void Start()
 {
     RealtimeDBFactory.get().initDoneCB().add(i => {
         realtimeDB = i;
         realtimeDB.subscribe("geo", s => { onReslut(s); });
     });
 }
        private void init(RealtimeDB rdb)
        {
            string hashPath = getPath(DATA_HASH_PATH);

            Debug.Log("debug:" + dev + " type:" + GetType() + " init:" + rdb + " hashPath:" + hashPath);
            rdb.subscribe(hashPath, onHash);
        }