Import Signatory Cards App Functionlaity

Hi,

For testing Import signatory cards app, which is a newly added app in S/4 Hana 1909 for adding and attaching signatories to banks accounts, app needs an XML file for signatory cards which is received from banks for upload. However, I am unable to create or find such XML file which I can use for upload to test the app.

Can someone please share such XML file, since it is not available in Fiori app library documentation.