'Apply inverse transformations in reverse order
All estimators in the pipeline must support ``inverse_transform``.
Parameters
Xt : array-like, shape = [n_samples, n_transformed_features]
Data samples, where ``n_samples`` is the number of samples and
``n_features`` is the number of features. Must fulfill
input requirements of last step of pipeline\'s
``inverse_transform`` method.
Returns
Xt : array-like, shape = [n_samples, n_features]'

@property
def inverse_transform(self):

    for (name, transform) in self.steps:
        if (transform is not None):
            transform.inverse_transform
    return self._inverse_transform
