internal override void Invoke(MessageReceivedEventArgs e)
{
string message = PlainText.Unescape(e.Message);
if (message.Contains("@"))
{
var mentions = ((IGroup)e.Source).GetMembers().Where(x => message.Contains("@" + x.DisplayName, StringComparison.OrdinalIgnoreCase)).Select(x => x.Mention().ToSendableString());
if (mentions.Any())
{
e.Source.Send(string.Join(" ", mentions));
}
}
}