import { IndexItem, SectionRecord } from './types';
/** A scoring function pair built against a fixed corpus's document-frequency statistics */
export interface SearchScorer {
    scoreItem(item: IndexItem, query: string): number;
    scoreSection(section: SectionRecord, query: string): number;
}
/**
 * Builds an IDF-weighted scorer over a fixed corpus.
 *
 * Document frequency is computed lazily per token and cached for the lifetime of the
 * returned scorer, so a common token like "a" contributes almost nothing to a match while
 * a rare token like "zod" dominates it. Callers should rebuild the scorer whenever `index`
 * or `sections` actually change.
 */
export declare function createSearchScorer(index: IndexItem[], sections: SectionRecord[]): SearchScorer;
/** Returns names close enough to a failed lookup to be worth suggesting */
export declare function suggestNames(index: IndexItem[], query: string, limit?: number): string[];