@yigit is it possible to create custom room types like rxjava3's flowables/observable/singe, paging's data source etc.. I want room to return a type of my sealed class result, just like you can do with retrofit?

Consider to serialize/deserialize the sealed class. kotlinx.serialization can esiliy serialize/deserialize a sealed class.

This wasn't my question, sorry

The only way to add a custom type to Room is TypeConverter. In case of a sealed class you can create the TypeConverter for your class and use kotlinx serialization inside (because it supports a sealed class serialization out-of-box).

But he doesnt want a new type

That's what I'm doing currently