import NodeCache from "node-cache";
/**
 * Store visualization data in cache and return unique viz_id
 *
 * @param data - Full API response data to cache
 * @returns Promise resolving to unique viz_id
 */
export declare function storeVizData(data: unknown): Promise<string>;
/**
 * Retrieve visualization data from cache by viz_id
 *
 * @param vizId - Unique visualization ID
 * @returns Promise resolving to cached data or undefined if not found/expired
 */
export declare function getVizData(vizId: string): Promise<unknown | undefined>;
/**
 * Delete visualization data from cache
 * Useful for cleanup after app has consumed the data
 *
 * @param vizId - Unique visualization ID
 * @returns Promise resolving to true if deleted, false if not found
 */
export declare function deleteVizData(vizId: string): Promise<boolean>;
/**
 * Get cache statistics for monitoring
 *
 * @returns Cache statistics object
 */
export declare function getCacheStats(): NodeCache.Stats;
/**
 * Clear all cached visualization data
 * Useful for testing or server shutdown
 */
export declare function clearVizCache(): void;