import { LinkValidatorConfig } from './config';
/**
 * Check whether a link exists or not.
 *
 * @param link string url to be checked
 * @param config optional configuration to run validator as per your custom requirement
 * @returns {boolean} returns whether the given link is reachable or nots
 */
export declare function linkExists(link: string, config?: LinkValidatorConfig): Promise<boolean>;