Show Message on Cart

To message on the cart page , there is a inbuilt functionality for adding message on the cart section , we can make use of it sample is shown beloe

var cart = container.getComponent('Cart');
cart.showMessage({
message: _.isEmpty(message1) ? message1 : message2,
type: 'error',
selector: 'cart_detailed_cms_area_1'// where to show
);