code: def _format_exitcodes(exitcodes):
      """Format a list of exit code with names of the signals if possible"""
      str_exitcodes = [
          f"{_get_exitcode_name(e)}({e})"
          for e in exitcodes
          if e is not None
      ]
      return "{" + ", ".join(str_exitcodes) + "}"
  
file_path: catboost/contrib/python/joblib/joblib/externals/loky/backend/utils.py
imports: import os
  import sys
  import time
  import errno
  import signal
  import warnings
  import subprocess
  import traceback
label_desc: Use image node_id 9 for calling a global function with example usage: _format_exitcodes(exitcodes) and returns: unknown