import type { BetterSqlite3Database } from '../../types.js';
/**
 * Check whether the co_changes table has data.
 */
export declare function hasCoChanges(db: BetterSqlite3Database): boolean;
/**
 * Get all co-change metadata as a key-value map.
 */
export declare function getCoChangeMeta(db: BetterSqlite3Database): Record<string, string>;
/**
 * Upsert a co-change metadata key-value pair.
 */
export declare function upsertCoChangeMeta(db: BetterSqlite3Database, key: string, value: string): void;
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