/**
* Decorator that sets the cache ttl setting the duration for cache expiration.
*
* For example: `@CacheTTL(5)`
*
* @param ttl number set the cache expiration time
*
* @see [Caching](https://docs.nestjs.com/techniques/caching)
*
* @publicApi
*/
export declare const CacheTTL: (ttl: number) => import("../../decorators").CustomDecorator<string>;