_BYTE_ARRAY,
@@ -1208,7 +1208,7 @@ class Submsgtype0xc7 : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class ForwardBody(
+    internal class ForwardBody(
         @SerialId(1) val notifyType: Int = 0,
         @SerialId(2) val opType: Int = 0,
         @SerialId(3000) val msgHotFriendNotify: Submsgtype0xc7.HotFriendNotify? = null,
@@ -1216,7 +1216,7 @@ class Submsgtype0xc7 : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class HotFriendNotify(
+    internal class HotFriendNotify(
         @SerialId(1) val dstUin: Long = 0L,
         @SerialId(2) val praiseHotLevel: Int = 0,
         @SerialId(3) val chatHotLevel: Int = 0,
@@ -1257,20 +1257,20 @@ class Submsgtype0xc7 : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class RelationalChainInfos(
+    internal class RelationalChainInfos(
         @SerialId(1) val msgRelationalChainInfoOld: Submsgtype0xc7.RelationalChainInfo? = null,
         @SerialId(2) val msgRelationalChainInfoNew: Submsgtype0xc7.RelationalChainInfo? = null
     ) : ProtoBuf
 
     @Serializable
-    class ToDegradeInfo(
+    internal class ToDegradeInfo(
         @SerialId(1) val toDegradeItem: List<Submsgtype0xc7.ToDegradeItem>? = null,
         @SerialId(2) val nick: ByteArray = EMPTY_BYTE_ARRAY,
         @SerialId(3) val notifyTime: Long = 0L
     ) : ProtoBuf
 
     @Serializable
-    class MsgBody(
+    internal class MsgBody(
         @SerialId(1) val msgModInfos: List<Submsgtype0xc7.ForwardBody>? = null
     ) : ProtoBuf
 }
diff --git a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/data/proto/MsgCommon.kt b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/data/proto/MsgCommon.kt
index 591e8b148..b7286f5f9 100644
--- a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/data/proto/MsgCommon.kt
+++ b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/data/proto/MsgCommon.kt
@@ -9,16 +9,16 @@ import net.mamoe.mirai.qqandroid.network.protocol.packet.EMPTY_BYTE_ARRAY
  * msf.msgcomm.msg_comm
  */
 @Serializable
-class MsgComm : ProtoBuf {
+internal class MsgComm : ProtoBuf {
     @Serializable
-    class AppShareInfo(
+    internal class AppShareInfo(
         @SerialId(1) val appshareId: Int = 0,
         @SerialId(2) val appshareCookie: ByteArray = EMPTY_BYTE_ARRAY,
         @SerialId(3) val appshareResource: PluginInfo? = null
     ) : ProtoBuf
 
     @Serializable
-    class C2CTmpMsgHead(
+    internal class C2CTmpMsgHead(
         @SerialId(1) val c2cType: Int = 0,
         @SerialId(2) val serviceType: Int = 0,
         @SerialId(3) val groupUin: Long = 0L,
@@ -33,7 +33,7 @@ class MsgComm : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class ContentHead(
+    internal class ContentHead(
         @SerialId(1) val pkgNum: Int = 0,
         @SerialId(2) val pkgIndex: Int = 0,
         @SerialId(3) val divSeq: Int = 0,
@@ -41,7 +41,7 @@ class MsgComm : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class DiscussInfo(
+    internal class DiscussInfo(
         @SerialId(1) val discussUin: Long = 0L,
         @SerialId(2) val discussType: Int = 0,
         @SerialId(3) val discussInfoSeq: Long = 0L,
@@ -50,13 +50,13 @@ class MsgComm : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class ExtGroupKeyInfo(
+    internal class ExtGroupKeyInfo(
         @SerialId(1) val curMaxSeq: Int = 0,
         @SerialId(2) val curTime: Long = 0L
     ) : ProtoBuf
 
     @Serializable
-    class GroupInfo(
+    internal class GroupInfo(
         @SerialId(1) val groupCode: Long = 0L,
         @SerialId(2) val groupType: Int = 0,
         @SerialId(3) val groupInfoSeq: Long = 0L,
@@ -68,7 +68,7 @@ class MsgComm : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class Msg(
+    internal class Msg(
         @SerialId(1) val msgHead: MsgHead,
         @SerialId(2) val contentHead: ContentHead? = null,
         @SerialId(3) val msgBody: ImMsgBody.MsgBody,
@@ -76,7 +76,7 @@ class MsgComm : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class MsgHead(
+    internal class MsgHead(
         @SerialId(1) val fromUin: Long = 0L,
         @SerialId(2) val toUin: Long = 0L,
         @SerialId(3) val msgType: Int = 0,
@@ -108,19 +108,19 @@ class MsgComm : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class MsgType0x210(
+    internal class MsgType0x210(
         @SerialId(1) val subMsgType: Int = 0,
         @SerialId(2) val msgContent: ByteArray = EMPTY_BYTE_ARRAY
     ) : ProtoBuf
 
