code: def pvsyst_celltemp(self, poa_global, temp_air, wind_speed=1.0):
          
          kwargs = _build_kwargs(['eta_m', 'alpha_absorption'],
                                 self.module_parameters)
          return pvsyst_celltemp(poa_global, temp_air, wind_speed,
                                 model_params=self.racking_model, **kwargs)
docs: Uses :py:func:`pvsyst_celltemp` to calculate module temperatures
          based on ``self.racking_model`` and the input parameters.
  
          Parameters
          ----------
          See pvsystem.pvsyst_celltemp for details
  
          Returns
          -------
          See pvsystem.pvsyst_celltemp for details