def lookup_cast(self, lookup_type):
        return "%s"
Find Melange block associated with the Quantum UUID,
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.2/django/db/backends/__init__.py/BaseDatabaseOperations.lookup_cast--crossover with--dataset/ETHPy150Open nii-cloud/dodai-compute/nova/network/quantum/melange_ipam_lib.py/QuantumMelangeIPAMLib.delete_subnets_by_net_id