iter-list.go: implemented the Typer interface

iter-list.go

@@ -85,6 +85,10 @@ func (it *ListIterator) String() string {
 	return fmt.Sprintf("$(#%d)", l)
 }
 
+func (it *ListIterator) TypeName() string {
+	return "ListIterator"
+}
+
 func (it *ListIterator) HasOperation(name string) bool {
 	yes := name == resetName || name == indexName || name == countName
 	return yes

iterator.go

@@ -22,6 +22,7 @@ const (
 )
 
 type Iterator interface {
+	Typer
 	Next() (item any, err error) // must return io.EOF after the last item
 	Current() (item any, err error)
 	Index() int