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kotlinlang

Any chance that `kotlinx.serialization` 's `serializeDynamic` and `deserializeDynamic` could eventually integrate with Kotlin/JS's `external interface`s? Maybe with some limits placed on custom serializers?

It would be extremely slick if we could

• annotate complex nested `data class`es as `@Serializable` 
• have kotlinx.serialization generate an `external interface` for us that aligns to that class
• allow us to expose that `external interface` to JS consumers in a typesafe way (via `.d.ts` definitions)
• automatically map the external interface to a corresponding data class 
(The main reason I'm not using external interfaces everywhere is because this is a multiplatform project, and data classes are needed for jvm/android/ios)