class_docstr: Autocast context manager for Pytorch XPU Model Inference.
  
  This context manager is used for providing no grad and autocast context,
  which is used for bf16 model.
class_docstr_tok: ["Autocast","context","manager","for","Pytorch","XPU","Model","Inference",".","This","context","manager","is","used","for","providing","no","grad","and","autocast","context",",","which","is","used","for","bf16","model","."]
code: def __exit__(self, exc_type, exc_value, exc_tb):
      super().__exit__(exc_type, exc_value, exc_tb)
  
imports: import torch
  import operator
  from bigdl.nano.utils.common import compare_version
label_desc: Use image node_id 3 for calling the XPUAutocastContextManager obj's underlying member method code with example usage: obj.__exit__(exc_type, exc_value, exc_tb) without return types