def start_instance(self, ctxt, instance):
        cctxt = self.client.prepare(version='1.12')
        cctxt.cast(ctxt, 'start_instance', instance=instance)
Tests setting lifecycle configuration on multiple buckets.
dataset/ETHPy150Open BU-NU-CLOUD-SP16/Trusted-Platform-Module-nova/nova/cells/rpcapi.py/CellsAPI.start_instance--crossover with--dataset/ETHPy150Open GoogleCloudPlatform/gsutil/gslib/tests/test_lifecycle.py/TestSetLifecycle.test_set_lifecycle_multi_buckets