extract attachments from signed envelope

I have an envelope that requires two documents to be attached. 

I have trained an AI model (outside of docusign) to validate the attachments. I need to extract the attached documents as two individual PDF’s.

I have tried the List_documents_from_an_envelope action, but it does not include the attachments. 

e.g. this document requires up to three attachments. 

 

The signed download PDF contains two documents  

Doc 1
1 - Certificate request
2 - Attachment 1 
3 - Attachment 2

Doc 2
1 - Certificate 


when I use the list documents action, I can only see the original form, and the certificate. 

This seems like quite a basic action that other esignature solutions can do?
Unfortunately we may have to look at another provider if this isn't possible.