export type KeyboardKey = string;
export declare class Keyboard {
    private keysPressed;
    private keysDown;
    private keysUp;
    private _blockBrowserShortcuts;
    set blockBrowserShortcuts(value: boolean);
    constructor();
    private handleKeyDown;
    private handleKeyUp;
    getKeyPressed: (key: KeyboardKey) => boolean;
    getKeyDown: (key: KeyboardKey) => boolean;
    getKeyUp: (key: KeyboardKey) => boolean;
    getAllPressedKeys: () => Set<string>;
    frame: () => void;
}
export declare const keyboard: Keyboard;