method Socket.prototype.unref
Usage in Deno
```typescript import { Socket } from "node:node__dgram.d.ts"; ```
Socket.prototype.unref(): this
By default, binding a socket will cause it to block the Node.js process from
exiting as long as the socket is open. The `socket.unref()` method can be used
to exclude the socket from the reference counting that keeps the Node.js
process active, allowing the process to exit even if the socket is still
listening.
Calling `socket.unref()` multiple times will have no additional effect.
The `socket.unref()` method returns a reference to the socket so calls can be
chained.
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