How can I add the active directory users to the active directory group with role assigned?

I tried below command to add user to the group and it's adding group but not the role.

tabcmd addusers "Tableau Tester" --users "C:\Scripts\test.csv"

tabcmd createusers "C:\Scripts\test.csv" --role "Interactor"

I have question first do I need to add user and add that user to the group? I am little confused and need advice. Also every night we are doing Active Directory group sync so once added user to the group the sync will delete those added user in the Tableau.

Regards,

Yash