diff --git a/generate/template.go b/generate/template.go
index b5fdf55..d927caf 100644
--- a/generate/template.go
+++ b/generate/template.go
@@ -24,13 +24,35 @@ func (v *Var_N) Set(x _T) error {
 	return ptr.Set(x)
 }
 
+func (v *Var_N) SaveSync() {
+	ptr := (*persist.Var)(unsafe.Pointer(v))
+	ptr.SaveSync()
+}
+
+func (v *Var_N) Save(sync ...bool) {
+	ptr := (*persist.Var)(unsafe.Pointer(v))
+	ptr.Save(sync...)
+}
+
+func (v *Var_N) Load(ts ...time.Time) error {
+	ptr := (*persist.Var)(unsafe.Pointer(v))
+	return ptr.Load(ts...)
+}
+
 func (v *Var_N) Get(ts ...time.Time) _T {
 	ptr := (*persist.Var)(unsafe.Pointer(v))
 	return ptr.Get(ts...).(_T)
 }
 
-func (v *Var_N) History() ([]persist.Var, error) {
+func (v *Var_N) Delete(t time.Time) {
 	ptr := (*persist.Var)(unsafe.Pointer(v))
-	return ptr.History()
+	ptr.Delete(t)
+}
+
+func (v *Var_N) History() ([]Var_N, error) {
+	ptr := (*persist.Var)(unsafe.Pointer(v))
+	h, err := ptr.History()
+	ret := (*[]Var_N)(unsafe.Pointer(&h))
+	return *ret, err
 }
 `