'List balanced server IP addresses
:param lb_id: ID of the load balancer
:rtype: ``str``
:return: Array of IP address IDs
:rtype: ``dict``'

def ex_list_load_balancer_server_ips(self, lb_id):

    response = self.connection.request(action=('load_balancers/%s/server_ips' % lb_id), method='GET')
    return response.object
