private IEnumerator InstantiateObject(string url)
{
Debug.Log("BBB");
UnityWebRequest request = UnityWebRequestAssetBundle.GetAssetBundle(url);
yield return(request.SendWebRequest());
AssetBundle bundle = DownloadHandlerAssetBundle.GetContent(request);
AssetBundleManifest abm = bundle.LoadAsset <AssetBundleManifest>("StandaloneWindows");
Debug.Log(abm.ToString());
GameObject a = bundle.LoadAsset <GameObject>("A");
Instantiate(a).transform.position = Vector3.zero;
Debug.Log("AAA");
}