Retrieves the details of an FX trade, including its settlement status. buy and sell are the amounts this trade itself settles on its value date, after deducting any part rolled, drawn down or closed out into another trade - zero once all of it has been. Each carries amountInMinorUnits alongside the same figure as a decimal value, in its respective currency. A trade reads AwaitingSettlement until it, and every trade its position was rolled, drawn down or closed out into, has settled.