class_docstr: Yelp Polarity reviews dataset.
code: def _info(self):
      return tfds.core.DatasetInfo(
          builder=self,
          description=_DESCRIPTION,
          features=tfds.features.FeaturesDict(
              {
                  "text": tfds.features.Text(),
                  "label": tfds.features.ClassLabel(names=["1", "2"]),
              }
          ),
          supervised_keys=("text", "label"),
          homepage="https://course.fast.ai/datasets",
          citation=_CITATION,
      )
  
file_path: datasets/tensorflow_datasets/text/yelp_polarity.py
imports: import os
  from etils import epath
  import tensorflow_datasets.public_api
label_desc: Use image node_id 1 for calling the YelpPolarityReviews obj's underlying member method code with example usage: obj._info() and returns: tfds