googleapis/google-api-nodejs-client ? reverse-engineered prompt

Build me a Node.js library that makes it easy to use Google APIs from JavaScript and TypeScript.

I want to be able to sign in with OAuth, use an API key, or connect with a service account, then call Google services in a simple way like getting a blog, creating a document, or making other API requests. Please include a few working examples, clear TypeScript types, and support for promises and async await. It should be easy to install from npm and work cleanly with the Google API discovery based endpoints.

Make sure the library is well organized, has good tests, and includes sample code I can copy and run. If anything needs the latest docs or API details, look them up online and use current best practices.