# File lib/fog/network/openstack/requests/update_lbaas_listener.rb, line 5
        def update_lbaas_listener(listener_id, options = {})

          data = { 'listener' => {} }

          vanilla_options = [:name, :description, :connection_limit, :default_tls_container_ref, :sni_container_refs,
                             :admin_state_up]
          vanilla_options.select { |o| options.key?(o) }.each do |key|
            data['listener'][key] = options[key]
          end

          request(
            :body    => Fog::JSON.encode(data),
            :expects => 200,
            :method  => 'PUT',
            :path    => "lbaas/listeners/#{listener_id}"
          )
        end