protected override void ExecuteCmdlet() { var groupId = Team.GetGroupId(HttpClient, AccessToken); if (groupId != null) { try { if (ParameterSetName == ParamSet_ByUser) { TeamsUtility.AddUserAsync(HttpClient, AccessToken, groupId, User, Role).GetAwaiter().GetResult(); } else { TeamsUtility.AddUsersAsync(HttpClient, AccessToken, groupId, Users, Role).GetAwaiter().GetResult(); } } catch (GraphException ex) { if (ex.Error != null) { throw new PSInvalidOperationException(ex.Error.Message); } else { throw; } } } else { throw new PSArgumentException("Group not found"); } }