import type { SearchEngine } from '../../app/search-engine/search-engine.js';
import type { QueryTrigger } from '../core/triggers/headless-core-query-trigger.js';
/**
 * Creates a `QueryTrigger` controller instance.
 *
 * @param engine - The headless engine.
 * @returns A `QueryTrigger` controller instance.
 *
 * @group Controllers
 * @category QueryTrigger
 * */
export declare function buildQueryTrigger(engine: SearchEngine): QueryTrigger;