code: def test_numeric_style_types_are_invalid(self, dtype):
      with assert_raises(TypeError):
          np.dtype(dtype)
  
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 6 for calling the TestBuiltin obj's underlying member method code with example usage: obj.test_numeric_style_types_are_invalid(dtype) without return types