import { a as SearchResult, F as FusedResult, S as ScoredChunk } from '../types-BP5OmxBy.js';
export { R as RankedResult } from '../types-BP5OmxBy.js';

/**
 * Reciprocal Rank Fusion (RRF) — merges multiple ranked result lists
 * into a single ranking using the formula: score = sum(1 / (k + rank))
 *
 * This is a standard technique for combining results from different
 * search systems (e.g., vector search + BM25 full-text search).
 *
 * @param resultSets - Array of result sets, each with a label and ranked results
 * @param k - Smoothing constant (default: 60, as per the original RRF paper)
 * @returns Fused results sorted by combined score (highest first)
 */
declare function reciprocalRankFusion(resultSets: Array<{
    label: string;
    results: SearchResult[];
}>, k?: number): FusedResult[];

/**
 * Deduplicate and merge overlapping chunks from the same file.
 *
 * When hybrid search + reranking returns multiple chunks from the same file
 * with overlapping line ranges, merge them into a single contiguous block
 * to avoid redundancy in the LLM context window.
 */
declare function deduplicateChunks(chunks: ScoredChunk[]): ScoredChunk[];

export { FusedResult, ScoredChunk, SearchResult, deduplicateChunks, reciprocalRankFusion };