import { Observable } from 'rxjs';
import { GameStateService } from '../../game-state/game-state.service';
export declare class CommandsIOKeyboard {
    private gameState;
    constructor(gameState: GameStateService);
    flushKeys(): Observable<void>;
    getKey(): Observable<number>;
    input(message?: string): Observable<string>;
    keyDown(code: number): Observable<boolean>;
    keyHit(code: number): Observable<number>;
    keyWait(): Observable<number>;
    waitKey(): Observable<number>;
}