code: def _apply_run_files_to_merge(run, manifest_index, merge):
      for run_path in sorted(_iter_run_files(run)):
          _apply_run_file_to_merge(run_path, manifest_index, merge)
  
imports: from collections import namedtuple
  import errno
  import fnmatch
  import logging
  import os
  import shutil
  from guild import file_util
  from guild import run_manifest
label_desc: Use image node_id 4 for calling a global function with example usage: _apply_run_files_to_merge(run, manifest_index, merge) without return types