Parsing of response

        $suffixes = $result->getBody();
        $count = 0;
        $shaEnd = strtoupper($shaEnd);
        $suffixes = explode("\r\n", $suffixes);
        foreach ($suffixes as $suffix) {
            list($suffix, $pwnCount) = explode(':', $suffix);
            if ($suffix === $shaEnd) {
                $count += (int)$pwnCount;
            }
        }

Request

        $shaStart = substr($sha, 0, 5);
        $shaEnd = substr($sha, 5);
        $client = new Client([
            'base_uri' => static::PWND_API_URL
        ]);
        $result = $client->request('GET', 'range/' . $shaStart, [
            'headers' => [
                'user-agent'  => static::USER_AGENT,
                'api-version' => static::API_VERSION
            ]
        ]);