Hi, what does the underscore character mean in this debug output? 159:37 5 (delete ((3 . "c") (((2 . "b") (()) 1) (5 . "e") (()) 1) 2) 2) 163:49 4 (delete ((2 . "b") (()) 1) _) 152:9 3 (delete _ _) 86:11 2 (skew _) 64:6 1 (horizontal-left-link? _) 46:11 0 (left-tree _)
Knowing the value of those parameters would be super helpful here, but for some reason they have been replaced by underscores.