code: def testName(self):
      dataset = (
          dataset_ops.Dataset.from_tensors(42)
          .window(1, name="window")
          .flat_map(lambda x: x)
      )
      self.assertDatasetProduces(dataset, [42])
  
imports: from absl.testing import parameterized
  import numpy
  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.data.util import nest
  from tensorflow.python.framework import combinations
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import errors
  from tensorflow.python.framework import sparse_tensor
  from tensorflow.python.ops import array_ops
  from tensorflow.python.ops import math_ops
  from tensorflow.python.platform import test
label_desc: Use image node_id 11 for calling the WindowTest obj's underlying member method code with example usage: obj.testName() without return types