traces : unit -> {name : string, current_value : int,
                  default_value : int, maximum : int} list
STRUCTURE
Feedback
SYNOPSIS
Returns a list of registered tracing variables.
DESCRIPTION
The function traces is part of the interface to a collection of variables that control the verboseness of various tools within the system. Tracing can be useful both when debugging proofs (with the simplifier for example), and also as a guide to how an automatic proof is proceeding (with mesonLib for example).
FAILURE
Never fails.
EXAMPLE
- traces();
> val it =
    [{default = 10, name = "Subgoal number", trace_level = 10},
     {default = 0, name = "Rewrite", trace_level = 0},
     {default = 0, name = "Ho_Rewrite", trace_level = 0}]

SEEALSO
register_trace, set_trace, reset_trace, reset_traces, trace
HOL  Kananaskis-11