private void StartVersionCheck()
 {
     Debug.Log("Checking for latest plugin version...");
     _latestReleaseVersion     = null;
     _latestReleaseDownloadUrl = null;
     _versionCheckRequest      = UnityWebRequest.Get(LatestReleaseQueryUrl);
     GooglePlayInstantUtils.SendWebRequest(_versionCheckRequest);
 }
        private static AsyncOperation StartAssetBundleDownload(string assetBundleUrl, out UnityWebRequest webRequest)
        {
#if UNITY_2018_1_OR_NEWER
            webRequest = UnityWebRequestAssetBundle.GetAssetBundle(assetBundleUrl);
#else
            webRequest = UnityWebRequest.GetAssetBundle(assetBundleUrl);
#endif
            return(GooglePlayInstantUtils.SendWebRequest(webRequest));
        }