Missing Microsoft.Graph.Beta cmdlet to list role definitions for the Exchange Online provider

The beta version allows to [list role definitions for the Exchange Online provider](https://learn.microsoft.com/en-us/graph/api/rbacapplication-list-roledefinitions?view=graph-rest-beta&tabs=http#example-4-list-role-definitions-for-the-exchange-online-provider) but cmdlet is missing in Microsoft.Graph.Beta.

Is there any plan to add it?