import { Object3D } from 'three';
import { IPointCloudTreeNode } from './types';
/**
 * Represents a point cloud tree structure.
 */
export declare class PointCloudTree extends Object3D {
    /**
     * The root node of the point cloud tree.
     */
    root: IPointCloudTreeNode | null;
    /**
     * Checks if the point cloud tree has been initialized.
     *
     * @returns Returns true if the tree has been initialized (i.e., root is not null), false otherwise.
     */
    initialized(): boolean;
}