code: def listAllFilesInDir(folder):
      """Utility function to list all files/subdirs in the input folder"""
      allFiles = []
      for root, dirs, files in os.walk(folder):
          for name in files:
              allFiles.append(os.path.join(root, name))
      return allFiles
  
file_path: cugraph/ci/utils/git_helpers.py
imports: import subprocess
  import os
  import re
label_desc: Use image node_id 9 for calling a global function with example usage: listAllFilesInDir(folder) and returns: allFiles