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kotlinlang

can kotlinx.serialization be convinced to allow for some non-exact class matches when polymorphic?
I'd like to use it on various data structures containing `CharSequence`. regardless of the exact type, I want to handle them all the same way - serialize their `.toString()`, and a subset of their spans if `Spannable` (Android interface), ignoring everything else. but it seems like polymorphic(CharSequence::class) is forcing me to write a separate serializer for every possible concrete class

to answer my own question, I've ended up writing my own serializer and registering it with `@file:UseSerializers` on top of all the classes containing CharSequence. annoyingly, it doesn't seem possible to affect serialization of fields within classes not under my direct control.