cache := localcache.NewLocalCache( localcache.WithCapacity(1024), // WithShardCount set max Capacity localcache.WithShardCount(256),// WithShardCount shardCnt must be a power of 2 localcache.WithGlobalTTL(120), // WithGlobalTTL set all keys default expire time of seconds localcache.WithStatist(true), // WithStatist set whether need to caculate the cache stastic localcache.WithPolicy(localcache.PolicyTypeLRU), // WithPolicy set the elimination policy of key	) // Get a key and return the value and if the key exists	cache.Get(key string) (interface{}, bool) // GetOrLoad get a key, while key not exists, call f() to load data, and will set the load data to cache. // Load data process will called singleFlight called  cache.GetOrLoad(key string, f LoadFunc) (interface{}, error) // Set a key-value with default seconds to live cache.Set(key string, value interface{}) // SetWithExpire set a key-value with seconds to live cache.SetWithExpire(key string, value interface{}, ttl int64) // Del delete key and return if the key exists	cache.Del(key string) bool // Len return count of keys in cache cache.Len() int // Flush clear all keys in chache, should do this when set and del is stop cache.Flush() // Stop the cacheProcess by close stopChan cache.Stop() // Statistic return cache Statics {"hit":1, "miss":1, "hitRate":50.0} Statistic() map[string]interface{}