+=item levelnums
+
+Subroutine. Returns ordered list of level nums.
+
+=cut
+
+sub levelnums {
+ sort keys %LEVELS;
+}
+
+=item levelmap
+
+Subroutine. Returns ordered map of level num => level name.
+
+=cut
+
+sub levelmap {
+ map { $_ => $LEVELS{$_} } levelnums;
+}
+