public async Task ShouldExtendLease()
        {
            var leaseId = await etcdClient.PutWithLease("test", "value", 1);

            await Task.Delay(1100);

            await etcdClient.KeepAliveLease(leaseId);

            await Task.Delay(1100);

            await etcdClient.KeepAliveLease(leaseId);

            await Task.Delay(1100);

            var res = await etcdClient.Get("test");

            Assert.AreEqual("value", res);
        }