cache

type Key = lru.Key

type LRUCache interface {
	// Add adds a value to the cache.
	Add(key Key, value interface{})
	// Get looks up a key's value from the cache.
	Get(key Key) (interface{}, bool)
	// Remove removes the provided key from the cache.
	Remove(key Key)
	// RemoveOldest removes the oldest item from the cache.
	RemoveOldest()
	// Len returns the number of items in the cache.
	Len() int
	// Clear purges all stored items from the cache.
	Clear()
	// Range call f on every key
	Range(f func(key Key, value interface{}) bool)
}