code: def ashraeiam(self, aoi):
          
          kwargs = _build_kwargs(['b'], self.module_parameters)
  
          return ashraeiam(aoi, **kwargs)
docs: Determine the incidence angle modifier using
          ``self.module_parameters['b']``, ``aoi``,
          and the :py:func:`ashraeiam` function.
  
          Uses default arguments if keys not in module_parameters.
  
          Parameters
          ----------
          aoi : numeric
              The angle of incidence in degrees.
  
          Returns
          -------
          modifier : numeric
              The AOI modifier.