class_docstr: WMT translation dataset.
code: def _info(self):
      src, target = self.builder_config.language_pair
      return tfds.core.DatasetInfo(
          builder=self,
          description=_DESCRIPTION,
          features=tfds.features.Translation(
              languages=self.builder_config.language_pair,
          ),
          supervised_keys=(src, target),
          homepage=self.builder_config.url,
          citation=self.builder_config.citation,
      )
  
imports: import codecs
  import functools
  import gzip
  import itertools
  import os
  import re
  from typing import List
  from xml.etree import ElementTree
  from absl import logging
  from etils import epath
  from tensorflow_datasets.core.utils import tree_utils
  import tensorflow_datasets.public_api
label_desc: Use image node_id 4 for calling the WmtTranslate obj's underlying member method code with example usage: obj._info() and returns: tfds