import { Effects } from '../../../../base/lib/types';
import { HealthCheckResult } from './HealthCheckResult';
import 'isomorphic-fetch';
/**
 * This is a helper function to check if a web url is reachable.
 * @param url
 * @param createSuccess
 * @returns
 */
export declare const checkWebUrl: (effects: Effects, url: string, { timeout, successMessage, errorMessage, }?: {
    timeout?: number | undefined;
    successMessage?: string | undefined;
    errorMessage?: string | undefined;
}) => Promise<HealthCheckResult>;
