Description:

The Tree::Nary class implements N-ary trees (trees of data with any
number of branches), providing the organizational structure for a tree
(collection) of any number of nodes, but knowing nothing about the
specific type of node used. It can be used to display hierarchical
database entries in an internal application (the NIS netgroup file is an
example of such a database). It offers the capability to select nodes on
the tree, and attachment points for nodes on the tree. Each attachment
point can support multiple child nodes.