abstract class UseCase actual layer placement?

[mochadwi]

abstract class UseCase<out Type, in Params> where Type : Any {

    abstract suspend fun run(params: Params): Either<Failure, Type>

    operator fun invoke(params: Params, onResult: (Either<Failure, Type>) -> Unit = {}) {
        val job = async(CommonPool) { run(params) }
        launch(UI) { onResult(job.await()) }
    }

    class None
}

I've somewhat confused with this. Does this abstract class use case violate the domain layer? Usecase should be dumb and doesn't know the coroutines?

cmiiw @android10