Hi, I have been trying with this:
/** @odoo-module **/

odoo.define('point_of_sale.RewardButton', function (require) {

'use strict';

const RewardButton = require('point_of_sale.RewardButton');

const Registries = require('point_of_sale.Registries');

const ProductScreen = require('point_of_sale.ProductScreen');

const RewardButtonUp = RewardButton => class extends RewardButton {

setup() {

console.log("ENTER INTO SETUP");

super.setup();

useListener('click', this.onMiClick);

}

async onMiClick() {

console.log("My custom click");

}

};

Registries.Component.extend(RewardButton, RewardButtonUp);

return RewardButtonUp;

});

But nothing happend