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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 get_alt(self, option):
 """ Return the alternative values of an option Parameters option: str option name Returns ------- str a string of alternative options """

        assert hasattr(self, option)

        alt = option + '_alt'
        if not hasattr(self, alt):
            return ''
        return ', '.join(self.__dict__[alt])