Hash returns a hash of the given struct.

NewCache initializes a new caching space with default settings.

NewCacheWithCapacity initializes a new caching space with the given capacity.

String returns a Hashable that produces a hash equal to the given string.

Cache holds a map of volatile key -> values.

Hashable types must implement a method that returns a key.

HasOnPurge type is (optionally) implemented by cache objects to clean after themselves.