export function createPromise<T = void>(): {
  resolver: (resolvedData: T | PromiseLike<T>) => void;
  promise: Promise<T>;
} {
  let resolver: (resolvedData: T | PromiseLike<T>) => void = () => {};
  const promise = new Promise<T>((_resolver) => (resolver = _resolver));
  return {
    resolver,
    promise,
  };
}

export function createPromiseFn<T = void>(): {
  resolver: (resolvedData: T | PromiseLike<T>) => void;
  fn: () => Promise<T>;
} {
  const { resolver, promise } = createPromise<T>();
  return {
    resolver,
    fn: () => promise,
  };
}