HNKCacheEntity > HNKFetcher
HNKSimpleEntity > HNKSimpleFetcher
HNKDiskEntity > HNKDiskFetcher
HNKNetworkEntity > HNKNetworkFetcher
Fetcher -> Entity in HNKCache
Fetcher -> Entity in tests
Fetcher -> Entity in tests
Fetcher -> Entity in UIButton category
Fetcher -> Entity in UIImageView category