Power BI REST API Get Refresh History as Admin

And please make this one of the supported read-only admin APIs which can be called by a service principal. (See https://docs.microsoft.com/en-us/power-bi/admin/read-only-apis-service-principal-authentication)

It would be nice if there was an Admin equivalent of the following REST API:
https://docs.microsoft.com/en-us/rest/api/power-bi/datasets/get-refresh-schedule-in-group
https://docs.microsoft.com/en-us/rest/api/power-bi/datasets/get-refresh-history-in-group

The user calling the above API appears to require at least contributor access to the workspace containing the datasets.  It would be nice if we could get this information as a service principal with access to the read-only Admin APIs without requiring any additional permissions.

Thanks

Karl