def join(chars=[]):
    return b''.join(chars).decode()
An attempt to attach an unknown ``BlockDeviceVolume`` raises
dataset/ETHPy150Open jasonrbriggs/stomp.py/stomp/backward3.py/join--crossover with--dataset/ETHPy150Open ClusterHQ/flocker/flocker/node/agents/testtools/_blockdevice.py/IBlockDeviceAPITestsMixin.test_attach_unknown_volume