import { PointCloudOctreeGeometry } from '../point-cloud-octree-geometry';
import { GetUrlFn, XhrRequest } from './types';
/**
 * Loads a Point Cloud Octree (POC) from a given URL.
 *
 * @param url - The url of the point cloud file (usually cloud.js).
 * @param getUrl - Function which receives the relative URL of a point cloud chunk file which is to be loaded and shoud return a new url (e.g. signed) in the form of a string or a promise.
 * @param xhrRequest - An arrow function for a fetch request
 * @returns An observable which emits once when the first LOD of the point cloud is loaded.
 */
export declare function loadPOC(url: string, getUrl: GetUrlFn, xhrRequest: XhrRequest): Promise<PointCloudOctreeGeometry>;