fix a usage issue here

diff --git a/examples/custom_attributes/custom_management.py b/examples/custom_attributes/custom_management.py
index 644d512cf749c4de60b988bb2c854c782619afb3..50b65a37ee271869b09f79c30ca3ba110d30899d 100644 (file)
--- a/examples/custom_attributes/custom_management.py
+++ b/examples/custom_attributes/custom_management.py
@@ -103,6 +103,9 @@ class MyCollectionAdapter(object):
     def append_with_event(self, item, initiator=None):
         self.collection.add(item, emit=initiator)
 
+    def append_multiple_without_event(self, items):
+        self.collection.members.extend(items)
+
     def append_without_event(self, item):
         self.collection.add(item, emit=False)