import type { Options } from '../types.js';
import type { AttrChecker } from '@markuplint/ml-core';
/**
 * Checks whether the `role` attribute value refers to a role that does not exist
 * in the WAI-ARIA specification.
 *
 * Validates each token in the role attribute against the known ARIA roles list.
 * For SVG elements, the WAI-ARIA Graphics Module roles are also accepted.
 *
 * @param attr - The `role` attribute node to inspect.
 * @returns A violation if any token does not correspond to a defined ARIA role.
 */
export declare const checkingNonExistentRole: AttrChecker<boolean, Options>;