Is there a way to retrieve the list of feature names used for training of a classifier, once it has been trained with the
Based on the documentation and previous experience, there is no way to get a list of the features considered at least at one of the splitting.
Is your concern that you do not want to use all your features for prediction, just the ones actually used for training? In this case I suggest to list the
feature_importances_ after fitting and eliminate the features that does not seem relevant. Then train a new model with only the relevant features and use those features for prediction as well.