public void PlaceMarketOrder_Test()
        {
            var orderParams = new MarketOrderParams
            {
                ClientOid = Guid.NewGuid().ToString(),
                Pair      = "ETH-BTC",
                Side      = Side.BUY,
                Size      = 2
            };

            var orderId = _service.PlaceMarketOrder(orderParams).Result;

            Assert.NotNull(orderId);
        }