protected override void ExecuteCmdlet()
        {
            var groupId = Team.GetGroupId(HttpClient, AccessToken);

            if (groupId != null)
            {
                try
                {
                    var channel = TeamsUtility.AddChannelAsync(AccessToken, HttpClient, groupId, DisplayName, Description, Private, OwnerUPN).GetAwaiter().GetResult();
                    WriteObject(channel);
                }
                catch (GraphException ex)
                {
                    if (ex.Error != null)
                    {
                        throw new PSInvalidOperationException(ex.Error.Message);
                    }
                    else
                    {
                        throw ex;
                    }
                }
            }
            else
            {
                throw new PSArgumentException("Group not found");
            }
        }