import { LangType } from '../theme/theme';
export declare let currentLang: LangType;
export declare let langSet: Record<string, any>;
export declare function loadLanguage(lang: LangType): Promise<boolean>;
export declare function changeLanguage(lang: LangType): Promise<void>;
export declare function onLanguageChange(callback: () => void): () => void;
export declare const isEn: () => boolean;
export declare const isZH: () => boolean;
/**
 *
 * @param key
 * @param args
 */
export declare function i18n(key: string, ...args: any[]): any;