def install():
    from tornado import ioloop
    # check if tornado's IOLoop is already initialized to something other
    # than the pyzmq IOLoop instance:
    assert (not ioloop.IOLoop.initialized()) or \
        ioloop.IOLoop.instance() is IOLoop.instance(), "tornado IOLoop already initialized"
    # register as instance with tornado.ioloop
    ioloop.IOLoop._instance = IOLoop.instance()
Used to identify which results we're waiting for. Will
dataset/ETHPy150Open felipecruz/zmqpy/zmqpy/eventloop/ioloop.py/install--crossover with--dataset/ETHPy150Open serverdensity/sd-agent/checks/libs/thread_pool.py/OrderedResultCollector.register_result