v4 not exporting AccessTokenError

Checklist

[X] The issue can be reproduced in the nextjs-auth0 sample app (or N/A).
[X] I have looked into the Readme, Examples, and FAQ and have not found a suitable solution or answer.
[X] I have looked into the API documentation and have not found a suitable solution or answer.
[X] I have searched the issues and have not found a suitable solution or answer.
[X] I have searched the Auth0 Community forums and have not found a suitable solution or answer.
[X] I agree to the terms within the Auth0 Code of Conduct.

Description

In our custom middleware we are checking for an auth0 session token like this:

const accessToken = await auth0.getAccessToken();
if (!accessToken) {
  // Redirect to the auth0 login page
  return NextResponse.redirect(new URL("/auth/login", req.url));
}

However, I think getAccessToken can also throw errors, and if so we want to redirect to login. In this case we would need to handle AccessTokenError so we can do something like this:

try {
  const accessToken = await auth0.getAccessToken();
  ...
} catch (err) {
  if (err instanceof AccessTokenError) {
    console.error(err);
    return NextResponse.redirect(new URL("/auth/login", req.url));
  }
  throw err;
}

However, I cannot find AccessTokenError in the auth0 package.

For now I can instead do this:

try {
  const accessToken = await auth0.getAccessToken();
  ...
} catch (err) {
  if (err instanceof Error && err.name === "AccessTokenError") {
    console.error(err);
    return NextResponse.redirect(new URL("/auth/login", req.url));
  }
  throw err;
}

But I think access to AccessTokenError would be preferred.

Thanks in advance.

Reproduction

See above

Additional context

No response

nextjs-auth0 version

4.0.0-beta.6

Next.js version

15.0.3

auth0 / nextjs-auth0

v4 not exporting AccessTokenError #1819