def forward(
                            self, input: torch.Tensor, target: torch.Tensor  # pylint: disable=W0622
                        ) -> torch.Tensor:
                            """
                            Forward method.
                            :param input: Predicted labels of shape (nb_samples, nb_classes).
                            :param target: Target labels of shape (nb_samples, nb_classes).
                            :return: Difference Logits Ratio Loss.
                            """
                            return self.__call__(y_true=target, y_pred=input)

                            Forward method.
                            :param input: Predicted labels of shape (nb_samples, nb_classes).
                            :param target: Target labels of shape (nb_samples, nb_classes).
                            :return: Difference Logits Ratio Loss.
                            
art/attacks/evasion/rescaling_auto_conjugate_gradient.py