Do you mean you haven't gotten any echoed output one way or the other? If that is the case, maybe it needs a more complicated method of giving feedback. I tried an echo for a function that was not working and got no info from it. Fortunately for that case, it just worked when I jiggled something and I no longer needed the echo.
I have seen posts about getting info into a debug or log file... would have to research to remember how that is supposed to work.