core.cache is a Clojure library that provides implementations of basic
 caching strategies such as:
 .
  * First-in-first-out (FIFOCache)
  * Least-recently-used (LRUCache)
  * Least-used (LUCache -- sometimes called Least Frequently Used)
  * Time-to-live (TTLCache)
  * Naïve cache (BasicCache)
  * Naïve cache backed with soft references (SoftCache)
  * Low inter-reference recency set algorithm (LIRSCache)
 .
 All implementation use a common base abstraction (CacheProtocol) which, in
 combination with suitable macros, allows for the easy integration of user
 defined caching strategies that hook into the Clojure associative data
 capabilities.