Scalr\Service\Aws::getUserArn PHP Method

    public function getUserArn()
    {
        try {
            return $this->iam->user->fetch()->arn;
        } catch (ClientException $e) {
            if (preg_match('/arn\\:aws[\\w-]*\\:iam\\:\\:(\\d+)\\:user/', $e->getMessage(), $matches)) {
                return $matches[0];
            } else {
                throw $e;
            }
        }
    }