import { I18nStrings, I18nValue } from './types.js';
import type * as dispatcherNs from '@mtcute/dispatcher';
/**
 * Create an index of i18n strings delimited by "."
 *
 * @param strings  Strings object
 */
export declare function createI18nStringsIndex(strings: I18nStrings): Record<string, I18nValue>;
/**
 * Extract language from `@mtcute/dispatcher` context.
 * Can be used for customized adapters or external i18n libraries.
 *
 * @param update  Update to extract language from
 */
export declare function extractLanguageFromUpdate(update: dispatcherNs.UpdateContextType): string | null | undefined;