import { i18n as i18nInterface, InitOptions, TFunction } from "i18next";
/**
 * Initialize i18next with file system backend, or when `LOCIZE_PROJECTID` is set,
 * with the locize backend.
 */
export declare const init: (languages: string[], options?: InitOptions) => Promise<void>;
export declare const i18n: i18nInterface;
/**
 * Returns an `TFunction` instance.
 */
export declare const getFixedT: (lng: string | string[], ns?: string | string[]) => TFunction;
/**
 * Returns an `TFunction` instance.
 * Deprecated. I18n.getFixedT should be used for example.
 */
export declare const changeLanguage: (lng: string) => Promise<TFunction>;
/**
 * Get translations in all languages for a specific key. This
 * can be used to set values of type `TranslatedText`.
 */
export declare const tAll: (key: string, defaultValue?: string) => {
    [k: string]: string;
};