import { type DateHint, type Vertical } from './intent-router.js';
export interface QueryUnderstanding {
    intent: Vertical;
    entities: string[];
    date_hint: DateHint | null;
    language: string;
    is_brand_collision_prone: boolean;
    rewrites: string[];
    compound_terms: string[];
}
export interface BuildQUOptions {
    category?: Vertical;
    language?: string;
    rewrites?: string[];
    now?: Date;
}
export declare function extractEntities(query: string): string[];
export declare function buildQueryUnderstanding(query: string, opts?: BuildQUOptions): QueryUnderstanding;
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