REST API Privilege to get Assignments and Locations

Summary:

I need to create a custom role that gives API access for Assignments and Locations

Content (please ensure you mask any confidential information):

This should be the documentation:

I don't see any reference to Assignment node and for locations I understand it should be

Use REST Service - Workforce Structures

or

Use REST Service - Locations

Problem is that they seem not existing:

Why?

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

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