public async Task GetMarkets()
        {
            var markets = await api.GetMarkets(MarketX.Category.BITCOIN);

            Assert.That(markets, Is.Not.Empty);
            Assert.That(markets[0].ToString(), Is.Not.Empty);
            Console.WriteLine(markets[0]);
        }
        public async Task GetMarkets()
        {
            var res1 = await PublicApi.GetMarkets();

            Assert.NotNull(res1);
        }