public static function scrubRequestSoapHeaders(
        $soapXml,
        array $headersToScrub
    ) {
        foreach ($headersToScrub as $header) {
            $regex = sprintf(self::$SOAP_REQUEST_HEADER_TAG_REGEX, $header);
            $soapXml = preg_replace($regex, '\1' . self::$REDACTED . '\2', $soapXml, 1);
        }

        return $soapXml;
    }