liff.getOS() liff.getLanguage() liff.getVersion() liff.isInClient() AUTH APIs liff.isLoggedIn() liff.login() liff.logout() liff.getAccessToken() liff.getDecodedIDToken() liff.getContext() HTTP APIs liff.getProfile() liff.sendMessages() liff.getFriendship() CLIENT APIs liff.openWindow() liff.closeWindow() liff.scanCode() PERMANENT LINK liff.permanentLink.createUrl() liff.permanentLink.setExtraQueryParam()