@staticmethod
    def instance():
        if not hasattr(IOLoop, "_instance"):
            with IOLoop._instance_lock:
                if not hasattr(IOLoop, "_instance"):
                    # New instance after double check
                    IOLoop._instance = IOLoop()
        return IOLoop._instance
Return the next set of queries to pass to the repository
dataset/ETHPy150Open RobotWebTools/rosbridge_suite/rosbridge_server/src/tornado/ioloop.py/IOLoop.instance--crossover with--dataset/ETHPy150Open sassoftware/conary/conary/repository/findtrove.py/QuerySet.nextSearchList