parent $tree
object $tree_1

var $root dbref 'tree_1
var $root child_index 0
var $root fertile 0
var $root manager $tree_1
var $root owned [$tree_1]
var $root owners [$]
var $root writable []
var $root readable ['parameters, 'methods, 'code]
var $root inited 1
var $tree parents_by_tree #[]
var $tree children_by_tree #[]