Asynchronously wait for the condition variable to be notified and return the result or throw the exception received via notification
final public function waitForNotificationAsync( Awaitable<void> $notifiers, ): Awaitable<T>;
The caller must provide an Awaitable $notifiers (which must be a WaitHandle) that must not finish before the notification is received. This means $notifiers must represent work that is guaranteed to eventually trigger the notification. As long as the notification is issued only once, asynchronous execution unrelated to $notifiers is allowed to trigger the notification.