code: def _iter_causes(exc):
      while exc:
          yield str(exc)
          exc = exc.__cause__
  
imports: import logging
  import logging.config
  import logging.handlers
  import os
  import sys
  import colorama
  from dvc.progress import Tqdm
label_desc: Use image node_id 4 for calling a global function with example usage: _iter_causes(exc) without return types