diff --git a/types.go b/types.go
index b580bfd..797134a 100644
--- a/types.go
+++ b/types.go
@@ -3,6 +3,11 @@ package q5
 type TimerCb func (int32, *Args)
 type Args []interface{}
 
+type Module interface {
+	Init()
+	UnInit()
+}
+
 const TIMER_EXEC_EVENT = 1
 const TIMER_DELETE_EVENT = 2
 const TIMER_DESTORY_EVENT = 3