     @Serializable
-    class MutilTransHead(
+    internal class MutilTransHead(
         @SerialId(1) val status: Int = 0,
         @SerialId(2) val msgId: Int = 0
     ) : ProtoBuf
 
     @Serializable
-    class PluginInfo(
+    internal class PluginInfo(
         @SerialId(1) val resId: Int = 0,
         @SerialId(2) val pkgName: String = "",
         @SerialId(3) val newVer: Int = 0,
@@ -135,13 +135,13 @@ class MsgComm : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class Uin2Nick(
+    internal class Uin2Nick(
         @SerialId(1) val uin: Long = 0L,
         @SerialId(2) val nick: String = ""
     ) : ProtoBuf
 
     @Serializable
-    class UinPairMsg(
+    internal class UinPairMsg(
         @SerialId(1) val lastReadTime: Int = 0,
         @SerialId(2) val peerUin: Long = 0L,
         @SerialId(3) val msgCompleted: Int = 0,
diff --git a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/data/proto/MsgSvc.kt b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/data/proto/MsgSvc.kt
index 8c1173eae..b487b1eb2 100644
--- a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/data/proto/MsgSvc.kt
+++ b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/data/proto/MsgSvc.kt
@@ -7,14 +7,14 @@ import net.mamoe.mirai.qqandroid.io.ProtoBuf
 import net.mamoe.mirai.qqandroid.network.protocol.packet.EMPTY_BYTE_ARRAY
 
 @Serializable
-class MsgSvc : ProtoBuf {
+internal class MsgSvc : ProtoBuf {
     @Serializable
-    class Grp(
+    internal class Grp(
         @SerialId(1) val groupCode: Long = 0L
     ) : ProtoBuf
 
     @Serializable
-    class PbGetMsgResp(
+    internal class PbGetMsgResp(
         @SerialId(1) val result: Int = 0,
         @SerialId(2) val errmsg: String = "",
         @SerialId(3) val syncCookie: ByteArray = EMPTY_BYTE_ARRAY,
@@ -28,7 +28,7 @@ class MsgSvc : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class PbGroupMsgWithDrawReq(
+    internal class PbGroupMsgWithDrawReq(
         @SerialId(1) val subCmd: Int = 0,
         @SerialId(2) val groupType: Int = 0,
         @SerialId(3) val groupCode: Long = 0L,
@@ -36,7 +36,7 @@ class MsgSvc : ProtoBuf {
         @SerialId(5) val userdef: ByteArray = EMPTY_BYTE_ARRAY
     ) : ProtoBuf {
         @Serializable
-        class MessageInfo(
+        internal class MessageInfo(
             @SerialId(1) val msgSeq: Int = 0,
             @SerialId(2) val msgRandom: Int = 0,
             @SerialId(3) val msgType: Int = 0
@@ -44,25 +44,25 @@ class MsgSvc : ProtoBuf {
     }
 
     @Serializable
-    class PbGroupReadedReportReq(
+    internal class PbGroupReadedReportReq(
         @SerialId(1) val groupCode: Long = 0L,
         @SerialId(2) val lastReadSeq: Long = 0L
     ) : ProtoBuf
 
     @Serializable
-    class BusinessWPATmp(
+    internal class BusinessWPATmp(
         @SerialId(1) val toUin: Long = 0L,
         @SerialId(2) val sig: ByteArray = EMPTY_BYTE_ARRAY,
         @SerialId(3) val sigt: ByteArray = EMPTY_BYTE_ARRAY
     ) : ProtoBuf
 
     @Serializable
-    class C2C(
+    internal class C2C(
         @SerialId(1) val toUin: Long = 0L
     ) : ProtoBuf
 
     @Serializable
-    class PbGetGroupMsgReq(
+    internal class PbGetGroupMsgReq(
         @SerialId(1) val groupCode: Long = 0L,
         @SerialId(2) val beginSeq: Long = 0L,
         @SerialId(3) val endSeq: Long = 0L,
@@ -74,20 +74,20 @@ class MsgSvc : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class PbBindUinMsgReadedConfirmReq(
+    internal class PbBindUinMsgReadedConfirmReq(
         @SerialId(1) val syncCookie: ByteArray = EMPTY_BYTE_ARRAY,
         @SerialId(2) val bindUin: Long = 0L
     ) : ProtoBuf
 
     @Serializable
-    class AccostTmp(
+    internal class AccostTmp(
         @SerialId(1) val toUin: Long = 0L,
         @SerialId(2) val sig: ByteArray = EMPTY_BYTE_ARRAY,
         @SerialId(3) val reply: Boolean = false
     ) : ProtoBuf
 
