code: def testProtoOptionsDefaultValuesRoundTrip(self):
      pb = dataset_options_pb2.Options()
      options = options_lib.Options()
      options._from_proto(pb)
      result = options._to_proto()
      expected_pb = dataset_options_pb2.Options()
      expected_pb.autotune_options.CopyFrom(
          dataset_options_pb2.AutotuneOptions()
      )
      expected_pb.distribute_options.CopyFrom(
          dataset_options_pb2.DistributeOptions()
      )
      expected_pb.optimization_options.CopyFrom(
          dataset_options_pb2.OptimizationOptions()
      )
      expected_pb.warm_start = True
      expected_pb.threading_options.CopyFrom(
          dataset_options_pb2.ThreadingOptions()
      )
      self.assertProtoEquals(expected_pb, result)
  
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 13 for calling the OptionsTest obj's underlying member method code with example usage: obj.testProtoOptionsDefaultValuesRoundTrip() without return types