import { type App, type InjectionKey } from "vue";
import type { InitOptions, TFunction, i18n as I18nInstance } from "i18next";
type I18nextResourceBundleArgs = Parameters<I18nInstance["addResourceBundle"]>;
declare function addTranslations(...args: I18nextResourceBundleArgs): void;
export interface I18nContext {
    t: TFunction;
    language: string;
    changeLanguage(language: string): Promise<TFunction>;
}
declare function initI18n(params?: InitOptions): Promise<TFunction>;
export declare const i18nInjectionKey: InjectionKey<I18nContext>;
export declare function i18nPlugin(app: App): void;
declare module "@vue/runtime-core" {
    interface ComponentCustomProperties {
        $i18n: I18nContext;
    }
}
export declare const i18n: Readonly<{
    init: typeof initI18n;
    addTranslations: typeof addTranslations;
    changeLanguage: (lng?: string, callback?: import("i18next").Callback) => Promise<TFunction>;
}>;
export {};