Major fixes and new features

venv/lib/python3.12/site-packages/mypy/state.py

@@ -0,0 +1,28 @@
+from __future__ import annotations
+
+from contextlib import contextmanager
+from typing import Final, Iterator
+
+# These are global mutable state. Don't add anything here unless there's a very
+# good reason.
+
+
+class StrictOptionalState:
+    # Wrap this in a class since it's faster that using a module-level attribute.
+
+    def __init__(self, strict_optional: bool) -> None:
+        # Value varies by file being processed
+        self.strict_optional = strict_optional
+
+    @contextmanager
+    def strict_optional_set(self, value: bool) -> Iterator[None]:
+        saved = self.strict_optional
+        self.strict_optional = value
+        try:
+            yield
+        finally:
+            self.strict_optional = saved
+
+
+state: Final = StrictOptionalState(strict_optional=False)
+find_occurrences: tuple[str, str] | None = None