/**
 * Registers a new shutdown listener to be invoked before exiting
 * the main process. Listener handlers are guaranteed to be called in the order
 * they were registered.
 * @param {BeforeShutdownListener} listener The shutdown listener to register.
 * @returns {BeforeShutdownListener} Echoes back the supplied `listener`.
 */
export declare type ShutdownHandler = (e: any) => void;
declare function beforeShutdown(listener: ShutdownHandler): ShutdownHandler;
export { beforeShutdown };