def METHOD_NAME(self, subscriber_owner, subscriber_function, raised_exception):
    """
    Handle exception raised by subscriber during publishing.
    :param subscriber_owner: instance of class whose method was subscribed (or None)
    :param subscriber_function: subscribed class method or raw function
    :param raised_exception: exception raised by subscriber during publishing
    :return: None
    """
    pass  # TODO: we may log it