def save_final_config(self, configuration):
    print "Optimal block size written to mmm_final_config.json:", configuration.data
    self.manipulator().save_to_file(configuration.data,
                                    'mmm_final_config.json')
called at the end of tuning
dataset/ETHPy150Open jansel/opentuner/examples/tutorials/mmm_tuner.py/GccFlagsTuner.save_final_config