Generic Placeholders for Managed Configuration Android

[SNXEP]

I am adding app configurations for my android app. I want each deployment to the sub-account to go on device bundled with email, and name from google workspace on which deployment is processing (fetch name and email of user on which deployment is processing). I need generic placeholders for email and username, so they are automatically updated with respect to current deployment. (e.g. in Microsoft intune (and other MDMs) we use {{username}} as name config value and it automatically bundle current name in configurations).