code: def iterate_over_documentation(folder, version):
      cur_folders = [folder]
      while cur_folders:
          cur_dir = cur_folders.pop(0)
          for file in os.listdir(cur_dir):
              if os.path.isdir(os.path.join(cur_dir, file)):
                  cur_folders.append(os.path.join(cur_dir, file))
              else:
                  if file.startswith("_"):
                      add_python_helper_to_markdown(
                          cur_dir, file, version
                      )
  
imports: import io
  import os
  import re
  import sys
label_desc: Use image node_id 2 for calling a global function with example usage: iterate_over_documentation(folder, version) without return types