public function storePricesUpload(array $prices, $site = null)
    {
        if (!count($prices)) {
            throw new \InvalidArgumentException(
                'Parameter `prices` must contains array of the prices'
            );
        }

        /* @noinspection PhpUndefinedMethodInspection */
        return $this->client->makeRequest(
            '/store/prices/upload',
            "POST",
            $this->fillSite($site, ['prices' => json_encode($prices)])
        );
    }