import type { IKeyboard, IKeyDownEvent } from '../../../abstraction';
import { EventBase } from '../../../dom';
export declare class KeyDownEvent extends EventBase<IKeyboard> implements IKeyDownEvent {
    static readonly TYPE: string;
    private _code;
    private _target?;
    constructor(data: IKeyboard, code: string, target?: EventTarget | null);
    get code(): string;
    get target(): EventTarget | null | undefined;
}