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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 AddPmf(self, other):
 """Computes the Pmf of the sum of values drawn from self and other. other: another Pmf returns: new Pmf """

        pmf = Pmf()
        for v1, p1 in self.Items():
            for v2, p2 in other.Items():
                pmf.Incr(v1 + v2, p1 * p2)
        return pmf