diff -r 2e9e62242451 -r 278af66e6595 mercurial/wireprotoframing.py
--- a/mercurial/wireprotoframing.py	Tue Jul 23 19:14:16 2024 -0400
+++ b/mercurial/wireprotoframing.py	Tue Jul 23 19:20:22 2024 -0400
@@ -12,9 +12,16 @@
 
 import collections
 import struct
+import typing
 
 from .i18n import _
 from .thirdparty import attr
+
+# Force pytype to use the non-vendored package
+if typing.TYPE_CHECKING:
+    # noinspection PyPackageRequirements
+    import attr
+
 from . import (
     encoding,
     error,