docstr: Test that rt.__getitem__(slice_spec) == expected.
docstr_tok: ["Test","that","rt.__getitem__","(","slice_spec",")","==","expected","."]
code: def testWithPlaceholderShapes(self, slice_spec, expected):
      """Test that rt.__getitem__(slice_spec) == expected."""
      # Intentionally use an unknown shape for `splits`, to force the code path
      # that deals with having nrows unknown at graph construction time.
      splits = constant_op.constant(
          EXAMPLE_RAGGED_TENSOR_2D_SPLITS, dtype=dtypes.int64
      )
      splits = array_ops.placeholder_with_default(splits, None)
      rt = RaggedTensor.from_row_splits(
          EXAMPLE_RAGGED_TENSOR_2D_VALUES, splits
      )
      self.assertAllEqual(rt, EXAMPLE_RAGGED_TENSOR_2D)
      self._TestGetItem(rt, slice_spec, expected)
  
imports: import re
  from absl.testing import parameterized
  from tensorflow.python.eager import context
  from tensorflow.python.framework import constant_op
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import errors
  from tensorflow.python.framework import test_util
  from tensorflow.python.ops import array_ops
  from tensorflow.python.ops import tensor_getitem_override
  from tensorflow.python.ops.ragged import ragged_factory_ops
  from tensorflow.python.ops.ragged.ragged_tensor import RaggedTensor
  from tensorflow.python.platform import googletest
label_desc: Use image node_id 10 for calling the RaggedGetItemTest obj's underlying member method code with example usage: obj.testWithPlaceholderShapes(slice_spec, expected) without return types