import { z } from 'zod';
declare const HTML_EXTENSIONS: readonly ["html", "htm"];
type HTMLExtension = (typeof HTML_EXTENSIONS)[number];
declare const HTML_EXTENSION_SCHEMA: z.ZodEnum<["html", "htm"]>;
declare function isHTMLExtension(extension: string): extension is HTMLExtension;
export { HTMLExtension, HTML_EXTENSIONS, HTML_EXTENSION_SCHEMA, isHTMLExtension };