code: def testOptionsHaveDefaults(self):
      options1 = options_lib.Options()
      options2 = options_lib.Options()
      self.assertIsNot(
          options1.experimental_optimization,
          options2.experimental_optimization,
      )
      self.assertIsNot(options1.threading, options2.threading)
      self.assertEqual(
          options1.experimental_optimization,
          options_lib.OptimizationOptions(),
      )
      self.assertEqual(
          options1.threading, options_lib.ThreadingOptions()
      )
  
imports: from absl.testing import parameterized
  from tensorflow.core.framework import dataset_options_pb2
  from tensorflow.python.data.experimental.ops import testing
  from tensorflow.python.data.kernel_tests import test_base
  from tensorflow.python.data.ops import dataset_ops
  from tensorflow.python.data.ops import options
  from tensorflow.python.eager import context
  from tensorflow.python.eager import def_function
  from tensorflow.python.framework import combinations
  from tensorflow.python.platform import test
label_desc: Use image node_id 8 for calling the OptionsTest obj's underlying member method code with example usage: obj.testOptionsHaveDefaults() without return types