import { TranslationStrings, I18nOptions } from './types';
/**
 * Register a custom locale
 */
export declare function registerLocale(locale: string, translations: TranslationStrings): void;
/**
 * Initialize i18n with options
 */
export declare function initI18n(options?: I18nOptions): void;
/**
 * Get translated string for UI elements
 * @param key Dot-separated key path (e.g., 'toolbar.settings')
 * @param params Optional interpolation parameters
 */
export declare function t(key: string, params?: Record<string, string | number>): string;
/**
 * Get translated string for markdown output
 * Respects translateOutput flag - returns English if false
 * @param key Dot-separated key path (e.g., 'output.location')
 * @param params Optional interpolation parameters
 */
export declare function tOutput(key: string, params?: Record<string, string | number>): string;
/**
 * Get the current locale's translations (for testing/debugging)
 */
export declare function getCurrentTranslations(): TranslationStrings;
/**
 * Check if translateOutput is enabled
 */
export declare function isOutputTranslationEnabled(): boolean;
/**
 * Reset i18n to default state (useful for testing)
 */
export declare function resetI18n(): void;
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