I need the embedded Go API to let callers inspect the remaining expiration time for keys stored in a…

I need the embedded Go API to let callers inspect the remaining expiration time for keys stored in a…: a task in MiMo-V2.6-RL-harbor-code: MiMo-V2.6-RL Code (Harbor) (Harbor dataset). For each data type, if a key has no expiration metadata or does not exist, the matching TTL method should return…

The task

For each data type, if a key has no expiration metadata or does not exist, the matching TTL method should return `-1, nil`. If I create a key, attach a 60 second expiration using that data type's existing expire method, and immediately call the matching TTL method, it should return a positive `int64` no greater than…

Part of FineEnvs/MiMo-V2.6-RL-harbor-code.