docstr: Vaalidate that the op still works with a tensor of unknown shape.
docstr_tok: ["Vaalidate","that","the","op","still","works","with","a","tensor","of","unknown","shape","."]
code: def test_with_unknown_shape_tensor(self):
      """Vaalidate that the op still works with a tensor of unknown shape."""
      data = array_ops.placeholder_with_default(
          constant_op.constant([1, 2, 3, 4, 5]), shape=None
      )
      width = 3
      axis = -1
  
      expected_result = constant_op.constant(
          [[1, 2, 3], [2, 3, 4], [3, 4, 5]]
      )
      self._test_sliding_window_op(expected_result, data, width, axis)
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  from absl.testing import parameterized
  from tensorflow.python.framework import constant_op
  from tensorflow.python.framework import errors
  from tensorflow.python.framework import test_util
  from tensorflow.python.ops import array_ops
  from tensorflow.python.ops.ragged import ragged_factory_ops
  from tensorflow.python.platform import test
  from tensorflow_text.python.ops import sliding_window_op
label_desc: Use image node_id 13 for calling the SlidingWindowOpTest obj's underlying member method code with example usage: obj.test_with_unknown_shape_tensor() without return types