import { z } from 'zod';

declare const TYPESCRIPT_EXTENSIONS: readonly ["cts", "ts", "mts"];
type TypeScriptExtension = (typeof TYPESCRIPT_EXTENSIONS)[number];
declare const TYPESCRIPT_EXTENSION_SCHEMA: z.ZodEnum<["cts", "ts", "mts"]>;
declare function isTypeScriptExtension(extension: string): extension is TypeScriptExtension;

export { TYPESCRIPT_EXTENSIONS, TYPESCRIPT_EXTENSION_SCHEMA, TypeScriptExtension, isTypeScriptExtension };