     @Serializable
-    class PbDiscussReadedReportResp(
+    internal class PbDiscussReadedReportResp(
         @SerialId(1) val result: Int = 0,
         @SerialId(2) val errmsg: String = "",
         @SerialId(3) val confUin: Long = 0L,
@@ -96,26 +96,26 @@ class MsgSvc : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class NearByAssistantTmp(
+    internal class NearByAssistantTmp(
         @SerialId(1) val toUin: Long = 0L,
         @SerialId(2) val sig: ByteArray = EMPTY_BYTE_ARRAY,
         @SerialId(3) val reply: Boolean = false
     ) : ProtoBuf
 
     @Serializable
-    data class MsgSendInfo(
+    internal data class MsgSendInfo(
         @SerialId(1) val receiver: Int = 0
     ) : ProtoBuf
 
     @Serializable
-    class PubGroupTmp(
+    internal class PubGroupTmp(
         @SerialId(1) val toUin: Long = 0L,
         @SerialId(2) val sig: ByteArray = EMPTY_BYTE_ARRAY,
         @SerialId(3) val groupUin: Long = 0L
     ) : ProtoBuf
 
     @Serializable
-    class AddressListTmp(
+    internal class AddressListTmp(
         @SerialId(1) val fromPhone: String = "",
         @SerialId(2) val toPhone: String = "",
         @SerialId(3) val toUin: Long = 0L,
@@ -124,31 +124,31 @@ class MsgSvc : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class DisTmp(
+    internal class DisTmp(
         @SerialId(1) val disUin: Long = 0L,
         @SerialId(2) val toUin: Long = 0L
     )
 
     @Serializable
-    class PbMsgWithDrawResp(
+    internal class PbMsgWithDrawResp(
         @SerialId(1) val c2cWithDraw: List<PbC2CMsgWithDrawResp>? = null,
         @SerialId(2) val groupWithDraw: List<PbGroupMsgWithDrawResp>? = null
     ) : ProtoBuf
 
     @Serializable
-    class AuthTmp(
+    internal class AuthTmp(
         @SerialId(1) val toUin: Long = 0L,
         @SerialId(2) val sig: ByteArray = EMPTY_BYTE_ARRAY
     ) : ProtoBuf
 
     @Serializable
-    class PbMsgWithDrawReq(
+    internal class PbMsgWithDrawReq(
         @SerialId(1) val c2cWithDraw: List<PbC2CMsgWithDrawReq>? = null,
         @SerialId(2) val groupWithDraw: List<PbGroupMsgWithDrawReq>? = null
     ) : ProtoBuf
 
     @Serializable
-    class PbGetMsgReq(
+    internal class PbGetMsgReq(
         @SerialId(1) val syncFlag: Int /* enum */ = 0,
         @SerialId(2) val syncCookie: ByteArray = EMPTY_BYTE_ARRAY,
         @SerialId(3) val rambleFlag: Int = 1,
@@ -164,7 +164,7 @@ class MsgSvc : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class PbGetOneDayRoamMsgReq(
+    internal class PbGetOneDayRoamMsgReq(
         @SerialId(1) val peerUin: Long = 0L,
         @SerialId(2) val lastMsgtime: Long = 0L,
         @SerialId(3) val random: Long = 0L,
@@ -172,13 +172,13 @@ class MsgSvc : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class GrpTmp(
+    internal class GrpTmp(
         @SerialId(1) val groupUin: Long = 0L,
         @SerialId(2) val toUin: Long = 0L
     ) : ProtoBuf
 
     @Serializable
-    class PbGetDiscussMsgResp(
+    internal class PbGetDiscussMsgResp(
         @SerialId(1) val result: Int = 0,
         @SerialId(2) val errmsg: String = "",
         @SerialId(3) val discussUin: Long = 0L,
@@ -190,7 +190,7 @@ class MsgSvc : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class CommTmp(
+    internal class CommTmp(
         @SerialId(1) val toUin: Long = 0L,
         @SerialId(2) val c2cType: Int = 0,
         @SerialId(3) val svrType: Int = 0,
@@ -199,7 +199,7 @@ class MsgSvc : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class PbGroupMsgWithDrawResp(
+    internal class PbGroupMsgWithDrawResp(
         @SerialId(1) val result: Int = 0,
         @SerialId(2) val errmsg: String = "",
         @SerialId(3) val subCmd: Int = 0,
@@ -209,7 +209,7 @@ class MsgSvc : ProtoBuf {
         @SerialId(7) val userdef: ByteArray = EMPTY_BYTE_ARRAY
     ) : ProtoBuf {
         @Serializable
-        class MessageResult(
+        internal class MessageResult(
             @SerialId(1) val result: Int = 0,
             @SerialId(2) val msgSeq: Int = 0,
             @SerialId(3) val msgTime: Int = 0,
@@ -220,24 +220,24 @@ class MsgSvc : ProtoBuf {
     }
 
