def evaluate(self, _tuple, scheme, state=None):
        raise NotImplementedError()
Test get_availability_zones.
dataset/ETHPy150Open uwescience/raco/raco/expression/expression.py/DottedRef.evaluate--crossover with--dataset/ETHPy150Open BU-NU-CLOUD-SP16/Trusted-Platform-Module-nova/nova/tests/unit/test_availability_zones.py/AvailabilityZoneTestCases.test_get_availability_zones