def pin_cookie_name(self) -> str:
        """The name of the pin cookie."""
        if not hasattr(self, "_pin_cookie"):
            pin_cookie = get_pin_and_cookie_name(self.app)
            self._pin, self._pin_cookie = pin_cookie  # type: ignore
        return self._pin_cookie
The name of the pin cookie.
src/werkzeug/debug/__init__.py