code: def testTuple_turnsIntoList(self):
      self.assertEqual(json_util.Cleanse(("a", "b")), ["a", "b"])
  
file_path: tensorboard/tensorboard/backend/json_util_test.py
imports: import collections
  import string
  from tensorboard import test
  from tensorboard.backend import json_util
label_desc: Use image node_id 8 for calling the CleanseTest obj's underlying member method code with example usage: obj.testTuple_turnsIntoList() without return types