``` @Suppress("UNCHECKED_CAST", "unused") ...

# minutest

[dmcg]

@Suppress("UNCHECKED_CAST", "unused")
    private fun KType.constructorAsFeatureFactory(): (PF.() -> F) {
        val kClass = (this.classifier as? KClass<*>) ?: raiseNoFixtureError("the type was not a one I recognise")
        val constructor = kClass.constructors.firstOrNull()
        return when {
            kClass.objectInstance != null -> fun (PF).() : F { return kClass.objectInstance as F }
            constructor == null -> raiseNoFixtureError("there were no constructors of the fixture type")
            constructor.parameters.isNotEmpty() ->  raiseNoFixtureError("there was no default constructor of the fixture type")
            else -> fun (PF).() : F { return constructor.call() as F }
        }
    }