[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

@@ -3318,13 +3318,17 @@ def check_assignment(
                     resolved_type = None
 
                     def can_resolve_partial(lvalue_type, proper_rvalue_type):
-                        return lvalue_type.type is None and not isinstance(proper_rvalue_type, NoneType)
+                        return lvalue_type.type is None and not isinstance(
+                            proper_rvalue_type, NoneType
+                        )
 
                     def set_node_type(lvalue, typ):
                         if getattr(lvalue, "node", None) and hasattr(lvalue.node, "type"):
                             lvalue.node.type = typ
 
-                    if isinstance(lvalue_type, PartialType) and can_resolve_partial(lvalue_type, proper_rvalue_type):
+                    if isinstance(lvalue_type, PartialType) and can_resolve_partial(
+                        lvalue_type, proper_rvalue_type
+                    ):
                         resolved_type = make_simplified_union([proper_rvalue_type, NoneType()])
                     elif lvalue_type.type is not None and isinstance(proper_rvalue_type, Instance):
                         if rvalue_type.type == lvalue_type.type:
@@ -3339,7 +3343,7 @@ def set_node_type(lvalue, typ):
                             lvalue,
                         )
                     return
-                    
+
                 else:
                     # Hacky special case for assigning a literal None
                     # to a variable defined in a previous if