Expiration time for the key. The expiration time is specified as a Unix timestamp in seconds since UNIX epoch, and the key will be deleted from the database at the specified time.
Optionalttl
ttl?:null|number
Time-to-live (TTL) for the key. The TTL is specified in seconds, and the key will be deleted from the database at earliest after the specified number of seconds have elapsed.
Expiration time for the key. The expiration time is specified as a Unix timestamp in seconds since UNIX epoch, and the key will be deleted from the database at the specified time.