code: def test_hash(self):
      for x in range(-30, 30):
          self.assertEqual(hash(x), hash(complex(x, 0)))
          x /= 3.0  # now check against floating point
          self.assertEqual(hash(x), hash(complex(x, 0.0)))
  
      self.assertNotEqual(hash(2000005 - 1j), -1)
  
imports: import unittest
  import sys
  from test import support
  from test.test_grammar import VALID_UNDERSCORE_LITERALS, INVALID_UNDERSCORE_LITERALS
  from random import random
  from math import atan2, isnan, copysign
  import operator
label_desc: Use image node_id 28 for calling the ComplexTest obj's underlying member method code with example usage: obj.test_hash() without return types