code: def _lazy_import():
      from .. import backends
      from ..utils import import_submodule
  
      import_submodule(backends)
  
      from ..repro.after_dynamo import dynamo_minifier_backend
  
      assert dynamo_minifier_backend is not None
  
file_path: pytorch/torch/_dynamo/backends/registry.py
imports: import functools
  import sys
  from typing import Callable, Dict, List, Optional, Protocol, Sequence, Tuple
  import torch
  from torch import fx
label_desc: Use image node_id 4 for calling a global function with example usage: _lazy_import() without return types