     @Serializable
-    class PbC2CReadedReportResp(
+    internal class PbC2CReadedReportResp(
         @SerialId(1) val result: Int = 0,
         @SerialId(2) val errmsg: String = "",
         @SerialId(3) val syncCookie: ByteArray = EMPTY_BYTE_ARRAY
     ) : ProtoBuf
 
     @Serializable
-    class PbC2CUnReadMsgNumReq : ProtoBuf
+    internal class PbC2CUnReadMsgNumReq : ProtoBuf
 
     @Serializable
-    class PbC2CMsgWithDrawReq(
+    internal class PbC2CMsgWithDrawReq(
         @SerialId(1) val msgInfo: List<MsgInfo>? = null,
         @SerialId(2) val longMessageFlag: Int = 0,
         @SerialId(3) val reserved: ByteArray = EMPTY_BYTE_ARRAY,
         @SerialId(4) val subCmd: Int = 0
     ) : ProtoBuf {
         @Serializable
-        class MsgInfo(
+        internal class MsgInfo(
             @SerialId(1) val fromUin: Long = 0L,
             @SerialId(2) val toUin: Long = 0L,
             @SerialId(3) val msgSeq: Int = 0,
@@ -253,18 +253,18 @@ class MsgSvc : ProtoBuf {
     }
 
     @Serializable
-    class PbDelRoamMsgResp(
+    internal class PbDelRoamMsgResp(
         @SerialId(1) val result: Int = 0,
         @SerialId(2) val errmsg: String = ""
     ) : ProtoBuf
 
     @Serializable
-    class Dis(
+    internal class Dis(
         @SerialId(1) val disUin: Long = 0L
     ) : ProtoBuf
 
     @Serializable
-    class TransSvrInfo(
+    internal class TransSvrInfo(
         @SerialId(1) val subType: Int = 0,
         @SerialId(2) val int32RetCode: Int = 0,
         @SerialId(3) val errMsg: ByteArray = EMPTY_BYTE_ARRAY,
@@ -272,13 +272,13 @@ class MsgSvc : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class PbPullGroupMsgSeqResp(
+    internal class PbPullGroupMsgSeqResp(
         @SerialId(1) val result: Int = 0,
         @SerialId(2) val errmsg: String = "",
         @SerialId(3) val groupInfoResp: List<GroupInfoResp>? = null
     ) : ProtoBuf {
         @Serializable
-        class GroupInfoResp(
+        internal class GroupInfoResp(
             @SerialId(1) val groupCode: Long = 0L,
             @SerialId(2) val memberSeq: Long = 0L,
             @SerialId(3) val groupSeq: Long = 0L
@@ -286,7 +286,7 @@ class MsgSvc : ProtoBuf {
     }
 
     @Serializable
-    class PbSendMsgReq(
+    internal class PbSendMsgReq(
         @SerialId(1) val routingHead: RoutingHead? = null,
         @SerialId(2) val contentHead: MsgComm.ContentHead? = null,
         @SerialId(3) val msgBody: ImMsgBody.MsgBody = ImMsgBody.MsgBody(),
@@ -304,25 +304,25 @@ class MsgSvc : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class TransMsg(
+    internal class TransMsg(
         @SerialId(1) val toUin: Long = 0L,
         @SerialId(2) val c2cCmd: Int = 0
     ) : ProtoBuf
 
     @Serializable
-    class PbDeleteMsgResp(
+    internal class PbDeleteMsgResp(
         @SerialId(1) val result: Int = 0,
         @SerialId(2) val errmsg: String = ""
     ) : ProtoBuf
 
     @Serializable
-    class PbSearchRoamMsgInCloudResp(
+    internal class PbSearchRoamMsgInCloudResp(
         @SerialId(1) val msg: List<MsgComm.Msg>? = null,
         @SerialId(2) val serializeRspbody: ByteArray = EMPTY_BYTE_ARRAY
     ) : ProtoBuf
 
