Fixing doc for callback for lambda (GG-25779)
Fixing callback for lambda when no return value is provided
diff --git a/Doc/library/types.rst b/Doc/library/types.rst
index 956b9e8..b3fac293 100644
--- a/Doc/library/types.rst
+++ b/Doc/library/types.rst
@@ -34,7 +34,7 @@
freshly created class namespace. It should accept the class namespace
as its sole argument and update the namespace directly with the class
contents. If no callback is provided, it has the same effect as passing
- in ``lambda ns: ns``.
+ in ``lambda ns: None``.
.. versionadded:: 3.3