docs: def format_as_dataframes(explanation):
      # type: (Explanation) -> Dict[str, pd.DataFrame]
      """ Export an explanation to a dictionary with ``pandas.DataFrame`` values
      and string keys that correspond to explanation attributes.
      Use this method if several dataframes can be exported from a single
      explanation (e.g. for CRF explanation with has both feature weights
      and transition matrix).
      Note that :func:`eli5.explain_weights` limits number of features
      by default. If you need all features, pass ``top=None`` to
      :func:`eli5.explain_weights`, or use
      :func:`explain_weights_dfs`.
      """
      result = {}
      for attr in _EXPORTED_ATTRIBUTES:
          value = getattr(explanation, attr)
          if value:
              result[attr] = format_as_dataframe(value)
      return result