import type { Defs } from './types.js';
/**
 * Built-in type definitions registry for HTML attribute value validation.
 *
 * Maps type identifiers to their validation logic, reference URLs,
 * and expected value descriptions. Includes definitions for common types
 * (Any, Number, URL, etc.), WHATWG-specified types (DateTime, MIMEType,
 * CustomElementName, etc.), and format-specific validators (BCP47, Pattern, etc.).
 */
export declare const defs: Defs;