Medium article - KMM

Results.kt

//void example
sealed class ReservationResult<out T : Any> : ManagerResult<T, Throwable>() {
    object Success : ReservationResult<Unit>()
    data class Error(override val exception: Throwable) : ReservationResult<Nothing>()
}

//value example
sealed class ReservationListResult<out T : Any> : ManagerResult<T, Throwable>() {
    data class Success(override val data: List<Event>) : ReservationListResult<List<Event>>()
    data class Error(override val exception: Throwable) : ReservationListResult<Nothing>()
}