class ParallelFlowable {

    @CheckReturnValue
    @NonNull
    public final ParallelFlowable<T> doOnRequest(@NonNull LongConsumer onRequest) {
        ObjectHelper.requireNonNull(onRequest, "onRequest is null");
        return RxJavaPlugins.onAssembly(new ParallelPeek<T>(this,
                Functions.emptyConsumer(),
                Functions.emptyConsumer(),
                Functions.emptyConsumer(),
                Functions.EMPTY_ACTION,
                Functions.EMPTY_ACTION,
                Functions.emptyConsumer(),
                onRequest,
                Functions.EMPTY_ACTION
                ));
    }

}