method Socket.prototype.dropMembership
Usage in Deno
```typescript import { Socket } from "node:node__dgram.d.ts"; ```
Socket.prototype.dropMembership(multicastAddress: string,multicastInterface?: string,): void
Instructs the kernel to leave a multicast group at `multicastAddress` using the `IP_DROP_MEMBERSHIP` socket option. This method is automatically called by the
kernel when the socket is closed or the process terminates, so most apps will
never have reason to call this.
If `multicastInterface` is not specified, the operating system will attempt to
drop membership on all valid interfaces.
void