code: def test_instances(self):
      iinfo(10)
      finfo(3.0)
  
imports: import functools
  import warnings
  from unittest import skipIf
  import numpy
  from pytest import raises
  from torch.testing._internal.common_utils import run_tests, TEST_WITH_TORCHDYNAMO, TestCase, xpassIfTorchDynamo
label_desc: Use image node_id 1 for calling the TestMisc obj's underlying member method code with example usage: obj.test_instances() without return types