Determining the names of function arguments.

[mpb <mpb.mail@...>]

Hi,

Is there any way to determine the names of function arguments _prior_
to calling the function?

debug.getlocal will tell me the names of function arguments after the
function has been called, but I would like to probe the names of
arguments prior to calling the function.  Specifically, I want to know
if the first argument is named 'self'.

Thanks!

-mpb