如何修改SNMPEngine示例中的trap团体字

我正在测试SharpSNMP库，并使用了一些示例，该库很棒，但缺乏一些文档。

我的问题是我如何改变我正在听陷阱的社区，因为示例中没有任何内容对我有意义。

        if (args.Length != 0)
        {
            return;
        }
        Container = new UnityContainer().LoadConfiguration("snmptrapd");
        var users = Container.Resolve<UserRegistry>();
        users.Add(new OctetString("neither"), DefaultPrivacyProvider.DefaultPair);
        users.Add(new OctetString("authen"), new DefaultPrivacyProvider(new MD5AuthenticationProvider(new OctetString("authentication"))));
        users.Add(new OctetString("privacy"), new DESPrivacyProvider(new OctetString("privacyphrase"),
                                                                     new MD5AuthenticationProvider(new OctetString("authentication"))));
        var trapv1 = Container.Resolve<TrapV1MessageHandler>("TrapV1Handler");
        trapv1.MessageReceived += WatcherTrapV1Received;
        var trapv2 = Container.Resolve<TrapV2MessageHandler>("TrapV2Handler");
        trapv2.MessageReceived += WatcherTrapV2Received;
        var inform = Container.Resolve<InformRequestMessageHandler>("InformHandler");
        inform.MessageReceived += WatcherInformRequestReceived;
        using(var engine = Container.Resolve<SnmpEngine>())
        {
            engine.Listener.AddBinding(new IPEndPoint(IPAddress.Any, 162));
            engine.Start();
            Console.WriteLine("#SNMP is available at http://sharpsnmplib.codeplex.com");
            Console.WriteLine("Press any key to stop . . . ");
            Console.Read();
            engine.Stop();
        }