fix: Use dict[str, Any] for validated_data (#49)

> TODO(sbdchd): figure out how hard it would be to make this return a dict[str, Any]

Turned out not hard at all ;)

rest_framework-stubs/serializers.pyi

@@ -135,7 +135,7 @@ class Serializer(BaseSerializer, metaclass=SerializerMetaclass):
     def get_initial(self) -> Any: ...
     fields: Any
     def get_fields(self) -> dict[str, Field[Any, Any, Any, Any]]: ...
-    def validate(self, attrs: Any) -> Any: ...
+    def validate(self, attrs: dict[str, Any]) -> dict[str, Any]: ...
     def __iter__(self) -> Iterator[str]: ...
     def __getitem__(self, key: str) -> BoundField: ...
     def _read_only_defaults(self) -> dict[str, Any]: ...
@@ -219,8 +219,8 @@ class ModelSerializer(Serializer, BaseSerializer):
         allow_null: bool = ...,
         allow_empty: bool = ...,
     ): ...
-    def update(self, instance: Any, validated_data: Any) -> Any: ...
-    def create(self, validated_data: Any) -> Any: ...
+    def update(self, instance: Any, validated_data: dict[str, Any]) -> Any: ...
+    def create(self, validated_data: dict[str, Any]) -> Any: ...
     def save(self, **kwargs: Any) -> Any: ...
     def to_representation(self, instance: Any) -> Any: ...
     def get_field_names(

rest_framework-stubs/test.pyi

@@ -127,7 +127,7 @@ class ForceAuthClientHandler(ClientHandler):
     def __init__(self, *args: Any, **kwargs: Any): ...
     def get_response(self, request: Request) -> Response: ...  # type: ignore[override]
 
-class APIClient(APIRequestFactory, DjangoClient):
+class APIClient(APIRequestFactory, DjangoClient):  # pyright: ignore[reportIncompatibleMethodOverride]
     handler: Any = ...
     def credentials(self, **kwargs: Any) -> Any: ...
     def force_authenticate(self, user: Any | None = ..., token: Token | None = ...) -> None: ...