import { Zappar } from ".";
import { Pipeline } from "./pipeline";
import { WebXRWTOptions } from "./webxr-camera-source";
export declare class WebXRWorldTracker {
    private static _sharedInstance;
    static SharedInstance(): WebXRWorldTracker;
    private _latestId;
    private _wtStateById;
    private _anchorStateById;
    private _identityPose;
    private _emptyArray;
    private _getWtState;
    private _getAnchorState;
    private _getWtDataFromPipeline;
    private _getWtData;
    private _notifyOptionsUpdated;
    getCombinedOptionsForPipeline(p: Pipeline): WebXRWTOptions;
    impl: Partial<Zappar>;
}