NewLRU creates a new LRU cache with default options.

NewLRUWithOptions creates a new LRU cache with the given options.

LRU is a concurrent fixed size cache that evicts elements in LRU order as well as by TTL.

Options control the behavior of the cache.

A Cache is a generalized interface to a cache.

EvictCallback is a type for notifying applications when an item is scheduled for eviction from the Cache.