@property<EOL><INDENT>def best_prediction(self):<DEDENT>
if self._best_prediction is None and self._action_sets:<EOL><INDENT>self._best_prediction = max(<EOL>action_set.prediction<EOL>for action_set in self._action_sets.values()<EOL>)<EOL><DEDENT>return self._best_prediction<EOL>
The highest value from among the predictions made by the action
        sets in this match set.