code: def _replacer(x):
      """Replace a number with its hexadecimal representation. Used to tag
      temporary variables with their calling scope's id.
      """
      # get the hex repr of the binary char and remove 0x and pad by pad_size
      # zeros
      try:
          hexin = ord(x)
      except TypeError:
          # bytes literals masquerade as ints when iterating in py3
          hexin = x
  
      return hex(hexin)
  
imports: import datetime
  import inspect
  import itertools
  import pprint
  import struct
  import sys
  import numpy
  from pandas.compat import DeepChainMap, StringIO, map
  import pandas
  from pandas.core.base import StringMixin
  import pandas.core.computation
label_desc: Use image node_id 2 for calling a global function with example usage: _replacer(x) and returns: hex