Generates an AsyncIterable which can be awaited on for one or more signals. dispose() can be called when you are finished waiting on the events.

Example:

import { signal } from "https://deno.land/std@0.199.0/signal/mod.ts";

const sig = signal("SIGUSR1", "SIGINT");
setTimeout(() => {}, 5000); // Prevents exiting immediately

for await (const _ of sig) {
  // ..
}

// At some other point in your code when finished listening:
sig.dispose();