How to Get the Transfer Order Number immediately after TO Creation using REST API?

Summary:

We have a requirement to create transfer order and then create reservation for the same transfer order lines both using REST API. For creating reservations we required the transfer order shipment details and for that we needed the transfer order number. When we executed the REST API - "Get all supply order lines" to extract the transfer order details immediately after calling the create a supply request REST API (to create Transfer Order) then it does not returns any transfer order number immediately resulting in erroring out the integration. Then we noticed that the same API ("Get all supply order