private IEnumerator LoadBundleFromLocal(string path, Action<AssetBundle> onComplete) {
            var asyncLoad =
                AssetBundle.LoadFromFileAsync(path);

            while (!asyncLoad.isDone) {
                yield return null;
            }

            onComplete(asyncLoad.assetBundle);
        }





StartCoroutine(LoadBundleFromLocal(url, bundle => {
                            // коллбэк тут
                            if (bundle == null) {
                                Log.D($"Failed to load \"{bundleName}\" AssetBundle!");
                            } else {
                                Log.D($"Bundle \"{bundleName}\" got!");
                }