title: In Google App Maker, how do you display a snackbar message?
body: <p>I am currently trying to build an application using Google App Maker. After a user hits a "Create" button, depending on whether the files were successfully or unsuccessfully sent, a popup snackbar should display saying "File successfully sent" or "Something went wrong. File not sent." I want to indicate to the user in the final deployed application (no bottom console log) whether their files were sent or not. I do not know how to do this. I have tried creating separate pre-created snackbars (one for success, one for failure) and having the clientscript function display either one depending on what is returned from the serverscript function. However, I do not know how to show them. How do you display a snackbar popup in a clientscript function? Thank you for your help!</p>