how to add wc 28 29 function in my custom page

1/**
2 * Get custom single product page template for a category
3 */
4
5function my_custom_product_template($template, $slug, $name) {
6    if ($name === 'single-product' && $slug === 'content') {
7        global $product_cat;
8        $temp = locate_template(array("{$slug}-{$name}-{$product_cat}.php", WC()->template_path() . "{$slug}-{$name}-{$product_cat}.php"));
9        if($temp) {
10           $template = $temp;
11        }
12    }
13    return $template;
14}
15
16add_filter('wc_get_template_part', 'my_custom_product_template', 10, 3);