protected function _aarrayToMultiline($aInput)
    {
        if (is_array($aInput)) {
            $sMultiline = '';
            foreach ($aInput as $sKey => $sVal) {
                if ($sMultiline) {
                    $sMultiline .= "\n";
                }
                $sMultiline .= $sKey . " => " . $sVal;
            }

            return $sMultiline;
        }
    }