Following the instructions on how to Perform G Suite Domain-Wide Delegation of Authority as see here https://developers.google.com/admin-sdk/directory/v1/guides/delegation I accomplished all of the steps, but now I am stuck on implementing an SDK Directory service Object in my app, I am using Angular 7 on the frontened and NodeJs(Firebase cloud functions) for my backend but the code given here only supports Java, Python and Go. Can anyone show me how I would convert this into NodeJS?