initial istorage reference.

storage.go

@@ -0,0 +1,14 @@
+package bigcache
+
+import "io"
+
+// IStorage is used for streaming or storing the cache externally.
+type IStorage interface {
+	// Prepare is intended to be a pre-export or pre-import state which can be called to prepare the cache and/or
+	// storage implementation for saving or loading.
+	Prepare() error
+	// Save is intended to store or stream the cache in a given implementation.
+	Save(io.Writer) (bool, error)
+	// Load an external cache from storage or streaming provider.
+	Load(io.Reader) (bool, error)
+}