CommonResultViewModelExample.kt

class MagicCardSearchViewModel(
    private val getCardUseCase: GetMagicCardUseCase
): ViewModel() {

    fun onCardSearchClick() = viewModelScope.launch {
        when (val result = getCardUseCase(cardName)) {
            is Success -> // happy path 🎉
            is Error -> {
                result.error // 🤔
            }
        }
    }
}