Add support for Get `Collaboration restrictions` in `External Identities > External collaboration settings`

Is your feature request related to a problem? Please describe the problem.

Dear team,

I am trying to retrieve the Collaboration restrictions in External Identities > External collaboration settings from https://entra.microsoft.com/.
However, I could not find any relevant API call in either the GA or Beta versions of Graph API that provides these details. Could you please confirm if this functionality is available, or consider adding support for retrieving Collaboration restrictions via Graph API?

We have tried below API calls but does not help:
https://learn.microsoft.com/en-us/graph/api/crosstenantaccesspolicy-get?view=graph-rest-1.0&tabs=http
https://learn.microsoft.com/en-us/graph/api/externalidentitiespolicy-get?view=graph-rest-beta&tabs=http
https://learn.microsoft.com/en-us/graph/api/emailauthenticationmethodconfiguration-get?view=graph-rest-1.0&tabs=http
https://learn.microsoft.com/en-us/graph/api/authorizationpolicy-get?view=graph-rest-1.0&tabs=http

Please see the below image:

Thanks

Describe the solution you'd like.

I would like to add support in the SDK to retrieve Collaboration restrictions (domain allow/deny list) from Microsoft Graph API.
Specifically, this should expose the configuration corresponding to:

• Allow invitations to be sent to any domain (most inclusive)
• Deny invitations to the specified domains
• Allow invitations only to the specified domains (most restrictive)

Additional context?

No response

Start by reviewing the linked Microsoft Graph documentation for crosstenantaccesspolicy, externalidentitiespolicy, emailauthenticationmethodconfiguration, and authorizationpolicy. Confirm whether Graph exposes the requested collaboration restrictions before examining the Go SDK's generated support. Done means identifying a supported API shape and exposing all three domain-list configurations, or documenting that the upstream API does not provide them.