Public visible entities published by a module

[Cecil Ward]

A bit of a weird question, and I’m not sure how to word it. Say I 
have a module, and I’d like to list / enumerate all the public 
visible things that the module exports / publishes ‘ makes 
visible. Is there a way of doing that ? Of getting that kind of 
listing?

I’m wondering about information leaking when things should be 
encapsulated.