function setRoundCustomPoints($points, $relax = false, $multicall = false)
    {
        if (!is_array($points)) {
            throw new InvalidArgumentException('points = ' . print_r($points, true));
        }
        if (!is_bool($relax)) {
            throw new InvalidArgumentException('relax = ' . print_r($relax, true));
        }

        return $this->execute(ucfirst(__FUNCTION__), array($points, $relax), $multicall);
    }