public static void ToInfoExchange(this ExchangeJson json, ref InfoExchange exchanage)
 {
     exchanage.AssetName = json.AssetName;
     exchanage.Amount    = json.Amount;
     exchanage.Buy       = json.Buy;
     exchanage.Sell      = json.Sell;
     exchanage.IsFixed   = json.IsFixed;
 }
        /// <summary>
        /// Converts InfoExchange to Json class
        /// </summary>
        /// <param name="exchange"></param>
        /// <returns></returns>
        public static ExchangeJson ToExchangeJson(this InfoExchange exchange)
        {
            ExchangeJson json = new ExchangeJson();

            json.AssetName = exchange.AssetName;
            json.Amount    = exchange.Amount;
            json.Buy       = exchange.Buy;
            json.Sell      = exchange.Sell;
            json.IsFixed   = exchange.IsFixed;
            return(json);
        }