+use Org\Mxchange\CoreFramework\Bootstrap\FrameworkBootstrap;
+use Org\Mxchange\CoreFramework\Database\Frontend\User\UserDatabaseFrontend;
+use Org\Mxchange\CoreFramework\Factory\Object\ObjectFactory;
+use Org\Mxchange\CoreFramework\Generic\FrameworkInterface;
+use Org\Mxchange\CoreFramework\Manager\Login\ManageableMember;
+use Org\Mxchange\CoreFramework\Registry\Registerable;
+use Org\Mxchange\CoreFramework\User\BaseUser;
+use Org\Mxchange\CoreFramework\User\UsernameMissingException;
+
+// Import SPL stuff
+use \InvalidArgumentException;