import { Viewer } from "cesium";
export default class ScreenSpaceActions {
    private screenSpaceEventHandler;
    private handlers;
    private readonly viewer;
    constructor(viewer: Viewer);
    /**
     * @param action: the action to be performed when the event is triggered.
     * @param priority?: the priority of the handler, which results to its position in the call stash. Default 0.
     * @param stopPropagation?: whether the handler should stop the event from propagating to the next handlers. Default false.
     * @param type: the type of the event to bind the handler to.
     */
    addEventHandler(action: (...event: any[]) => any, type: number, stopPropagation?: boolean, priority?: number): void;
    removeEventHandler(action: (...event: any[]) => any, type: number): void;
    private updateEventListeners;
}