code: def test_gzip_reading(self):
      results = [
          x
          for _, x in wmt._parse_parallel_sentences(
              os.path.join(self.dummy_data, "first.cs.gz"),
              os.path.join(self.dummy_data, "second.en.txt"),
          )
      ]
      self.assertEqual(results[1]["cs"], "zmizel")
      self.assertEqual(results[0]["cs"], "běžím")
  
file_path: datasets/tensorflow_datasets/translate/wmt_test.py
imports: import os
  from tensorflow_datasets import testing
  import tensorflow_datasets.public_api
  from tensorflow_datasets.translate import wmt
label_desc: Use image node_id 3 for calling the TranslateWmtCustomConfigTest obj's underlying member method code with example usage: obj.test_gzip_reading() without return types