     @Serializable
-    class PbInputNotifyInfo(
+    internal class PbInputNotifyInfo(
         @SerialId(1) val toUin: Long = 0L,
         @SerialId(2) val ime: Int = 0,
         @SerialId(3) val notifyFlag: Int = 0,
@@ -331,7 +331,7 @@ class MsgSvc : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class PbUnReadMsgSeqResp(
+    internal class PbUnReadMsgSeqResp(
         @SerialId(1) val c2cUnreadInfo: PbC2CUnReadMsgNumResp? = null,
         @SerialId(2) val binduinUnreadInfo: List<PbBindUinUnReadMsgNumResp>? = null,
         @SerialId(3) val groupUnreadInfo: PbPullGroupMsgSeqResp? = null,
@@ -340,11 +340,11 @@ class MsgSvc : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class PbDeleteMsgReq(
+    internal class PbDeleteMsgReq(
         @SerialId(1) val msgItems: List<MsgItem>? = null
     ) : ProtoBuf {
         @Serializable
-        class MsgItem(
+        internal class MsgItem(
             @SerialId(1) val fromUin: Long = 0L,
             @SerialId(2) val toUin: Long = 0L,
             @SerialId(3) val msgType: Int = 0,
@@ -355,7 +355,7 @@ class MsgSvc : ProtoBuf {
     }
 
     @Serializable
-    class MultiMsgAssist(
+    internal class MultiMsgAssist(
         @SerialId(1) val repeatedRouting: List<RoutingHead>? = null,
         @SerialId(2) val msgUse: Int /* enum */ = 1,
         @SerialId(3) val tempId: Long = 0L,
@@ -367,7 +367,7 @@ class MsgSvc : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class PbMsgReadedReportReq(
+    internal class PbMsgReadedReportReq(
         @SerialId(1) val grpReadReport: List<PbGroupReadedReportReq>? = null,
         @SerialId(2) val disReadReport: List<PbDiscussReadedReportReq>? = null,
         @SerialId(3) val c2cReadReport: PbC2CReadedReportReq? = null,
@@ -375,7 +375,7 @@ class MsgSvc : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class PbGetOneDayRoamMsgResp(
+    internal class PbGetOneDayRoamMsgResp(
         @SerialId(1) val result: Int = 0,
         @SerialId(2) val errmsg: String = "",
         @SerialId(3) val peerUin: Long = 0L,
@@ -386,7 +386,7 @@ class MsgSvc : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class PbBindUinGetMsgReq(
+    internal class PbBindUinGetMsgReq(
         @SerialId(1) val bindUin: Long = 0L,
         @SerialId(2) val bindUinSig: ByteArray = EMPTY_BYTE_ARRAY,
         @SerialId(3) val syncFlag: Int /* enum */ = 0,
@@ -394,20 +394,20 @@ class MsgSvc : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class NearByDatingTmp(
+    internal class NearByDatingTmp(
         @SerialId(1) val toUin: Long = 0L,
         @SerialId(2) val sig: ByteArray = EMPTY_BYTE_ARRAY,
         @SerialId(3) val reply: Boolean = false
     ) : ProtoBuf
 
     @Serializable
-    class BsnsTmp(
+    internal class BsnsTmp(
         @SerialId(1) val toUin: Long = 0L,
         @SerialId(2) val sig: ByteArray = EMPTY_BYTE_ARRAY
     ) : ProtoBuf
 
     @Serializable
-    class RoutingHead(
+    internal class RoutingHead(
         @SerialId(1) val c2c: C2C? = null,
         @SerialId(2) val grp: Grp? = null,
         @SerialId(3) val grpTmp: GrpTmp? = null,
@@ -433,7 +433,7 @@ class MsgSvc : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class TransResp(
+    internal class TransResp(
         @SerialId(1) val result: Int = 0,
         @SerialId(2) val errmsg: String = "",
         @SerialId(3) val respTag: Int = 0,
@@ -441,7 +441,7 @@ class MsgSvc : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    data class PbSendMsgResp(
+    internal data class PbSendMsgResp(
         @SerialId(1) val result: Int = 0,
         @SerialId(2) val errmsg: String = "",
         @SerialId(3) val sendTime: Int = 0,
@@ -454,7 +454,7 @@ class MsgSvc : ProtoBuf {
     ) : ProtoBuf, Packet
 
     @Serializable
-    class PbBindUinUnReadMsgNumResp(
+    internal class PbBindUinUnReadMsgNumResp(
         @SerialId(1) val result: Int = 0,
         @SerialId(2) val errmsg: String = "",
         @SerialId(3) val bindUin: Long = 0L,
@@ -462,7 +462,7 @@ class MsgSvc : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class PbGetDiscussMsgReq(
+    internal class PbGetDiscussMsgReq(
         @SerialId(1) val discussUin: Long = 0L,
         @SerialId(2) val endSeq: Long = 0L,
         @SerialId(3) val beginSeq: Long = 0L,
@@ -473,27 +473,27 @@ class MsgSvc : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class PbC2CMsgWithDrawResp(
+    internal class PbC2CMsgWithDrawResp(
         @SerialId(1) val result: Int = 0,
         @SerialId(2) val errmsg: String = "",
         @SerialId(3) val msgStatus: List<MsgStatus>? = null,
         @SerialId(4) val subCmd: Int = 0
     ) : ProtoBuf {
         @Serializable
-        class MsgStatus(
+        internal class MsgStatus(
             @SerialId(1) val msgInfo: PbC2CMsgWithDrawReq.MsgInfo? = null,
             @SerialId(2) val status: Int = 0
         ) : ProtoBuf
     }
 
