Calotype\SEO\Generators\SitemapGenerator::loadClosures PHP Method

    protected function loadClosures()
    {
        foreach ($this->closures as $closure) {
            $instance = $closure();
            if (is_array($instance) || $instance instanceof Traversable) {
                $this->addAll($instance);
            } else {
                $this->add($instance);
            }
        }
    }