docstr: Test padding a tensor whose shape is not known at graph building time.
docstr_tok: ["Test","padding","a","tensor","whose","shape","is","not","known","at","graph","building","time","."]
code: def test_padding_tensor_of_unknown_shape(self):
      """Test padding a tensor whose shape is not known at graph building time."""
      data = array_ops.placeholder_with_default(
          constant_op.constant([[1, 1, 1], [2, 2, 1], [3, 3, 1]]),
          shape=None,
      )
      axis = 1
      left_pad_value = [0]
      right_pad_value = [9]
      expected_result = constant_op.constant(
          [[0, 1, 1, 1, 9], [0, 2, 2, 1, 9], [0, 3, 3, 1, 9]]
      )
  
      padded_result = pad_along_dimension_op.pad_along_dimension(
          data=data,
          axis=axis,
          left_pad=left_pad_value,
          right_pad=right_pad_value,
      )
  
      self.assertAllEqual(expected_result, padded_result)
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  from absl.testing import parameterized
  from tensorflow.python.eager import context
  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.ops.ragged import ragged_tensor
  from tensorflow.python.platform import test
  from tensorflow_text.python.ops import pad_along_dimension_op
label_desc: Use image node_id 11 for calling the PadAlongDimensionOpTest obj's underlying member method code with example usage: obj.test_padding_tensor_of_unknown_shape() without return types