Update typing_extensions.pyi

AlexWaygood · web-flow · commit 71d9e0445bd3 · 2026-06-23T13:02:40.000+01:00
diff --git a/stdlib/typing_extensions.pyi b/stdlib/typing_extensions.pyi
@@ -143,6 +143,7 @@ __all__ = [
     "override",
     "Protocol",
     "Sentinel",
+    "sentinel",
     "reveal_type",
     "runtime",
     "runtime_checkable",
