JavaScript and Typescript report a benign error about returning Promise and marking done

[paulyuk]

In both samples we see this, even though I believe we are doing async promises and returns right:
[2023-03-01T16:46:53.393Z] A: "It's time to typecast!"[2023-03-01T16:46:53.393Z] Error: Choose either to return a promise or call 'done'. Do not use both in your script. Learn more: https://go.microsoft.com/fwlink/?linkid=2097909