*/
    <T> void registerArgumentSerializer(Class<T> type, Serializer<T> serializer);

    /**
     * Use a simpler classloader structure where everything is in the application classloader.
     */
    void useApplicationClassloaderOnly();

            builder.applicationClasspath(classPathRegistry.getClassPath("MINIMUM_WORKER_RUNTIME").getAsFiles());
            builder.useApplicationClassloaderOnly();
            builder.applicationClasspath(toFiles(flatClassLoaderStructure.getSpec()));
        } else {
            builder.applicationClasspath(classPathRegistry.getClassPath("CORE_WORKER_RUNTIME").getAsFiles());

    @Override
    public WorkerProcessSettings sharedPackages(String... packages) {
        workerProcessBuilder.sharedPackages(packages);
        return this;
    }

    @Override
    public void useApplicationClassloaderOnly() {
        workerProcessBuilder.setImplementationClasspath(Collections.<URL>emptyList());
    }

    @Override
    public MultiRequestClient<IN, OUT> build() {