How to edit custom events in the Firebase

import { appmaker } from '@appmaker-xyz/core';

function updateFirebaseEvents(){
    appmaker.addFilter(
    'firebaseEventData',
    'custom-events',
    ({ eventName, params, eventObject }) => {
      switch (eventName) {
        case 'view_item':
             console.log('params', params); // params is an object object which contains the sending event attributes of the event.
          console.log('eventObject', eventObject); // eventObject is an object that contains whole data for the event.
          // example of updating the event params object using the eventObject
          params.items[0].item_id = eventObject?.product_sku?.value;
          break;
        case 'add_to_cart':
          eventName = 'Add to Cart'; // example of updating the event name
          params.items[0].item_id = eventObject?.product_sku?.value;
          break;
        case 'add_to_wishlist':
          params.items[0].item_id = eventObject?.product_sku?.value;
          break;
        default:
          break;
      }
       // sending the updated params and eventName
      return {
        eventName,
        params,
      };
    },
  );
}
export { updateFirebaseEvents }