How to extend contract for auth.user?

[Kuzzy]

Hi, I've implemented middleware which populates user for each request. I wan't to have user object in ctxt.auth.user even if user is not logged in, e.g:

// App/Middleware/PopulateUser.ts
export default class PopulateUser {
  public async handle({ auth, request }: HttpContextContract, next: () => Promise<void>) {
     const user = auth.user
     if (user) {
        user.addDynamicRoles(
          constants.roles.dynamic.authenticated,
          constants.roles.dynamic.everyone,
       )
       // some more logic
     } else {
        auth.use().user = await createGuestUser(request) // not sure here if it legal way to override user, but it works
     }
  }
}

It works OK, but when I try to use it in controllers, I got typescript errors:

I believe, it because user has optional modifier in typings:

@adonisjs/auth/build/adonis-typings/auth.d.ts:255

Is there a way to modify this interface and remove optional modifier from user field?

Thanks.