Straightforward toString

mirai-core/src/commonMain/kotlin/net.mamoe.mirai/network/protocol/tim/packet/event/Unknown.kt

@@ -14,7 +14,9 @@ import net.mamoe.mirai.utils.io.toUHexString
 data class UnknownEventPacket(
     val id: UShort,
     val body: ByteReadPacket
-) : EventPacket
+) : EventPacket {
+    override fun toString(): String = "UnknownEventPacket(id=${id.toUHexString()})"
+}
 
 //TODO This class should be declared with `inline`, but a CompilationException will be thrown
 class UnknownEventParserAndHandler(override val id: UShort) : EventParserAndHandler<UnknownEventPacket> {

mirai-core/src/commonMain/kotlin/net.mamoe.mirai/network/protocol/tim/packet/login/PasswordSubmission.kt

@@ -255,6 +255,7 @@ object SubmitPasswordPacket : PacketFactory<SubmitPasswordPacket.LoginResponse,
 inline class SessionResponseDecryptionKey(private val delegate: IoBuffer) : Decrypter {
     override fun decrypt(packet: ByteReadPacket): ByteReadPacket = packet.decryptBy(delegate)
 
+    override fun toString(): String = "SessionResponseDecryptionKey"
     companion object Type : DecrypterType<SessionResponseDecryptionKey>
 }