import { RefObject } from 'react';
/**
 * Calls a handler whenever the Escape key is pressed within an element. To capture
 * on the entire document, pass null or undefined for the ref.
 *
 * @param ref - Ref of the element to capture keystrokes in. Defaults to the document
 * @param handler - Function called if the escape key is pressed
 */
export declare function usePressEscapeHandler(ref: RefObject<HTMLElement> | null | undefined, handler: (e: KeyboardEvent) => any): void;
export default usePressEscapeHandler;