code: def testName(self):
      dataset = dataset_ops.Dataset.from_tensors(42).unique(
          name="unique"
      )
      self.assertDatasetProduces(dataset, [42])
  
imports: from absl.testing import parameterized
  from tensorflow.python.data.kernel_tests import checkpoint_test_base
  from tensorflow.python.data.kernel_tests import test_base
  from tensorflow.python.data.ops import dataset_ops
  from tensorflow.python.framework import combinations
  from tensorflow.python.framework import dtypes
  from tensorflow.python.platform import test
  from tensorflow.python.util import compat
label_desc: Use image node_id 5 for calling the UniqueTest obj's underlying member method code with example usage: obj.testName() without return types