/** Explicit advanced/extension surface. Prefer the root database API. */
import type { Collection } from './PublicCollection.js';
import type { Metadata, SearchOptions, SearchResult } from './public-api.js';
export { BatchWriter, createBatchWriter } from './storage/BatchWriter.js';
export type { BatchWriterOptions } from './storage/BatchWriter.js';
export { WriteAheadLog, WALOperationType } from './storage/WriteAheadLog.js';
export type { WALEntry } from './storage/WriteAheadLog.js';
export { WorkerPool } from './WorkerPool.js';
export { WorkerSearchState } from './SearchWorker.js';
export type { StorageBackend } from './storage/StorageBackend.js';
export { openStandaloneCollection } from './PublicCollection.js';
export type { StandaloneCollectionOptions } from './PublicCollection.js';
export type { AddConfig, QueryConfig, QueryResult } from './Collection.js';
export interface CompareSearchResult<TMetadata = Metadata> {
    approximate: SearchResult<TMetadata>;
    exact: SearchResult<TMetadata>;
    /** Fraction of exact top-limit IDs present in the approximate result. */
    recall: number;
}
/** Compare HNSW results with exact ground truth for tuning and evaluation. */
export declare function compareSearch<TMetadata = Metadata>(collection: Collection<TMetadata>, options: SearchOptions<TMetadata>): Promise<CompareSearchResult<TMetadata>>;
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