lua-redisHow to set expiration for key

local redis = (require 'redis').connect('127.0.0.1', 6379)
redis:set('key', 'test')
redis:expire('key', 30)ctrl + cyoutubegithub

`require 'redis'` load Redis module for Lua	`connect` connect to Redis server
`'127.0.0.1', 6379` Redis host and port to connect to	`:set` sets specified key value
`:expire` set expiration (in seconds) for the specified key	`'key'` key name to set expiration for
`30` our key will expire in 30 seconds

local redis = (require 'redis').connect('127.0.0.1', 6379)
redis:set('key', 'test')
redis:expire('key', 30)
print(redis:ttl('key'))