import type { CacheMetadataKey, CacheMetadataRepository } from "../../db/repositories/cacheMetadata.repository";
/**
 * Functional accessors over the cache_metadata table. Repositories give us
 * the SQL surface; these helpers give us the verbs the services use.
 */
export declare function getCacheMetadata(repo: CacheMetadataRepository, key: CacheMetadataKey): string | null;
export declare function setCacheMetadata(repo: CacheMetadataRepository, key: CacheMetadataKey, value: string): void;
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