code: def _showtraceback(self, etype, evalue, stb):
      """Print the traceback purely on stdout for doctest to capture it."""
      print(self.InteractiveTB.stb2text(stb), file=sys.stdout)
  
file_path: catboost/contrib/python/ipython/py3/IPython/testing/globalipapp.py
imports: import builtins
  import sys
  import types
  from pathlib import Path
  from .None import tools
  from IPython.core import page
  from IPython.utils import io
  from IPython.terminal.interactiveshell import TerminalInteractiveShell
label_desc: Use image node_id 3 for calling a global function with example usage: _showtraceback(etype, evalue, stb) without return types