def add_to_instance(self, context, instance, security_group_name):
        raise NotImplementedError()
build IonException from code, message, and optionally one or more stack traces
dataset/ETHPy150Open BU-NU-CLOUD-SP16/Trusted-Platform-Module-nova/nova/network/security_group/security_group_base.py/SecurityGroupBase.add_to_instance--crossover with--dataset/ETHPy150Open ooici/pyon/pyon/core/exception.py/ExceptionFactory.create_exception