code: def _tr_system(line_info):
      "Translate lines escaped with: !"
      cmd = line_info.line.lstrip().lstrip(ESC_SHELL)
      return "%sget_ipython().system(%r)" % (line_info.pre, cmd)
  
imports: import abc
  import functools
  import re
  from IPython.core.splitinput import LineInfo
  from IPython.utils import tokenize2
  from IPython.utils.openpy import cookie_comment_re
  from IPython.utils.py3compat import with_metaclass, PY3
  from IPython.utils.tokenize2 import generate_tokens, untokenize, TokenError
label_desc: Use image node_id 3 for calling a global function with example usage: _tr_system(line_info) and returns: unknown