Sonata\BasketBundle\DependencyInjection\Configuration::getConfigTreeBuilder PHP Method

    public function getConfigTreeBuilder()
    {
        $treeBuilder = new TreeBuilder();
        $node = $treeBuilder->root('sonata_basket');
        $node->children()->scalarNode('builder')->defaultValue('sonata.basket.builder.standard')->cannotBeEmpty()->end()->scalarNode('factory')->defaultValue('sonata.basket.session.factory')->cannotBeEmpty()->end()->scalarNode('loader')->defaultValue('sonata.basket.loader.standard')->cannotBeEmpty()->end()->end();
        $this->addModelSection($node);
        $this->addFormSection($node);
        return $treeBuilder;
    }