def __len__(self):
        return(len(self.mappings))
Submits a wide array of events make sure that each is scheduled to occur in the order they were received
dataset/ETHPy150Open resync/resync/resync/mapper.py/Mapper.__len__--crossover with--dataset/ETHPy150Open datastax/python-driver/tests/unit/test_control_connection.py/EventTimingTest.test_event_delay_timing