code: def test_AddSubtree(self):
      try:
          sample_trans = ads_ins.transform(sample)
      except FlintError:
          print("Cannot access Wikidata")
      else:
          if sample_trans:
              ins_ads = sample_trans[0]
              self.assertEqual(
                  [
                      "Influential",
                      "members",
                      "of",
                      "the",
                      "House",
                      "Ways",
                      "and",
                      "Means",
                      "Committee",
                      ",",
                      "introduced",
                      "legislation",
                      "that",
                      "would",
                      "restrict",
                      "how",
                      "the",
                      "new",
                      "savings-and-loan",
                      "bailout",
                      "agency",
                      "can",
                      "raise",
                      "capital",
                      ",",
                      "creating",
                      "another",
                      "potential",
                      "obstacle",
                      "to",
                      "the",
                      "government",
                      "'s",
                      "sale",
                      "of",
                      "sick",
                      "thrifts",
                      ".",
                  ],
                  ins_ads.get_value("x"),
              )
          for trans in sample_trans:
              words = trans.get_value("x")
              self.assertTrue(",," not in "".join(words))
  
      data_no_entity = {
          "word": word,
          "head": head,
          "deprel": deprel,
          "postag": ["NN"] * len(word),
      }
      try:
          sample_trans = ads_ins.transform(DPSample(data_no_entity))
      except FlintError:
          print("Cannot access Wikidata")
      else:
          self.assertEqual([], sample_trans)
  
      try:
          change = ads_ins.transform(sample, n=5)
      except FlintError:
          print("Cannot access Wikidata")
      else:
          self.assertTrue(5 >= len(change))
  
file_path: textflint/test/generation/transformation/DP/test_add_sub_tree.py
imports: import unittest
  from textflint.input.component.sample.dp_sample import DPSample
  from textflint.generation.transformation.DP.add_sub_tree import AddSubTree
  from textflint.common.utils.error import FlintError
label_desc: Use image node_id 1 for calling the TestSpecialAddSubtree obj's underlying member method code with example usage: obj.test_AddSubtree() without return types