can you do lenses for data classes from 3rd part sources ? since i cannot put a annotation on them or do i need to copy them into a new class that then has lenses ?

Have you tried this:

@Lenses
typealias TMP = MyExternalDataClass

i will try that

Let me know if it works (another big win for kotlin if it does!)

apparently not (i am not the main person working on this, but my teammate has not been on this slack before and the invite procedure takes time)

@Nikky, thanks for bringing this up. I tried with the typealias, but it does not work.