'Associates, updates, or disables a policy with a listener on
the load balancer
:param name: balancer name to set policies for listerner
:type  name: ``str``
:param port: port to use
:type  port: ``str``
:param policies: List of policies to be associated with the balancer
:type  policies: ``string list``'

def ex_set_balancer_policies_listener(self, name, port, policies):

    params = {'Action': 'SetLoadBalancerPoliciesOfListener', 'LoadBalancerName': name, 'LoadBalancerPort': str(port)}
    if policies:
        params = self._create_list_params(params, policies, 'PolicyNames.member.%d')
    response = self.connection.request(ROOT, params=params)
    return (response.status == httplib.OK)
