class_docstr: Abstract base class for discriminator loss functions.
code: def __call__(
      self, real_logits: Tensor, fake_logits: Tensor, target: Tensor
  ) -> Tensor:
      raise NotImplementedError
  
imports: import torch.nn
  from torch import Tensor
label_desc: Use image node_id 1 for calling the DiscriminatorLoss obj's underlying member method code with example usage: obj.__call__(real_logits, fake_logits, target) without return types