Automatically apply a coupon for specific user roles

add_action('woocommerce_before_cart_table', 'automatic_copons');
function automatic_coupons() {
    global $woocommerce;
    if( current_user_can('administrator') || current_user_can('staff') || current_user_can('editor')) {
       $woocommerce->cart->add_discount('FreeShipping');
        
    }
}