Class Button

// ...  const action = CardService.newAuthorizationAction().setAuthorizationUrl('url'); CardService.newTextButton().setText('Authorize').setAuthorizationAction(action);

// ...  const action = CardService.newAction().setFunctionName('composeEmailCallback'); CardService.newTextButton()     .setText('Compose Email')     .setComposeAction(action, CardService.ComposedEmailType.REPLY_AS_DRAFT);  // ...  function composeEmailCallback(e) {   const thread = GmailApp.getThreadById(e.threadId);   const draft = thread.createDraftReply('This is a reply');   return CardService.newComposeActionResponseBuilder()       .setGmailDraft(draft)       .build(); }

// ...  const action = CardService.newAction().setFunctionName('notificationCallback'); CardService.newTextButton()     .setText('Create notification')     .setOnClickAction(action);  // ...  function notificationCallback() {   return CardService.newActionResponseBuilder()       .setNotification(           CardService.newNotification().setText('Some info to display to user'),           )       .build(); }

// ...  const action = CardService.newAction().setFunctionName('openLinkCallback'); CardService.newTextButton()     .setText('Open Link')     .setOnClickOpenLinkAction(action);  // ...  function openLinkCallback() {   return CardService.newActionResponseBuilder()       .setOpenLink(CardService.newOpenLink().setUrl('https://www.google.com'))       .build(); }

const overflowMenuItem =     CardService.newOverflowMenuItem()         .setStartIcon(             CardService.newIconImage().setIconUrl(                 'https://www.google.com/images/branding/googleg/1x/googleg_standard_color_64dp.png',                 ),             )         .setText('Open Link')         .setOpenLink(             CardService.newOpenLink().setUrl('https://www.google.com'));  const overflowMenu =     CardService.newOverflowMenu().addMenuItem(overflowMenuItem).build();