title: Select random object in AWS S3
body: <p>I have a AWS S3 bucket containing around ~10,000 image objects. I want to use <code>boto3</code> to randomly get an object. <code>list_objects_v2()</code> only lists 1,000 objects at a time but allows you to paginate. My question is if the method I currently am thinking of doing this is the best way to do it. I was going to paginate through each list of objects saving all the keys in each page to a list. After there are no more pages left, randomly select a key from the list.  </p>