def endDocument(self):
An attempt to attach an already attached ``BlockDeviceVolume`` raises
dataset/ETHPy150Open deanhiller/databus/webapp/play1.3.x/python/Lib/xml/sax/handler.py/ContentHandler.endDocument--crossover with--dataset/ETHPy150Open ClusterHQ/flocker/flocker/node/agents/testtools/_blockdevice.py/IBlockDeviceAPITestsMixin.test_attach_attached_volume