def _future_action(self, ns, terminal, np_actions, ns_phi, na):
        return na
Begins by playing C, then plays D for the remaining rounds if the opponent ever plays D.
dataset/ETHPy150Open rlpy/rlpy/rlpy/Agents/TDControlAgent.py/SARSA._future_action--crossover with--dataset/ETHPy150Open Axelrod-Python/Axelrod/axelrod/strategies/grudger.py/Grudger.strategy