$minmax = [ $ibx->mm->minmax ];
ok(defined $minmax->[0] && defined $minmax->[1], 'minmax defined');
is_deeply($minmax, [ 1, 10 ], 'minmax as expected');
$minmax = [ $ibx->mm->minmax ];
ok(defined $minmax->[0] && defined $minmax->[1], 'minmax defined');
is_deeply($minmax, [ 1, 10 ], 'minmax as expected');