+ Improved type safety with ParamSpec and TypeVar

caffeine-addictt · caffeine-addictt · commit 12d21f32f4a8 · 2023-12-19T14:29:07.000+08:00
diff --git a/src/thread/_types.py b/src/thread/_types.py
@@ -30,8 +30,9 @@
 # Function types
 _Target_P = ParamSpec('_Target_P')
 _Target_T = TypeVar('_Target_T')
-_Dataset_T = TypeVar('_Dataset_T')
-
 TargetFunction = Callable[_Target_P, _Target_T]
 
 HookFunction = Callable[[_Target_T], Union[Any, None]]
+
+_Dataset_T = TypeVar('_Dataset_T')
+DatasetFunction = Callable[[_Dataset_T], _Target_T]
