diff --git a/atom/meta/annotation_utils.py b/atom/meta/annotation_utils.py
index 4f20c404..969cb9e4 100644
--- a/atom/meta/annotation_utils.py
+++ b/atom/meta/annotation_utils.py
@@ -44,6 +44,7 @@ def generate_member_from_type_or_generic(
 ) -> Member:
     """Generate a member from a type or generic alias."""
     # Here we special case Literal to generate an Enum member.
+    types: tuple[type, ...]
     if get_origin(type_generic) is Literal:
         types = ()
     else:
diff --git a/tests/test_atom_from_annotations.py b/tests/test_atom_from_annotations.py
index 6ab40336..4e3aafa6 100644
--- a/tests/test_atom_from_annotations.py
+++ b/tests/test_atom_from_annotations.py
@@ -303,7 +303,6 @@ class A(Atom, use_annotations=True, type_containers=depth):
         (dict, Dict, {1: 2}),
         (defaultdict, DefaultDict, defaultdict(int, {1: 2})),
         (Literal[1, 2, "a"], Enum, 2),
-
     ],
 )
 def test_annotations_with_default(annotation, member, default):
diff --git a/tests/test_typing_utils.py b/tests/test_typing_utils.py
index 4cd1bfb6..6d857a17 100644
--- a/tests/test_typing_utils.py
+++ b/tests/test_typing_utils.py
@@ -79,6 +79,7 @@ def test_reject_str_annotations():
     with pytest.raises(TypeError):
         extract_types("int")
 
+
 def test_reject_literal():
     with pytest.raises(TypeError):
         extract_types(Literal[1])