do use orjson typing stubs after all

src/ufoLib2/serde/json.py

@@ -1,17 +1,17 @@
 from __future__ import annotations
 
-from typing import Any, Type, cast
+from typing import Any, Type
 
 from ufoLib2.converters import structure, unstructure
 from ufoLib2.typing import T
 
 have_orjson = False
 try:
-    import orjson as json  # type: ignore
+    import orjson
 
     have_orjson = True
 except ImportError:
-    import json  # type: ignore
+    import json
 
 
 def dumps(
@@ -26,16 +26,16 @@ def dumps(
         if indent is not None:
             if indent != 2:
                 raise ValueError("indent must be 2 or None for orjson")
-            kwargs["option"] = kwargs.pop("option", 0) | json.OPT_INDENT_2
+            kwargs["option"] = kwargs.pop("option", 0) | orjson.OPT_INDENT_2
         if sort_keys:
-            kwargs["option"] = kwargs.pop("option", 0) | json.OPT_SORT_KEYS
+            kwargs["option"] = kwargs.pop("option", 0) | orjson.OPT_SORT_KEYS
         # orjson.dumps always returns bytes
-        result = json.dumps(data, **kwargs)
+        result = orjson.dumps(data, **kwargs)
     else:
         # built-in json.dumps returns a string, not bytes, hence the encoding
         s = json.dumps(data, indent=indent, sort_keys=sort_keys, **kwargs)
         result = s.encode("utf-8")
-    return cast(bytes, result)
+    return result
 
 
 def loads(s: str | bytes, object_class: Type[T], **kwargs: Any) -> T:

tox.ini

@@ -28,8 +28,6 @@ deps =
 commands =
     black --check --diff .
     isort --skip-gitignore --check-only --diff src tests
-    # typing stubs for orjson exist but I don't want mypy to use them!
-    pip uninstall -y orjson
     mypy --strict src tests
     flake8