def close(self):
        for name, brain in self.brains.items():
            brain['fwd'].close()
            brain['rev'].close()
API Version 2014-10-01 defines the following filters for DescribeSubnets:
dataset/ETHPy150Open capnrefsmmat/seuss/rhyme.py/RhymingMarkovGenerator.close--crossover with--dataset/ETHPy150Open spulec/moto/moto/ec2/models.py/Subnet.get_filter_value