diff -r 2e9e62242451 -r 278af66e6595 mercurial/linelog.py
--- a/mercurial/linelog.py	Tue Jul 23 19:14:16 2024 -0400
+++ b/mercurial/linelog.py	Tue Jul 23 19:20:22 2024 -0400
@@ -28,6 +28,12 @@
 )
 
 from .thirdparty import attr
+
+# Force pytype to use the non-vendored package
+if typing.TYPE_CHECKING:
+    # noinspection PyPackageRequirements
+    import attr
+
 from . import pycompat
 
 _llentry = struct.Struct(b'>II')