docstr: Return the dataset.
docstr_tok: ["Return","the","dataset","."]
code: def data(self) -> LabeledFrame:
      """Return the dataset."""
      if self._data is not None:
          return self._data
      else:
          raise ValueError(
              "Data is not loaded yet. Run `load_data` method."
          )
  
file_path: aequitas/src/aequitas/fairflow/datasets/dataset.py
imports: from abc import ABC, abstractmethod
  import pandas
  from ..utils import LabeledFrame
label_desc: Use image node_id 4 for calling the Dataset obj's underlying member method code with example usage: obj.data() and returns: self