diff --git a/packages/python-packages/api-stub-generator/tests/class_parsing_test.py b/packages/python-packages/api-stub-generator/tests/class_parsing_test.py
index a5b81680e1a..815b2a95f6f 100644
--- a/packages/python-packages/api-stub-generator/tests/class_parsing_test.py
+++ b/packages/python-packages/api-stub-generator/tests/class_parsing_test.py
@@ -110,9 +110,9 @@ def test_overloads(self):
         assert node1.name == "double"
         self._check_arg_nodes(node1.args, [
             ("self", None, None),
-            ("input", "Optional[int]", "1"),
+            ("input", "int", "1"),
             ("*", None, None),
-            ("test", "Optional[bool]", "False"),
+            ("test", "bool", "False"),
             ("**kwargs", None, None)
         ])
         assert node1.return_type == "int"
@@ -122,9 +122,9 @@ def test_overloads(self):
         assert node2.name == "double"
         self._check_arg_nodes(node2.args, [
             ("self", None, None),
-            ("input", "Optional[Sequence[int]]", "[1]"),
+            ("input", "Sequence[int]", "[1]"),
             ("*", None, None),
-            ("test", "Optional[bool]", "False"),
+            ("test", "bool", "False"),
             ("**kwargs", None, None)
         ])
         assert node2.return_type == "list[int]"
@@ -138,7 +138,7 @@ def test_overloads(self):
             # don't appear in the actual APIView.
             ("input", "int | collections.abc.Sequence[int]", None),
             ("*", None, None),
-            ("test", "Optional[bool]", "False"),
+            ("test", "bool", "False"),
             ("**kwargs", None, None)
         ])
         assert node3.return_type == "int | list[int]"
diff --git a/packages/python-packages/api-stub-generator/tests/function_parsing_test.py b/packages/python-packages/api-stub-generator/tests/function_parsing_test.py
index 04f01d90381..98e673fe692 100644
--- a/packages/python-packages/api-stub-generator/tests/function_parsing_test.py
+++ b/packages/python-packages/api-stub-generator/tests/function_parsing_test.py
@@ -107,7 +107,7 @@ def test_complex_typehints(self):
 
 
     def test_non_typehint_with_string_defaults(self):
-        func_node = FunctionNode("test", None, TypeHintingClient.some_method_non_optional, "test")
+        func_node = FunctionNode("test", None, obj=TypeHintingClient.some_method_non_optional)
         arg1 = func_node.args["docstring_type"]
         assert arg1.argtype == "str"
         assert arg1.default == "string"
@@ -115,7 +115,7 @@ def test_non_typehint_with_string_defaults(self):
         assert arg2.argtype == "str"
         assert arg2.default == "string"
 
-        func_node = FunctionNode("test", None, TypeHintingClient.some_method_with_optionals, "test")
+        func_node = FunctionNode("test", None, obj=TypeHintingClient.some_method_with_optionals)
         arg1 = func_node.args["labeled_optional"]
         assert arg1.argtype == "Optional[str]"
         assert arg1.default == "string"
diff --git a/packages/python-packages/apistubgentest/apistubgentest/models/_models.py b/packages/python-packages/apistubgentest/apistubgentest/models/_models.py
index 94fa3d0bf4c..7773023ed84 100644
--- a/packages/python-packages/apistubgentest/apistubgentest/models/_models.py
+++ b/packages/python-packages/apistubgentest/apistubgentest/models/_models.py
@@ -184,7 +184,7 @@ def double(self, input: int = 1, *, test: bool = False, **kwargs) -> int:
     def double(self, input: Sequence[int] = [1], *, test: bool = False, **kwargs) -> list[int]:
         ...
 
-    async def double(self, input: int | Sequence[int], *, test: bool = False, **kwargs) -> int | list[int]:
+    def double(self, input: int | Sequence[int], *, test: bool = False, **kwargs) -> int | list[int]:
         if isinstance(input, Sequence):
             return [i * 2 for i in input]
         return input * 2