eZ\Bundle\EzPublishIOBundle\DependencyInjection\ConfigurationFactory\Flysystem::configureHandler PHP Метод

    public function configureHandler(ServiceDefinition $definition, array $config)
    {
        $filesystemId = $this->createFilesystem($this->container, $config['name'], $config['adapter']);
        $definition->replaceArgument(0, new Reference($filesystemId));
    }