To use in a project:
from oslo_vmware import api
from oslo_vmware import vim_util
api_session = api.VMwareAPISession('10.1.2.3', 'administrator',
'password', 10, 0.1,
create_session=False, port=443)
result = api_session.invoke_api(vim_util, 'get_objects',
api_session.vim, 'HostSystem', 100)