use easy_tree::Tree;
fn main() {
let mut tree = Tree::new();
let root = tree.add_node("root");
let child = tree.add_child(root, "child");
let grandchild = tree.add_child(child, "grandchild");
assert_eq!(tree.get(root), Some(&"root"));
assert_eq!(tree.get(grandchild), Some(&"grandchild"));
}