code: def forward(self, input, target):
      return self.base_loss_fct(input, target).mean(dim=-1)
  
imports: from small_text.integrations.pytorch.exceptions import PytorchNotFoundError
label_desc: Use image node_id 2 for calling the _LossAdapter2DTo1D obj's underlying member method code with example usage: obj.forward(input, target) and returns: self