How to retrieve information on filled orders?

Hi all, I am trying to retrieve information(filled time, qty, price etc) on market orders that are filled.

The GetOrders method seems to only filter by GetOrderRequest, which can only take in OrderStatus of open, closed or all. However, based on the OrderStatus documentation, open, closed and all are not even valid values.

If anyone has alternative methods for me to try out please let me know too. Thanks in advance.

GetOrders

GetOrderRequest

OrderStatus