How to catch ajax from smart.filter?

Question

1C-Bitrix

Hi all!
Please tell me how to catch ajax request from smart.filter? I did not find it in the documentation, maybe I was looking badly.
Yes, there is an event, but how to catch it from a smart filter?

BX.addCustomEvent('onAjaxSuccess', function(){

});

Answer 1

Full syntax

BX.addCustomEvent("onAjaxSuccess", function(module_id,command,params) {});