Sharepoint API to fetch users for each sharepoint parent Sites and its subsite

Sharepoint API to fetch users for each sharepoint Sites and subsites

Currently we do not have graph API capability to list all the users (owners, members & Visitors) who have access to sharepoint parent site and subsite.

There is a possibility that sharepoint subsite might have different users access than the sharepoint parent site, the graph api should be able to list the users exactly.