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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _smooth_interpolated_smooth(self):
 """ Smooth interpolated results with tweeter span. A final step of the supersmoother is to smooth the interpolated values with the tweeter span. This is done in Breiman's supsmu.f but is not explicitly discussed in the publication. This step is necessary to match the FORTRAN version perfectly. """

        smoothed_results = smoother.perform_smooth(self.x,
                                                   self.smooth_result,
                                                   TWEETER_SPAN)
        self.smooth_result = smoothed_results.smooth_result