def METHOD_NAME(self, preds, gt):
    """ Update curves.
    Arguments:
        preds (dict<np.array>): dict of predicted quantiles.
        gt (Annotation): annotation object.
    """
    self.curves["gt"].set_ydata(gt.inorm(gt.outputs.flatten()))
    for key, val in preds.items():
        self.curves[key].set_ydata(gt.inorm(val.flatten()))
    return self.curves.values()