code: def sync_submodules(repo_dir):
      for source, dest in SUBMODULE_SYNC_PATHS:
          source = os.path.join(repo_dir, source)
          dest = os.path.join(repo_dir, dest)
          sync_files(source, dest)
  
imports: import os
  import subprocess
  import sys
  import warnings
  import shutil
label_desc: Use image node_id 6 for calling a global function with example usage: sync_submodules(repo_dir) without return types