code: def test_big_lshift(self):
      self.assertEqual(42 << 32, 42 * 2**32)
      self.assertEqual((-42) << 32, -42 * 2**32)
      self.assertEqual(1122 << 32, 1122 * 2**32)
      self.assertEqual((-1122) << 32, -1122 * 2**32)
      self.assertEqual(2**128 << 32, 2**160)
      self.assertEqual(-(2**128) << 32, -(2**160))
  
imports: import unittest
  from test import support
  import sys
  import random
  import math
  import array
label_desc: Use image node_id 38 for calling the LongTest obj's underlying member method code with example usage: obj.test_big_lshift() without return types