/**
 * updateMany Operation
 *
 * Updates multiple documents in a single transaction. All-or-nothing: if any
 * update fails, the entire batch is rolled back.
 *
 * Documents without a db adapter fall back to in-memory objects (no transaction).
 */
import type { BatchResult, BatchUpdateOptions, QueryableDatabaseAdapter, RevealCollectionConfig, RevealDocument } from '../../types/index.js';
export declare function updateMany(config: RevealCollectionConfig, db: QueryableDatabaseAdapter | null, options: BatchUpdateOptions): Promise<BatchResult<RevealDocument>>;
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