class_docstr: Small util which generates the path/urls for the dataframes.
code: def has_visualization(self, builder):
      filepath = os.path.join(self._base_path, self._get_name(builder))
      return tf.io.gfile.exists(filepath)
  
imports: import collections
  import dataclasses
  import json
  import os
  import textwrap
  from typing import Any, Dict, List, Mapping, Optional, Tuple, Union
  import tensorflow_datasets
  from tensorflow_datasets.core import constants
  from tensorflow_datasets.core.utils.lazy_imports_utils import tensorflow
label_desc: Use image node_id 5 for calling the DataframeDocUtil obj's underlying member method code with example usage: obj.has_visualization(builder) and returns: tf