import { Language } from "./language";
import { Formatter } from "./interpolation";
import { I18nContext } from "./context";
export declare class I18n implements I18nContext {
    constructor(options: I18n.Options);
    private readonly _clients;
    private readonly _languageFactory;
    private readonly _updateHandlers;
    private readonly _languages;
    private _language;
    readonly formatters: Map<any, Formatter>;
    readonly T: I18nContext.T;
    readonly TX: I18nContext.TX;
    get languages(): ReadonlyMap<string, Language>;
    get language(): Language | null;
    setLanguage(name: string): Promise<void>;
    setLanguageAuto(names: string[], fallback: string): Promise<void>;
    addResources(name: string, resources: Language.Resources): void;
    update(): void;
    addUpdateHandler(handler: I18n.UpdateHandler): void;
    removeUpdateHandler(handler: I18n.UpdateHandler): void;
    addClient(client: I18n.Client): void;
    removeClient(client: I18n.Client): void;
}
export declare namespace I18n {
    interface Options extends I18nContext.Options {
        readonly clients?: Client[];
        readonly languageFactory?: LanguageFactory;
        readonly setLangAttribute?: boolean;
    }
    type LanguageFactory = (controller: I18n, name: string, resources?: Language.Resources) => Language;
    type UpdateHandler = (controller: I18n) => void;
    interface Client {
        fetchResources(controller: I18n, language: string): Promise<void>;
    }
}