code: def _relpath_for_iter_files(path, run_dir):
      relpath = os.path.relpath(path, run_dir)
      return relpath if relpath != "." else ""
  
imports: import os
  import re
  from guild import manifest
  from guild import util
  from guild import var
label_desc: Use image node_id 18 for calling a global function with example usage: _relpath_for_iter_files(path, run_dir) and returns: unknown