private bool checkForCachedBigData(string urlToCheck = null)

     {

         var allHashes = new List<Hash128>();

         bool found = false;

         string pathInStorage = "LanguageListing/";

         #if UNITY_ANDROID

         pathInStorage += "Android/bigdataobject";

         Caching.GetCachedVersions(pathInStorage, allHashes);

         #endif

         #if UNITY_IOS

         pathInStorage += "IOS/bigdataobject";

         Caching.GetCachedVersions(pathInStorage,allHashes );

          #endif

         foreach (var item in allHashes)

         {

             if (!Caching.IsVersionCached(urlToCheck, item)) continue;

             Debug.Log("Found in Cache: " + pathInStorage);

             found = true;

         }

         // will onlu be true only if one version is cached

         return found && allHashes.Count < 2;

     }