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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 _emiss_ee(self, Eph):
 """ Electron-electron bremsstrahlung emissivity per unit photon energy """

        if self.weight_ee == 0.0:
            return np.zeros_like(Eph)

        gam = np.vstack(self._gam)
        # compute integral with electron distribution
        emiss = c.cgs * trapz_loglog(
            np.vstack(self._nelec) * self._sigma_ee(gam, Eph),
            self._gam,
            axis=0,
        )
        return emiss