ABTestVariation

enum class ABTestVariation(val navGraphRes: Int) {
    BASELINE(R.navigation.baseline_navigation),
    VARIATION1(R.navigation.variant1_navigation),
    VARIATION2(R.navigation.variant2_navigation),
}

private val abTestVariation: ABTestVariation by lazy {
    intent?.getSerializableExtra(KEY) as? ABTestVariation ?: ABTestVariation.BASELINE
}

override fun onCreate(savedInstanceState: Bundle?) {
    ...   
    setupNavigation(abTestVariation.navGraphRes)
    ...
}