code: def check_equal_hash(self, x, y):
      # check both that x and y are equal and that their hashes are equal
      self.assertEqual(
          hash(x),
          hash(y),
          "got different hashes for {!r} and {!r}".format(x, y),
      )
      self.assertEqual(x, y)
  
imports: import unittest
  import random
  import math
  import sys
  import operator
  from decimal import Decimal
  from fractions import Fraction
label_desc: Use image node_id 1 for calling the HashTest obj's underlying member method code with example usage: obj.check_equal_hash(x, y) without return types