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kotlinlang

Hello guys. I’m looking for a workaround for an issue <https://github.com/Kotlin/kotlinx.serialization/issues/195>
Lets say I have a class
```@Serializable
data class MyUser(
    val fullName: String,
    val middleName: String? = null,
    val age: Int = 42
)```
I want to achieve the result when following object `MyUser("John Doe")` will lead to json:
```{"fullName": "John Doe", age=42}```
From what I understand `Json(encodeDefaults = false)` will disable adding default age. Please give an advice

You can use triple backticks ``` to format the code in a code block.

I think you need to annotate with `@Transient` or `@Optional` iinm cmiiw <@U65U838TF>

Out-of-the-box you either have all defaults or none of them. To customize it, you’ll have to write your own serializer for this class or your own JSON format that whould treat nulls in some special way.