What the idiomatic way of doing this in Kotlin? ``` if (mNotificationManager == null) { ...

# getting-started

[suhas]

What the idiomatic way of doing this in Kotlin?

if (mNotificationManager == null) {
                mNotificationManager = this.getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
 }

[ephemient]

val notificationManager by lazy {
    context.getSystemService<NotificationManager>()
}

androidx.core.content.getSystemService avoids a cast, kotlin.lazy handles init-once