Description of problem:


Version-Release number of selected component (if applicable):
ovirt-engine-sdk-python-3.5.0.3-1.20140712.git73490d1.el6.noarch

How reproducible:
always

Steps to Reproduce:
#!/usr/bin/env python
import ovirtsdk.api
from ovirtsdk.xml import params

API = ovirtsdk.api.API(url='https://localhost:443/api', insecure=True,
        username='admin@internal', password='password', filter=False, debug=False)

for i in API.users.list():
    print i.get_name()

for i in API.domains.list()[0].users.list():
    print i.get_name()

Actual results:
Traceback (most recent call last):
  File "./spam.py", line 8, in <module>
    for i in API.users.list():
  File "/usr/lib/python2.6/site-packages/ovirtsdk/infrastructure/brokers.py", line 18746, in list
    headers={}
AttributeError: 'Users' object has no attribute 'get_owner'


Expected results:
list engine users and domain users

Additional info: