public async Task ParentOrder()
        {
            await apiClient.CancelAllOrders(new CancelAllOrdersParameter
            {
                ProductCode = ProductCode.FxBtcJpy
            });

            var parameter = new SendParentOrderParameter
            {
                OrderMethod    = OrderMethod.IfDone,
                MinuteToExpire = 10000,
                TimeInForce    = TimeInForce.GoodTilCanceled,
                Parameters     = new[]
                {
                    new ParentOrderDetailParameter
                    {
                        ProductCode   = ProductCode.FxBtcJpy,
                        ConditionType = ConditionType.Limit,
                        Side          = Side.Buy,
                        Price         = buyPrice,
                        Size          = OrderSize
                    },
                    new ParentOrderDetailParameter
                    {
                        ProductCode   = ProductCode.FxBtcJpy,
                        ConditionType = ConditionType.Stop,
                        Side          = Side.Sell,
                        TriggerPrice  = sellPrice,
                        Size          = OrderSize
                    }
                }
            };

            var res1 = await apiClient.SendParentOrder(parameter);

            var parentOrderAcceptanceId = res1?.ParentOrderAcceptanceId;

            Assert.NotNull(parentOrderAcceptanceId);

            var health = await PublicApi.GetHealth();

            ThreadSleep(health.Status);

            var trail = new SendParentOrderParameter
            {
                Parameters = new[]
                {
                    new ParentOrderDetailParameter
                    {
                        ProductCode   = ProductCode.FxBtcJpy,
                        ConditionType = ConditionType.Trail,
                        Side          = Side.Buy,
                        Offset        = 30000,
                        Size          = OrderSize
                    }
                }
            };

            var resTrail = await apiClient.SendParentOrder(trail);

            var trailParentOrderAcceptanceId = resTrail?.ParentOrderAcceptanceId;

            Assert.NotNull(trailParentOrderAcceptanceId);

            ThreadSleep(health.Status);

            var resAll = await apiClient.GetParentOrders(ProductCode.FxBtcJpy, 10);

            Assert.NotNull(resAll);

            ThreadSleep(health.Status);

            var res2 = await apiClient.GetParentOrder(ProductCode.FxBtcJpy, parentOrderAcceptanceId : parentOrderAcceptanceId);

            Assert.NotNull(res2);

            await apiClient.CancelParentOrder(new CancelParentOrderParameter
            {
                ProductCode             = ProductCode.FxBtcJpy,
                ParentOrderAcceptanceId = parentOrderAcceptanceId
            });

            ThreadSleep(health.Status);

            var resTrail2 = await apiClient.GetParentOrder(ProductCode.FxBtcJpy, parentOrderAcceptanceId : trailParentOrderAcceptanceId);

            Assert.NotNull(resTrail2);

            await apiClient.CancelParentOrder(new CancelParentOrderParameter
            {
                ProductCode             = ProductCode.FxBtcJpy,
                ParentOrderAcceptanceId = trailParentOrderAcceptanceId
            });

            ThreadSleep(health.Status);

            await Task.WhenAll(Enumerable.Range(0, 3).Select(_ => apiClient.SendParentOrder(parameter)));

            ThreadSleep(health.Status);

            await apiClient.CancelAllOrders(new CancelAllOrdersParameter
            {
                ProductCode = ProductCode.FxBtcJpy
            });

            ThreadSleep(health.Status);

            var res3 = await apiClient.GetParentOrders(ProductCode.FxBtcJpy);

            Assert.True(res3.Count(x => x.ProductCode == ProductCode.FxBtcJpy &&
                                   x.ParentOrderState == ParentOrderState.Active) == 0);
        }