method Socket.prototype.setMulticastLoopback Usage in Deno```typescript import { Socket } from "node:node__dgram.d.ts"; ``` Socket.prototype.setMulticastLoopback(flag: boolean): boolean Sets or clears the `IP_MULTICAST_LOOP` socket option. When set to `true`, multicast packets will also be received on the local interface. This method throws `EBADF` if called on an unbound socket. Parameters flag: boolean Return Type boolean