/**
 * @license
 * Copyright 2026 Qwen
 * SPDX-License-Identifier: Apache-2.0
 */
import { type LiveLanguage } from './i18n/messages.js';
export declare function resolveLiveLanguage(value: unknown): LiveLanguage;
/** Help and startup errors remain readable when config is missing or invalid. */
export declare function readPreferredLiveLanguage(env?: Record<string, string | undefined>): LiveLanguage;
export declare function persistLanguagePreference(dataDir: string, value: unknown): LiveLanguage;