Passing arguments to salt runner

gistfile1.txt

from reactor:
start_container:
  runner.lxc.init:
    - host: salt-master
    - arg:
      - lxc-test
    - kwarg:
        template: ubuntu
        start: true
 
[DEBUG   ] ThreadPool executing func: <bound method RunnerClient.low of <salt.runner.Run
nerClient object at 0x7ffdfcb30a50>> with args:('lxc.init', {'name': 'start_container', 'state': 'r
unner', 'host': 'salt-master', 'kwarg': OrderedDict([('template', 'ubuntu'), ('start', T
rue)]), '__id__': 'start_container', 'arg': ['lxc-test'], 'order': 1}) kwargs{}
[DEBUG   ] init takes at least 1 argument (0 given)

Another variation:
start_container:
  runner.lxc.init:
    - host: salt-master
    - lxc-test
    - kwarg:
        template: ubuntu
        start: true

[DEBUG   ] Results of YAML rendering:
OrderedDict([('start_container', OrderedDict([('runner.lxc.init', [OrderedDict([('host', 'salt-master')]), 'lxc-test', OrderedDict([('kwarg', OrderedDict([('template', 'ubuntu'), ('start', True)]))])])]))])
Process Reactor-4:
Traceback (most recent call last):
  File "/usr/lib/python2.7/multiprocessing/process.py", line 258, in _bootstrap
    self.run()
  File "/usr/lib/python2.7/dist-packages/salt/utils/event.py", line 691, in run
    chunks = self.reactions(data['tag'], data['data'], reactors)
  File "/usr/lib/python2.7/dist-packages/salt/utils/event.py", line 662, in reactions
    errors = self.verify_high(high)
  File "/usr/lib/python2.7/dist-packages/salt/state.py", line 424, in verify_high
    'SLS {1!r}'.format(state, body['__sls__'])
KeyError: '__sls__'
[INFO    ] Process <class 'salt.utils.event.Reactor'> (2865) died with exit status None, restarting...