calculator.initialize(getMailbox());
final SMBuilder smb = new SMBuilder();
smb._send(calculator, new Set(1));
smb._send(calculator, new Add(2));
smb._send(calculator, new Multiply(3), "result");
smb._return(new ObjectFunc() {
@Override
public Object get(SimpleMachine sm) {
return sm.get("result");
}
});