import { type LocaleCode } from './normalize-locale.js';
/** Current locale, or DEFAULT_LOCALE outside a runWithLocale scope. */
export declare function getLocale(): LocaleCode;
/** Run `fn` with a fixed locale (HTTP request / CLI session). */
export declare function runWithLocale<T>(locale: string | null | undefined, fn: () => T): T;
export declare function runWithLocaleAsync<T>(locale: string | null | undefined, fn: () => Promise<T>): Promise<T>;
/**
 * Resolve locale for an HTTP request.
 * Priority: explicit user.locale → Accept-Language → default.
 */
export declare function resolveRequestLocale(input: {
    acceptLanguage?: string | null;
    userLocale?: string | null;
    queryLocale?: string | null;
}): LocaleCode;
/** Translate with request locale (or default). */
export declare function tl(key: string, params?: Record<string, string | number | boolean | null | undefined>): string;
/** CLI: YSK_LOCALE / --locale already parsed → set process default via ALS outer run. */
export declare function localeFromEnv(env?: NodeJS.ProcessEnv): LocaleCode;
//# sourceMappingURL=request-locale.d.ts.map