package cache /* var ( cache sync.Map ) // Get key from cache func Get(key interface{}) (interface{}, bool) { return cache.Load(key) } // Set key-value to cache func Set(key, value interface{}) { cache.Store(key, value) } // Del delete key from cache func Del(key interface{}) { cache.Delete(key) } // Range list cache func Range(cb func(k, v interface{}) bool) { cache.Range(cb) } // */