@property<EOL><INDENT>def best_actions(self):<DEDENT>
if self._best_actions is None:<EOL><INDENT>best_prediction = self.best_prediction<EOL>self._best_actions = tuple(<EOL>action<EOL>for action, action_set in self._action_sets.items()<EOL>if action_set.prediction == best_prediction<EOL>)<EOL><DEDENT>return self._best_actions<EOL>
A tuple containing the actions whose action sets have the best
        prediction.