While overriding the GetBucketForImport method in BCSalesOrderProcessor graph getting error.

Hi there, 

we have a customization where we have overridden the GetBucketForImport method in BCSalesOrderProcessor.cs graph. After overridden we are facing issue at await keyword.

Please refer the below screenshots and code.

Overridden code:

 public delegate Task<EntityStatus> GetBucketForImportDelegate(BCSalesOrderBucket bucket, BCSyncStatus syncstatus, CancellationToken cancellationToken);
        [PXOverride]
        public async Task<EntityStatus> GetBucketForImport(BCSalesOrderBucket bucket, BCSyncStatus syncstatus, CancellationToken cancellationToken, GetBucketForImportDelegate baseMethod)
        {
            OrderData data = await orderDataProvider.GetByID(syncstatus.ExternID);
            if (data == null) return EntityStatus.None;

            await Task.Yield();
            data.OrderProducts = new List<OrdersProductData>();
            await foreach (var item in orderProductsRestDataProvider.GetAll(syncstatus.ExternID, cancellationToken))
            {

                data.OrderProducts.Add(item);
            }

            MappedOrder obj = bucket.Order = bucket.Order.Set(data, data.Id?.ToString(), data.Id?.ToString(), data.DateModifiedUT.ToDate());

            EntityStatus status = Base.EnsureStatus(obj, SyncDirection.Import);

            if (status != EntityStatus.Pending && status != EntityStatus.Synchronized && Base.Operation.SyncMethod != SyncMode.Force)
                return status;

            return status;
        }

Base code screenshot:

Thanks in advance.