public function process(ContainerBuilder $container)
    {
        $manager = $container->findDefinition(self::MANAGER_ID);

        $serviceIds = $container->findTaggedServiceIds(self::WORKER_RUNNER_TAG);
        foreach ($serviceIds as $serviceId => $tags) {
            $this->addManagerCalls($container, $manager, $serviceId, $tags);
        }
    }