Google authentication to access Bigquery from R

I am trying to use the bigrquery package to run query in Google's Bigquery with below code -

library(bigrquery)
bg_auth("My_Email", "My_Token")

Now, once I hit above line of code, R tries to open a browser to authenticate for Google service.

However I am running above code in a GCP instance (with Ubuntu) with no GUI and it doesnt have any active Internet access due to security reason.

So I am interested to know if there is any way to authenticate it offline and access to Bigquery.

Any help will be highly appreciated.