class_docstr: DatasetBuilder for covid19 dataset.
docstr: Returns SplitGenerators.
docstr_tok: ["Returns","SplitGenerators","."]
code: def _split_generators(
      self, dl_manager: tfds.download.DownloadManager
  ):
      """Returns SplitGenerators."""
      archive_path = dl_manager.download(
          "https://storage.googleapis.com/covid19-open-data/v3/aggregated.csv.gz?generation=1620814656792419"
      )
      return {
          tfds.Split.TRAIN: self._generate_examples(
              dl_manager, archive_path
          )
      }
  
file_path: datasets/tensorflow_datasets/structured/covid19/covid19.py
imports: import numpy
  from tensorflow_datasets.core.utils.lazy_imports_utils import tensorflow
  import tensorflow_datasets.public_api
label_desc: Use image node_id 2 for calling the Covid19 obj's underlying member method code with example usage: obj._split_generators(dl_manager) and returns: dict