def run(self, deployer, state_persister):
        api = deployer.async_block_device_api
        return api.detach_volume(self.blockdevice_id)
Run migrations in 'online' mode.
dataset/ETHPy150Open ClusterHQ/flocker/flocker/node/agents/blockdevice.py/DetachVolume.run--crossover with--dataset/ETHPy150Open fgimian/flaskage/flaskage/templates/project/db/migrations/env.py/run_migrations_online