how to get shipment to do ship confirm if I use "Create one pick wave" API to create the shipment ?

Summary:

I would like to do release pick and ship confirm through API

I called "Create one pick wave" Rest API to create pick wave , release pick and created shipment.

However, the API call response does not include the shipment / shipment ID created

Furthermore, the "Get one shipment" Rest API need to use shipment as the searching key

How can I get the "shipment" field of the newly created shipment to further proceed ship confirm ?

Thanks

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