code: def _compute(self, left_on, right_on):
          
          result = self._compute_vectorized(*tuple(left_on + right_on))
  
          return result
docs: Compare the data on the left and right.
  
          :meth:`BaseCompareFeature._compute` and
          :meth:`BaseCompareFeature.compute` differ on the accepted
          arguments. `_compute` accepts indexed data while `compute`
          accepts the record pairs and the DataFrame's.
  
          Parameters
          ----------
          left_on : (tuple of) pandas.Series
              Data to compare with `right_on`
          right_on : (tuple of) pandas.Series
              Data to compare with `left_on`
  
          Returns
          -------
          pandas.Series, pandas.DataFrame, numpy.ndarray
              The result of comparing record pairs (the features). Can be
              a tuple with multiple pandas.Series, pandas.DataFrame,
              numpy.ndarray objects.