Imports github.com/allegro/bigcache github.com/bradfitz/gomemcache/memcache github.com/coocood/freecache github.com/dgraph-io/ristretto github.com/dgrijalva/lfu-go github.com/golang/groupcache github.com/hashicorp/golang-lru github.com/patrickmn/go-cache Standard library imports context flag log net/http net/rpc strconv sync time