NAME
Config::AST::Node::Null - a null node
DESCRIPTION
Implements null node - a node returned by direct retrieval if the requested node is not present in the tree.
In boolean context, null nodes evaluate to false.
METHODS
$node->is_null
Returns true.
$node->as_string
Returns the string "(null)".
$node->value
Returns undef.
SEE ALSO
Config::AST, Config::AST::Node.