+use Friendica\BaseModule;
+use Friendica\Core\Config;
+use Friendica\Core\L10n;
+use Friendica\Core\PConfig;
+use Friendica\Core\Renderer;
+use Friendica\Core\System;
+use Friendica\Module\Register;
+use Friendica\Protocol\Email;
+use Friendica\Util\Strings;
+
+function invite_post(App $a)
+{