code: def testRaggedToString(
      self, rt, expected, summarize=None, ragged_rank=None
  ):
      rt = ragged_factory_ops.constant(rt, ragged_rank=ragged_rank)
      actual = ragged_string_ops.ragged_tensor_to_string(
          rt, summarize=summarize
      )
      self.assertAllEqual(actual, expected)
  
imports: import os.path
  import tempfile
  from absl.testing import parameterized
  from tensorflow.python.eager import def_function
  from tensorflow.python.framework import constant_op
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import test_util
  from tensorflow.python.ops import logging_ops
  from tensorflow.python.ops import sparse_ops
  from tensorflow.python.ops.ragged import ragged_factory_ops
  from tensorflow.python.ops.ragged import ragged_string_ops
  from tensorflow.python.ops.ragged import ragged_tensor
  from tensorflow.python.platform import googletest
label_desc: Use image node_id 1 for calling the RaggedToStringTest obj's underlying member method code with example usage: obj.testRaggedToString(rt, expected, summarize, ragged_rank) without return types