The Graph must return a single
Prediction on its
call. The result of the
$train() call is discarded, only the
internal state changes during training are used.
predict_type of a
GraphLearner can be obtained or set via it's
predict_type active binding.
Setting a new predict type will try to set the
predict_type in all relevant
Learner encapsulated within the
Similarly, the predict_type of a Graph will always be the smallest denominator in the