class LambdaSubscriber extends AtomicReference<Subscription> implements FlowableSubscriber<T>, Subscription, Disposable, LambdaConsumerIntrospection {

    @Override
    public boolean hasCustomOnError() {
        return onError != Functions.ON_ERROR_MISSING;
    }

    public  LambdaSubscriber(Consumer<? super T> onNext, Consumer<? super Throwable> onError,
            Action onComplete,
            Consumer<? super Subscription> onSubscribe);

}