/**
 * Search suggestions service
 *
 * Generates helpful suggestions when a search returns no results.
 */
import { type TopicId } from '../constants.js';
/**
 * Search suggestion result
 */
export interface SearchSuggestions {
    simplifiedQuery: string | null;
    alternativeKeywords: string[];
    suggestedTopics: {
        id: TopicId;
        name: string;
    }[];
    tips: string[];
}
/**
 * Generate search suggestions for a query that returned no results
 */
export declare function generateSearchSuggestions(query: string, hasProductFilter?: boolean, hasTopicFilter?: boolean): SearchSuggestions;
/**
 * Format search suggestions as markdown
 */
export declare function formatSearchSuggestions(query: string, suggestions: SearchSuggestions): string;
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