scikit-learn__scikit-learn-14629

AttributeError with cross_val_predict(method='predict_proba') when using MultiOuputClassifier

Verdict: the issue points to the file or function that was changed (Tier B).

Help wanted to add `classes_` to `MultiOutputClassifier` like it is in `ClassifierChain`

The two checks disagreed (stated fix vs. points to it); the lower reading shown: “To obtain the `classes_` attribute of a `MultiOutputClassifier`, you need `mo_clf.estimators_[i].classes_` instead.”

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