I have checked the repo and it is https://github.com/bencagri/photon-bundle/blob/master/src/Service/PhotonService.php where the code is there $generator = new Generate($imageUrl, $effects);.
I have checked the repo and it is https://github.com/bencagri/photon-bundle/blob/master/src/Service/PhotonService.php where the code is there $generator = new Generate($imageUrl, $effects);.
RE: PhotonBundle for Symfony