code: def test_bitop_identities(self):
      for x in special:
          self.check_bitop_identities_1(x)
      digits = range(1, MAXDIGITS + 1)
      for lenx in digits:
          x = self.getran(lenx)
          self.check_bitop_identities_1(x)
          for leny in digits:
              y = self.getran(leny)
              self.check_bitop_identities_2(x, y)
              self.check_bitop_identities_3(
                  x, y, self.getran((lenx + leny) // 2)
              )
  
imports: import unittest
  from test import support
  import sys
  import random
  import math
  import array
label_desc: Use image node_id 9 for calling the LongTest obj's underlying member method code with example usage: obj.test_bitop_identities() without return types