Fix missing import in dataclass code snippet (GH-29214)

field was not imported. It has been added now.

diff --git a/Doc/whatsnew/3.10.rst b/Doc/whatsnew/3.10.rst
index 806170ede15964079475b980ec5aeb93c1a825bb..905305be3176cb7fa852c3e2169a662ef2dea907 100644 (file)
--- a/Doc/whatsnew/3.10.rst
+++ b/Doc/whatsnew/3.10.rst
@@ -1019,7 +1019,7 @@ You can specify keyword-only on a per-field basis:
 
 .. code-block:: python
 
-    from dataclasses import dataclass
+    from dataclasses import dataclass, field
 
     @dataclass
     class Birthday: