'Gets load balanced server id
:param lb_id: ID of the load balancer
:rtype: ``str``
:param server_ip: ID of the server IP
:rtype: ``str``
:return: Server IP
:rtype: ``dict``'

def ex_get_load_balancer_server_ip(self, lb_id, server_ip):

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