print(loss_func([model](https://docs.pytorch.org/docs/stable/generated/torch.nn.Sequential.html#torch.nn.Sequential "torch.nn.Sequential")([xb](https://docs.pytorch.org/docs/stable/tensors.html#torch.Tensor "torch.Tensor")), [yb](https://docs.pytorch.org/docs/stable/tensors.html#torch.Tensor "torch.Tensor")))