private function loadFromExtensions(\DOMDocument $xml)
{
foreach ($xml->documentElement->childNodes as $node) {
if (!$node instanceof \DOMElement || $node->namespaceURI === self::NS) {
continue;
}
$values = static::convertDomElementToArray($node);
if (!is_array($values)) {
$values = array();
}
$this->container->loadFromExtension($node->namespaceURI, $values);
}
}