Getting an `Enqueue` from a `PubSub` for Explicit Sending

const program = Effect.gen(function* (_) {
  const pubsub = yield* _(PubSub.unbounded<string>());
  const sender: Queue.Enqueue<string> = pubsub;
  const reciever = yield* _(pubsub.subscribe());

  for (let i = 0; i < 10; i++) {
    yield* _(Queue.offer(sender, `Message ${i}`), Effect.fork);
  }

  for (let i = 0; i < 10; i++) {
    const message = yield* _(Queue.take(reciever));
    yield* _(Console.log(message));
  }
}).pipe(Effect.scoped);