protected function mapCommands(ServiceLocator $serviceLocator)
{
$serviceLocator->get(Services::KERNEL_COMMAND_HANDLER_MAP)->register(CreateCart::class, $serviceLocator->get(CustomerServices::CUSTOMER_CREATE_CART_HANDLER));
$serviceLocator->get(Services::KERNEL_COMMAND_HANDLER_MAP)->register(AddToCart::class, $serviceLocator->get(CustomerServices::CUSTOMER_ADD_TO_CART_HANDLER));
$serviceLocator->get(Services::KERNEL_COMMAND_HANDLER_MAP)->register(RemoveFromCart::class, $serviceLocator->get(CustomerServices::CUSTOMER_REMOVE_FROM_CART_HANDLER));
}