/// <inheritdoc/>
public async Task <QBPriceLevelResponse <T> > SetPriceLevel <T>(string itemId, string priceLevelId, string editSequence, double newPrice)
{
await OpenConnection();
IMsgSetRequest request = CreateRequest();
IPriceLevelMod priceLevelRequest = request.AppendPriceLevelModRq();
priceLevelRequest.ListID.SetValue(priceLevelId);
priceLevelRequest.EditSequence.SetValue(editSequence);
IPriceLevelPerItem itemRefRequest = priceLevelRequest.ORPriceLevel.PriceLevelPerItemCurrency.PriceLevelPerItemList.Append();
itemRefRequest.ItemRef.ListID.SetValue(itemId);
itemRefRequest.ORPriceLevelPrice.ORCustomPrice.ORORCustomPrice.CustomPrice.SetValue(newPrice);
// TODO - parse this to make sure out updates was execute successfully and
// if so then we want to merge this with our local instance of the item
IMsgSetResponse queryResponse = await MakeRequestAsync(request).ConfigureAwait(false);
CloseConnection();
return(ProcessQueryAsXML <QBPriceLevelResponse <T> >(queryResponse, "PriceLevelModRs"));
}