Scalr\Service\Aws\Client\SoapClient::_createNewSignNode PHP Method

    protected function _createNewSignNode($name, $value = NULL)
    {
        $doc = $this->sigNode->ownerDocument;
        if (!is_null($value)) {
            $node = $doc->createElementNS(self::XMLDSIGNS, 'ds:' . $name, $value);
        } else {
            $node = $doc->createElementNS(self::XMLDSIGNS, 'ds:' . $name);
        }
        return $node;
    }