From 9a73bb86db59de1e12426fec81dcdb7f3bb9be7b Mon Sep 17 00:00:00 2001
From: Richard Si <63936253+ichard26@users.noreply.github.com>
Date: Thu, 18 Nov 2021 22:20:44 -0500
Subject: [PATCH] Fix mypyc compat issue w/ AST safety check (GH-2628)

I can't wait for when we drop Python 2 support FWIW :)
---
 src/black/parsing.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/black/parsing.py b/src/black/parsing.py
index 504e20be002..32cfa5239f1 100644
--- a/src/black/parsing.py
+++ b/src/black/parsing.py
@@ -169,6 +169,7 @@ def stringify_ast(
 
     yield f"{'  ' * depth}{node.__class__.__name__}("
 
+    type_ignore_classes: Tuple[Type[Any], ...]
     for field in sorted(node._fields):  # noqa: F402
         # TypeIgnore will not be present using pypy < 3.8, so need for this
         if not (_IS_PYPY and sys.version_info < (3, 8)):