Method get_class_decorator_hook

mypy/plugin.py:728–744

Update class definition for given class decorators. The plugin can modify a TypeInfo _in place_ (for example add some generated methods to the symbol table). This hook is called after the class body was semantically analyzed, but *there may still be placeholders* (typically

(self, fullname: str)

        return None

    def get_class_decorator_hook(self, fullname: str) -> Callable[[ClassDefContext], None] | None:
        """Update class definition for given class decorators.

        The plugin can modify a TypeInfo _in place_ (for example add some generated
        methods to the symbol table). This hook is called after the class body was
        semantically analyzed, but *there may still be placeholders* (typically
        caused by forward references).

        NOTE: Usually get_class_decorator_hook_2 is the better option, since it
              guarantees that there are no placeholders.

        The hook is called with full names of all class decorators.

        The hook can be called multiple times per class, so it must be
        idempotent.
        """
        return None

    def get_class_decorator_hook_2(
        self, fullname: str