code: def hijack_expand_mask():
      import transformers
  
      transformers.models.llama.modeling_llama._expand_mask = (  # pylint: disable=protected-access
          _expand_mask
      )
  
imports: from typing import Optional
  import torch
label_desc: Use image node_id 2 for calling a global function with example usage: hijack_expand_mask() without return types