code: def test_equivalent_dtype_hashing(self):
      # Make sure equivalent dtypes with different type num hash equal
      intp = np.dtype(np.intp)
      if intp.itemsize == 4:
          left = intp
          right = np.dtype(np.int32)
      else:
          left = intp
          right = np.dtype(np.int64)
      assert_(left == right)
      assert_(hash(left) == hash(right))
  
imports: import functools
  import operator
  import pickle
  import sys
  import types
  from itertools import permutations
  from typing import Any
  from unittest import skipIf
  import pytest
  from pytest import raises
  from torch.testing._internal.common_utils import instantiate_parametrized_tests, parametrize, run_tests, subtest, TEST_WITH_TORCHDYNAMO, TestCase, xpassIfTorchDynamo
  import numpy
label_desc: Use image node_id 2 for calling the TestBuiltin obj's underlying member method code with example usage: obj.test_equivalent_dtype_hashing() without return types