def sapm(self, effective_irradiance, temp_cell, **kwargs):
return sapm(effective_irradiance, temp_cell, self.module_parameters)<EOL>
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