@classmethod
def postprocess(cls, options):
    if (('gaussian' in options) and (options['gaussian'] is True)):
        options['extension'] = set([S.ImaginaryUnit])
        Extension.postprocess(options)
@classmethod
def postprocess(cls, options):
    if (('gaussian' in options) and (options['gaussian'] is True)):
        options['extension'] = set([S.ImaginaryUnit])
        Extension.postprocess(options)