Merge pull request #72 from adamtheturtle/pyright

Fix some errors I hit while using this library with pyright

Author: espdev

src/click_option_group/_decorators.py

@@ -96,8 +96,8 @@ def group(
         *,
         help: Optional[str] = None,
         cls: Optional[Type[OptionGroup]] = None,
-        **attrs,
-    ) -> Decorator:
+        **attrs: Any,
+    ) -> Decorator[F]:
         """The decorator creates a new group and collects its options
 
         Creates the option group and registers all grouped options
@@ -115,7 +115,7 @@ def group(
             msg = "'cls' must be a subclass of 'OptionGroup' class."
             raise TypeError(msg)
 
-        def decorator(func):
+        def decorator(func: F) -> F:
             callback, params = get_callback_and_params(func)
 
             if callback not in self._decorating_state:
@@ -153,7 +153,7 @@ def decorator(func):
 
         return decorator
 
-    def option(self, *param_decls, **attrs) -> Decorator:
+    def option(self, *param_decls: str, **attrs: Any) -> Decorator[F]:
         """The decorator adds a new option to the group
 
         The decorator is lazy. It adds option decls and attrs.
@@ -163,7 +163,7 @@ def option(self, *param_decls, **attrs) -> Decorator:
         :param attrs: additional option attributes and parameters
         """
 
-        def decorator(func):
+        def decorator(func: F) -> F:
             callback, params = get_callback_and_params(func)
 
             option_stack = self._decorating_state[callback]
@@ -177,7 +177,7 @@ def decorator(func):
 
         return decorator
 
-    def help_option(self, *param_decls, **attrs) -> Decorator:
+    def help_option(self, *param_decls: str, **attrs: Any) -> Decorator[F]:
         """This decorator adds a help option to the group, which prints
         the command's help text and exits.
         """