/**
 * `useI18n()` — the component-facing accessor for translations (S13 #1418).
 *
 * Returns the active i18n store, exposing `t(key, vars)` and a reactive
 * `locale`. Safe to call outside a `Provider`: it falls back to a default store
 * that resolves through registered English defaults, so primitives stay usable
 * in isolation and in tests.
 *
 * @example
 * ```svelte
 * <script lang="ts">
 *   import { useI18n } from '@happyvertical/smrt-ui/i18n';
 *   const { t } = useI18n();
 * </script>
 * <input placeholder={t('chat.message_input.placeholder')} />
 * ```
 */
import { type I18nStore } from './context.svelte.js';
export declare function useI18n(): I18nStore;
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