'filter=
app_name=my-sla-app
id=0000002-131206135002457-oozie-oozi-W
nominal_start=2013-06-18T00:01Z
nominal_end=2013-06-23T00:01Z'

def get_oozie_slas(self, **kwargs):

    params = self._get_params()
    params['filter'] = ';'.join([('%s=%s' % (key, val)) for (key, val) in kwargs.iteritems()])
    resp = self._root.get('sla', params)
    return resp['slaSummaryList']
