import { Observable } from 'rxjs';
import { Language } from '../types';
import * as i0 from "@angular/core";
declare const defaultTranslations: {
    readonly ChatIntroMessage: "";
    readonly BabylaiTitle: "";
    readonly BabylaiDescription: "";
    readonly ChatNow: "";
    readonly TryBableAI: "";
    readonly ContactUs: "";
    readonly PickTopicTitle: "";
    readonly BabylAI: "";
    readonly ChatPlaceholder: "";
    readonly PoweredByBabylAI: "";
    readonly EndChat: "";
    readonly LeavingDialogTitle: "";
    readonly LeavingDialogBody: "";
    readonly Confirm: "";
    readonly Cancel: "";
    readonly title: "";
};
export type TranslationKey = keyof typeof defaultTranslations;
export declare class TranslationService {
    private translations;
    private _currentLang;
    readonly currentLang: Observable<Language>;
    constructor();
    translate(key: TranslationKey): string;
    setLanguage(lang: Language): void;
    getCurrentLang(): Language;
    static ɵfac: i0.ɵɵFactoryDeclaration<TranslationService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<TranslationService>;
}
export {};