redis 4.2 TypeError: redisClient.unref is not a function

[rafipiccolo]

client unref function has disapeared ?
is it intentional ?
it was useful and easy to use it : it's like saying, when there is no more work => shutdown server

import { createClient } from "redis"

let redisClient = createClient({
    url: 'redis://localhost:6379',
    legacyMode: true
})
await redisClient.connect()

redisClient.unref();
// throws TypeError: redisClient.unref is not a function

Environment:

• Node.js Version: 18.5
• Redis Server Version: 7.0.2
• Node Redis Version: 4.2
• Platform: Ubuntu 20.04.4