Implementing OAuth Authentication with GitHub for Teams Bot/Message Extension App

Question

I am developing a Teams bot/message extension application using the Teams Toolkit within Visual Studio Code and TypeScript. As part of the functionality, I am aiming to integrate user authentication with GitHub utilizing the OAuth protocol.

I have reviewed the documentation (https://learn.microsoft.com/en-us/microsoftteams/platform/tabs/how-to/authentication/auth-oauth-provider) available on implementing OAuth authentication for Teams tab apps; however, I understand this approach may not be directly applicable to bot/message extensions.

I would greatly appreciate guidance on the appropriate approach to implement OAuth authentication with GitHub for my Teams bot/message extension app. This would allow the app to leverage functionalities offered by the GitHub API on behalf of authenticated users.

Thank you for your time and assistance....