fix: update __getattr__ method to raise AttributeError for non-existent attributes

Author: ya7010

design/slide_master.py

@@ -6,14 +6,15 @@
 class TpptSlideMasterMeta(type):
     """TpptSlideMasterのメタクラス"""
 
-    def __getattr__(self, key: str) -> Any:
+    def __getattr__(self, key: str) -> "type[TpptSlideLayout]":
         if key in self.__annotations__:
             annotation = self.__annotations__[key]
             if issubclass(annotation, TpptSlideLayout):
                 return annotation
             else:
                 raise AttributeError(f"属性 {key} は {annotation} ではありません")
 
+        raise AttributeError(f"属性 {key} は存在しません")
 
 @dataclass_transform(
     eq_default=True,
@@ -55,7 +56,8 @@ def __get__(self, instance: object | None, objtype: type[Any]) -> type[Self] | S
 TpptSlideLayoutType = TypeVar("TpptSlideLayoutType", bound=Type[TpptSlideLayout])
 
 
-class MyMasterSlide(TpptSlideLayout): ...
+class MyMasterSlide(TpptSlideLayout):
+    def __init__(self, a: int, b: str): ...
 
 
 class MyTitleSlide(TpptSlideLayout): ...
@@ -75,3 +77,4 @@ class MySlideMaster(TpptSlideMaster):
 assert MySlideMaster.master == MyMasterSlide
 assert MySlideMaster.title == MyTitleSlide
 assert MySlideMaster.totle_and_content == MyContentSlide
+MySlideMaster.master(a=1, b="a")