def update_handler(self, fd, events):
        raise NotImplementedError()
Ensures that a recursion error does not occur
dataset/ETHPy150Open RobotWebTools/rosbridge_suite/rosbridge_server/src/tornado/ioloop.py/IOLoop.update_handler--crossover with--dataset/ETHPy150Open Axelrod-Python/Axelrod/axelrod/tests/unit/test_mindreader.py/TestMindReader.test_vs_geller