mapDeserialization

inline fun <I : Any, O> DeserializationStrategy<I>.mapDeserialization(noinline deserialize: (I) -> O): MapperDeserializationStrategy<I, O>(source)
inline fun <I : Any, O> KClass<I>.mapDeserialization(    serializer: DeserializationStrategy<I> = serializer(),     noinline deserialize: (I) -> O): MapperDeserializationStrategy<I, O>(source)

Will create MapperDeserializationStrategy to allow you to map I to O using deserialize lambda during deserialization process