code: def test_split_wet_file(self):
      if six.PY2:
          # GzipFile + GFile and TextIOWrapper are broken for py2.
          return
      counters, counter_inc_fn = _get_counters()
      list(
          c4_utils.split_wet_file(
              os.path.join(
                  testing.fake_examples_dir(),
                  "c4/c4_wet_files/cc_0.warc.wet.gz",
              ),
              counter_inc_fn=counter_inc_fn,
          )
      )
      self.assertEqual(
          {
              "wet-file": 1,
              "passed": 6,
              "filtered:no_url": 1,
          },
          dict(counters),
      )
  
imports: import collections
  import os
  import six
  from tensorflow_datasets import testing
  from tensorflow_datasets.core.lazy_imports_lib import lazy_imports
  from tensorflow_datasets.text import c4_utils
label_desc: Use image node_id 9 for calling the C4UtilsTest obj's underlying member method code with example usage: obj.test_split_wet_file() without return types