UntagRoleResponse

The following example shows how to remove a tag with the key 'Dept' from a role named 'taggedrole'.

To remove a tag from an IAM role

var client = new AmazonIdentityManagementServiceClient();
var response = client.UntagRole(new UntagRoleRequest 
{
    RoleName = "taggedrole",
    TagKeys = new List<string> {
        "Dept"
    }
});