Method handleId

/**
 * Method to handle the `<id>` element for the feed.
 *
 * @param   Feed               $feed  The Feed object being built from the parsed feed.
 * @param   \SimpleXMLElement  $el    The current XML element object to handle.
 *
 * @return  void
 *
 * @since   3.1.4
 */
protected function handleId(Feed $feed, \SimpleXMLElement $el)
{
    $feed->uri = (string) $el;
}