import Node from "./Node";
import Func from "./Func";
import Predicate from "./Predicate";
import Action from "./Action";
import LayoutState from "./LayoutState";
export default class BoxTree {
    Root: Node | null;
    Nodes: Map<number, Node>;
    Depth: number;
    IterateChildFirst(func: Func<Node, boolean>): boolean;
    IterateParentFirst(enter: Predicate<Node>, exit?: Action<Node>): void;
    UpdateHierarchyStats(): void;
    constructor();
    static Build(state: LayoutState): BoxTree;
}