Sulu\Bundle\HttpCacheBundle\DependencyInjection\Configuration::getConfigTreeBuilder PHP Method

    public function getConfigTreeBuilder()
    {
        $treeBuilder = new TreeBuilder();
        $root = $treeBuilder->root('sulu_http_cache');
        $root->children()->arrayNode('handlers')->addDefaultsIfNotSet()->info('Configuration for structure cache handlers')->children()->arrayNode('public')->canBeDisabled()->addDefaultsIfNotSet()->children()->integerNode('max_age')->defaultValue(240)->end()->integerNode('shared_max_age')->defaultValue(240)->end()->booleanNode('use_page_ttl')->defaultValue(true)->info('Use the dynamic pages cache lifetime for reverse proxy server')->end()->end()->end()->arrayNode('url')->canBeDisabled()->end()->arrayNode('tags')->canBeEnabled()->end()->arrayNode('debug')->canBeDisabled()->end()->end()->end()->arrayNode('proxy_client')->addDefaultsIfNotSet()->children()->arrayNode('symfony')->canBeEnabled()->end()->arrayNode('varnish')->canBeEnabled()->addDefaultsIfNotSet()->fixXmlConfig('server')->children()->arrayNode('servers')->beforeNormalization()->ifString()->then(function ($v) {
            return preg_split('/\\s*,\\s*/', $v);
        })->end()->useAttributeAsKey('name')->isRequired()->requiresAtLeastOneElement()->prototype('scalar')->end()->info('Addresses of the hosts Varnish is running on. May be hostname or ip, and with :port if not the default port 80.')->end()->scalarNode('base_url')->defaultNull()->info('Default host name and optional path for path based invalidation.')->end()->end()->end()->end()->end();
        return $treeBuilder;
    }