Como poner que un archivo caduque woocommer

// Set a different Download expiration for specific downloadable products
add_filter('woocommerce_product_get_download_expiry', 'product_get_download_expiry_filter_callback', 30, 2 ); // Simple
add_filter('woocommerce_product_variation_get_download_expiry', 'product_get_download_expiry_filter_callback', 30, 2 ); // Variation
function product_get_download_expiry_filter_callback( $value, $product ) {
    $categories = array( 'action', 'adventure' ); // <== HERE define your product categories (terms ids, slugs or names)

    if( has_term( $categories, 'product_cat', $product->get_id() ) && $value <= 0 ) {
        $value = 3;
    }
    return $value;
}