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kotlinlang

can i not serialize `object`s ? it seems to not work in Polymorphic
code in :thread-please:

```
@Polymorphic
@Serializable(PolymorphicSerializer::class)
sealed class LoginResponse {
    interface Failure
    
    @Serializable
    data class Success(
       val message: String
    ) : LoginResponse()
    
    @Serializable
    object IncorrectPassword: Failure, LoginResponse()

    companion object {
        fun install(builder: SerializersModuleBuilder) {
            builder.polymorphic&lt;LoginResponse&gt; {
                Success::class with Success.serializer()
                IncorrectPassword::class with IncorrectPassword.serializer()
            }
        }
    }
}
```

```
@Serializable annotation is ignored because it is impossible to serialize automatically interfaces or enums. Provide serializer manually via e.g. companion object
```

i am now trying..
```
    @Serializer(forClass = IncorrectPassword::class)
    object IncorrectPassword: LoginResponse(), Failure {
        override val descriptor: SerialDescriptor = SerialClassDescImpl("IncorrectPassword")
        override fun deserialize(decoder: Decoder): IncorrectPassword {
            return IncorrectPassword
        }
        override fun serialize(encoder: Encoder, obj: IncorrectPassword) {
            val composite = encoder.beginStructure(descriptor)
            composite.endStructure(descriptor)
        }
    }
```

this seems to work.. so i guess i can make some sort of generic serializer for this

I think that depends on kotlin reflect to work?