[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

Author: pre-commit-ci[bot]

mypy/checker.py

@@ -7127,9 +7127,7 @@ def _propagate_walrus_assignments(
             return parent_expr
         return expr
 
-    def _collect_walrus_type_map(
-        self, expr: Expression, type_map: dict[Expression, Type]
-    ) -> None:
+    def _collect_walrus_type_map(self, expr: Expression, type_map: dict[Expression, Type]) -> None:
         """Collect type narrowings from walrus assignments nested anywhere in expr.
 
         Unlike _propagate_walrus_assignments, this recurses into arbitrary