import React from "react";
/**
 * Only "zh" (Simplified Chinese) / "en" (English) are supported now.
 * CAVEAT:
 *
 * We do not store Locale into application context (or store).
 * So that we can access locale info anywhere in the code, as well as performance.
 *
 * Page refresh is required if you want to switch language.
 */
export type Locale = "zh" | "en";
export declare const LocaleContext: React.Context<Locale>;
declare class LocaleManager {
    private readonly storageKey;
    private locale;
    setInitial(locale: Locale | "auto"): Promise<void>;
    change(locale: Locale): void;
    current(): Locale;
    private preferredLocale;
}
export declare const LocaleUtil: LocaleManager;
export {};