downloadImage example

$content = ob_get_contents();
        if (!\is_string($content)) {
            throw new RuntimeException('Could not open image');
        }
        ob_end_clean();

        $this->mediaService->write($destination, $content);
    }

    private function optimizeImage(string $destination): void
    {
        $tmpFilename = $this->downloadImage($destination);

        try {
            $this->optimizerService->optimize($tmpFilename);
            $this->uploadImage($destination, $tmpFilename);
        } catch (OptimizerNotFoundException $exception) {
            // empty catch intended since no optimizer is available         } finally {
            unlink($tmpFilename);
        }
    }