Virtual slides documentation misses example for `renderSlide` about swiper-website HOT 1 CLOSED

$(function () {
             var mySwiper = new Swiper('.swiper-container', {
                 // Optional parameters
                 direction: 'horizontal',
                 loop: false,

                 // If we need pagination
                 pagination: {
                     el: '.swiper-pagination',
                 },

                 // Navigation arrows
                 navigation: {
                     nextEl: '.swiper-button-next',
                     prevEl: '.swiper-button-prev',
                 },

                 // And if we need scrollbar
                 scrollbar: {
                     el: '.swiper-scrollbar',
                 },
                virtual: {
                    slides: ['about1', 'test2', 'test3', 'test4', 'test5', 'test6'], // url adreses
                    renderSlide: function (slide, index) {
                                return `<div class="swiper-slide" data-component="${slide}" data-rendered="false" id="${slide}"> ${slide} ${index}</div>`;
                                }
                },
             });

        });