public function choice($question, $choices = array(), $allowedMultiple = false)
    {
        $this->output->writeln($question);

        $this->output->writeln(join(',', $choices));

        $answer = $this->input->getInput();

        $valid = $this->validateChoices($answer, $choices, $allowedMultiple);

        if ($valid !== false) {
            return $valid;
        }

        $this->output->writeln($this->wrongChoiceErrorMessage);

        return false;
    }