/** * @license * Copyright Google Inc. All Rights Reserved. * * Use of this source code is governed by an MIT-style license that can be * found in the LICENSE file at https://angular.io/license */ export declare class Tree<T> { constructor(root: TreeNode<T>); readonly root: T; } export declare class TreeNode<T> { value: T; children: TreeNode<T>[]; constructor(value: T, children: TreeNode<T>[]); toString(): string; }