def METHOD_NAME(self, X, y=None):
    """Logic used by `inverse_transform` to reverse transformation on `X`.
    Returns an inverse-transformed version of X by iterating over specified
    columns and applying the univariate series transformer to them.
    Only works if `self.transformer` has an `inverse_transform` method.
    Parameters
    ----------
    X : sktime compatible time series container
        Data to be inverse transformed
    y : Series or Panel, default=None
        Additional data, e.g., labels for transformation
    Returns
    -------
    Xt : sktime compatible time series container
        inverse transformed version of X
    """
    return self.transformer_.transform(X=X, y=y)