appComponentProviders

class MetroApp : Application(), MetroApplication {
  /** Holder reference for the app graph for [MetroAppComponentFactory]. */
  internal lateinit var appGraph: AppGraph

  override fun onCreate() {
    super.onCreate()
    appGraph = createGraph<AppGraph>()
  }

  override val appComponentProviders: MetroAppComponentProviders
    get() = appGraph
}

@DependencyGraph
interface AppGraph : MetroAppComponentProviders {
  // ...
}