import { I18nMiddleware, I18nOptions } from './types';
export declare class I18n<Ex extends any[] = []> {
    private options;
    constructor(options: I18nOptions);
    locales: Set<string>;
    defaultLocale: string;
    private mw;
    middleware(mw: I18nMiddleware<Ex>, prior?: boolean): this;
    removeMiddleware(mw: I18nMiddleware<Ex>): this;
    getExactLocale(locale: string): string;
    private buildFallbackChain;
    private applyMiddlewares;
    translateString(locale: string, text: string, ...ex: Ex): Promise<string>;
    translate<T>(locale: string, obj: T, ...ex: Ex): Promise<T>;
}