Update core.py stub with sentinel parameter types

pyunity/core.py

@@ -132,7 +132,7 @@ class SavesProjectID:
 class GameObject(SavesProjectID):
     """
     Class to create a GameObject, which is an object containing
-    :class:`Component`\s.
+    :class:`Component`\\s.
 
     Parameters
     ----------

stubs/pyunity/core.pyi

@@ -94,18 +94,20 @@ class GameObject(SavesProjectID):
     def __repr__(self) -> str: ...
     def __str__(self) -> str: ...
 
-class SavedAttribute(Generic[_T]): ...
+class SavedAttribute(Generic[_T]):
+    class _Sentinel: ...
+    Sentinel: _Sentinel = ...
+
 
 class HideInInspector(SavedAttribute[_T]):
     type: Type[_T]
     default: Union[_T, None]
     name: Union[str, None]
-    def __init__(self, type_: Union[Type[_T], str], default: Union[_T, None] = ...) -> None: ...
+    def __init__(self, type_: Union[Type[_T], str], default: Union[_T, SavedAttribute._Sentinel, None] = ...) -> None: ...
     def __set_name__(self, owner: Component, name: str) -> None: ...
 
 class ShowInInspector(HideInInspector[_T]):
-    name: Union[str, None]
-    def __init__(self, type: Union[Type[_T], str], default: Union[_T, None] = ..., name: Union[str, None] = ...) -> None: ...
+    def __init__(self, type: Union[Type[_T], str], default: Union[_T, SavedAttribute._Sentinel, None] = ..., name: Union[str, None] = ...) -> None: ...
     def __set_name__(self, owner: Component, name: str) -> None: ...
 
 class _AddFields(IncludeInstanceMixin):
@@ -118,6 +120,8 @@ addFields: _AddFields
 class ComponentType(ABCMeta):
     @classmethod
     def __prepare__(cls, name: str, bases: Tuple[type, ...], **kwds: Any) -> Mapping[str, object]: ...  # type: ignore # positional-only parameters not in python < 3.8
+    def __getattr__(self, name: str) -> object: ...
+    def __setattr__(self, name: str, value: object) -> None: ...
 
 class Component(SavesProjectID, metaclass=ComponentType):
     _shown: Dict[str, HideInInspector] = ...