code: def smoothed(self, iterations=1):
          
          copy = self.Clone(shallow=True)
          copy.Smooth(iterations)
          return copy
docs: Return a smoothed copy of this histogram
  
          Parameters
          ----------
  
          iterations : int, optional (default=1)
              The number of smoothing iterations
  
          Returns
          -------
  
          hist : asrootpy'd histogram
              The smoothed histogram