code: def update_submodules() -> None:
      run_cmd(["git", "submodule", "update", "--init", "--recursive"])
  
file_path: pytorch/tools/linter/clang_tidy/generate_build_files.py
imports: import os
  import subprocess
  import sys
  from typing import List
label_desc: Use image node_id 2 for calling a global function with example usage: update_submodules() without return types