I am trying to move from using the entire googleapis package in my firebase cloud function (nodejs) project to using only the sub packages I need.

This is what I have that works currently:

const {google} = require('googleapis');

const oAuth2Client = new google.auth.OAuth2(
  CLIENT_ID,
  CLIENT_SECRET,
  REDIRECT_URI
);

oAuth2Client.setCredentials({ refresh_token: REFRESH_TOKEN });
// Do some stuff with oAuth2Client

This is what I am trying to do but not having success. I have run npm i @googleapis/oauth2.
I am getting

Error: Failed to load function definition from source: Failed to
generate manifest from function source: TypeError: OAuth2 is not a
constructor

const { OAuth2 } = require('@googleapis/oauth2');
const oAuth2Client = new OAuth2 (
  CLIENT_ID,
  CLIENT_SECRET,
  REDIRECT_URI
);

oAuth2Client.setCredentials({ refresh_token: REFRESH_TOKEN });
// Do some stuff with oAuth2Client

I have also tried new OAuth2.auth.OAuth2( and new OAuth2.OAuth2( and get:

Error: Failed to load function definition from source: Failed to
generate manifest from function source: TypeError: Cannot read
properties of undefined (reading ‘auth’)