use Widmogrod\Primitive\EmptyListError;
use Widmogrod\Primitive\Listt;
use Widmogrod\Primitive\Stringg;
-use const Widmogrod\Functional\fromValue;
use function Widmogrod\Functional\append;
use function Widmogrod\Functional\bind;
use function Widmogrod\Functional\concatM;
use function Widmogrod\Monad\Free\foldFree;
use function Widmogrod\Monad\Maybe\just;
use function Widmogrod\Monad\Maybe\nothing;
+use const Widmogrod\Functional\fromValue;
// Some dependencies are needed
require_once __DIR__ . '/FreeCalculatorTest.php';