     @Serializable
-    class SecretFileHead(
+    internal class SecretFileHead(
         @SerialId(1) val secretFileMsg: SubMsgType0xc1.MsgBody? = null,
         @SerialId(2) val secretFileStatus: SubMsgType0x1a.MsgBody? = null
     )
 
     @Serializable
-    class PbGetRoamMsgReq(
+    internal class PbGetRoamMsgReq(
         @SerialId(1) val peerUin: Long = 0L,
         @SerialId(2) val lastMsgtime: Long = 0L,
         @SerialId(3) val random: Long = 0L,
@@ -507,13 +507,13 @@ class MsgSvc : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class TransCmd(
+    internal class TransCmd(
         @SerialId(1) val toUin: Long = 0L,
         @SerialId(2) val msgType: Int = 0
     ) : ProtoBuf
 
     @Serializable
-    class PbMsgReadedReportResp(
+    internal class PbMsgReadedReportResp(
         @SerialId(1) val grpReadReport: List<PbGroupReadedReportResp>? = null,
         @SerialId(2) val disReadReport: List<PbDiscussReadedReportResp>? = null,
         @SerialId(3) val c2cReadReport: PbC2CReadedReportResp? = null,
@@ -521,14 +521,14 @@ class MsgSvc : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class PbThirdQQUnReadMsgNumResp(
+    internal class PbThirdQQUnReadMsgNumResp(
         @SerialId(1) val result: Int = 0,
         @SerialId(2) val errmsg: String = "",
         @SerialId(3) val thirdqqRespInfo: List<ThirdQQRespInfo>? = null,
         @SerialId(4) val interval: Int = 0
     ) : ProtoBuf {
         @Serializable
-        class ThirdQQRespInfo(
+        internal class ThirdQQRespInfo(
             @SerialId(1) val thirdUin: Long = 0L,
             @SerialId(2) val thirdUinCookie: ByteArray = EMPTY_BYTE_ARRAY,
             @SerialId(3) val msgNum: Int = 0,
@@ -540,31 +540,31 @@ class MsgSvc : ProtoBuf {
     }
 
     @Serializable
-    class RichStatusTmp(
+    internal class RichStatusTmp(
         @SerialId(1) val toUin: Long = 0L,
         @SerialId(2) val sig: ByteArray = EMPTY_BYTE_ARRAY
     ) : ProtoBuf
 
     @Serializable
-    class QQQueryBusinessTmp(
+    internal class QQQueryBusinessTmp(
         @SerialId(1) val toUin: Long = 0L,
         @SerialId(2) val sig: ByteArray = EMPTY_BYTE_ARRAY
     ) : ProtoBuf
 
     @Serializable
-    class PbDelRoamMsgReq(
+    internal class PbDelRoamMsgReq(
         @SerialId(1) val c2cMsg: C2CMsg? = null,
         @SerialId(2) val grpMsg: GrpMsg? = null,
         @SerialId(3) val disMsg: DisMsg? = null
     ) : ProtoBuf {
         @Serializable
-        class GrpMsg(
+        internal class GrpMsg(
             @SerialId(1) val groupCode: Long = 0L,
             @SerialId(2) val msgSeq: Long = 0L
         ) : ProtoBuf
 
         @Serializable
-        class C2CMsg(
+        internal class C2CMsg(
             @SerialId(1) val fromUin: Long = 0L,
             @SerialId(2) val peerUin: Long = 0L,
             @SerialId(3) val msgTime: Int = 0,
@@ -573,14 +573,14 @@ class MsgSvc : ProtoBuf {
         ) : ProtoBuf
 
         @Serializable
-        class DisMsg(
+        internal class DisMsg(
             @SerialId(1) val discussUin: Long = 0L,
             @SerialId(2) val msgSeq: Long = 0L
         ) : ProtoBuf
     }
 
     @Serializable
-    class PbUnReadMsgSeqReq(
+    internal class PbUnReadMsgSeqReq(
         @SerialId(1) val c2cUnreadInfo: PbC2CUnReadMsgNumReq? = null,
         @SerialId(2) val binduinUnreadInfo: List<PbBindUinUnReadMsgNumReq>? = null,
         @SerialId(3) val groupUnreadInfo: PbPullGroupMsgSeqReq? = null,
@@ -589,13 +589,13 @@ class MsgSvc : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class PbPullDiscussMsgSeqResp(
+    internal class PbPullDiscussMsgSeqResp(
         @SerialId(1) val result: Int = 0,
         @SerialId(2) val errmsg: String = "",
         @SerialId(3) val discussInfoResp: List<DiscussInfoResp>? = null
     ) : ProtoBuf {
         @Serializable
-        class DiscussInfoResp(
+        internal class DiscussInfoResp(
             @SerialId(1) val confUin: Long = 0L,
             @SerialId(2) val memberSeq: Long = 0L,
             @SerialId(3) val confSeq: Long = 0L
@@ -603,30 +603,30 @@ class MsgSvc : ProtoBuf {
     }
 
