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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def aesthetics(cls):
 """ Return a set of all non-computed aesthetics for this stat. stats should not override this method. """

        aesthetics = cls.REQUIRED_AES.copy()
        calculated = get_calculated_aes(cls.DEFAULT_AES)
        for ae in set(cls.DEFAULT_AES) - set(calculated):
            aesthetics.add(ae)
        return aesthetics