code: def get_mean_and_stddevs(self, sites, rup, dists, imt, stddev_types):
          
  
          sites.vs30 = 700 * np.ones(len(sites.vs30))
  
          mean, stddevs = super().get_mean_and_stddevs(
              sites, rup, dists, imt, stddev_types)
  
          tau_ss = 'tauC'
          log_phi_ss = 1.00
          C = ZhaoEtAl2006AscSWISS05.COEFFS_ASC
          mean, stddevs = _apply_adjustments(
              C, self.COEFFS_FS_ROCK[imt], tau_ss,
              mean, stddevs, sites, rup, dists.rrup, imt, stddev_types,
              log_phi_ss)
  
          return mean, stddevs
docs: See :meth:`superclass method
          <.base.GroundShakingIntensityModel.get_mean_and_stddevs>`
          for spec of input and result values.