mapDeserialization

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

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