@classmethod
def create_key_from_series(cls, series):
    """
        Create resolver cache key from KomaPy series.

        :param series: KomaPy series config instance.
        :type series: :class:`komapy.series.Series`
        :return: KomaPy resolver cache key.
        :rtype: int
        """
    return hash(cls.create_instance_from_series(series))
