SYNOPSIS
Do not use directly.DESCRIPTION
There are only two guaranteed interfaces, both sort of indirect.The first one is accessing the universe of a valued set:
$valued_set->universe
This contains the members of the universe
$valued_set->universe->members
of the $valued_set.
The second supported interface is displaying universes of valued sets.
print $valued_set->universe, "\n";
This will display the members of the valued set inside square brackets: [], as opposed to valued sets, which have their members shown inside parentheses: ().