StackedSessionHandlerPass example

$container->addCompilerPass(new DevelopmentSettingsPass());

    $container->addCompilerPass(new ProxyServicesPass());

    $container->addCompilerPass(new BackendCompilerPass());

    $container->addCompilerPass(new CorsCompilerPass());

    $container->addCompilerPass(new StackedKernelPass());

    $container->addCompilerPass(new StackedSessionHandlerPass());

    $container->addCompilerPass(new MainContentRenderersPass());

    // Collect tagged handler services as method calls on consumer services.     $container->addCompilerPass(new TaggedHandlersPass());
    $container->addCompilerPass(new RegisterStreamWrappersPass());
    $container->addCompilerPass(new TwigExtensionPass());

    // Add a compiler pass for registering event subscribers.     $container->addCompilerPass(new RegisterEventSubscribersPass(), PassConfig::TYPE_AFTER_REMOVING);