The bot presumably is running in something like chrome headless or selenium (if you're processing JS), so it would have access to the image the moment the respo

The bot presumably is running in something like chrome headless or selenium (if you're processing JS), so it would have access to the image the moment the response is received. Unless Google is literally streaming in the image frame-by-frame, I'll admit I haven't looked into the details but this doesn't seem likely as it's pretty complicated compared to just using an image.