export declare class KeyboardListener {
    isDown: boolean;
    isUp: boolean;
    onPress?: () => void;
    onRelease?: () => void;
    remove: () => void;
    constructor(key: string);
}
export declare const Keyboard: {
    left: KeyboardListener;
    right: KeyboardListener;
    up: KeyboardListener;
    down: KeyboardListener;
    space: KeyboardListener;
};