/**
 * Core i18n factory function.
 * @module bquery/i18n
 */
import type { I18nConfig, I18nInstance } from './types';
/**
 * Creates a reactive internationalization instance.
 *
 * The returned object provides:
 * - `$locale` — a reactive signal for the current locale
 * - `t()` — translation with interpolation and pluralization
 * - `tc()` — reactive translation that auto-updates on locale change
 * - `loadLocale()` — register lazy-loaded locale files
 * - `n()` — locale-aware number formatting
 * - `d()` — locale-aware date formatting
 *
 * @param config - Initial configuration
 * @returns An i18n instance
 *
 * @example
 * ```ts
 * import { createI18n } from '@bquery/bquery/i18n';
 *
 * const i18n = createI18n({
 *   locale: 'en',
 *   fallbackLocale: 'en',
 *   messages: {
 *     en: {
 *       greeting: 'Hello, {name}!',
 *       items: '{count} item | {count} items',
 *     },
 *     de: {
 *       greeting: 'Hallo, {name}!',
 *       items: '{count} Gegenstand | {count} Gegenstände',
 *     },
 *   },
 * });
 *
 * i18n.t('greeting', { name: 'Ada' }); // 'Hello, Ada!'
 * i18n.t('items', { count: 3 });       // '3 items'
 *
 * // Switch locale reactively
 * i18n.$locale.value = 'de';
 * i18n.t('greeting', { name: 'Ada' }); // 'Hallo, Ada!'
 * ```
 */
export declare const createI18n: (config: I18nConfig) => I18nInstance;
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