like for:
```sealed interface SomeUseCaseResult
o...
# striktd
dave08
10/05/2021, 2:01 PMlike for:
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sealed interface SomeUseCaseResult
object SomeError : SomeUseCaseResult
data class Success(val result: String) : SomeUseCaseResult
// could be tested like:
expectThat(result).getFromA(Success::result).isEqualsTo("foo")