import type { HighlightLanguage } from '../HighlightExtended.js';
/**
 * List of supported languages and their respective file extensions of the CodeSnippet.
 * @internal
 */
export declare const LANGUAGE_EXTENSION_MAP: Record<HighlightLanguage, string>;
/**
 * Derives the file extension (including the leading dot) for a given highlight
 * language. We fall back to `.txt` when the language has no direct file-extension
 * convention, when it isn't part of the map at all, or when no language is given.
 * @param language - The syntax-highlighting language of the snippet, if it's set.
 * @internal
 */
export declare function getFileExtension(language?: HighlightLanguage): string;
/**
 * Resolves the file name to use when downloading the snippet.
 * Falls back to `code-snippet.<ext>` when `fileName` is omitted or produces
 * an empty name after sanitization.
 * @param fileName - Consumer-provided file name, with or without an extension.
 * @param language - The snippet's highlight language, used to derive the extension
 *   when `fileName` carries none or when sanitization results in an empty extension.
 * @internal
 */
export declare function resolveDownloadFileName(fileName: string | undefined, language: HighlightLanguage | undefined): string;
//# sourceMappingURL=download-utils.d.ts.map