def METHOD_NAME(self, x, norm):
    densities = [hist.rel_counts(x, norm=norm) for hist in self.hists.values()]
    alphas = znp.array(list(self.hists.keys()), dtype=znp.float64)
    alpha = self.params["alpha"]
    y = self._morphing_interpolator(alpha, alphas, densities)
    return y