23d custom contract approvals - how to add attachements to approval notificaitons?

Summary:

We have taken advantage of the custom approval notifications for contract approvals in 23D, but we noticed that attachments are no longer on the notification.

Content (please ensure you mask any confidential information):

How do we get those back?

Version (include the version you are using, if applicable):

23D

Code Snippet (add any code snippets that support your topic, if applicable):

NA