'List error page configured for the specified load balancer.
:param balancer: Balancer which should be used
:type balancer: :class:`LoadBalancer`
:rtype: ``str``'

def ex_get_balancer_error_page(self, balancer):

    uri = ('/loadbalancers/%s/errorpage' % balancer.id)
    resp = self.connection.request(uri)
    return resp.object['errorpage']['content']
