Predis\Command\Redis\MSET::setArguments PHP Метод

    public function setArguments(array $arguments)
    {
        if (count($arguments) === 1 && is_array($arguments[0])) {
            $flattenedKVs = array();
            $args = $arguments[0];
            foreach ($args as $k => $v) {
                $flattenedKVs[] = $k;
                $flattenedKVs[] = $v;
            }
            $arguments = $flattenedKVs;
        }
        parent::setArguments($arguments);
    }