code: def normalize(format):
      # Remove current endian specifier and white space from a format
      # string
      if format is None:
          return ""
      format = format.replace(OTHER_ENDIAN, THIS_ENDIAN)
      return re.sub(r"\s", "", format)
  
imports: import re
  import sys
  import unittest
  from ctypes import CFUNCTYPE, POINTER, sizeof, Union, Structure, LittleEndianStructure, BigEndianStructure, c_char, c_byte, c_ubyte, c_short, c_ushort, c_int, c_uint, c_long, c_ulong, c_longlong, c_ulonglong, c_uint64, c_bool, c_float, c_double, c_longdouble, py_object
label_desc: Use image node_id 1 for calling a global function with example usage: normalize(format) and returns: re, str