import { KlevuFetchModifer } from "../index.js";
/**
 * Enables AB test functionality. This will make extra request to Klevu servers and it is recommended only if you wish to use A/B testing feature.
 *
 * Currently not supported in server side rendering.
 *
 * @category Modifier
 * @returns
 */
export declare function abTest(): KlevuFetchModifer;