def get_class_dict(self, classification):
        base, sub = classification
        return self._content[base][sub]
Adds instances to this load balancer. All instances must be in the same
dataset/ETHPy150Open moloney/dcmstack/src/dcmstack/dcmmeta.py/DcmMetaExtension.get_class_dict--crossover with--dataset/ETHPy150Open darcyliu/storyboard/boto/ec2/elb/loadbalancer.py/LoadBalancer.register_instances