code: def test_valid_tags_with_comments(self):
      text = dataset_metadata.valid_tags_with_comments()
      self.assertIn(
          "content.data-type.image # Contains image data.", text
      )
  
imports: from tensorflow_datasets import testing
  from tensorflow_datasets.core import dataset_metadata
  from tensorflow_datasets.core.utils import resource_utils
label_desc: Use image node_id 3 for calling the DatasetMetadataTest obj's underlying member method code with example usage: obj.test_valid_tags_with_comments() without return types