NewExpiring creates a new Expiring entry.

NewExpiringCache creates a new ExpiringCache based on the configuration If the configuration is nil, the default eviction time is 30 minutes.

ExpiringCache is a cache that expires entries after a certain time.

ExpiringCacheConfig is the configuration for the ExpiringCache.

Cacher is the interface for the cache.

Expiring is an interface for an expiring cache entry It provides a method to get the expiration time and the value.