Passing Parameters from DevOps to Test Complete

Hi,
We are using on-prem DevOps Server 2020 Update 1.2 and Test Complete 15.81.7.
I have created a simple Test Case in DevOps:

That is supposed to pass the username and password to an automated test in Test Complete.

The Test Case has a linked automated test in Test Complete and is run via a teat Suite / Test Plan and a pipeline.

Does any one know how to get the parameters defined in the Test Case passed to Test Complete?

Many Thanks

Dave