class_docstr: C4 dataset based on Common Crawl.
class_docstr_tok: ["C4","dataset","based","on","Common","Crawl","."]
code: def _info(self):
      features = {
          "text": tfds.features.Text(),
          "url": tfds.features.Text(),
          "content-type": tfds.features.Text(),
          "content-length": tfds.features.Text(),
          "timestamp": tfds.features.Text(),
      }
      return tfds.core.DatasetInfo(
          builder=self,
          description=_DESCRIPTION,
          features=tfds.features.FeaturesDict(features),
          citation=_CITATION,
          homepage="https://github.com/google-research/text-to-text-transfer-transformer#datasets",
      )
  
imports: import collections
  import functools
  import json
  import os
  from typing import Optional, Sequence
  import uuid
  from absl import logging
  from etils import epath
  from tensorflow_datasets.core.utils import tree_utils
  from tensorflow_datasets.core.utils.lazy_imports_utils import tensorflow
  import tensorflow_datasets.public_api
  from tensorflow_datasets.text import c4_utils
label_desc: Use image node_id 1 for calling the C4 obj's underlying member method code with example usage: obj._info() and returns: tfds