data class CreateUserRequest(
    @NotBlank val username: String,
    @Email val email: String,
    @Min(18) val age: Int,
    @Sensitive(mask = "[REDACTED]") @MinLength(8) val password: String
)

val result = CreateUserRequestValidator.validate(request)

class RandomColorViewModel {
    private val _color = MutableStateFlow(UIColor.gray)
    val color: StateFlow<UIColor> = _color.asStateFlow()

    fun randomize() {
        _color.value = UIColor(
            red = Random.nextDouble(),
            green = Random.nextDouble(),
            blue = Random.nextDouble(),
            alpha = 1.0
        )
    }
}

struct ColorScreen: View {
    let viewModel: RandomColorViewModel
    @State private var color: Color = .gray

    var body: some View {
        ColorSample(color: color, onRandomize: viewModel.randomize)
            .collect(flow: viewModel.color, into: $color) { Color($0) }
    }
}

struct ColorScreen: View {
    let viewModel: RandomColorViewModel

    var body: some View {
        Observing(viewModel.color, animation: .default) { color in
            ColorSample(
                color: Color(color),
                onRandomize: viewModel.randomize
            )
        }
    }
}

//build.gradle.kts
skie {
    features {
        enableSwiftUIObservingPreview = true
    }
}