def acquire(self):
        with self.mutex:
            assert not self.poisoned
            assert self.nthreads >= 0
            self.nthreads += 1
Invoke list_get_range() get back elements from the list with
dataset/ETHPy150Open beetbox/beets/beets/util/pipeline.py/CountedQueue.acquire--crossover with--dataset/ETHPy150Open aerospike/aerospike-client-python/test/old_tests/_test_list_get_range.py/TestListGetRange.test_list_get_range_with_correct_paramters