<@U0BUH9FRD> since your using `1.0.0-M3`: ``` conf...

# spek

[raniejade]

@sdeleuze since your using `1.0.0-M3`:

configure<JUnitPlatformExtension> {
    filters {
        engines { … }
    }
}

fun JUnitPlatformExtension.filters(setup: FiltersExtension.() -> Unit) {
    when (this) {
        is ExtensionAware -> extensions.getByType(FiltersExtension::class.java).setup()
        else -> throw Exception("${this::class} must be an instance of ExtensionAware")
    }
}

fun FiltersExtension.engines(setup: EnginesExtension.() -> Unit) {
    when (this) {
        is ExtensionAware -> extensions.getByType(EnginesExtension::class.java).setup()
        else -> throw Exception("${this::class} must be an instance of ExtensionAware")
    }
}