using (var listener = new SocketListener(1337)) // Start listening
{
    for (;;)
    {
        using (var remote = listener.Accept()) // Accepts a connection (blocks execution)
        {
            var data = remote.Receive(); // Receives data (blocks execution)
            remote.Send(data); // Sends the received data back
        }
    }
}

using (var socket = new ConnectedSocket("127.0.0.1", 1337)) // Connects to 127.0.0.1 on port 1337
{
    socket.Send("Hello world!"); // Sends some data
    var data = socket.Receive(); // Receives some data back (blocks execution)
}