code: def update(self):
          
          metapar = self.subpars.pars.control.waterlevelminimumremotetolerance
          self(smoothtools.calc_smoothpar_logistic1(metapar))
docs: Calculate the smoothing parameter value.
  
          The following example is explained in some detail in module
          |smoothtools|:
  
          >>> from hydpy.models.dam import *
          >>> parameterstep()
          >>> waterlevelminimumremotetolerance(0.0)
          >>> derived.waterlevelminimumremotesmoothpar.update()
          >>> from hydpy.cythons.smoothutils import smooth_logistic1
          >>> from hydpy import round_
          >>> round_(smooth_logistic1(0.1,
          ...        derived.waterlevelminimumremotesmoothpar))
          1.0
          >>> waterlevelminimumremotetolerance(2.5)
          >>> derived.waterlevelminimumremotesmoothpar.update()
          >>> round_(smooth_logistic1(2.5,
          ...        derived.waterlevelminimumremotesmoothpar))
          0.99