Am I missing the documentation somewhere? I see directions for setup and installation but nothing about what's supported for each mock. Obviously they haven't

Am I missing the documentation somewhere? I see directions for setup and installation but nothing about what's supported for each mock. Obviously they haven't rebuilt all the service from scratch to run on my local machine, so what can I do here? If I create an S3 bucket will the API return that bucket in my next ListBuckets call? If so, is that persistent? Etc.