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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 reset_sum_fluxes(self):
 """Set the sum of the fluxes calculated so far to zero. 0.0 """

        fluxes = self.sequences.fluxes
        for flux in fluxes.numerics:
            if flux.NDIM == 0:
                setattr(fluxes.fastaccess, '_%s_sum' % flux.name, 0.)
            else:
                getattr(fluxes.fastaccess, '_%s_sum' % flux.name)[:] = 0.