What is the best approach to placing a hold on an object in google cloud storage automatically after the file reaches a certain age? A default hold policy on a bucket would put a hold on right away, so that does not work. Google Cloud Storage Object Lifecycle Management does not apply to this because placing a hold is not one of the available actions for Object Lifecycle Management. Is a Cloud Function something that would be good for this kind of thing? If so, what would be a good strategy when using one to solve this need?