import { FC, ReactElement } from 'react';
declare type KeyboardCallback = (key: number) => void;
export interface KeyboardProps {
    /**
     * array of the keys to be trapped
     */
    keys: number[];
    /**
     * to where to attach the event handler
     */
    target?: 'children' | 'document' | 'window';
    /**
     * callbal on key down
     */
    onKeyDown: KeyboardCallback;
    /**
     * child element to the key event handler will be attached to if target = 'children'
     */
    children?: ReactElement;
}
export declare const LEFT_ARROW = 37;
export declare const UP_ARROW = 38;
export declare const RIGHT_ARROW = 39;
export declare const DOWN_ARROW = 40;
export declare const BACKSPACE = 8;
export declare const TAB = 9;
export declare const RETURN = 13;
export declare const ESC = 27;
export declare const SPACE = 32;
/**
 * Componet to monitor keystrokes. Can attach to child, document or window.
 */
export declare const Keyboard: FC<KeyboardProps>;
export {};