Elcodi\Admin\PluginBundle\DependencyInjection\Configuration::setupTree PHP Method

    protected function setupTree(ArrayNodeDefinition $rootNode)
    {
        $rootNode->addDefaultsIfNotSet()->children()->arrayNode('menu')->addDefaultsIfNotSet()->children()->booleanNode('add_categories')->defaultFalse()->end()->booleanNode('add_plugins')->defaultTrue()->end()->end()->end()->end();
    }