code: def setUp(self):
      super(SplitMergeTokenizerTest, self).setUp()
      self.tokenizer = SplitMergeTokenizer()
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  from tensorflow.python.framework import constant_op
  from tensorflow.python.framework import ops
  from tensorflow.python.framework import test_util
  from tensorflow.python.ops import array_ops
  from tensorflow.python.ops import math_ops
  from tensorflow.python.ops import string_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.split_merge_tokenizer import SplitMergeTokenizer
label_desc: Use image node_id 1 for calling the SplitMergeTokenizerTest obj's underlying member method code with example usage: obj.setUp() without return types