Generate symbolic graph for adversarial examples and return.

    :param x: The model's symbolic inputs.
    :param kwargs: Keyword arguments for the base attacker

def generate(self, x, **kwargs):
    """
    Generate symbolic graph for adversarial examples and return.

    :param x: The model's symbolic inputs.
    :param kwargs: Keyword arguments for the base attacker
    """

    assert self.parse_params(**kwargs)
    labels, _nb_classes = self.get_or_guess_labels(x, kwargs)
    adv_x = self.attack(x, labels)

    return adv_x