diff --git a/openapi_python_client/parser/properties/__init__.py b/openapi_python_client/parser/properties/__init__.py
index 9a1e050e8..94c6e3d08 100644
--- a/openapi_python_client/parser/properties/__init__.py
+++ b/openapi_python_client/parser/properties/__init__.py
@@ -137,7 +137,7 @@ def _property_from_ref(
     return prop, schemas
 
 
-def property_from_data(  # noqa: PLR0911
+def property_from_data(  # noqa: PLR0911, PLR0912
     name: str,
     required: bool,
     data: oai.Reference | oai.Schema,
diff --git a/openapi_python_client/parser/properties/merge_properties.py b/openapi_python_client/parser/properties/merge_properties.py
index aaf5c8d1f..3259bcc62 100644
--- a/openapi_python_client/parser/properties/merge_properties.py
+++ b/openapi_python_client/parser/properties/merge_properties.py
@@ -34,7 +34,7 @@
 STRING_WITH_FORMAT_TYPES = (DateProperty, DateTimeProperty, FileProperty)
 
 
-def merge_properties( # noqa:PLR0911
+def merge_properties(  # noqa:PLR0911
     prop1: Property,
     prop2: Property,
     parent_name: str,
@@ -83,7 +83,9 @@ def merge_properties( # noqa:PLR0911
     )
 
 
-def _merge_same_type(prop1: Property, prop2: Property, parent_name: str, config: Config) -> Property | None | PropertyError:
+def _merge_same_type(
+    prop1: Property, prop2: Property, parent_name: str, config: Config
+) -> Property | None | PropertyError:
     if type(prop1) is not type(prop2):
         return None
 
@@ -105,7 +107,9 @@ def _merge_same_type(prop1: Property, prop2: Property, parent_name: str, config:
     return _merge_common_attributes(prop1, prop2)
 
 
-def _merge_models(prop1: ModelProperty, prop2: ModelProperty, parent_name: str, config: Config) -> Property | PropertyError:
+def _merge_models(
+    prop1: ModelProperty, prop2: ModelProperty, parent_name: str, config: Config
+) -> Property | PropertyError:
     # Ideally, we would treat this case the same as a schema that consisted of "allOf: [prop1, prop2]",
     # applying the property merge logic recursively and creating a new third schema if the result could
     # not be fully described by one or the other. But for now we will just handle the common case where
@@ -137,9 +141,9 @@ def _merge_models(prop1: ModelProperty, prop2: ModelProperty, parent_name: str,
                 merged_props[sub_prop.name] = merged_prop
             else:
                 merged_props[sub_prop.name] = sub_prop
-    
+
     prop_data = _gather_property_data(merged_props.values(), Schemas())
-    
+
     name = prop2.name
     class_string = f"{utils.pascal_case(parent_name)}{utils.pascal_case(name)}"
     class_info = Class.from_string(string=class_string, config=config)
@@ -276,7 +280,9 @@ def _values_are_subset(prop1: EnumProperty, prop2: EnumProperty) -> bool:
     return set(prop1.values.items()) <= set(prop2.values.items())
 
 
-def _model_is_extension_of(extended_model: ModelProperty, base_model: ModelProperty, parent_name: str, config: Config) -> bool:
+def _model_is_extension_of(
+    extended_model: ModelProperty, base_model: ModelProperty, parent_name: str, config: Config
+) -> bool:
     def _properties_are_extension_of(extended_list: list[Property], base_list: list[Property]) -> bool:
         for p2 in base_list:
             if not [p1 for p1 in extended_list if _property_is_extension_of(p2, p1, parent_name, config)]:
@@ -288,7 +294,9 @@ def _properties_are_extension_of(extended_list: list[Property], base_list: list[
     ) and _properties_are_extension_of(extended_model.optional_properties, base_model.optional_properties)
 
 
-def _property_is_extension_of(extended_prop: PropertyProtocol, base_prop: PropertyProtocol, parent_name: str, config: Config) -> bool:
+def _property_is_extension_of(
+    extended_prop: PropertyProtocol, base_prop: PropertyProtocol, parent_name: str, config: Config
+) -> bool:
     return base_prop.name == extended_prop.name and (
         base_prop == extended_prop or merge_properties(base_prop, extended_prop, parent_name, config) == extended_prop
     )
diff --git a/tests/test_parser/test_properties/test_merge_properties.py b/tests/test_parser/test_properties/test_merge_properties.py
index 2e67377ff..16228869c 100644
--- a/tests/test_parser/test_properties/test_merge_properties.py
+++ b/tests/test_parser/test_properties/test_merge_properties.py
@@ -153,7 +153,8 @@ def test_merge_enums(literal_enums, enum_property_factory, literal_enum_property
 
 @pytest.mark.parametrize("literal_enums", (False, True))
 def test_merge_string_with_string_enum(
-    literal_enums, string_property_factory, enum_property_factory, literal_enum_property_factory, config):
+    literal_enums, string_property_factory, enum_property_factory, literal_enum_property_factory, config
+):
     string_prop = string_property_factory(default=Value("A", "A"), description="desc1", example="example1")
     enum_prop = (
         literal_enum_property_factory(
@@ -327,7 +328,9 @@ def test_merge_related_models(model_property_factory, string_property_factory, c
         class_info=Class.from_string(string="DerivedModel", config=config),
     )
 
-    assert merge_properties(base_model, extension_model, "", config) == evolve(extension_model, example=base_model.example)
+    assert merge_properties(base_model, extension_model, "", config) == evolve(
+        extension_model, example=base_model.example
+    )
     assert merge_properties(extension_model, base_model, "", config) == evolve(
         extension_model, description=base_model.description, example=base_model.example
     )