def free(self):
        return self.sem.counter
Changing enumerated values using ``vlarray.__setitem__()``.
dataset/ETHPy150Open veegee/guv/guv/greenpool.py/GreenPool.free--crossover with--dataset/ETHPy150Open PyTables/PyTables/tables/tests/test_enum.py/EnumVLArrayTestCase.test03_setitem