findConstantName example

        }

        if (!$pushedResponse) {
            $ch = curl_init();
            $this->logger?->info(sprintf('Request: "%s %s"', $method, $url));
            $curlopts += [\CURLOPT_SHARE => $this->multi->share];
        }

        foreach ($curlopts as $opt => $value) {
            if (null !== $value && !curl_setopt($ch, $opt, $value) && \CURLOPT_CERTINFO !== $opt && (!\defined('CURLOPT_HEADEROPT') || \CURLOPT_HEADEROPT !== $opt)) {
                $constantName = $this->findConstantName($opt);
                throw new TransportException(sprintf('Curl option "%s" is not supported.', $constantName ?? $opt));
            }
        }

        return $pushedResponse ?? new CurlResponse($this->multi, $ch, $options, $this->logger, $method, self::createRedirectResolver($options, $host, $port), CurlClientState::$curlVersion['version_number'], $url);
    }

    public function stream(ResponseInterface|iterable $responses, float $timeout = null): ResponseStreamInterface
    {
        if ($responses instanceof CurlResponse) {
            $responses = [$responses];
        }