I have a custom plugin and want it on occasions to fire the kind of notice that appears and disapears in the left corner like this one:

I found some code in the Gutenberg docs here:

const MySnackbarNotice = () => (
 <Snackbar>
    Post published successfully.
 </Snackbar>
);

But adding this to my admin-enqueued js script obviously doesn’t work.

Thanks!