protected function askForGraph()
    {
        $choices = array_map(function ($name, $config) {
            return $name."\t(".$config['class'].' - '.$config['graph'].')';
        }, array_keys($this->config), $this->config);

        $choice = $this->choice('Which state machine would you like to know about?', $choices, 0);

        $choice = substr($choice, 0, strpos($choice, "\t"));

        $this->info('You have just selected: '.$choice);

        $this->input->setArgument('graph', $choice);
    }