class_docstr: TREC Dataset.
code: def _info(self):
      return self.dataset_info_from_configs(
          features=tfds.features.FeaturesDict(
              {
                  "label-coarse": tfds.features.ClassLabel(
                      names=_COARSE_LABELS
                  ),
                  "label-fine": tfds.features.ClassLabel(
                      names=_FINE_LABELS
                  ),
                  "text": tfds.features.Text(),
              }
          ),
          # If there's a common (input, target) tuple from the features,
          # specify them here. They'll be used if as_supervised=True in
          # builder.as_dataset.
          supervised_keys=None,
          # Homepage of the dataset for documentation
          homepage="https://cogcomp.seas.upenn.edu/Data/QA/QC/",
      )
  
imports: from tensorflow_datasets.core.utils.lazy_imports_utils import tensorflow
  import tensorflow_datasets.public_api
label_desc: Use image node_id 1 for calling the Builder obj's underlying member method code with example usage: obj._info() and returns: self