DOC fix missing return line in docstring
@@ -501,6 +501,7 @@ class StackingClassifier(ClassifierMixin, _BaseStacking):
feature_names_in_ : ndarray of shape (`n_features_in_`,)
Names of features seen during :term:`fit`. Only defined if the
underlying estimators expose such an attribute when fit.
+
.. versionadded:: 1.0
final_estimator_ : estimator
@@ -860,6 +861,7 @@ class StackingRegressor(RegressorMixin, _BaseStacking):
feature_names_in_ : ndarray of shape (`n_features_in_`,)
Names of features seen during :term:`fit`. Only defined if the
underlying estimators expose such an attribute when fit.
+
.. versionadded:: 1.0
final_estimator_ : estimator
