@property<EOL><INDENT>@abstractmethod<EOL>def prediction_weight(self):<DEDENT>
raise NotImplementedError()<EOL>
The weight of this rule's predictions. This is used to resolve
        conflicting predictions made by multiple classifiers appearing in
        the same action set. The combined reward prediction for the entire
        action set is the weighted average of the predictions made by each
        classifier appearing in that action set.