-X->+---------+
               -Y->| Node    |
               -Z->+---------+
                      |   ^
                      A   B
                      v   |
                   +---------+
                   | Node    |
                   +---------+

##</code><code>##

-X->+---------+    +---------+
-Y->| Wrapper |-J->| Node    |
-Z->+---------+    +---------+
                      |   ^
                      A   B
                      v   |
                   +---------+
                   | Node    |
                   +---------+

##</code><code>##

use Object::Destroyer qw( );
$tree = Object::Destroyer->new($tree);