code: def main() -> None:
      pytorch_dir = Path(__file__).resolve().parents[3]
      upgrader_path = pytorch_dir / "torch" / "csrc" / "jit" / "runtime"
      write_decomposition_util_file(str(upgrader_path))
  
imports: import os
  from pathlib import Path
  from torch.jit._decompositions import decomposition_table
label_desc: Use image node_id 4 for calling a global function with example usage: main() without return types