     @Serializable
-    class PbPullDiscussMsgSeqReq(
+    internal class PbPullDiscussMsgSeqReq(
         @SerialId(1) val discussInfoReq: List<DiscussInfoReq>? = null
     ) : ProtoBuf {
         @Serializable
-        class DiscussInfoReq(
+        internal class DiscussInfoReq(
             @SerialId(1) val confUin: Long = 0L,
             @SerialId(2) val lastSeq: Long = 0L
         ) : ProtoBuf
     }
 
     @Serializable
-    class WPATmp(
+    internal class WPATmp(
         @SerialId(1) val toUin: Long = 0L,
         @SerialId(2) val sig: ByteArray = EMPTY_BYTE_ARRAY
     ) : ProtoBuf
 
     @Serializable
-    class PublicPlat(
+    internal class PublicPlat(
         @SerialId(1) val toUin: Long = 0L,
         @SerialId(2) val sig: ByteArray = EMPTY_BYTE_ARRAY
     ) : ProtoBuf
 
     @Serializable
-    class PbBindUinMsgReadedConfirmResp(
+    internal class PbBindUinMsgReadedConfirmResp(
         @SerialId(1) val result: Int = 0,
         @SerialId(2) val errmsg: String = "",
         @SerialId(3) val syncCookie: ByteArray = EMPTY_BYTE_ARRAY,
@@ -634,7 +634,7 @@ class MsgSvc : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class PbGetRoamMsgResp(
+    internal class PbGetRoamMsgResp(
         @SerialId(1) val result: Int = 0,
         @SerialId(2) val errmsg: String = "",
         @SerialId(3) val peerUin: Long = 0L,
@@ -645,18 +645,18 @@ class MsgSvc : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class PbDiscussReadedReportReq(
+    internal class PbDiscussReadedReportReq(
         @SerialId(1) val confUin: Long = 0L,
         @SerialId(2) val lastReadSeq: Long = 0L
     ) : ProtoBuf
 
     @Serializable
-    class PbC2CReadedReportReq(
+    internal class PbC2CReadedReportReq(
         @SerialId(1) val syncCookie: ByteArray = EMPTY_BYTE_ARRAY,
         @SerialId(2) val pairInfo: List<UinPairReadInfo>? = null
     ) : ProtoBuf {
         @Serializable
-        class UinPairReadInfo(
+        internal class UinPairReadInfo(
             @SerialId(1) val peerUin: Long = 0L,
             @SerialId(2) val lastReadTime: Int = 0,
             @SerialId(3) val crmSig: ByteArray = EMPTY_BYTE_ARRAY
@@ -664,7 +664,7 @@ class MsgSvc : ProtoBuf {
     }
 
     @Serializable
-    class Trans0x211(
+    internal class Trans0x211(
         @SerialId(1) val toUin: Long = 0L,
         @SerialId(2) val ccCmd: Int = 0,
         @SerialId(3) val instCtrl: ImMsgHead.InstCtrl? = null,
@@ -674,43 +674,43 @@ class MsgSvc : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class PbSearchRoamMsgInCloudReq(
+    internal class PbSearchRoamMsgInCloudReq(
         @SerialId(1) val serializeReqbody: ByteArray = EMPTY_BYTE_ARRAY
     ) : ProtoBuf
 
     @Serializable
-    class PbBindUinUnReadMsgNumReq(
+    internal class PbBindUinUnReadMsgNumReq(
         @SerialId(1) val bindUin: Long = 0L,
         @SerialId(2) val syncCookie: ByteArray = EMPTY_BYTE_ARRAY
     ) : ProtoBuf
 
     @Serializable
-    class PbC2CUnReadMsgNumResp(
+    internal class PbC2CUnReadMsgNumResp(
         @SerialId(1) val result: Int = 0,
         @SerialId(2) val errmsg: String = "",
         @SerialId(3) val msgNum: Int = 0
     ) : ProtoBuf
 
     @Serializable
-    class PbPullGroupMsgSeqReq(
+    internal class PbPullGroupMsgSeqReq(
         @SerialId(1) val groupInfoReq: List<GroupInfoReq>? = null
     ) : ProtoBuf {
         @Serializable
-        class GroupInfoReq(
+        internal class GroupInfoReq(
             @SerialId(1) val groupCode: Long = 0L,
             @SerialId(2) val lastSeq: Long = 0L
         ) : ProtoBuf
     }
 
