/**
 * Apply timeout to a cache operation
 * @param promise Promise to apply timeout to
 * @param operationName Name of the operation for logging
 * @param tierIndex Index of the cache tier
 * @param timeout Timeout in milliseconds
 * @returns Promise with timeout applied
 */
export declare function applyTimeout<T>(promise: Promise<T>, operationName: string, tierIndex: number, timeout?: number): Promise<T>;
//# sourceMappingURL=utils.d.ts.map