-  list_debug_topics is det
 
-  list_debug_topics(+Options) is det
 - List currently known topics for debug/3 and their setting. Options
is either an atom or string, which is a shorthand for
[search(String)] or a normal option list. Defined options are:
- search(String)
 - Only show topics that match String. Match is case insensitive
on the printed representation of the term.
 
- active(+Boolean)
 - Only print topics that are active (
true) or inactive
(false). 
- output(+To)
 - Only print topics whose target location matches To. This option
implicitly restricts the output to active topics.