class MaybeCallbackObserver extends AtomicReference<Disposable> implements MaybeObserver<T>, Disposable, LambdaConsumerIntrospection {

    @Override
    public void dispose() {
        DisposableHelper.dispose(this);
    }

    public  MaybeCallbackObserver(Consumer<? super T> onSuccess, Consumer<? super Throwable> onError,
            Action onComplete);

}