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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 primers(self, tm=60):
        '''Design primers for amplifying the assembled sequence.

        :param tm: melting temperature (lower than overlaps is best).
        :type tm: float
        :returns: Primer list (the output of coral.design.primers).
        :rtype: list

        '''
        self.primers = coral.design.primers(self.template, tm=tm)
        return self.primers