public function get($filters)
    {
        $matches = $this->filter($filters);
        $n = count($matches);
        if ($n == 0) {
            $msg = "No ".$this->objectClass." found matching ".json_encode($filters);
            throw new Exceptions\ObjectDoesNotExistException($msg);
        } elseif ($n > 1) {
            $msg = "Multiple ".$this->objectClass." objects ($n) found matching ".json_encode($filters);
            throw new Exceptions\MultipleObjectsReturnedException($msg);
        }
        return $matches[0];
    }