Internal error when create accelerator

[zhuli]

there is a 500 error when calling API to create an accelerator, because the function accelerator_create() got an unexpected keyword argument during rpc dispatcher.

reproduce:

$ curl -g -i -X POST http://10.3.4.1:6666/accelerators -H 'User-Agent: python-novaclient' -H 'Content-Type: application/json' -H 'Accept: application/json' -H 'X-Auth-Token: xxxxxxxxx' -d '
{
    "name": "test",
    "description": "test",
    "project_id": "xxxxxxxxxxxxxxxxxx",
    "user_id": "xxxxxxxxxxxxxxx",
    "device_type": "test",
    "acc_type": "test",
    "acc_capability": "test",
    "vendor_id": "test",
    "product_id": "test",
    "remotable": 1
}
HTTP/1.1 500 Internal Server Error
Openstack-Request-Id: req-c2284f0b-fd35-4c27-9310-f27e094f496c
Content-Type: application/json
Content-Length: 776
Date: Mon, 11 Dec 2017 15:55:51 GMT

log of cyborg-conductor service:
Exception during message handling: TypeError: accelerator_create() got an unexpected keyword argument 'values'
ERROR oslo_messaging.rpc.server Traceback (most recent call last):
ERROR oslo_messaging.rpc.server File "/usr/local/lib/python2.7/dist-packages/oslo_messaging/rpc/server.py", line 160, in _process_incoming
ERROR oslo_messaging.rpc.server res = self.dispatcher.dispatch(message)
ERROR oslo_messaging.rpc.server File "/usr/local/lib/python2.7/dist-packages/oslo_messaging/rpc/dispatcher.py", line 213, in dispatch
ERROR oslo_messaging.rpc.server return self._do_dispatch(endpoint, method, ctxt, args)
ERROR oslo_messaging.rpc.server File "/usr/local/lib/python2.7/dist-packages/oslo_messaging/rpc/dispatcher.py", line 183, in _do_dispatch
ERROR oslo_messaging.rpc.server result = func(ctxt, **new_args)
ERROR oslo_messaging.rpc.server TypeError: accelerator_create() got an unexpected keyword argument 'values'