code: def testWindowDifferentNestedStructures(self):
      ds = dataset_ops.Dataset.from_tensor_slices(
          ([1, 2], [3, 4])
      ).window(2)
      self.getNext(ds)
      ds = dataset_ops.Dataset.from_tensor_slices({"a": [1, 2]}).window(
          2
      )
      self.getNext(ds)
  
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 3 for calling the WindowTest obj's underlying member method code with example usage: obj.testWindowDifferentNestedStructures() without return types