interface PruneRevalidationTableProps {
    tableName: string;
    currentBuildId: string;
}
/**
 * Given `tableName` and `currentBuildId`, query the previous build's revalidation entries
 * and delete them efficiently. Uses metadata entry to track current build ID.
 *
 * Schema:
 * - Revalidation entries: pk=buildId, sk=tag#cacheKey
 * - Metadata entry: pk="METADATA", sk="CURRENT_BUILD", buildId=currentBuildId
 */
export declare function pruneRevalidationTable(props: PruneRevalidationTableProps): Promise<void>;
export {};