def type_hint(self, key: str):
        """Returns type hint for the specified ``key``.

        Args:
            key: key of interest

        Returns:
            type hint for the specified key
        """
        # return get_type_hints(self).get(key, None)
        return type(getattr(self, key, None))
Returns type hint for the specified ``key``.

        Args:
            key: key of interest

        Returns:
            type hint for the specified key
        
catalyst/settings.py