import { ViewerManagerBase } from "./viewerManagerBase";
import { Viewer } from "../viewer";
import { WorkPromise } from "./promiseManager";
export declare class UpdateManager extends ViewerManagerBase {
    private stateList;
    private processingStateList;
    constructor(viewer: Viewer);
    update<T>(func: (params?: any) => T, priority?: number, params?: any): WorkPromise<T>;
    updateStates(): boolean;
    hasState(func: (params?: any) => any): boolean;
}