code: public function getUrls()
      {
          $all = array();
          foreach ($this->links as $link) {
              $url   = $this->getUrlFromLink($link);
              $all[] = $url->asString();
          }
  
          return $all;
      }
docs: Accessor for a list of all links.
  
  @return array   List of urls with scheme of http or https and hostname.