code: def __exit__(self, type, value, traceback):
      # if not enough batches accumulated and there are gradients not applied,
      # do one more step
      if self.batch_count > 0:
          self.step()
  
imports: import torch
  import torch.distributed
  import torch.nn
  import torch.nn.functional
label_desc: Use image node_id 3 for calling the SimpleLossCompute obj's underlying member method code with example usage: obj.__exit__(type, value, traceback) without return types