async

fun <T> Lifetime.async(context: CoroutineContext = EmptyCoroutineContext, start: CoroutineStart = CoroutineStart.DEFAULT, block: suspend CoroutineScope.() -> T): Deferred<T>
fun <T> Lifetime.async(scheduler: IScheduler, start: CoroutineStart = CoroutineStart.DEFAULT, block: suspend CoroutineScope.() -> T): Deferred<T>