Graph API (api-version=1.5) : How to remove user from Application Role using C# .NET

Hi,

I am using Azure AD for user and role management operations from my MVC web application. I am using version of Graph API as 1.5 and Microsoft.Azure.ActiveDirectory.GraphClient .Net library 2.0.6.

I need to remove an AppRoleAssignement (Application Role) assigned to user by calling Graph API. I was referring Stackoverflow link. Is there any method available in which I can use in my C# code to delete AppRoleAssignment.

When I get users from active directory, the AppRoleAssignement always come null, even if an application role is assigned to a user.

Kindly, help me providing a correct version of dll and available method to delete AppRoleAssignment.

Thank you.