```py
        >>> from datasets import load_dataset
        >>> ds = load_dataset("rotten_tomatoes")
        >>> ds.data
        ```
        """
        self._check_values_type()
        return {k: dataset.data for k, dataset in self.items()}

    @property
    def cache_files(self) -> Dict[str, Dict]:
        """The cache files containing the Apache Arrow table backing each split.

        Example: