[tpm] private method call nuances

[Madison Kelly]

Hi all,

   I was wondering what, if anything, would be different between calling 
a module's (private) method in these two ways:

$self->_count_module();
- vs -
&_count_module($self);

   Of course, '$self' is a (hash) reference 'bless'ed into the current 
module. Functionally I don't see a difference (yet).

Thanks!

A curious Madi