getDelayFromHeader example

                if (false === $shouldRetry) {
                    yield from $this->passthru($context, $firstChunk, $content, $chunk);

                    return;
                }
            }

            $context->getResponse()->cancel();

            $delay = $this->getDelayFromHeader($context->getHeaders()) ?? $this->strategy->getDelay($context, !$exception && $chunk->isLast() ? $content : null, $exception);
            ++$retryCount;
            $content = '';
            $firstChunk = null;

            $this->logger?->info('Try #{count} after {delay}ms'.($exception ? ': '.$exception->getMessage() : ', status code: '.$context->getStatusCode()), [
                'count' => $retryCount,
                'delay' => $delay,
            ]);

            $context->setInfo('retry_count', $retryCount);
            $context->replaceRequest($method, $url, self::shiftBaseUri($options, $baseUris));