code: def __init__(self):
      super().__init__()
      self.loss_fn = nn.CrossEntropyLoss()
  
file_path: ColossalAI/examples/language/gpt/experiments/auto_offload/model_zoo.py
imports: import torch
  import torch.nn
  from transformers import GPT2Config, GPT2LMHeadModel
label_desc: Use image node_id 1 to create a new GPTLMLoss object from inherited base classes: nn with example: obj = GPTLMLoss()