Where to find the Shared Correlation ID field from the Microsoft Graph API for DirectRouting calls?

Question

We are able to download a DirectRouting report from the Azure Admin portal which includes a field called Shared Correlation ID. This field doesn't seem to be available when getting directrouting data from the Microsoft Graph API. Ideally we just want to use Microsoft Graph API for getting the data as this can be automated. Can anyone advise if this field is available anywhere within the Microsoft Graph API?

Thanks