redis.set("key1", "Hello")

assert redis.pttl("key1") == -1

redis.expire("key1", 1000)

assert redis.pttl("key1") > 0

redis.persist("key1")

assert redis.pttl("key1") == -1

​
Arguments

​
key
str
required

The key

​
Response

The number of milliseconds until this expires, negative if the key does not exist or does not have an expiration set.

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