def physicaliam(self, aoi):
kwargs = _build_kwargs(['<STR_LIT>', '<STR_LIT:L>', '<STR_LIT:n>'], self.module_parameters)<EOL>return physicaliam(aoi, **kwargs)<EOL>
Determine the incidence angle modifier using ``aoi``,
``self.module_parameters['K']``,
``self.module_parameters['L']``,
``self.module_parameters['n']``,
and the
:py:func:`physicaliam` 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.