AuthBucket\Bundle\OAuth2Bundle\DependencyInjection\Configuration::getConfigTreeBuilder PHP Method

    public function getConfigTreeBuilder()
    {
        $treeBuilder = new TreeBuilder();
        $rootNode = $treeBuilder->root('oauth2');
        $rootNode->children()->scalarNode('driver')->defaultNull()->end()->scalarNode('user_provider')->defaultNull()->end()->arrayNode('model')->prototype('scalar')->end()->end()->arrayNode('response_handler')->prototype('scalar')->end()->end()->arrayNode('grant_handler')->prototype('scalar')->end()->end()->arrayNode('token_handler')->prototype('scalar')->end()->end()->arrayNode('resource_handler')->prototype('scalar')->end()->end()->end();
        return $treeBuilder;
    }