'Return current load balancer usage report.
:param balancer: Balancer to remove the access rules from.
:type  balancer: :class:`LoadBalancer`
:return: Raw load balancer usage object.
:rtype: ``dict``'

def ex_list_current_usage(self, balancer):

    uri = ('/loadbalancers/%s/usage/current' % balancer.id)
    resp = self.connection.request(uri, method='GET')
    return resp.object
