types: change dispatcher call

Signed-off-by: nstarman <[email protected]>

Author: nstarman

plum/dispatcher.py

@@ -10,7 +10,7 @@
 
 __all__ = ["Dispatcher", "dispatch", "clear_all_cache"]
 
-T = TypeVar("T", bound=Callable[..., Any])
+F = TypeVar("F")
 
 
 _dataclass_kw_args: dict[str, Any] = {}
@@ -38,16 +38,16 @@ class Dispatcher:
     classes: dict[str, dict[str, Function]] = field(default_factory=dict)
 
     @overload
-    def __call__(self, method: T, /, *, precedence: int = ...) -> T: ...
+    def __call__(self, method: F, /, *, precedence: int = ...) -> F: ...
 
     @overload
     def __call__(
         self, method: None, /, *, precedence: int = ...
-    ) -> Callable[[T], T]: ...
+    ) -> Callable[[F], F]: ...
 
     def __call__(
-        self, method: Optional[T] = None, /, *, precedence: int = 0
-    ) -> Union[T, Callable[[T], T]]:
+        self, method: Optional[F] = None, /, *, precedence: int = 0
+    ) -> Union[F, Callable[[F], F]]:
         """Decorator to register for a particular signature.
 
         Args: