ttl

Controls the TTL (time-to-live) for the item in minutes.

If provided, and if the store you are using supports this feature, the item will expire this many minutes after it was last accessed. The expiration timer refreshes on both read operations (get/search) and write operations (put/update). When the TTL expires, the item will be scheduled for deletion on a best-effort basis. Defaults to None (no expiration).