code: def system(cmd):
      """
      system(cmd) should work in a cli environment on Mac OSX, Linux,
      and Windows
      """
      psi = System.Diagnostics.ProcessStartInfo(cmd)
      psi.RedirectStandardOutput = True
      psi.RedirectStandardError = True
      psi.WindowStyle = System.Diagnostics.ProcessWindowStyle.Normal
      psi.UseShellExecute = False
      # Start up process:
      reg = System.Diagnostics.Process.Start(psi)
  
file_path: catboost/contrib/python/ipython/py2/IPython/utils/_process_cli.py
imports: import clr
  import System
  import os
  from IPython.utils import py3compat
  from ._process_common import arg_split
label_desc: Use image node_id 2 for calling a global function with example usage: system(cmd) without return types