How to use courses.courseWork.addOnAttachments resource?

Hello everyone may I ask how I can use courses.courseWork.addOnAttachments resource with this lib? I've installed the lib with `yarn install googleapis` with version `140.0.1` or yarn install `@googleapis/classroom` with version `4.0.9`. But somehow I can't use like `google.classroom({ version: 'v1' }).courses.courseWork.addOnAttachments.create()` ? I've see in this repo there is `addOnAttachments` in this [code](https://github.com/googleapis/google-api-nodejs-client/blob/main/src/apis/classroom/v1.ts#L3734) . But somehow when I've install the lib, I can't find that code