code: def score_frequency_grid(self, f0, df, N):
          
          return self._score_frequency_grid(f0, df, N)
docs: Compute the score on a frequency grid.
  
          Some models can compute results faster if the inputs are passed in this
          manner.
  
          Parameters
          ----------
          f0, df, N : (float, float, int)
              parameters describing the frequency grid freq = f0 + df * arange(N)
              Note that these are frequencies, not angular frequencies.
  
          Returns
          -------
          score : ndarray
              the length-N array giving the score at each frequency