new

 Title   : new
 Usage   :
 Function:
 Example :
 Returns : 
 Args    :

init

 Title   : init
 Usage   :
 Function:
 Example :
 Returns : 
 Args    :

depth

 Title   : depth
 Usage   :
 Function:
 Example :
 Returns : 
 Args    :

root

 Title   : root
 Usage   : $obj->root($newval)
 Function: 
 Example : 
 Returns : value of root (a scalar)
 Args    : on set, new value (a scalar or undef, optional)

new_node

 Title   : new_node
 Usage   :
 Function:
 Example :
 Returns : 
 Args    :