Stream-decode msgpack responses instead of waiting for read timeout

lib/transport/transport.go

@@ -1,9 +1,13 @@
 package transport
 
-import "time"
+import (
+	"io"
+	"time"
+)
 
 type Transport interface {
 	Send(data []byte) error
-	Receive(timeout time.Duration) ([]byte, error)
+	SetReadTimeout(timeout time.Duration)
+	Reader() io.Reader
 	Close() error
 }