     @Serializable
-    class TransReq(
+    internal class TransReq(
         @SerialId(1) val command: Int = 0,
         @SerialId(2) val reqTag: Int = 0,
         @SerialId(3) val reqBuff: ByteArray = EMPTY_BYTE_ARRAY
     ) : ProtoBuf
 
     @Serializable
-    class PbGroupReadedReportResp(
+    internal class PbGroupReadedReportResp(
         @SerialId(1) val result: Int = 0,
         @SerialId(2) val errmsg: String = "",
         @SerialId(3) val groupCode: Long = 0L,
@@ -719,7 +719,7 @@ class MsgSvc : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class PbGetGroupMsgResp(
+    internal class PbGetGroupMsgResp(
         @SerialId(1) val result: Int = 0,
         @SerialId(2) val errmsg: String = "",
         @SerialId(3) val groupCode: Long = 0L,
@@ -729,12 +729,12 @@ class MsgSvc : ProtoBuf {
     ) : ProtoBuf
 
     @Serializable
-    class PbThirdQQUnReadMsgNumReq(
+    internal class PbThirdQQUnReadMsgNumReq(
         @SerialId(1) val thirdqqReqInfo: List<ThirdQQReqInfo>? = null,
         @SerialId(2) val source: Int = 0
     ) : ProtoBuf {
         @Serializable
-        class ThirdQQReqInfo(
+        internal class ThirdQQReqInfo(
             @SerialId(1) val thirdUin: Long = 0L,
             @SerialId(2) val thirdUinSig: ByteArray = EMPTY_BYTE_ARRAY,
             @SerialId(3) val thirdUinCookie: ByteArray = EMPTY_BYTE_ARRAY
@@ -743,15 +743,15 @@ class MsgSvc : ProtoBuf {
 }
 
 @Serializable
-class MsgCtrl {
+internal class MsgCtrl {
     @Serializable
-    class MsgCtrl(
+    internal class MsgCtrl(
         @SerialId(1) val msgFlag: Int = 0,
         @SerialId(2) val resvResvInfo: ResvResvInfo? = null
     ) : ProtoBuf
 
     @Serializable
-    class ResvResvInfo(
+    internal class ResvResvInfo(
         @SerialId(1) val flag: Int = 0,
         @SerialId(2) val reserv1: ByteArray = EMPTY_BYTE_ARRAY,
         @SerialId(3) val reserv2: Long = 0L,
@@ -764,9 +764,9 @@ class MsgCtrl {
 }
 
 @Serializable
-class SubMsgType0xc1 {
+internal class SubMsgType0xc1 {
     @Serializable
-    class NotOnlineImage(
+    internal class NotOnlineImage(
         @SerialId(1) val filePath: ByteArray = EMPTY_BYTE_ARRAY,
         @SerialId(2) val fileLen: Int = 0,
         @SerialId(3) val downloadPath: ByteArray = EMPTY_BYTE_ARRAY,
@@ -783,7 +783,7 @@ class SubMsgType0xc1 {
     ) : ProtoBuf
 
     @Serializable
-    class MsgBody(
+    internal class MsgBody(
         @SerialId(1) val fileKey: ByteArray = EMPTY_BYTE_ARRAY,
         @SerialId(2) val fromUin: Long = 0L,
         @SerialId(3) val toUin: Long = 0L,
@@ -800,9 +800,9 @@ class SubMsgType0xc1 {
 }
 
 @Serializable
-class SubMsgType0x1a {
+internal class SubMsgType0x1a {
     @Serializable
-    class MsgBody(
+    internal class MsgBody(
         @SerialId(1) val fileKey: ByteArray = EMPTY_BYTE_ARRAY,
         @SerialId(2) val fromUin_int32: Int = 0,
         @SerialId(3) val toUin_int32: Int = 0,
diff --git a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/data/proto/OnlinePush.kt b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/data/proto/OnlinePush.kt
index 5eec12883..819b6cd77 100644
--- a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/data/proto/OnlinePush.kt
+++ b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/data/proto/OnlinePush.kt
@@ -6,9 +6,9 @@ import net.mamoe.mirai.qqandroid.io.ProtoBuf
 import net.mamoe.mirai.qqandroid.network.protocol.packet.EMPTY_BYTE_ARRAY
 
 @Serializable
-class MsgOnlinePush {
+internal class MsgOnlinePush {
     @Serializable
-    class PbPushMsg(
+    internal class PbPushMsg(
         @SerialId(1) val msg: MsgComm.Msg,
         @SerialId(2) val svrip: Int = 0,
         @SerialId(3) val pushToken: ByteArray = EMPTY_BYTE_ARRAY,