def ashraeiam(self, aoi):
kwargs = _build_kwargs(['<STR_LIT:b>'], self.module_parameters)<EOL>return ashraeiam(aoi, **kwargs)<EOL>
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.