import { AsyncLocalStorage } from 'node:async_hooks';
const storage = new AsyncLocalStorage();
const task = (id) =>
  storage.run({ id }, async () => {
    await Promise.resolve();
    return storage.getStore().id;
  });
console.log((await Promise.all([task('r-a'), task('r-b')])).join(','));
console.log(storage.getStore() === undefined);