is there anything in v3 that's similar to the v4 Persistence service?
(i'm on v3) i'm currently just manually reading/writing from/to json files in my project. what i'd like to do is instead write this against hte KeyValueStore service. Then in dev i can inject the fileSystem implementation, and in prod inject some custom made redis implementation.
though as i look through some of the v4 stuff, i see redis, and see persistence. it doesn't look immediately like it could easily implement KVS, but not sure if I'm missing something or thinking about this wrong