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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 _diffsigma(self, Ep, Egamma):
 """ Differential cross section dsigma/dEg = Amax(Tp) * F(Tp,Egamma) """

        Tp = Ep - self._m_p

        diffsigma = self._Amax(Tp) * self._F(Tp, Egamma)

        if self.nuclear_enhancement:
            diffsigma *= self._nuclear_factor(Tp)

        return diffsigma