<s> from neutron . extensions import portbindings <EOL> DF_NETWORK_NAME_EXT_ID_KEY = '<STR_LIT>' <EOL> DF_PORT_NAME_EXT_ID_KEY = '<STR_LIT>' <EOL> DF_ROUTER_NAME_EXT_ID_KEY = '<STR_LIT>' <EOL> DF_PORT_BINDING_PROFILE = portbindings . PROFILE </s>
