code: def sapm(self, effective_irradiance, temp_cell, **kwargs):
          
          return sapm(effective_irradiance, temp_cell, self.module_parameters)
docs: Use the :py:func:`sapm` function, the input parameters,
          and ``self.module_parameters`` to calculate
          Voc, Isc, Ix, Ixx, Vmp/Imp.
  
          Parameters
          ----------
          poa_direct : Series
              The direct irradiance incident upon the module (W/m^2).
  
          poa_diffuse : Series
              The diffuse irradiance incident on module.
  
          temp_cell : Series
              The cell temperature (degrees C).
  
          airmass_absolute : Series
              Absolute airmass.
  
          aoi : Series
              Angle of incidence (degrees).
  
          kwargs
              See pvsystem.sapm for details
  
          Returns
          -------
          See pvsystem.sapm for details