code: def re_unescape(s):
      # type: (str) -> str
      """Unescape a string escaped by `re.escape`.
  
      May raise ``ValueError`` for regular expressions which could not
      have been produced by `re.escape` (for example, strings containing
      ``\d`` cannot be unescaped).
  
      .. versionadded:: 4.4
      """
      return _re_unescape_pattern.sub(_re_unescape_replacement, s)
  
imports: from __future__ import absolute_import, division, print_function
  import array
  import atexit
  import os
  import re
  import sys
  import zlib
label_desc: Use image node_id 6 for calling a global function with example usage: re_unescape(s) and returns: _re_unescape_pattern