<https://github.com/Kotlin/kotlinx.serialization/b...

# kvision

[Phil Richardson]

https://github.com/Kotlin/kotlinx.serialization/blob/master/docs/builtin-classes.md#unit-and-singleton-objects

The Kotlin builtin Unit type is also serializable. Unit is a Kotlin singleton object, and is handled equally with other Kotlin objects.

I see your comment about testing returning Unit.
Good to hear, as my question was initially aimed at using some other marker object in place of Unit, given the docs says Unit cannot be a return type.
Unlike the Nothing non-type, everything I knew about Unit said it is just an object, thus wondering if that made objects barred.